MONTHLY WEATHER BULLETIN

Transcription

CLIMATE ANNUAL
2015
CLIMATE ANNUAL 2015
TEMPERATURE
ANNUAL MEAN AIR TEMPERATURES
Annual mean air temperatures were mainly on
or below their Long-Term Average (LTA).
Annual mean air temperatures differences
ranged from -0.6°C at Ballyhaise, Co Cavan
with a mean temperature of 9.1°C, its lowest
annual mean temperature in five years to 0.5°C
at Waterford (Tycor), with a mean temperature
of 11.0°C, the joint highest annual mean
temperature of 2015. Countrywide annual
mean air temperatures ranged from 8.5°C at
Knock Airport (difference from LTA -0.1°C), its
coolest year since 2010 to 11.0°C at already
mentioned Waterford (Tycor) and at Sherkin
Island, Co Cork (difference from LTA 0.1°C).
and East to just above normal in the North
and Southeast.
February: Monthly mean air temperatures
were all below their LTA with the largest
differences reported in the southern half of the
country. Deviations from monthly LTAs were
over -1.5°C in the Southwest and nearest to
normal in the North.
March: Nearly all monthly mean temperatures
were below their LTA with the largest
differences from average of over 1.0°C,
reported at isolated stations in the Southwest,
Northwest and Midlands. Deviations ranged
from nearly -1.5°C in the Northwest to just
above LTA in the Southeast.
MONTHLY OVERVIEW
January: Monthly mean air temperatures were
mainly on or below their LTA. Differences
ranged from just over -1.0°C in the Midlands
April: Monthly means were below average in
mainly the northern half of the country.
Differences from LTA ranged from -1.0°C in the
Northwest to over 1.0°C at in the Southwest.
ANNUAL MEAN AIR TEMPERATURE
ANNUAL MEAN AIR TEMPERATURE
(°C)
DIFFERENCE FROM 1981-2010 AVERAGE
(°C)
CLIMATE ANNUAL 2015
May: Monthly mean air temperatures were on
or below LTA everywhere, with deviations over
-1.0°C from their LTA in the West and North.
Deviations from LTA ranged from over
-1.5°C in parts of the West and Northwest to
on LTA mean temperatures in the Southeast.
October: The majority of stations reported
above LTA mean air temperatures with
scattered isolated stations reporting below LTA
values. Deviations from LTA ranged from over
-0.5°C in the Northwest to nearly 1.0°C in parts
of the Midlands, Northwest and South.
June: Monthly mean air temperatures were
nearly all below LTA with slightly above LTA
values in isolated areas in the South, Southeast
and East. Deviations below LTA were over 1.0°C in coastal counties in Western and
Northern parts with the largest difference
reported in the Northwest with nearly -1.5°C.
The largest difference above LTA was reported
in the Southeast with nearly 0.5°C.
November: All stations reported above LTA
mean air temperatures for November, with
largest deviations from LTA in the southern
half of the country. Deviations ranged from
nearly 1.0°C in the North to nearly 3.0°C in the
South.
July: Monthly mean air temperatures were all
below LTA with highest deviations from
average in parts of the Northwest, West and
Midlands. Differences from LTA were as much
as -2°C in the Northwest.
December: All stations reported above LTA
mean air temperatures for December, with
deviations from LTA over 3.0°C in parts of the
East, Southeast and South. Differences from
LTA ranged from over 1.0°C in Atlantic coastal
areas to nearly as 3.5°C in the East.
SEASONAL OVERVIEW
August: Monthly mean air temperatures were
all below LTA. The majority of stations
reported deviations from LTA of over 1.0°C
with the highest deviations recorded in parts
of the Northwest, West and Southwest.
Differences from LTA were over -1.5°C in the
West.
September: All monthly mean temperatures
were below average with deviations from
normal nearly -1.5°C in parts of the East and
Midlands. Monthly mean temperatures were
nearest to normal in the West and Southeast
which were just below their September LTA.
Winter: Nearly all mean temperatures were
below their LTA for winter, with the exception
of isolated stations in the West, Southwest and
North. Differences from seasonal LTA ranged
from over -1.0°C in the East to just below 0.5°C
in the Northwest.
Spring: Nearly all seasonal temperatures were
below their LTA for spring, with the exception
of some stations in the southern half of the
country. Differences from spring LTAs ranged
from over -1.0°C in the Northwest to just
below to 0.5°C in the Southeast.
CLIMATE ANNUAL 2015
Summer: All seasonal mean temperatures
were below their seasonal LTA. Differences
from seasonal LTA were largest in the West
and northwest with over -1.5°C from average.
Summer means were nearest to normal in
parts of the Midlands and Southeast with
differences from average just under -0.5°C.
Autumn: A small minority of stations in the
East, Midlands and Northwest reported below
LTA mean temperatures for autumn with above
LTA temperatures elsewhere. Seasonal mean
temperature variations ranged from just under
-0.5°C in the Northwest to 1.0°C in the South.
HIGHEST MAXIMUM TEMPERATURES
The majority of highest annual maxima were
recorded between the June 30th and July 6th,
with the highest temperature of the year of
26.1°C reported at Dublin (Glasnevin) on June
30th, its highest June maximum in 15 years.
LOWEST MINIMUM TEMPERATURES
Nearly all lowest annual minima were recorded
on January 19th and between February 2nd
and 5th with the years lowest temperature of
-7.9°C recorded at Dublin Airport on February
3rd, its lowest for February since 1956.
AIR FROST
The number of days measuring air frost
ranged from none at Roche’s Point, Co Cork to
51 days at Markree, Co Sligo.
LOWEST GRASS MINIMUM AND GROUND
FROST
The year’s lowest grass minimum was -12.7°C
at Thomastown (Mt Juliet), Co Kilkenny on
January 19th. The number of days with ground
frost ranged from 15 days at Sherkin Island, Co
Cork to 151 days at Horseleap, Co Offaly.
NOTES & DEFINITIONS
A ‘day’ refers to the period from 0900 UTC on
a
particular day to 0900 UTC on the following
day.
Mean air temperature: mean air temperature
over a period is taken as the mean of the
daily maxima and daily minima (averaged
separately over the period).
Air Frost: Days with ‘air frost’ are a day where
the minimum air temperature reported is less
than 0.0°C.
Ground Frost: Days with ‘ground frost’ are a
day where the grass minimum temperature
reported is less than 0.0°C.
CLIMATE ANNUAL 2015
ANNUAL AIR TEMPERATURE VALUES (
FOR SELECTED STATIONS)
STATION
COUNTY
CARLOW (OAK PARK)
CARLOW
BALLYHAISE
CAVAN
CAVAN (DRUMCONNICK)
CAVAN
CARRON
CLARE
SHANNON AIRPORT
CLARE
BALLINCURRIG (PEAFIELD)
CORK
CLOYNE (LISANLEY)
CORK
CORK AIRPORT
CORK
FERMOY (MOORE PARK)
CORK
SHERKIN ISLAND
CORK
BALLYSHANNON (CATHLEEN'S FALL)
DONEGAL
FINNER
DONEGAL
GLENTIES HATCHERY
DONEGAL
MALIN HEAD
DONEGAL
CASEMENT
DUBLIN
DUBLIN AIRPORT
DUBLIN
PHOENIX PARK
DUBLIN
ATHENRY
GALWAY
MAAM VALLEY
GALWAY
MACE HEAD
GALWAY
ARDFERT (LISCAHANE)
KERRY
VALENTIA OBSERVATORY
KERRY
SLIEVE BLOOM MTS (NEALSTOWN)
LAOIS
MOUNT RUSSELL
LIMERICK
SPRINGFIELD CASTKE
LIMERICK
ARDEE (BOHARNAMOE)
LOUTH
BELMULLET
MAYO
CLAREMORRIS
MAYO
DELPHI LODFE
MAYO
KNOCK AIRPORT
MAYO
NEWPORT
MAYO
STRAIDE
MAYO
DUNSANY
MEATH
CARRICKMACROSS (DUNOGE)
MONAGHAN
DERRYGREENAGH
OFFALY
EDENDERRY (BALLINLA)
OFFALY
FETHARD (PARSONSHILL)
TIPPPERARY
GURTEEN
TIPPPERARY
LITTLETON
TIPPPERARY
DUNGARVAN (CARRIGLEA)
WATERFORD
WATERFORD (TYCOR)
WATERFORD
MULLINGAR
WESTMEATH
CAHORE (KILMICHAEL HOUSE)
WEXFORD
JFK PARK
WEXFORD
JOHNSTOWN CASTLE
WEXFORD
ASHFORD (CRONYKEERY)
WICKLOW
GLENEALY (KILMACURRAGH PK)
WICKLOW
MEAN MAX
(°C)
MEAN MIN
(°C)
MEAN
(°C)
DIFF. FROM
LTA (°C)
HIGHEST MAXIMUM
LOWEST MINIMUM
(°C)
(°C)
13.8
12.8
13.5
12.7
13.9
13.6
14.4
13.0
13.9
13.2
13.0
12.8
12.9
12.2
13.4
13.3
13.9
13.3
13.6
12.7
14.2
13.5
12.7
13.2
14.1
14.0
12.8
12.9
13.4
11.6
13.3
13.5
13.1
13.4
13.6
13.4
13.3
13.3
13.4
14.6
14.5
13.1
14.3
13.9
13.0
14.2
13.2
6.1
5.5
5.4
6.3
7.1
6.1
7.3
6.8
6.2
8.9
6.8
6.5
5.7
7.0
5.8
5.6
6.1
5.8
6.8
8.0
7.0
8.3
5.2
6.5
6.3
5.5
7.3
5.7
7.1
5.3
7.0
5.7
5.5
5.3
5.6
5.2
5.9
5.8
5.9
6.5
7.5
5.1
6.6
6.5
7.3
6.2
6.8
9.9
9.1
9.4
9.5
10.5
9.8
10.8
9.9
10.1
11.0
9.9
9.6
9.3
9.6
9.6
9.5
10.0
9.5
10.2
10.4
10.6
10.9
9.0
9.8
10.2
9.8
10.1
9.3
10.2
8.5
10.1
9.6
9.3
9.4
9.6
9.3
9.6
9.6
9.6
10.6
11.0
9.1
10.5
10.2
10.1
10.2
10.0
-0.3
-0.6
-0.1
0
-0.2
0.2
0
0
0.2
-0.1
0.2
-0.2
-0.1
-0.2
-0.2
-0.3
0.2
-0.5
0
-0.2
0.1
0
0
0.1
0.3
0.2
-0.2
-0.2
-0.3
-0.1
-0.3
-0.1
-0.1
-0.1
0.3
-0.2
0.2
-0.2
0.2
0.1
0.5
-0.2
0
0.2
-0.2
0
0
24.0
24.0
25.5
20.6
22.9
22.5
23.7
21.5
22.0
18.6
24.0
23.9
23.4
24.7
25.4
24.7
25.6
22.8
20.7
20.9
22.5
20.5
22.8
21.6
22.9
25.7
22.8
22.1
21.6
21.3
22.0
22.0
24.4
25.0
24.9
23.6
23.9
23.1
23.1
23.1
23.4
23.2
24.0
24.0
22.1
23.6
22.8
-5.6
-5.2
-5.2
-1.9
-3.3
-3.7
-2.4
-2.5
-4.0
-0.2
-3.2
-3.4
-4.5
-1.0
-7.2
-7.9
-5.5
-5.4
-2.2
-0.9
-4.2
-2.2
-3.7
-3.8
-3.5
-6.0
-1.1
-3.5
-1.9
-2.3
-0.8
-5.0
-7.1
-5.8
-6.1
-4.6
-4.0
-6.4
-3.9
-3.5
-2.9
-5.8
-3.1
-3.0
-1.8
-4.9
-2.4
CLIMATE ANNUAL 2015
DAILY MEAN TEMPERATURES
ABOVE AVERAGE
DIFFERENCE FROM AVERAGE 1981-2010 (°C)
BELOW AVERAGE
l
BELMULLET
MALIN HEAD
l
DUBLIN AIRPORT
MULLINGAR
l
l
l
SHANNON AIRPORT
l
CASEMENT AERODROME
l
l
CORK AIRPORT
CLIMATE ANNUAL 2015
MONTHLY MEAN TEMPERATURE (°C)
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
JULY
AUGUST
SEPTEMBER
OCTOBER
NOVEMBER
DECEMBER
CLIMATE ANNUAL 2015
MONTHLY MEAN MAXIMUM TEMPERATURE (°C)
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
JULY
AUGUST
SEPTEMBER
OCTOBER
NOVEMBER
DECEMBER
CLIMATE ANNUAL 2015
MONTHLY MEAN MINIMUM TEMPERATURE (°C)
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
AUGUST
SEPTEMBER
JULY
OCTOBER
NOVEMBER
DECEMBER
CLIMATE ANNUAL 2015
SEASONAL MEAN TEMPERATURE (°C)
WINTER
*
SUMMER
* WINTER REFERS TO DECEMBER 2014, JANUARY 2015 AND FEBRUARY 2015
SPRING
AUTUMN
CLIMATE ANNUAL 2015
SEASONAL MEAN TEMPERATURE DIFFERENCE FROM 1981-2010 AVERAGES (°C)
WINTER
*
SUMMER
SPRING
AUTUMN
CLIMATE ANNUAL 2015
SOIL
ANNUAL DAILY
SOIL TEMPERATURES
(°C) AT 30 cm
AND
SOIL MOISTURE DEFICITS
(mm)
CLIMATE ANNUAL 2015
RAINFALL
ANNUAL RAINFALL
MONTHLY OVERVIEW
The majority of annual rainfall totals were
above their Long-Term Average (LTA) with
below LTA values reported at some stations
mainly located in Cork, Kerry, Waterford,
Wexford, Wicklow and Galway. Percentage of
LTA values ranged from 79% at Inishbofin, Co
Galway with 1,011.6 mm, its highest annual
total in six years to 162% at Roscommon
(Vocational School) with 1720.1 mm. The
lowest annual rainfall total was at Dublin
(Ringsend) with 707.0 mm (105% of LTA) with
the year's highest annual rainfall in a low-lying
area (region below 200 m) reported at
Drummin (Tawnyard), Co Mayo with an annual
total of 3,504.3 mm. The overall highest annual
rainfall was at a gauge in the Cummeragh
Mtns, Co Kerry with 4,127.5 mm (124% of its
LTA), its highest annual rainfall on available
record since 2002.
January: Variable rainfall across the country.
The majority of percentage of LTA values were
above average, with below LTA values reported
in parts of the South, Southeast, East and east
Midlands. LTA values were above 150% in parts
of the western half of the country. Percentage
of LTA values ranged from around 40% at in
the southeast Midlands to near 190% in the
Northwest.
February: Rainfall was mainly below average
with exception of some areas in the North,
West, Southwest and isolated areas in the
Midlands. Some stations mainly in the East and
Southeast had LTAs of below 50%. Percentage
of LTA totals ranged from just over 20% in the
Midlands to nearly 150% in the North.
%
ANNUAL RAINFALL
(mm)
ANNUAL PERCENTAGE OF 1981-2010
AVERAGE RAINFALL
CLIMATE ANNUAL 2015
March: Percentage of LTA values were variable,
with mainly below LTA values in parts of the
Southwest, South, Southeast, East and
Midlands. Percentage of LTA values were
around half in parts of the East and Southeast.
Percentage values ranged from just over 50%
in the southeast Midlands to 168% in the west
Midlands.
April: Percentage of LTA rainfall values were
mainly below average with above LTA rainfall
totals mainly recorded in parts of the
Northwest, Southwest and West. Some low
monthly totals in places were attributed to a
‘dry spell’ between the 3rd and the 27th.
Percentage of LTA values ranged from just
over 10% in the Southeast to just under 140%
in the Southwest.
May: Percentage of LTA rainfall values were
near or above average everywhere. Nearly a
quarter of stations across the country had LTA
values of double or more their normal.
Precentage of LTA values ranged from just
over 90% in the West to nearly 270% in the
Midlands.
June: The majority of stations reported below
LTA rainfall with the exception of stations in
parts the North, Northwest and West. A
proportion of stations reported a ‘dry spell’ or
‘absolute drought’ of varying lengths between
the 2nd and 26th, namely stations in the
eastern half of the country and in the parts of
the West and Southwest. Percentage of LTA
values were in lowest in the East with just over
15% and highest in the Southwest with nearly
120%.
July: The majority of stations reported above
LTA rainfall with double or more the normal
July rainfall at some stations in West, South,
Southeast and East. Below LTA rainfall values
were reported in isolated areas, mainly in the
Midlands and Southwest. Percentage of LTA
values ranged from just over 70% in the
Midlands to 225% in the West.
August: Rainfall totals were mainly above LTA
with around a quarter of stations around the
country reporting below LTA values.
Percentage of LTA values ranged from 55% at
stations located on the Islands in the West to
just under 180% at inland western stations.
September: Around three quarters of stations
reported below LTA rainfall with the lowest
values mainly in parts of the North, East and
Midlands. Percentage of LTA totals were
highest in the West, Southwest and South with
near double the normal in these places. A few
places in the East reported a ‘dry spell’ from
Aug 26th to Sept 10th. Percentage of LTAs
ranged from just 20% in the East to 200% in
the South.
October: All stations across the country
reported below LTA rainfall for October.
Isolated stations across the country reported a
‘dry spell’ of varying lengths between the 1st
and 24th. Percentage of LTA values were
lowest in the Southwest with 30% and highest
in the East with just over 80%.
November: Over three quarters of stations
reported above LTA rainfall with below LTA
values reported in parts of the East, Southeast
and South. Percentage of LTA values in parts
of North, Northwest, West, Midlands and
Southwest were double. Percentage of LTA
values ranged from just over 70% in the
Southeast to just over 230% in the Southwest.
CLIMATE ANNUAL 2015
December: Rainfall totals were all above their
LTA. Nearly three-quarters of stations reported
double or more of their normal December
rainfall, with parts of South, Southwest and
Midlands reporting over 350% of their LTAs.
Percentage of LTA values ranged just over
110% in the North to just under 400% in the
Midlands.
SEASONAL OVERVIEW
Winter: Percentage of LTA rainfall values for
winter were variable. Percentage of seasonal
LTA values ranged from just under 50% in the
Southeast to just over 175% in the North.
Spring: Over half of stations reported rainfall
totals above LTA with below LTA rainfall in
parts of southern half of the country.
Percentage of spring LTAs ranged from over
60% in the East to 170% in the Northwest and
North.
Summer: Percentage of seasonal rainfall totals
were variable. Percentage of summer LTAs
ranged from just over 50% in western coastal
areas to just under 150% in the west Midlands.
RAIN DAYS, WET DAYS AND
VERY WET DAYS
The number of rain days ranged from 174 at
Celbridge (Ardrass House), Co Kildare to 295
at Roundstone, Co Galway, its highest number
of annual rain days on record since the station
opened in 1986.
The number of wet days ranged from 133 at
Malahide Castle, Co Dublin to 268 at Mulrany
(Doughbeg), Co Mayo.
The number of very wet days were up to 119
days at both Maam Valley, Co Galway and at
Glenealy (Kilmacurragh Park), Co Wicklow.
NOTES & DEFINITIONS
A ‘day’ refers to the period from 0900 UTC on
a particular day to 0900 UTC on the following
day.
Rain day: Day reporting 0.2 mm or more rain.
Wet day: Day reporting 1.0 mm or more rain.
Very wet day: Day with 10.0 mm or more rain.
Autumn: Percentage of seasonal rainfall totals
were variable across the country. Percentage of
autumn LTAs ranged from just over 50% in the
East to 135% in the Southwest.
Dry Spell: A period of 15 or more consecutive
days to none of which is credited 1.0 mm or
more of precipitation.
GREATEST DAILY FALLS (GDF)
Absolute Drought: A period of 15 or more
consecutive days to none of which is credited
0.2 mm or more of precipitation.
The most rainfall in 24-hours was reported at
Keenagh Beg, Co Mayo on the December 4th
with 160.8 mm, its highest daily rainfall on
record since the station opened in 1944.
Partial Drought: A period of at least 29
consecutive days where the mean daily rainfall
does not exceed 0.2 mm.
CLIMATE ANNUAL 2015
TABLE OF STATIONS REPORTING DRY SPELLS IN 2015
(ONLY STATIONS WITH FULL DAILY DATA USED)
STATION
CARLOW (OAK PARK)
TULLOW (WATERWORKS)
BELGOOLY
KILWORTH (KILALLY)
NEWMARKER BALLINATON
SHERKIN ISLAND
BALLYEDMONDUFF HSE
DUBLIN (GLASNEVIN)
DUBLIN (MERRION SQ)
DUBLIN (RINGSEND)
DUBLIN AIRPORT
DUN LAOGHAIRE
DUBLIN (PHOENIX PK)
INISHERE
PORTUMNA (OPW)
ARDFERT (LISCAHANE)
ARDFERT (BALLUMACQUIN)
BAWNASKEHY (CASTLEISLAND)
ATHY (CHANTERLANDS)
ATHY (LEVITSTOWN)
NAAS (CBS)
NAAS (OBERSTOWN)
COOLGREANY (CASTLEWARREN)
DUNGARVAN (CASTLEFIELD)
KILKENNY (LAVISTOWN HSE)
KILKEENY (GREENSHILL)
KILKEENY (GREENSHILL)
PAULSTOWN (SHANKILL CASTLE)
DURROW
SLIEVE BLOOM MTNS (NEALSTOWN)
CASTLEMAHON (WW)
PATRICKSWELL (DOONEEN)
SPRINGFIELD CASTLE
SPRINGFIELD CASTLE
OMEATH
DUNMOE (GRAIGS LANE)
DUNSANY
DUNSHAUGHLIN (LAGORE)
RATAOTH
WARRENSTOWN
CORBERTSTOWN
DERRYGREENAGH
EDENDERRY (BALLINLA)
MEELICK (VICTORIA LOCK)
BOYLE (MARIAN RD)
KILSHEELAN
NENAGH (CONNOLLY PK)
WATERFORD (TYCOR)
ATHLONE (OPW)
DEVLIN CASTLE
MULLINGAR
BOOLAVOGUE (KNOCKAVOCCA)
CAHORE (KILMICHAEL HSE)
CLONROCHE (KNOXTOWN)
DUNCANNON
ENNISCORTHY (BROWNSWOOD)
FOULKESMILL (LONGRAIGUE)
GLYNN (BULGAN)
GLYNN (BULGAN)
GLYNN (BULGAN)
JOHNSTOWN CASTLE
MONAMOLIN
OLD ROSS (DUNANORE)
TAGHMON (KILGARVAN)
ARLOW (BALLYRICHARD HSE)
ASHFORD (GLANMORE GARDENS)
CARNEW (CRONYHORN)
GLENEALY (KILMACURRAGH HSE)
KILBRIDE (TOGHER)
ROUNDWOOD (FILTER BEDS)
COUNTY
CARLOW
CORK
CORK
CORK
CORK
DUBLIN
DUBLIN
DUBLIN
DUBLIN
DUBLIN
DUBLIN
DUBLIN
GALWAY
GALWAY
KERRY
KERRY
KERRY
KILDARE
KILDARE
KILDARE
KILDARE
KILKENNY
KILKENNY
KILKENNY
KILKENNY
KILKENNY
KILKENNY
LAOIS
LAOIS
LIMERICK
LIMERICK
LIMERICK
LIMERICK
LOUTH
MEATH
MEATH
MEATH
MEATH
MEATH
OFFALY
OFFALY
OFFALY
OFFALY
ROSCOMMON
TIPPERARY
TIPPERARY
WATERFORD
WESTMEATH
WESTMEATH
WESTMEATH
WEXFORD
WEXFORD
WEXFORD
WEXFORD
WEXFORD
WEXFORD
WEXFORD
WEXFORD
WEXFORD
WEXFORD
WEXFORD
WEXFORD
WEXFORD
WICKLOW
WICKLOW
WICKLOW
WICKLOW
WICKLOW
WICKLOW
WICKLOW
WICKLOW
START DATE
END DATE
LENGTH
05-JUN-15
05-JUN-15
06-OCT-15
05-JUN-15
06-OCT-15
08-OCT-15
06-JUN-15
05-JUN-15
02-JUN-15
05-JUN-15
05-JUN-15
02-JUN-15
05-JUN-15
06-JUN-15
05-JUN-15
07-OCT-15
07-OCT-15
06-OCT-15
05-JUN-15
05-JUN-15
06-JUN-15
06-JUN-15
05-JUN-15
05-JUN-15
05-JUN-15
12-APR-15
05-JUN-15
05-JUN-15
05-JUN-15
07-JUN-15
06-OCT-15
05-JUN-15
06-JUN-15
06-OCT-15
07-JUN-15
05-JUN-15
05-JUN-15
05-JUN-15
05-JUN-15
05-JUN-15
06-JUN-15
07-JUN-15
05-JUN-15
06-JUN-15
07-JUN-15
06-JUN-15
06-JUN-15
27-AUG-15
07-JUN-15
22-SEP-15
07-JUN-15
05-JUN-15
06-JUN-15
05-JUN-15
12-JUN-15
12-JUN-15
12-JUN-15
25-JAN-15
03-APR-15
05-JUN-15
05-JUN-15
05-JUN-15
27-AUG-15
26-AUG-15
05-JUN-15
05-JUN-15
26-AUG-15
05-JUN-15
05-JUN-15
06-JUN-15
06-JUN-15
26-AUG-15
24-JUN-15
24-JUN-15
22-OCT-15
20-JUN-15
20-OCT-15
22-OCT-15
24-JUN-15
24-JUN-15
24-JUN-15
24-JUN-15
24-JUN-15
24-JUN-15
26-JUN-15
30-JUN-15
24-JUN-15
22-OCT-15
22-OCT-15
22-OCT-15
24-JUN-15
24-JUN-15
24-JUN-15
24-JUN-15
24-JUN-15
24-JUN-15
24-JUN-15
26-APR-15
24-JUN-15
24-JUN-15
24-JUN-15
24-JUN-15
22-OCT-15
20-JUN-15
20-JUN-15
22-OCT-15
24-JUN-15
24-JUN-15
19-JUN-15
19-JUN-15
19-JUN-15
19-JUN-15
24-JUN-15
24-JUN-15
24-JUN-15
24-JUN-15
24-JUN-15
20-JUN-15
24-JUN-15
10-SEP-15
23-JUN-15
19-OCT-15
24-JUN-15
26-JUN-15
26-JUN-15
24-JUN-15
26-JUN-15
26-JUN-15
26-JUN-15
11-FEB-15
23-APR-15
23-JUN-15
20-JUN-15
26-JUN-15
10-SEP-15
10-SEP-15
24-JUN-15
24-JUN-15
10-SEP-15
24-JUN-15
24-JUN-15
24-JUN-15
24-JUN-15
10-SEP-15
20
20
17
16
15
15
19
20
23
20
20
23
22
25
20
16
16
17
20
20
19
19
20
20
20
15
20
20
20
18
17
16
15
17
18
20
15
15
15
15
19
18
20
19
18
15
19
15
17
28
18
22
21
20
15
15
15
18
21
19
16
22
15
16
20
20
16
20
20
19
19
16
CLIMATE ANNUAL 2015
CUMULATIVE
DAILY RAINFALL (mm)
AND
31-DAY MOVING
AVERAGE 1981-2010 (mm)
CLIMATE ANNUAL 2015
MONTHLY RAINFALL TOTALS (mm)
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
JULY
AUGUST
SEPTEMBER
OCTOBER
NOVEMBER
DECEMBER
CLIMATE ANNUAL 2015
SEASONAL PERCENTAGE OF 1981-2010 AVERAGE RAINFALL (%)
WINTER
% OF AVERAGE *
SUMMER
% OF AVERAGE
SPRING
% OF AVERAGE
AUTUMN
% OF AVERAGE
CLIMATE ANNUAL 2015
SEASONAL RAINFALL TOTALS (mm)
WINTER
*
SUMMER
SPRING
AUTUMN
CLIMATE ANNUAL 2015
ANNUAL NUMBER OF RAIN DAYS, WET DAYS AND VERY WET DAYS
(NUMBER OF DAYS)
RAIN DAYS
≥ 0.2 mm
WET DAYS
≥ 1.0 mm
VERY WET DAYS
≥ 10.0 mm
DIFFERENCE FROM LTA 1980-2010 FOR RAIN DAYS, WET DAYS AND VERY WET DAYS
(NUMBER OF DAYS)
DIFFERENCE FROM AVERAGE
RAIN DAYS
≥ 0.2 mm
WET DAYS
≥ 1.0 mm
VERY WET DAYS
≥ 10.0 mm
TABLE OF STATIONS REPORTING ‘ABSOULTE DROUGHT’
(TABLE ONLY INCLUDES STATIONS WITH FULL DAILY DATA)
STATION
ATHY (CHANTERLANDS)
ROSCREA (NEWROAD)
BOOLAVOGUE (KNOCKAVOCCA)
BUNCLODY (CORRAGH)
GOREY (GARDEN CITY)
ARLOW (BALLYRICHARD HSE)
ASHORD (CRONKERRY)
BALLYNAHINCH
CARNEW (CRONYHORN)
GLENEALY (KILMACURRAGH HSE)
KILBRIDE (TOGHER)
NEWTOWNMOUNTKENNEDY
COUNTY
START DATE
END DATE
KILDARE
06-JUN-15
05-JUN-15
05-JUN-15
05-JUN-15
06-JUN-15
26-AUG-15
05-JUN-15
07-JUN-15
05-JUN-15
07-JUN-15
05-JUN-15
06-JUN-15
06-JUN-15
07-JUN-15
09-JUN-15
07-JUN-15
24-JUN-15
19-JUN-15
24-JUN-15
24-JUN-15
24-JUN-15
10-SEP-15
26-JUN-15
24-JUN-15
24-JUN-15
24-JUN-15
19-JUN-15
24-JUN-15
24-JUN-15
24-JUN-15
25-JUN-15
24-JUN-15
TIPPERARY
WEXFORD
WEXFORD
WEXFORD
WEXFORD
WEXFORD
WICKLOW
WICKLOW
WICKLOW
WICKLOW
WICKLOW
WICKLOW
WICKLOW
WICKLOW
WICKLOW
LENGTH
19
15
20
20
19
16
22
18
20
18
15
19
19
18
17
18
CLIMATE ANNUAL 2015
ANNUAL RAINFALL VALUES
COUNTY
RAINFALL
CARLOW (OAK PARK)
CARLOW
BALLYHAISE
CAVAN
928.2
1258.1
1303.7
2026.2
1263.6
1447.4
1207.3
1218.9
1268.9
1546.1
1491.7
1482.0
836.8
878.1
853.3
1569.8
1273.3
1323.3
1729.0
846.0
793.7
1115.8
1303.5
1276.9
1248.6
1570.5
2175.8
1217.5
1515.4
1233.7
850.1
1092.8
1446.0
1848.5
2071.6
960.7
931.2
1056.8
1153.8
946.7
1334.9
1380.8
1545.0
979.6
1063.3
1354.0
1114.9
1201.0
1248.0
1063.4
1055.6
1617.9
STATION
BELTURBET (NAUGHAN)
CAVAN
CARRON
CLARE
SHANNON AIRPORT
CLARE
CORK AIRPORT
CORK
FERMOY (MOORE PARK)
CORK
ROCHE'S POINT
CORK
SHERKIN ISLAND
CORK
DONEGAL
FINNER
DONEGAL
MALIN HEAD
DONEGAL
CASEMENT
DUBLIN
DUBLIN AIRPORT
DUBLIN
PHOENIX PARK
DUBLIN
ATHENRY
GALWAY
MACE HEAD
GALWAY
ARDFERT (LISCAHANE)
KERRY
KERRY
ATHY (CHANTERLANDS)
KILDARE
CELBRIDGE (ARDRASS HOUSE)
KILDARE
COOLGREANY CASTLEWARREN
KILKENNY
MULLINAVAT (GLENDONNELL)
KILKENNY
CLONASLEE WW
LAOIS
SLIEVE BLOOM MTS (NEALSTOWN)
LAOIS
DRUMSHANBO
LEITRIM
LOUGH GLENCAR
LEITRIM
CASTLEMAHON WW
LIMERICK
MOUNT RUSSELL
LIMERICK
TERMONBARRY
LONGFORD
ARDEE (BOHARNAMOE)
LOUTH
DUNDALK (ANNASKEAGH WW)
LOUTH
BELMULLET
MAYO
KNOCK AIRPORT
MAYO
NEWPORT
MAYO
DUNSANY
MEATH
FAIRYHOUSE RACECOURSE
MEATH
CARRICKMACROSS (DUNOGE)
MONAGHAN
DERRYGREENAGH
OFFALY
ENDEDERRY (BALLINLA)
OFFALY
MOUNT DILLON
ROSCOMMON
ARDTARMON
SLIGO
MARKREE
SLIGO
FETHARD (PARSONSHILL)
TIPPERARY
GURTEEN
TIPPERARY
WATERFORD
WATERFORD (TYCOR)
WATERFORD
MULLINGAR
WESTMEATH
JFK PARK
WEXFORD
JOHNSTOWN CASTLE
WEXFORD
ASHFORD (CRONYKEERY)
WICKLOW
GLENBRIDE LODGE
WICKLOW
(mm)
%
OF
LTA
110
125
129
126
129
118
117
125
107
131
119
134
111
116
110
132
95
113
111
102
104
103
114
109
107
126
120
120
118
130
104
111
116
137
129
110
110
114
125
108
127
129
123
101
112
113
108
124
117
100
111
106
(FOR SELECTED STATIONS)
GDF
(mm)
29.8
33.5
42.0
61.7
24.7
61.4
47.6
36.5
43.3
44.1
53.6
66.0
30.8
30.8
29.8
34.5
58.3
51.3
39.6
24.6
27.5
37.4
53.2
36.3
29.5
50.9
50.6
29.1
38.7
40.6
33.2
41.9
36.8
60.1
77.3
27.1
27.1
52.4
35.0
31.6
33.2
39.6
48.8
31.8
23.0
58.2
40.9
36.4
57.0
34.6
45.6
69.5
RAIN
DAYS
209
243
239
258
237
235
230
212
249
250
255
257
202
199
203
254
250
252
262
204
174
222
195
251
244
257
262
225
252
227
221
227
273
281
273
223
197
223
219
206
242
245
267
224
231
207
187
238
189
215
182
250
WET
DAYS
VERY WET
DAYS
158
189
190
222
199
179
181
165
183
202
202
203
152
144
147
207
203
201
230
151
148
177
175
187
190
207
230
186
213
193
153
165
206
230
228
161
156
173
168
159
197
200
212
170
184
167
156
175
162
161
140
197
29
39
31
71
43
44
37
42
34
51
46
44
15
22
18
52
30
34
60
17
14
28
41
34
35
53
67
32
49
35
17
34
37
58
71
23
14
24
28
19
37
39
44
23
26
47
32
36
41
31
30
56
CLIMATE ANNUAL 2015
SUNSHINE
ANNUAL SUNSHINE
Annual sunshine hours were mainly above
Long-Term Average (LTA) with below average
annual sunshine reported in parts of the
coastal Southwest, Northwest and West as well
as in some inland western areas. Percentage of
LTA values and sunshine hours ranged from
82% and 980.8 hours at Knock Airport, Co
Mayo, its lowest annual sunshine since the
station opened in 1997 to 112% and 1,573.9
hours at Dungarvan (Carriglea), Co. Waterford.
MONTHLY OVERVIEW
January: Sunshine totals were mainly above
LTA with a few isolated areas in the Southwest
and West reporting below average values.
Percentage of LTA values ranged from just
under 80% in the West to just over 150% in
the East.
TOTAL ANNUAL SUNSHINE HOURS
(HRS)
February: Sunshine totals were variable across
the country with below average totals in the
northern half of the country. Percentage of LTA
values were from around 70% in the North to
over 130% of LTA in the Southeast.
March: Sunshine totals were all above LTA
everywhere with percentage values just over
100% of LTA in the West. The month’s highest
percentage of LTA was in the Southeast with
just over 150%.
April: All monthly totals were above LTA.
Percentage of LTA values ranged from 110% to
160%.
May: Sunshine totals were mainly below LTA.
Percentage of LTA values were lowest in the
West with just below 60% and highest in the
Southeast with just over 100%.
ANNUAL PERCENTAGE OF 1981-2010
AVERAGE SUNSHINE
CLIMATE ANNUAL 2015
June: Sunshine totals were mainly above LTA
with below LTA values reported in parts of the
western half of the country. Percentage of LTA
values ranged from just below 90% in the
Southwest to over 120% in the East.
July: Nearly all sunshine totals were on or
below LTA for July. Percentage of LTA values
ranged from just over 60% in the West to just
over 100% in the Southwest.
August: Percentage of LTA sunshine values
were variable across the country. Percentage of
LTAs ranged from over 60% in the West to
115% in the Southwest.
September: Sunshine totals were near or
above their LTA with exception of some places
in the West, Northwest and East. Percentage
values ranged from just under 80% to 120%.
October: Percentage of LTA sunshine values
were nearly all below normal. The lowest
percentage of LTA value was under 80% the
Southwest with the highest LTA value just
under 120% in the Northwest.
November: Percentage of Long-Term Average
(LTA) sunshine values were all near or below
their monthly values ranging from just under
60% in the Southeast to just under average in
the Southwest.
December: Percentage of LTA sunshine values
were all below normal. The lowest percentage
of LTA value was just over 5% in the South
with up to over 90% reported in the East.
SEASONAL OVERVIEW
Winter: Percentage of sunshine LTA values
were variable and ranged from just under 80%
in the West to just below 150% in the
Southeast.
Spring: Sunshine totals were near or above
their seasonal LTAs. Percentage of spring LTA
sunshine values ranged from just under 100%
in the West to just under 130% in the
Southeast.
Summer: Percentage of summer sunshine
totals were variable ranging from 70% in the
West to just under 110% in the Southeast.
Autumn: Percentage of autumn sunshine
totals were all below LTA. Percentage of
seasonal LTA sunshine values ranged from just
under 80% in the West to 95% in the
Northwest.
DULL DAYS
The number of dull days ranged from 50 at
Arklow (Ballyrichard Hse), Co Wicklow to 131
days at Cork Airport.
HIGHEST DAILY SUNSHINE
The year’s sunniest day was at Dublin Airport
on June 10th with 15.7 hours, its highest
annual daily sunshine since 2010.
NOTES & DEFINITIONS
A ‘day’ refers to the period from 0000 UTC to
2359 UTC.
Dull day: Day reporting less than 0.5 hours of
sunshine.
CLIMATE ANNUAL 2015
MONTHLY SUNSHINE TOTALS (HOURS)
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
JULY
AUGUST
SEPTEMBER
OCTOBER
NOVEMBER
DECEMBER
CLIMATE ANNUAL 2015
AVERAGE DAILY GLOBAL RADIATION (kWh/m2)
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
JULY
AUGUST
SEPTEMBER
OCTOBER
NOVEMBER
DECEMBER
CLIMATE ANNUAL 2015
SEASONAL SUNSHINE HOURS
WINTER
*
SUMMER
(HOURS)
SPRING
AUTUMN
CLIMATE ANNUAL 2015
SEASONAL PERCENTAGE OF 1981-2010 AVERAGE SUNSHINE (%)
WINTER
*
SUMMER
SPRING
AUTUMN
CLIMATE ANNUAL 2015
ANNUAL SUNSHINE VALUES
(FOR SELECTED STATIONS)
COUNTY
NO. OF
HOURS
% OF
LTA
DULL
DAYS
ASHFORD (CRONYKERRY
WICKLOW
DUBLIN (GLASNEVIN)
DUBLIN
99
104
ARKLOW (BALLYRICHARD HSE)
WICKLOW
SHANNON AIRPIRT
CLARE
1475.4
1449.2
1576.0
1414.5
1547.5
1111.3
1573.9
1165.5
1246.9
1170.8
1437.0
1381.9
1424.6
980.8
1384.9
1279.1
79
111
50
104
89
115
130
79
103
77
99
99
131
91
103
113
STATION
DUBLIN AIRPORT
DUBLIN
NEWPORT (FURNACE)
MAYO
WATERFORD
DONEGAL
BELMULLET
MAYO
STRAIDE
MAYO
SHERKIN ISLAND
CORK
CASEMENT
DUBLIN
CORK AIRPORT
CORK
KNOCK AIRPORT
MAYO
BALLINCURRIG (PEAFIELD)
CORK
KERRY
109
107
98
111
98
0
95
94
101
100
82
95
0
HIGHEST DAILY
SUNSHINE
(HOURS)
14.4
13.9
15.1
15.4
15.7
12.3
14.7
15.5
14.0
14.7
14.5
15.7
14.8
13.1
13.8
15.4
DATE OF HIGHEST DAILY
SUNSHINE
10
10
10
9
10
3
10
10
8
9
10
10
10
18
10
8
JUN
JUN
JUN
JUN
JUN
JUN
JUN
JUN
JUN
JUN
JUN
JUN
JUN
APR
JUN
JUN
WIND
ANNUAL WIND
Annual mean wind speeds ranged from
6.4 knots (11.8 km/h) at Fermoy (Moore Park),
Co Cork to 15.9 knots (27 km/h) at Mace
Head, Co. Galway, its highest since the station
opened in 2008. From September 2015, the
Met Office UK and Met Éireann introduced a
pilot project providing names for wind storms.
These were implemented from November 1st,
with six named wind storms occurring by the
end of the year.
• Storm Abigail: Thursday November 12th.
HIGHEST GUST AND 10-MINUTE MEAN
The year’s highest 10-minute mean wind
speed was 55 knots (102 km/h) reported at
Sherkin Island, Co Cork on December 30th
during Storm Frank. The year’s highest gust
was 76 knots (141 km/h) at Mace Head, Co
Galway on February 23rd.
NOTES & DEFINITIONS
A ‘day’ refers to the period from 0000 UTC to
0000 UTC.
• Storm Barney: Tuesday November 17th.
• Storm Clodagh: Sunday 29th November.
• Storm Desmond: Friday 4th and Saturday
5th of December.
• Storm Eva: Sunday 23rd December.
• Storm Frank: Tuesday 29th and Wednesday
30th December.
Gust: A short burst of high speed wind is a
gust.
Gale: A gale is a mean wind speed over a
10-minute period of 34 knots or more.
CLIMATE ANNUAL 2015
ANNUAL WIND (
FOR SYNOPTIC STATIONS)
MEAN
WIND
SPEED
SPEED/DIR OF
MAX.10-MIN
MEAN
DATE/TIME OF
MAX.10-MIN
SPEED/DIR
OF MAX.GUST
DATE/TIME OF
MAX.GUST
STATION
COUNTY
CARLOW (OAK PARK)
CARLOW
8.2
45
240
17
NOV
68
230
17
BALLYHAISE
CAVAN
6.8
27
220
15
JAN
48
240
27
230
9
MAR
(KNOTS)
(KNOTS/ °)
MEAN
(KNOTS/ °)
NO.
OF
DAYS WITH
GUSTS
NO.
OF
DAYS
WITH
>33.5
GALES
NOV
58
5
29
NOV
54
SHANNON AIRPORT
CLARE
9.9
50
240
17
NOV
69
240
17
NOV
89
18
CORK AIRPORT
CORK
10.3
39
200
30
DEC
57
200
14
JAN
90
5
FERMOY (MOORE PARK)
CORK
6.4
31
260
17
NOV
56
250
17
NOV
37
ROCHE'S POINT
CORK
12.9
52
200
30
DEC
66
200
30
DEC
120
46
SHERKIN ISLAND
CORK
13.3
55
240
30
DEC
72
230
30
DEC
111
45
FINNER
DONEGAL
11.4
43
230
15
JAN
69
230
15
JAN
120
34
43
330
29
JAN
52
220
15
JAN
70
220
15
JAN
162
75
52
350
20
NOV
41
250
23
FEB
59
200
14
JAN
97
25
41
260
30
MAR
59
250
30
MAR
41
240
17
NOV
59
270
29
NOV
41
230
30
DEC
42
250
1
JAN
58
250
1
FEB
93
17
42
270
17
NOV
MALIN HEAD
CASEMENT
DUBLIN AIRPORT
DONEGAL
DUBLIN
DUBLIN
15.4
10.4
11.4
MACE HEAD
GALWAY
15.9
53
280
17
NOV
76
270
23
FEB
157
72
VALENTIA OBS
KERRY
10.4
39
240
17
NOV
58
230
17
NOV
101
9
58
150
29
DEC
49
240
9
JAN
49
240
10
JAN
49
240
15
JAN
49
250
17
NOV
73
190
23
DEC
131
40
ATHENRY
BELMULLET
MAYO
MAYO
7.8
13
32
270
17
NOV
50
200
9
DEC
50
180
23
DEC
63
CLAREMORRIS
MAYO
8.6
37
270
23
FEB
60
260
23
FEB
75
1
KNOCK AIRPORT
MAYO
9.9
42
300
23
FEB
60
270
28
JAN
98
10
NEWPORT
MAYO
10.4
54
290
23
FEB
74
300
23
FEB
117
17
DUNSANY
MEATH
8.5
34
250
29
NOV
53
240
30
DEC
51
1
MOUNT DILLON
ROSCOMMON
7.4
35
280
23
FEB
51
290
23
FEB
47
1
GURTEEN
TIPPERARY
8.8
40
230
17
NOV
58
240
17
NOV
63
1
MULLINGAR
WESTMEATH
6.6
25
160
29
DEC
44
160
29
DEC
30
44
230
15
JAN
53
190
14
JAN
53
250
17
NOV
JOHNSTOWN CASTLE
WEXFORD
9.3
33
240
17
NOV
73
CLIMATE ANNUAL 2015
WIND
MALIN HEAD
ANNUAL
WIND ROSES
(KNOTS)
BELMULLET
KNOCK AIRPORT
BALLYHAISE
DUBLIN AIRPORT
CLAREMORRIS
MOUNTDILLION
MULLINGAR
CASEMENT
MACE HEAD
DUNSANY (GRANGE)
SHANNON AIRPORT
GURTEEN
CARLOW (OAK PARK)
VALENTIA
CORK AIRPORT
FERMOY (MOORE PARK)
JOHNSTOWN CASTLE
SHERKIN ISLAND
ROCHE’S POINT
wIND ROSE
KEY
CLIMATE ANNUAL 2015
Upper Atmosphere wind and temperature readings are made at Valentia Observatory twice
daily by a radiosonde (a balloon with instruments attached). Shown below are annual
average wind speeds and temperatures at defined pressure levels, 850, 700, 500 and 300 hPa,
corresponding approximately to heights of 1.5, 3, 5 and 10 Km.
VALENTIA UPPER AIR WIND SPEED & TEMPERATURE
300 hPa
500 hPa
700 hPa
850 hPa
Issued by the Climatology and Observations Division of Met Éireann.
This publication and all its contents are copyright of Met Éireann.
Cover photo courtesy of Mr Kieran Cummins.
This report is based on quality controlled data from over 600 climatological stations
and replaces the provisional Annual Weather Summary.
Long-Term Averages (LTAs) and “average” both reference
the period 1981 to 2010, unless otherwise specified.
For more information, telephone Met Éireann on 01-8064 200
or e-mail [email protected].

MONTHLY WEATHER BULLETIN

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