Climate Data and Brief Summary for April 2005

Last updated 9th May 2005

*Anomalies are based on averages for the period 1971-2000

SCREEN TEMPERATURES °c
                                        Anomaly*       Date
Mean                        8.1          +1.0
Mean Maximum               11.8          +1.0
Mean Minimum                4.5          +1.0
High Maximum               18.1                        30th 
Low Minimum                -1.1                        17th
Low Maximum                 5.6                         8th
High Minimum                9.2                        30th
Low Grass                  -4.4                        17th
Air Frosts                   2           -2
Ground Frosts                5           -6
Hours of Frost              9.5

Barometric pressure, 24 hour observations (mbar)
Mean                      1011.4         -2.8
Maximum                   1027.4                       11th                               
Minimum                    991.7                       18th

PRECIPITATION (mm)
Total                       68.2         +12.4                                          
Rain days (0.2mm or more)   21            +7                                            
Wet days (1.0mm or more)    12            +2 
Maximum Fall                11.3                       18th
Rainfall duration (hrs.)    45.4
 
SUNSHINE

Sun Hours                  134.1         +10.7
Maximum day                 11.5                        2nd
Nil Sun Days                 1

HUMIDITY %

Mean                        80.0
Dry days (60% or less)      18                                                  

WIND (mph)

24hour mean                  4.7
09.00 mean                   5.2
Maximum gust                38.0                        6th 
%North                       2
%North East                  7
%East                       15
%South East                 27
%South                       5
%South West                 13
%West                       20
%North West                  8
%Calm                        3
Hours of calm               76.5

MISCELLANEOUS

Days with:

Sleet/Snow                   3            0
Snow lying (09.00)           0           -1
Maximum depth (cm)           0.0   
Total snow depth (cm)        0.0
Hail                         7
Thunder                      1
Fog (09.00)                  0

Brief summary of the month:
April 2005 was another month with temperatures well above average, although not
as warm as April 2004. Rainfall totals were above average with 122%, making it the
wettest since 2003. Sunshine totals were above normal with 109%, the sunniest
since 2003.   


All data taken at 220 metres above sea level


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