Climate Data and Brief Summary for April 2004

Last updated 9th May 2004

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

SCREEN TEMPERATURES °c
                                        Anomaly*       Date
Mean                        8.7          +1.6
Mean Maximum               12.4          +1.6
Mean Minimum                5.0          +1.5
High Maximum               20.6                        25th 
Low Minimum                -1.2                         9th
Low Maximum                 7.2                         6th
High Minimum               10.6                        26th
Low Grass                  -3.9                         9th
Air Frosts                   1           -3
Ground Frosts                6           -5
Hours of Frost              7.0

Barometric pressure, 24 hour observations (mbar)
Mean                      1010.9         -3.3
Maximum                   1025.7                       24th                               
Minimum                    979.4                       18th

PRECIPITATION (mm)
Total                       92.9         +37.1                                          
Rain days (0.2mm or more)   20            +6                                            
Wet days (1.0mm or more)    17            +7 
Maximum Fall                16.6                       16th
Rainfall duration (hrs.)    45.8
 
SUNSHINE

Sun Hours                  103.4         -20.0
Maximum day                 11.1                       23rd
Nil Sun Days                 4

HUMIDITY %

Mean                        83.8
Dry days (60% or less)      14                                                  

WIND (mph)

24hour mean                  4.0
09.00 mean                   4.2
Maximum gust                36.0                        5th 
%North                       7
%North East                  3
%East                        3
%South East                 13
%South                      12
%South West                 13
%West                       22
%North West                 23
%Calm                        4
Hours of calm               82.0

MISCELLANEOUS

Days with:

Sleet/Snow                   1           -2
Snow lying (09.00)           0           -1
Maximum depth (cm)           0.0   
Total snow depth (cm)        0.0
Hail                         5
Thunder                      0
Fog (09.00)                  0

Brief summary of the month:
April 2004 was another month with temperatures well above average, although not
as warm as April 2003. Rainfall totals were also well above average with 166%, 
making this the wettest since 2001. Sunshine totals were below normal with just
84%, the dullest since 2001. To sum up, it was a wet, rather dull but rather 
warm month.  


All data taken at 220 metres above sea level


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