Climate Data and Brief Summary for Spring 2002

Last updated 4th June 2002

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

SCREEN TEMPERATURES °c
                                        Anomaly*       Date
Mean                        8.7	  +1.1
Mean Maximum               12.5          +1.3
Mean Minimum                4.8          +0.8
High Maximum               22.7                        16th May
Low Minimum                -3.0                         2nd March
Low Maximum                 4.3                        15th March
High Minimum               12.9                        17th May
Low Grass                  -6.9                         2nd March
Air Frosts                   7           -4
Ground Frosts               27           -6 
Hours of Frost             24.0

Barometric pressure, 24 hour observations (mbar)
Mean                      1014.7        +0.1
Maximum                   1033.4                       24th March                               
Minimum                    990.1                       22nd May

PRECIPITATION (mm)
Total                      148.6        -33.4                                           
Rain days (0.2mm or more)   42           -4                                            
Wet days (1.0mm or more)    30           -3
Maximum Fall                14.1                       13th May
Rainfall duration (hrs.)    83.7
 
SUNSHINE

Sun Hours                  404.2        +30.3
Maximum day                 12.3                       11th May
Nil Sun Days                 8

HUMIDITY %

Mean                        81.2
Dry days (60% or less)      46                                                  

WIND (mph)

24hour mean                  4.4
09.00 mean                   4.4
Maximum gust                53.0                      9th March
%North                       1.1
%North East                  5.5
%East                        8.8
%South East                 24.9
%South                       4.9
%South West                 29.7
%West                       12.0
%North West                  7.6
%Calm                        5.5
Hours of calm              397.0

MISCELLANEOUS

Days with:

Sleet/Snow                   3           -4            
Snow lying (09.00)           0           -3
Maximum depth (cm)           0.0                          
Total snow depth (cm)        0.0
Hail                         9           +3
Thunder                      2           -1
Fog (09.00)                  4            0

Brief summary of the month:
Spring 2002 was the warmest since 1999. It was also the driest since 1996 and 
the sunniest since 1995. To sum up, it was a dry, sunny and rather warm Spring.

All data taken at 220 metres above sea level


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