Climate Data and Brief Summary for Autumn 2002

Last updated 4th January 2003

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

SCREEN TEMPERATURES °c
                                        Anomaly*       Date
Mean                        9.8          +0.7
Mean Maximum               12.7          +0.5
Mean Minimum                6.8          +0.8
High Maximum               21.0                        12th September
Low Minimum                -1.9                        19th October
Low Maximum                 5.0               20th Oct/25th November
High Minimum               14.1                        13th September
Low Grass                  -4.0                        19th October
Air Frosts                   3           -4
Ground Frosts                7          -13 
Hours of Frost             10.1

Barometric pressure, 24 hour observations (mbar)
Mean                      1012.0        -1.4		
Maximum                   1033.7                        1st September                               
Minimum                    974.4                       14th November

PRECIPITATION (mm)
Total                      279.7        +53.3                                          
Rain days (0.2mm or more)   53           +3                                            
Wet days (1.0mm or more)    37            0 
Maximum Fall                39.3                        9th September
Rainfall duration (hrs.)   163.6
 
SUNSHINE

Sun Hours                  283.2        +30.9
Maximum day                 13.2                        1st September
Nil Sun Days                20

HUMIDITY %

Mean                        87.7
Dry days (60% or less)      23                                                  

WIND (mph)

24hour mean                  3.6
09.00 mean                   3.6
Maximum gust                60.0                       27th October 
%North                       1.0
%North East                  0.7
%East                        5.7
%South East                 39.3
%South                       7.7
%South West                 10.0
%West                        9.0
%North West                 11.3
%Calm                       15.3
Hours of calm              502.1

MISCELLANEOUS

Days with:

Sleet/Snow                   0           -2            
Snow lying (09.00)           0           -1
Maximum depth (cm)           0.0                          
Total snow depth (cm)        0.0			
Hail                         3           +1
Thunder                      1            0
Fog (09.00)                  8           -1

Brief summary of the month:
Autumn 2002 was the coolest since 2000 despite temperatures being 
above average. It was the sunniest since 1999 but the wettest since 
2000.

All data taken at 220 metres above sea level


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