Climate Data and Brief Summary for Winter 2004

Last updated 14th March 2004

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

SCREEN TEMPERATURES °c
                                        Anomaly*       Date
Mean                        3.9          +0.5
Mean Maximum                6.4          +0.5
Mean Minimum                1.5          +0.6
High Maximum               13.6                         3rd February
Low Minimum                -6.1                        26th February
Low Maximum                 0.2                        30th December
High Minimum               11.1                         4th February
Low Grass                 -10.0                        29th January
Air Frosts                  34           +1
Ground Frosts               51           -3 
Hours of Frost            289.1

Barometric pressure, 24 hour observations (mbar)
Mean                      1014.0         +1.2
Maximum                   1034.1                        9th February                               
Minimum                    983.1                       13th January

PRECIPITATION (mm)
Total                      292.4        +84.9                                           
Rain days (0.2mm or more)   55           +2                                            
Wet days (1.0mm or more)    38           -1 
Maximum Fall                22.9                       20th December
Rainfall duration (hrs.)   189.8
 
SUNSHINE

Sun Hours                  189.1        +50.7		
Maximum day                  9.1                       20th February
Nil Sun Days                37

HUMIDITY %

Mean                        90.8
Dry days (60% or less)       6                                                  

WIND (mph)

24hour mean                  4.4
09.00 mean                   4.3
Maximum gust                42.0                       31st January 
%North                       5.6
%North East                  1.0
%East                        4.4
%South East                 15.8
%South                       9.8
%South West                 16.5
%West                       19.8
%North West                 21.7
%Calm                        5.4
Hours of calm              212.0

MISCELLANEOUS

Days with:

Sleet/Snow                  15           -3            
Snow lying (09.00)           7           -7
Maximum depth (cm)          10.0                       28th January   
Total snow depth (cm)       14.2
Hail                         9           +5
Thunder                      1            0
Fog (09.00)                  6           -6

Brief summary of the month:
Winter 2004 was the warmest since 2002 making it six mild Winters in 
the last seven years. It was sunny yet again making it seven Winters 
in a row with above average sunshine. It was the sunniest since 2002. 
Rainfall totals were well above average, the wettest since 1995. 
Snowfall was less frequent than last year and amounts were again
mostly small. So to sum up, it was a sunny, mild but wet Winter.

All data taken at 220 metres above sea level


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