Climate Data and Brief Summary for July 2004

Last updated 3rd August 2004

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

SCREEN TEMPERATURES °c
                                        Anomaly*       Date
Mean                       14.4          -1.0
Mean Maximum               18.3          -1.1
Mean Minimum               10.5          -0.8
High Maximum               24.5                        29th
Low Minimum                 6.0                         6th
Low Maximum                13.2                         8th
High Minimum               15.0                        21st
Low Grass                   3.9                         6th
Air Frosts                   0            0
Ground Frosts                0            0
Hours of Frost             00.0

Barometric pressure, 24 hour observations (mbar)
Mean                      1014.3          -2.0
Maximum                   1023.9                       24th                               
Minimum                   1005.0                        2nd

PRECIPITATION (mm)
Total                       64.3         +9.0                                          
Rain days (0.2mm or more)   20           +6                                            
Wet days (1.0mm or more)    12           +1 
Maximum Fall                13.9                        4th
Rainfall duration (hrs.)    39.4
 
SUNSHINE

Sun Hours                  134.8        -18.7
Maximum day                 12.5                        6th
Nil Sun Days                 2

HUMIDITY %

Mean                        82.5
Dry days (60% or less)      17                                                  

WIND (mph)

24hour mean                  3.2
09.00 mean                   4.0
Maximum gust                29.0                       20th 
%North                       5
%North East                  0
%East                        0
%South East                 10
%South                      13
%South West                 21
%West                       19
%North West                 32
%Calm                        0
Hours of calm              106.0

MISCELLANEOUS

Days with:

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

Brief summary of the month:
July 2004 was the coolest since 2000 with temperatures a degree below average, 
we have to go back to December 2003 since the last negative anomaly of any month
and back to October 2003 since an anomaly this large, in fact only 3 of the 
last 17 months have recorded temperatures below average. Rainfall totals 
were above average with 116%, though it was the driest since 2001. Sunshine 
totals were well below average with just 82%, making it the dullest since 2002.
To sum up, a cool, dull and rather wet July!


All data taken at 220 metres above sea level


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