Epping Weather Station

Monthly Summary: September 2008 (Daily Readings)

Temperature °C
   Date or compared to 1971-2000 average
Mean Maximum 17.3 -0.6
Mean Minimum 10.7 +0.6
Monthly Mean 14.0 (+0.0)
Highest Maximum 20.6 1st,9th
Lowest Maximum 13.7 30th
Highest Minimum 14.6 11th
Lowest Minimum 6.9 19th
Lowest Grass Min 4.2 28th
Wind mph
Mean wind speed
4.0
Strongest Gust
28
Date
30th
Dominant Direction
SW
Direction at 0900
N
NE
E
SE
S
SW
W
NW
CALM
No of mornings 3 2 7 4 3 2 8 1 0
Precipitation mm
 Date or compared to 1971-2000 average
Monthly Total 57.5 88.7%
Wettest Day 17.0 5th
Rain Days (>0.2mm) 14
Wet Days (>1mm) 9
Sunshine hours
Monthly Total
133.5
% Average
93.4
Days with no sun
2
Sunniest day
10.97
Date
26th
Number of days with
Air Frost
0
Ground Frost
0
Snow/sleet falling (0000-2400GMT)
0
>50% snow cover at 0900
0
Fog at 0900 (vis <1000m)
1
Thunder heard
0
Hail <5mm diameter
0
Hail > 5mm diameter
0

 
Miscellaneous Data
Mean Relative Humidity at 0900 (%) 84.8
Mean Air Pressure at 0900 (mb) 1017.2
Lowest Pressure 986.8
Date
 5th
Highest Pressure 1036.5
Date
 26th
Hours of air frost
0
Mean soil temp °C (20cm depth)
13.8
Greatest snow depth (0900)
n/a
Date
Particular days/events

5th. 17.0mm rain, wettest September day since 9/9/2002
27th. Fog at 0900

 

 

Month as a whole

Lowest overall mean temperature since 2001
Lowest mean maximum temperature since 2001
-ve mean max and +ve mean min cancelled each other out

 

 

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The data on this website may be freely used for personal and/or academic purposes only - please acknowledge source (added January 2008)

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