Epping Weather Station

Monthly Summary: December 2006 (Daily Readings)

Temperature °C
   Date or compared to 1971-2000 average
Mean Maximum 8.8 +1.7
Mean Minimum 3.8 +1.1
Monthly Mean 6.3 +1.4
Highest Maximum 13.8 4th
Lowest Maximum 0.4 21st
Highest Minimum 10.9 14th
Lowest Minimum -3.4 20th
Lowest Grass Min -4.4 20th
Wind mph
Mean wind speed
6.7
Strongest Gust
44
Date
7th
Dominant Direction
SW
Direction at 0900
N
NE
E
SE
S
SW
W
NW
CALM
No of mornings
1
3
2
1
8
6
9
0
1
Precipitation mm
 Date or compared to 1971-2000 average
Monthly Total
60.7
105%
Wettest Day (09-09)
7.9
6th
Rain Days (>0.2mm)
22
Wet Days (>1mm)
12
Sunshine hours
Monthly Total
57.7
% Average
128
Days with no sun
14
Sunniest day
6.84
Date
17th
Number of days with
Air Frost
6
Ground Frost
7
Snow/sleet falling (0000-2400GMT)
0
>50% snow cover at 0900
0
Fog at 0900 (vis <1000m)
4
Thunder heard
1
Hail <5mm diameter
1
Hail > 5mm diameter
0

 
Miscellaneous Data
Mean Relative Humidity at 0900 (%)
92
Mean Air Pressure at 0900 (mb)
1019.6
Lowest Pressure 983.4
Date
8th
Highest Pressure 1044.6
Date
21st
Hours of air frost
75.9
Mean soil temp °C (20cm depth)
6.6
Greatest snow depth (0900)
0
Date
-
Particular days/events

7th 1100-1130hrs temperature fell from 9.4ºC to 6.0ºC with thunder, hail, 44mph gust and noticeable temporary pressure surge on the barograph trace. This was at the same time as the tornado in north London

19th-22nd Persistent fog

21st Barometer pressure 1044.6mb, likely to be a recent record for Epping

22nd Daytime maximum temperature only -0.6ºC

 

 

Month as a whole
Warmest December since 1994 and 4th warmest on record (since 1979)

 

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