Epping Weather Station

Monthly Summary: December 2007 (Daily Readings)

Temperature °C
  Date or compared to 1971-2000 average
Mean Maximum
7.7
+0.6
Mean Minimum
2.9
+0.2
Monthly Mean
5.3
+0.4
Highest Maximum
13.8
6th
Lowest Maximum
3.1
21st
Highest Minimum
8.8
28th
Lowest Minimum
-3.0
20th
Lowest Grass Min
-6.7
20th
Wind mph
Mean wind speed
6.0
Strongest Gust
56
Date
7th
Dominant Direction
Direction at 0900
N
NE
E
SE
S
SW
W
NW
CALM
No of mornings
2
2
5
2
8
4
5
1
2
Precipitation mm
Date or compared to 1971-2000 average
Monthly Total
41.7
72.4%
Wettest Day (09-09)
11.4
25th
Rain Days (>0.2mm)
13
Wet Days (>1mm)
9
Sunshine hours
Monthly Total
75.13
% Average
167.0
Days with no sun
8
Sunniest days
6.94
Date
12th & 13th
Number of days with
Air Frost
9
Ground Frost
14
Snow/sleet falling (0000-2400GMT)
0
>50% snow cover at 0900
0
Fog at 0900 (vis <1000m)
3
Thunder heard
0
Hail <5mm diameter
0
Hail > 5mm diameter
0

 

Miscellaneous Data
Mean Relative Humidity at 0900 (%)
86
Mean Air Pressure at 0900 (mb)
1020.2
Lowest Pressure
977.3
Date
9th
Highest Pressure
1040.8
Date
13th
Hours of air frost
42.0
Mean soil temp °C (20cm depth)
5.4
Greatest snow depth (0900)
0
Date
-
Particular days/events

Major rise in pressure from 9th to 13th (977.3mb to 1040.8mb)

 

 

Month as a whole

The last 5 Decembers have all had above average sunshine
8 out of last 11 Decembers warmer than the 1971-2000 long term average

 

 

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