Epping Weather Station

Monthly Summary: January 2010 (Daily Readings)

 

Temperature °C
  Date or compared to 1971-2000 average
Mean Maximum 3.2
-3.1
Mean Minimum -0.7
-2.3
Monthly Mean 1.2
-2.8
Highest Maximum 8.2
17th
Lowest Maximum -1.1
8th
Highest Minimum 5.7
19th
Lowest Minimum -6.9
7th
Lowest Grass Min -9.4
7th
Wind mph
Mean wind speed
4.6
Strongest Gust
31
Date
29th
Dominant Direction
NE
Direction at 0900
N
NE
E
SE
S
SW
W
NW
CALM
No of mornings
7
6
5
3
0
2
6
2
0
Precipitation mm
Date or compared to 1971-2000 average
Monthly Total
55.4
88.8%
Wettest Day (09-09)
10.3
16th
Rain Days (>0.2mm)
16
Wet Days (>1mm)
12
Sunshine hours
Monthly Total
58.21
% Average
110.9%
Days with no sun
14
Sunniest day
8.46
Date
30th
Number of days with
Air Frost
18
Ground Frost
20
Snow/sleet falling (0000-2400GMT)
13
>50% snow cover at 0900
12
Fog at 0900 (vis <1000m)
3
Thunder heard
0
Hail <5mm diameter
1
Hail > 5mm diameter
0

 

Miscellaneous Data
Mean Relative Humidity at 0900 (%)
87.3
Mean Air Pressure at 0900 (mb)
1014.9
Lowest Pressure
989.6mb
Date
29th
Highest Pressure
1041.7mb
Date
26th
Hours of air frost
277.8
Mean soil temp °C (20cm depth)
2.0
Greatest snow depth (0900)
13cm
Date
7th
Particular days/events

3 Ice Days (Tmax < 0.0ºC) 6th,7th and 8th January
13 days of snow falling
12 days >50% snow cover at 0900hrs
10 consecutive days with snow cover at 0900 - from 6th-15th January
16cm level snow at 1700hrs on 7th January
Big fall in air pressure at end of month from 1041.7mb at 2020hrs on 26th to 989.0mb at 0740hrs on 29th

 

Month as a whole

An exceptional month

Coldest January since 1987 and fourth coldest on record here (since 1979)
Most days of snowfall and 0900hrs snow cover since January 1985
Deepest January snow since 1982
Lowest high maximum temperature since January 1979

 

 

 

 

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The data on this website may be freely used for personal and/or academic purposes only - please acknowledge source in publication
(amended January 2009)

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