Epping Weather Station

Monthly Summary: January 2003 (Daily Readings)

Temperature °C
  Date or compared to 1971-2000 average
Mean Maximum
6.9
+0.6
Mean Minimum
2.0
+0.4
Monthly Mean
4.5
+0.4
Highest Maximum
15.6
27th
Lowest Maximum
0.4
8th
Highest Minimum
8.2
15th
Lowest Minimum
-4.0
12th
Lowest Grass Min
-5.6
8th, 9th, 12th ,31st
Wind mph
Mean wind speed
5.8
Strongest Gust
37
28th
Dominant Direction
W
Direction at 0900
N
NE
E
SE
S
SW
W
NW
CALM
No of mornings
6
2
4
0
2
4
13
0
0
Precipitation mm
Date or compared to 1971-2000 average
Monthly Total 77.1
124%
Wettest Day 16.3
1st
Rain Days (>0.2mm)
18
Wet Days (>1mm)
10
Sunshine hours
Monthly Total 81.8 % Average
165
Days with no sun
6
Sunniest day
9th
Hours
7.17
Number of days with
Air Frost
11
Ground Frost
12
Snow/sleet falling (0000-2400GMT)
6
>50% snow cover at 0900
3
   
Fog at 0900 (vis <1000m)
0
Thunder heard
0
Hail <5mm diameter
0
Hail > 5mm diameter
0

 

Miscellaneous Data
Mean Relative Humidity at 0900 (%)
84
Mean Air Pressure at 0900 (mb)
1013.8
Lowest Pressure 978 Date
2nd
Highest Pressure 1036 Date
11th,12th
Hours of air frost
132.3
Mean soil temp °C (20cm depth)
4.4
Greatest snow depth (0900) 8cm Date 31st
Particular days/events
The heavy snow in the afternoon and evening of Thursday 30th was accompanied by winds gusting to 32mph, resulting in drifts to 75cm. Drifting snow is uncommon here and last occurred on this scale in February 1991. Much disruption, due to ice, on the local motorway (M11) on the 30th/31st with some vehicles held up for over 12 hours.

 

Month as a whole

A rather mild and wet month despite some colder weather with snow. One notable feature was that sunshine hours were much higher than normal (165%). the maximum temperature of 15.6°C on the 27th was the highest for January since records began here in 1979. We have to go back to December 2001 for any month that was colder than the 1971-2000 average.

 

 

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