Epping Weather Station

Monthly Summary: December 2005 (Daily Readings)

Temperature °C
  Date or compared to 1971-2000 average
Mean Maximum
6.7
-0.4
Mean Minimum
1.5
-1.2
Monthly Mean
4.1
-0.8
Highest Maximum
10.6
16th
Lowest Maximum
-0.2
28th
Highest Minimum
6.9
23rd
Lowest Minimum
-3.8
18th
Lowest Grass Min
-5.0
18th
Wind mph
Mean wind speed
4.4
Strongest Gust
42
Date
16th
Dominant Direction
N
Direction at 0900
N
NE
E
SE
S
SW
W
NW
CALM
No of mornings
10
1
0
1
4
2
11
1
1
Precipitation mm
Date or compared to 1971-2000 average
Monthly Total
29.1
51%
Wettest Day (09-09)
10.8
30th
Rain Days (>0.2mm)
16
Wet Days (>1mm)
5
Sunshine hours
Monthly Total
73.6
% Average
164%
Days with no sun
5
Sunniest day
6.4
Date
19th
Number of days with
Air Frost
10
Ground Frost
11
Snow/sleet falling (0000-2400GMT)
3
>50% snow cover at 0900
4
Fog at 0900 (vis <1000m)
3
Thunder heard
0
Hail <5mm diameter
0
Hail > 5mm diameter
0

 

Miscellaneous Data
Mean Relative Humidity at 0900 (%)
93%
Mean Air Pressure at 0900 (mb)
1017.4
Lowest Pressure 978.5
Date
2nd
Highest Pressure 1040.7
Date
10th & 12th
Hours of air frost
90.4
Mean soil temp °C (20cm depth)
4.4
Greatest snow depth (0900)
3cm
Date
28th and 30th
Particular days/events

11th Pall of smoke to SW from oil depot explosion at Hemel Hempstead approx 25miles to west
27th-30th cold spell with lying snow, maximum depth 3cm
28th the 24hour 09-09 maximum temperature was -0.2° making this the first ice day since December 2001
29th daytime maximum temperature only -0.7°
30th moderate continuous snow from 06-09 followed by snow grain/ice pellets which eventually gave wayto a short period of freezing rain before turning to rain in the late morning

 

 

 

Month as a whole
6th coldest December since records began here in 1979 and coldest since 2001
8th driest December on record here and driest since 2001
Sunniest December since sunshine first recorded here in 2002

 

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