Epping Weather Station

Monthly Summary: May 2013(Daily Readings)

Temperature °C
   Date or compared to 1981-2010 average
Mean Maximum
16.0
-0.9
Mean Minimum
7.0
-0.7
Monthly Mean
11.5
-0.8
Highest Maximum
22.9
6th
Lowest Maximum
9.4
24th
Highest Minimum
10.5
21st
Lowest Minimum
1.9
24th
Lowest Grass Min
-1.3
2nd
Wind mph
Mean wind speed
5.3
Strongest Gust
34
13th
Dominant Direction
N
 
N
NE
E
SE
S
SW
W
NW
CALM
No of mornings
8
3
3
0
5
4
7
1
0
Precipitation mm
 Date or compared to 1981-2010 av
Monthly Total
49.5
89.6%
Wettest Day
9.9
14th
Rain Days (>0.2mm)
13
Wet Days (>1mm)
9
Sunshine hours
Monthly Total
175.66
% Average
93.9%
Days with no sun
3
Sunniest day
26th
Hours
15.44
Number of days with
Air Frost
0
Ground Frost
3
Snow/sleet falling (0000-2400GMT)
1
>50% snow cover at 0900
0
Fog at 0900 (vis <1000m)
0
Thunder heard
2
Hail <5mm diameter
1
Hail > 5mm diameter
0

 
Miscellaneous Data
Mean Relative Humidity at 0900 (%) 75.8
Mean Air Pressure at 0900 (mb) 1011.4
Lowest Pressure (mb) 986.8 Date 15th
Highest Pressure (mb) 1025.8 Date 1st
Hours of air frost
0
Mean soil temp °C (20cm depth)
12.4
Greatest snow depth (0900)
--
Date
--
Particular days/events

23rd - cold front at 1540 GMT. The temperature fell from 10.3º to 5.3º at 1640 GMT, accompanied by heavy showers.

 

Month as a whole

The lowest mean maximum temperature for May since 1996.

The last 9 months (back to Sept 2012) have all been colder than the 1981-2010 long term average.

The last 6 months (back to December 2012) have all been duller than the long term average.

 

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(amended January 2009)

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