Epping Weather Station

Monthly Summary: April 2005(Daily Readings)

Temperature °C
  Date or compared to 1971-2000 average
Mean Maximum
14·0
+1.8
Mean Minimum
5·6
+1.5
Monthly Mean
9·8
+1.7
Highest Maximum
22·1
30th
Lowest Maximum
6·6
8th
Highest Minimum
11·8
30th
Lowest Minimum
-1·6
9th
Lowest Grass Min
-4·7
9th
Wind mph
Mean wind speed
4·8
Strongest Gust
37
8th
Dominant Direction
S
Direction at 0900
N
NE
E
SE
S
SW
W
NW
CALM
No of mornings
5
1
3
1
7
2
11
0
0
Precipitation mm
Date or compared to 1971-2000 average
Monthly Total
36·5
72·6%
Wettest Day
7·9
24th
Rain Days (>0.2mm)
14
Wet Days (>1mm)
9
Sunshine hours
Monthly Total
148·6
% Average
99
Days with no sun
2
Sunniest day
13·52
Hours
21st
Number of days with
Air Frost
1
Ground Frost
8
Snow/sleet falling (0000-2400GMT)
2
>50% snow cover at 0900
0
Fog at 0900 (vis <1000m)
1
Thunder heard
2
Hail <5mm diameter
1
Hail > 5mm diameter
0

 

Miscellaneous Data
Mean Relative Humidity at 0900 (%)
83·1
Mean Air Pressure at 0900 (mb)
1012·9
Lowest Pressure (mb)
991·5
Date
18th
Highest Pressure (mb)
1029·7
Date
11th
Hours of air frost
8·7
Mean soil temp °C (20cm depth)
9·2
Greatest snow depth (0900)
--
Date
--
Particular days/events

 

A short cold snap from the 7th to the 9th gave snow showers, some with thunder. The northerly winds gusted to 37mph and there was a minimum air temperature of -1·6°C early on the 9th.

 

 

Month as a whole


Another warmer than average April. It is now 14 years (1991) since April was colder than the long term (1971-2000) average

 

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