Epping Weather Station

Monthly Summary: September 2010 (Daily Readings)

Temperature °C
   Date or compared to 1971-2000 average
Mean Maximum
18.0
+0.1
Mean Minimum
11.0
+0.9
Monthly Mean
14.5
+0.5
Highest Maximum
23.1
22nd
Lowest Maximum
12.2
26th
Highest Minimum
15.7
11th
Lowest Minimum
5.2
25th
Lowest Grass Min
4.2
25th
Wind mph
Mean wind speed
4.5
Strongest Gust
32
Date
11th
Dominant Direction
SW
Direction at 0900
N
NE
E
SE
S
SW
W
NW
CALM
No of mornings
3
2
6
0
6
4
5
4
0
Precipitation mm
 Date or compared to 1971-2000 average
Monthly Total
51.9
80.1%
Wettest Day
12.1
6th
Rain Days (>0.2mm)
17
Wet Days (>1mm)
9
Sunshine hours
Monthly Total
138.65
% Average
97.0
Days with no sun
3
Sunniest day
12.91
Date
1st
Number of days with
Air Frost
0
Ground Frost
0
Snow/sleet falling (0000-2400GMT)
0
>50% snow cover at 0900
0
Fog at 0900 (vis <1000m)
0
Thunder heard
1
Hail <5mm diameter
0
Hail > 5mm diameter
0

 
Miscellaneous Data
Mean Relative Humidity at 0900 (%)
85.0
Mean Air Pressure at 0900 (mb)
1014.8
Lowest Pressure 999.8
Date
7th
Highest Pressure 1026.5
Date
13th
Hours of air frost
0
Mean soil temp °C (20cm depth)
13.7
Greatest snow depth (0900)
n/a
Date
Particular days/events

1st-3rd Sunny start to month with 34.85hrs sunshine
1st-6th Dry
6th Thunder heard at 1430h
22nd Maximum temperature of 23.1º and 10.5 hrs sunshine, a very pleasant day
26th-29th Only 0.15hrs sunshine recorded

 

Month as a whole

Second dullest September on sunshine record which started here in 2002
2010 total rainfall to 3nd of September is 478.0mm (100%)

 

 

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(amended January 2009)

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