Epping Weather Station

Monthly Summary: September 2007 (Daily Readings)

Temperature °C
  Date or compared to 1971-2000 average
Mean Maximum
18.8
+0.9
Mean Minimum
10.7
+0.6
Monthly Mean
14.7
+0.7
Highest Maximum
23.9
5th
Lowest Maximum
11.1
26th
Highest Minimum
14.9
7th
Lowest Minimum
5.1
30th
Lowest Grass Min
3.3
30th
Wind mph
Mean wind speed
4.7
Strongest Gust
33
Date
24th
Dominant Direction
N
Direction at 0900
N
NE
E
SE
S
SW
W
NW
CALM
No of mornings
10
0
1
0
3
5
8
3
0
Precipitation mm
Date or compared to 1971-2000 average
Monthly Total
25.5
39.4%
Wettest Day
7.6
23rd
Rain Days (>0.2mm)
10
Wet Days (>1mm)
6
Sunshine hours
Monthly Total
173.5hrs
% Average
121.3%
Days with no sun
1
Sunniest day
12.01
Date
11th
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
0
Hail <5mm diameter
0
Hail > 5mm diameter
0

 

Miscellaneous Data
Mean Relative Humidity at 0900 (%)
85
Mean Air Pressure at 0900 (mb)
1021.6
Lowest Pressure 1003.0
Date
24th
Highest Pressure 1033.1
Date
6th
Hours of air frost
0
Mean soil temp °C (20cm depth)
14.6
Greatest snow depth (0900)
n/a
Date
Particular days/events


24th
Cold front at 0700GMT, wind gust 33mph. Temperature fell from 16° to 13° in 15minutes and to 11.5° by 0830GMT
26th Maximum temperature of 11.1° is lowest maximum for September since 15/9/1994

 

 

Month as a whole


Coldest September since 2001

 

 

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