Epping Weather Station

Monthly Summary: September 2011 (Daily Readings)

Temperature °C
   Date or compared to 1981-2010 average
Mean Maximum
20.3
+1.9
Mean Minimum
12.1
+1.5
Monthly Mean
16.2
+1.7
Highest Maximum
27.7
30th
Lowest Maximum
15.9
18th
Highest Minimum
16.4
10th
Lowest Minimum
6.9
18th
Lowest Grass Min
4.9
19th
Wind mph
Mean wind speed
5.0
Strongest Gust
42
Date
12th
Dominant Direction
SW
Direction at 0900
N
NE
E
SE
S
SW
W
NW
CALM
No of mornings
0
0
6
1
3
13
6
0
1
Precipitation mm
 Date or compared to 1981-2010 average
Monthly Total
20.1
33.0%
Wettest Day
4.4mm
4th
Rain Days (>0.2mm)
11
Wet Days (>1mm)
6
Sunshine hours
Monthly Total
180.29
% Average
106.8
Days with no sun
1
Sunniest day
11.60
Date
2nd
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 (%) 87.5
Mean Air Pressure at 0900 (mb) 1013.2
Lowest Pressure 999.5
Date
 12th
Highest Pressure 1029.2
Date
 27th
Hours of air frost
0
Mean soil temp °C (20cm depth)
14.2
Greatest snow depth (0900)
n/a
Date
-
Particular days/events
4th With 4.4mm of rain this was the wettest day of the month, the lowest such value for September on record
30th Tmax of 27.7º, the third (equal) warmest September day and easily the latest date for such warmth
The last 3 days of the month saw unbroken sunshine and maximum temperatures of 23.9º, 25.7º and 27.7º

 

Month as a whole
Driest September since 1997 and fourth driest on record
Warmest September since 2006 and second (equal) warmest on record
Sunniest September since 2006

 

NavBar

Home    Site Map The Weather Station 2003
Weather Records		   2004
Weather Records		 2005
Weather Records		 2006
Weather Records		 2007
Weather Records		 2008
Weather Records		 2009
Weather Records		 2010
Weather Records		 2011
Weather Records		 1979-2011 Temperature 1979-2011 Rainfall 1979-2002 Daily Records Useful Links Weather Diary Extremes
The data on this website may be freely used for personal and/or academic purposes only - please acknowledge source in publication
(amended January 2009)

Top