Weather in Colchester, Essex, UK

Weather in Colchester, Essex, UK.

Station Records

Temperature

Maximum temperature	33.4 °C	26/07/2006
Minimum temperature	-11.7 °C	20/12/2010
Hottest month	22.0 ºC	July 2006
Coldest month	0.3 ºC	December 2010
Average annual temperature	11.1 ºC
Hottest year	11.9 ºC	2006, 2011
Coldest year	9.6 ºC	2010

Air Frosts

(Data for the latest winter will not be complete until the end of April each year)

Frosts in a winter	Average	43
	Most	57 (2008-2009)
	Least	27 (2006-2007)
First Frost	Earliest	21/10 (2007)
First Frost	Latest	1/12 (2009)
Last Frost	Earliest	12/3 (2010)
Last Frost	Latest	10/4 (2008)

Rainfall

Average annual rainfall	620 mm
Average rain days per year	175
Most rain in a month	142.6 mm	August 2004
Most rain days in a month	25	November 2008, December 2009
Least rain in a month	0.7 mm	April 2007
Least rain days in a month	2	April 2007

Barometric Pressure

Average barometric pressure	1014 hPa
Maximum barometric pressure	1044 hPa	21/12/2006
Minimum barometric pressure	963 hPa	10/03/2008

Sunshine

Average annual sunshine	1824 hours
Most sunshine in a day	16 hr 05 min	28/06/2006
Sunniest Month	301 hr 39 min	July 2006
Dullest Month	60 hr 43 min	November 2008

Wind

Average wind speed	6.5 mph
Maximum wind speed	47.3 mph	18/01/2007

The elevation of the site is 48m and the barometric pressure is corrected to sea level. The weather station was installed in July 2004 but was relocated approximately 3km during September 2009, still within the Myland area of Colchester. Sunshine data was unavailable from September 2009 to August 2011 and was not used in the averages. From January 2012, norm data has been taken from the Colchester readings for temperature and rainfall and the Wattisham readings for sunshine time in the 1981-2010 publication by the Climatological Observers Link. Prior to that the 1971-2000 data was used.

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