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Weather in Colchester, Essex, UK. Station Records
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Temperature
| Maximum temperature | 33.4 °C | 26/07/2006 |
| Minimum temperature | -7.3 °C | 18/02/2008 |
| Hottest month | 22.0 ºC | July 2006 |
| Coldest month | 4.4 ºC | February 2005 |
Air Frosts
(Data for the latest winter will not be complete until the end of April each year)
| Frosts in a winter | Most | 48 (2005-2006) |
| Least | 27 (2006-2007) | |
| First Frost | Earliest | 21/10 (2007) |
| Latest | 19/11 (2004) | |
| Last Frost | Earliest | 6/4 (2006) |
| Latest | 10/4 (2008) |
Humidity
| Maximum humidity | 96% | 25/08/2007 |
| Minimum humidity | 30% | 30/07/2006 |
Rainfall
| Maximum rain in a day | 4.8 mm | 07/07/2008 |
| Longest period without rain | 12 days, 23 hours, 31 minutes | 02/05/2008 - 15/05/2008 |
| Most rain in a month | 142.6 mm | August 2004 |
| Most rain days in a month | 24 | August 2006, November 2006 |
| Least rain in a month | 0.7 mm | April 2007 |
| Least rain days in a month | 2 | April 2007 |
Barometric Pressure
| Maximum barometric pressure | 1044.0 hPa | 21/12/2006 |
| Minimum barometric pressure | 963.0 hPa | 10/03/2008 |
Sunshine
| Maximum brightness | 133 klux | 25/05/2005 |
| Most sunshine in a day | 16 hr 05 min | 28/06/2006 |
| Sunniest Month | 301 hr 39 min | July 2006 |
| Dullest Month | 60 hr 53 min | January 2006 |
Wind
| Maximum Wind Speed | 47.3 mph | 18/01/2007 |
The elevation of the site is 28 metres and the barometric pressure is corrected to sea level. The weather station was installed on 20/7/2004, the barometric pressure sensor on 18/8/2004 and the ground temperature sensor on 26/2/2005. Norm data is taken from the Colchester readings for temperature and rainfall and the Wattisham readings for sunshine time in the 1971-2000 publication by the Climatological Observers Link. Where duplicate records have been recorded, only the first instance is listed above.
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