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The 1808 United Kingdom heat wave was a period of exceptionally high temperatures during July 1808. In the Central England Temperature series, dating back to 1659, at the time it was the 2nd hottest July on record, the hottest since 1783. As of 2022, it is the 9th hottest July on record.[2] The month included some of the highest temperatures ever recorded in the UK. Temperature records from this time are likely dubious as the Stevenson screen was not introduced until the 1860s.[3]
| Areas | United Kingdom |
|---|---|
| Start date | July 1808 |
| End date | July 1808 |
| Peak temp. | 38 °C (100 °F), recorded at London, England on 13 July 1808[1] |
Weather
editJuly 1808 was the second hottest July on record, at the time with an extreme notable heatwave from the 12th to 15 July, peaking on the 13th and 14th. Temperatures above 36 °C (97 °F) were recorded in many areas on the 13th and 14th, with London reaching 38 °C (100 °F)[1] on the 13th, with a possible reading of 41 °C (105 °F).[4]
- Reports from Weather Stations around the United Kingdom
| Town or City | Temperature | Date |
|---|---|---|
| Northampton | 33 °C (91 °F) | 13 July [5] |
| Kingston upon Hull | 34 °C (93 °F) | 13 July [6][7] |
| Suffolk | 37 °C (99 °F) | 13 July [6][7] |
| London | 36 °C (97 °F) | 12 July [6][7] |
When the heatwave was coming to a close on the 15th, there were some very severe thunderstorms. These most severe of the storms affected Dorset, Somerset & Gloucestershire. However, a 59 miles (95 km) swath was also damaged between Bath and Bristol. Reports of hail stones up to 1 foot (300 mm) long were recorded in Somerset, with hailstones of a more general 70 to 100 millimetres (2.8 to 3.9 in) being reported as well. Ball Lightning was also observed in Gloucester, and was noted as destroying one of the pinnacles at the west end of Gloucester Cathedral. It is thought that this is one of the most severe hailstorms in the history of the United Kingdom, along with that of 1697.[4][6][7]
Impacts
editAs a result of the hot temperatures and following thunderstorms, many people lost their lives, especially in the counties of Bedfordshire, Buckinghamshire and Northampton. Animals were also badly affected as a result of the hot weather, with 50 post horses dying as a result on the Great North Road alone. Farmers also struggled. Despite being able to harvest their crops early, other products melted quickly such as butter and honeycomb.[1]
References
edit- ^ a b c Murden, Sarah (July 17, 2018). "The Heatwave of 1808".
- ^ "mean CET ranked coldest to warmest from 1659 to 2022" (dat). www.metoffice.gov.uk. Met Office. Archived from the original on 2011-04-06. Retrieved 6 March 2022.
- ^ "Temperature notes". Met Office. Retrieved 2022-03-06.
- ^ a b "Trevor Harley Home Page". www.trevorharley.com.
- ^ "Llên Natur: Gwefan Natur i Bobl Cymru - Gartref". www.llennatur.cymru.
- ^ a b c d "Bracknell Meteorology - Background Data - 1900-1909". Bracknell Meteorology. Archived from the original on 21 April 2007.
- ^ a b c d "July 1808 - A very hot month". Netweather Community Forums.
- The Times - Simons, P - Killer heatwave that brutalised Britain (13 July 2018)
- Clark, C - The heatwave over England and the great hailstorm in Somerset, July 1808 (29 December 2006)