These records are based mainly on digitised data from 1959. Highest daily maximum temperature records marked with an asterisk appear in Britain’s highest temperatures by county and by month, J.D.C. Webb and G.T. Meaden, 1993. Weather 48, 282-291
When compiling these tables, an attempt has been made to verify all records by comparing values with neighbouring stations.
| District | Temperature | Date | Location | |
|---|---|---|---|---|
| Scotland N | 32.2 | °C* | 1 September 1906 | Gordon Castle (Morayshire) |
| Scotland E | 32.9 | °C | 9 August 2003 | Greycrook (Scottish Borders) |
| Scotland W | 32.8 | °C* | 2 July 1908 20 July 1901 |
Dumfries (Dumfries & Galloway) |
| England E & NE | 35.8 | °C | 3 August 1990 | Bourne (Lincolnshire) |
| England NW | 34.6 | °C | 3 August 1990 | Nantwich (Cheshire) |
| Wales N | 35.2 | °C | 2 August 1990 | Hawarden Bridge (Flintshire) |
| Midlands | 37.1 | °C | 3 August 1990 | Cheltenham (Gloucestershire) |
| East Anglia | 37.9 | °C | 10 August 2003 | Aldenham (Hertfordshire) |
| England SW | 35.4 | °C | 3 August 1990 | Saunton Sands (Devon) |
| Wales S | 34.6 | °C | 3 August 1990 19 July 2006 |
Crossway (Gwent) Gogerddan (Ceredigion) |
| England SE & Central S | 38.5 | °C | 10 August 2003 | Faversham (Kent) |
| Northern Ireland | 30.8 | °C | 30 June 1976 12 July 1983 |
Knockarevan (County Fermanagh) Shaw's Bridge, Belfast (County Antrim) |
| District | Temperature | Date | Location | |
|---|---|---|---|---|
| Scotland N | -27.2 | °C | 30 December 1995 | Altnaharra (Highland) |
| Scotland E | -27.2 | °C | 11 February 1895 10 January 1982 |
Braemar (Aberdeenshire) (both dates) |
| Scotland W | -24.8 | °C | 11 January 1982 | Carnwath (South Lanarkshire) |
| England E & NE | -23.3 | °C | 21 January 1881 | Haydon Bridge (Northumberland) |
| England NW | -21.9 | °C | 16 January 1881 | St Michaels-on-Wyre (Lancashire) |
| Wales N | -22.7 | °C | 13 December 1981 | Corwen (Denbighshire) |
| Midlands | -26.1 | °C | 10 January 1982 | Newport (Shropshire) |
| East Anglia | -20.0 | °C | 23 January 1963 | Woburn (Bedfordshire) |
| England SW | -16.7 | °C | 21 January 1940 | Cullompton (Devon) |
| Wales S | -23.3 | °C | 21 January 1940 | Rhayader (Powys) |
| England SE & Central S | -19.5 | °C | 14 January 1982 | Lacock (Wiltshire) |
| Northern Ireland | -18.7 | °C | 24 December 2010 | Castlederg (County Tyrone) |