<Tr> <Td> Lowest (Wales) </Td> <Td> - 23.3 ° C </Td> <Td> - 9.9 ° F </Td> <Td> Rhayader, Powys </Td> <Td> 21 January 1940 </Td> </Tr> <Tr> <Td> Lowest (Northern Ireland) </Td> <Td> - 18.7 ° C </Td> <Td> - 1.6 ° F </Td> <Td> Castlederg, County Tyrone </Td> <Td> 24 December 2010 </Td> </Tr> <Table> <Tr> <Th> Duration </Th> <Th> Level </Th> <Th> Location </Th> <Th> Date </Th> </Tr> <Tr> <Td> Highest 5 - min total </Td> <Td> Approx. 32 mm </Td> <Td> Preston, Lancashire </Td> <Td> 10 August 1893 </Td> </Tr> <Tr> <Td> Highest 30 - min total </Td> <Td> 80 mm </Td> <Td> Eskdalemuir, Dumfries and Galloway </Td> <Td> 26 June 1953 </Td> </Tr> <Tr> <Td> Highest 60 - min total </Td> <Td> 92 mm </Td> <Td> Maidenhead, Berkshire </Td> <Td> 12 July 1901 </Td> </Tr> <Tr> <Td> Highest 90 - min total </Td> <Td> 117 mm </Td> <Td> Dunsop Valley, Lancashire </Td> <Td> 8 August 1967 </Td> </Tr> <Tr> <Td> Highest 120 - min total </Td> <Td> 155 mm </Td> <Td> Hewenden Reservoir, West Yorkshire </Td> <Td> 11 June 1956 </Td> </Tr> <Tr> <Td> Highest 155 - min total </Td> <Td> 169 mm </Td> <Td> Hampstead, London </Td> <Td> 14 August 1975 </Td> </Tr> <Tr> <Td> Highest 180 - min total </Td> <Td> 178 mm </Td> <Td> Horncastle, Lincolnshire </Td> <Td> 7 October 1960 </Td> </Tr> <Tr> <Td> Highest 24 - hour total (1800 - 1800) </Td> <Td> 341.4 mm </Td> <Td> Honister Pass, Cumbria </Td> <Td> 5 December 2015 </Td> </Tr> <Tr> <Td> Highest 24 - hour total (0900 - 0900) </Td> <Td> 279 mm </Td> <Td> Martinstown, Dorset </Td> <Td> 18 July 1955 </Td> </Tr> <Tr> <Td> Highest 48 - hour total (0900 - 0900) </Td> <Td> 405 mm </Td> <Td> Thirlmere, Cumbria </Td> <Td> 4 to 5 December 2015 </Td> </Tr> <Tr> <Td> Highest 72 - hour total (0900 - 0900) </Td> <Td> 456.4 mm </Td> <Td> Seathwaite, Cumbria </Td> <Td> 17 to 19 November 2009 </Td> </Tr> <Tr> <Td> Highest 96 - hour total (0900 - 0900) </Td> <Td> 495 mm </Td> <Td> Seathwaite, Cumbria </Td> <Td> 16 to 19 November 2009 </Td> </Tr> <Tr> <Td> Highest Monthly Total </Td> <Td> 1396.4 mm </Td> <Td> Crib Goch, Snowdon </Td> <Td> 1 to 31 December 2015 </Td> </Tr> </Table> <Tr> <Th> Duration </Th> <Th> Level </Th> <Th> Location </Th> <Th> Date </Th> </Tr>

What is the highest 24 hour rainfall to be recorded in the uk