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Yorkshire) Highest 155-minute total 169 14 August 1975 Hampstead (Greater London) Highest 180-minute total 178 7 October 1960 Horncastle (Lincolnshire) * Approximate value. # Reservations about Walshaw value, Hewenden value is next highest accepted value. Sunshine Sunshine hours Country Hours Date

August 1967 Highest 120-minute total: 155 mm Hewenden Reservoir (Yorkshire) 11 June 1956 Highest 180-minute total: 178 mm Horncastle (Lincolnshire) 7 October 1960 Highest 24-hour total: 341.4 mm Honister Pass (Cumbria) Table 19. Extreme rainfall events across the United Kingdom. 1800 GMT 4th to 1800 GMT