Monthly Mean Temperature (°C) for May (03xxx stations, 142 sites).

Top 10
London, St James's Park13.64°C
Heathrow13.28°C
Northolt12.83°C
Jersey: Airport12.57°C
Thorney Island12.57°C
Chivenor12.36°C
South Farnborough12.33°C
Herstmonceux, West End12.24°C
Plymouth, Mountbatten12.17°C
Scilly: St Marys Airport12.13°C

Bottom 10
Cairngorm Summit1.91°C
Aonach Mor2.89°C
Cairnwell4.25°C
Bealach Na Ba No 24.34°C
Great Dun Fell No 25.08°C
Glen Ogle6.82°C
Lerwick7.93°C
Fair Isle7.98°C
Baltasound No 28.30°C
Loch Glascarnoch8.50°C

Data courtesy of MetOffice and OGIMET

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