British Isles weather diary

British Isles weather diary

Recent temperature, rainfall and sunshine extremes over the British Isles (Note: figures in parentheses give an indication, from first reports, of the spread of daily max and min temperatures, min daytime temperatures (occasionally), rainfall and sunshine in the 24 hours ending 2100 GMT.)

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British Isles weather, January 2018

A weakening cold front drew rain across the British Isles from the NW during the 29th. Pressure rose behind the front - to pass 1032 mb over much of S England, S wales and S Ireland by late evening) - brining clearer weather with it. After a mild night over England (overnight minimum temperatures of 10-11C in places), showers developed across Scotland, becoming wintry places. It was a blustery day until pressure began to rise. (Heathrow 13.5C, Dalwhinnie 3.0C maximum, Loch Glascarnoch 0.9C minimum, Tyndrum 27.8 mm, Thomastown 6.3 h.)

The 30th saw a widespread air frost before dawn in places as S as SE England, along with some fog patches. Rain affected N Scotland at first. During the day much of Cent and E England was sunny, but frontal rain spread across Ireland and into W Scotland associated with low pressure to the W of Shetland. Another area of rain also affected SW and Cent S England. (Isles of Scilly 11.0C, Pennerley 3.8C maximum, Benson -5.6C minimum, Achnagart 72.0 mm (suspect?), Wellesbourne 6.9 h.)

Outbreaks of rain spread SE'wards during the 31st, with brighter skies following to most districts. The wind turned to a NW'ly direction and there were frequent showers in the N and W. Ahead of the rain it was mild in S England, but temperatures fell behind the (cold front) rainfall. Snow fell over Scotland and N Ireland by dawn, with falls in N England by midday and in the Midlands in the afternoon. There was also some hail and isolated thunder. (Swanage 10.6C, Salsburgh 0.4C maximum, Altnahinch Filters -1.0C minimum, Cassley 21.6 mm, Leeming 6.6 h.)


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Last updated 5 February 2018.