Overview of weather across the UK for previous months, seasons and years
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UK last month
May began very unsettled and unseasonably cold, with frosts in many places; it became less cold after the first week but continued with frequent rain or showers for most areas. The UK experienced a number of deep low pressure systems that resulted in a number of notably windy days. The weather settled down for the final few days of the month, when it also became much warmer.
The provisional UK mean temperature was 9.1 °C, which is 1.3 °C below the 1981-2010 long-term average, making it the coldest May since 1996. Mean maximum temperatures were up to 2 °C below normal in some areas, but mean minimum temperatures were only around 1 °C below average for most places. Nearly all areas had a wet month, with only parts of western Scotland having near or below average rainfall, and many places from eastern Scotland to Wales and south-west England had well over double their usual May rainfall, making it provisionally the UK’s fourth wettest May in a series from 1862, with 171% of average. Sunshine was rather below average for most areas exept Northern Ireland, with 86% of average for the UK overall.
The UK monthly extremes were as follows: A maximum temperature of 25.1 °C was recorded at Kinlochewe (Ross & Cromarty) on the 31st. A minimum temperature of -6.1 °C was recorded at St Harmon (Powys) on the 2nd. In the 24 hours ending at 0900 GMT on the 21st, 103 mm of rain fell at Mickleden (Cumbria). A wind gust of 81 knots (93 mph) was recorded at Needles Old Battery (Isle of Wight) on the 3rd. A snow depth of 1 cm was recorded at Achiltibuie (Ross & Cromarty) on the 5th.
Monthly, seasonal and annual summaries 2021
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Monthly, seasonal and annual summaries 2018
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Multi-century climate series
Central England Temperature (series begins in 1659).
UK Regional Precipitation (series begins in 1766).