Climate and climate change

Climate summaries

Timing of summaries and statistics

Those interested in climate change and predictions of future climates should also visit the Climate Change pages.

UK last month

September 2020

September began with a ridge of high pressure, but westerlies dominated from the 2nd until the 12th bringing areas of rain interspersed with brighter showery weather, though high pressure increasingly influenced the south at times.  It turned hot in places, especially south-east England, around mid-month, and the 16th to 21st was settled with high pressure and plenty of warm sunshine for most parts of the UK.  The weather turned much cooler and more unsettled from the 22nd, and it was very wet and windy in Norfolk on the 25th.  With clear skies and slackening northerly winds further west from the 25th to 27th, frost developed overnight in some places.

The provisional UK mean temperature was 12.9 °C, which is 0.2 °C above the 1981-2010 long-term average.  Mean maximum temperatures were mostly up to 1 °C above average, but nearer 1.5 °C above average in parts of south-east England.  Mean minimum temperatures were mostly up to 0.5 °C below average.  For most of the UK it was a dry sunny month, with 77% of average rainfall and 117% of average sunshine, but rainfall was above average in Norfolk and in parts of western Scotland.

The UK monthly extremes were as follows:  A maximum temperature of 31.3 °C was recorded at Frittenden (Kent) on the 15th.  Minimum temperatures of -5.0 °C were recorded at Altnaharra (Sutherland) on the 24th and at Braemar (Aberdeenshire) on the 27th.  In the 24 hours to 0900 GMT on the 13th, 88.4 mm of rain fell at Glen Nevis (Inverness-shire).  Wind gusts of 58 knots (67 mph) were observed at Weybourne (Norfolk) and Donna Nook (Lincolnshire) on the 25th.

Regional values for September 2020

Monthly, seasonal and annual summaries 2020

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Winter | Spring | Summer

Monthly, seasonal and annual summaries 2019

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Annual

Monthly, seasonal and annual summaries 2018

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Winter | Spring | Summer | Autumn

Annual

Historical reports

We produce an annual State of the UK Climate report

Historical climate and weather reports are available from the digital library and archives

Maps, charts and Data

Data tables of UK and regional monthly series 

Data tables of monthly station series 

UK maps of monthly data

Temperature, rainfall and sunshine time series charts

Temperature, rainfall and sunshine anomaly charts

Multi-century climate series

Central England Temperature (series begins in 1659).

UK Regional Precipitation (series begins in 1766).