September continues run of heat months

The primary 9 months of this 12 months have provisionally been the warmest on report for the UK in a sequence which fits again to 1884.

September continued this 12 months’s run of each month to date being hotter than common in line with imply temperature, with 13.4°C sitting at 0.5°C greater than the long-term common for the month.  

Mixed, the primary 9 months of 2022 have been hotter than the identical interval in every other 12 months in a sequence which fits again to 1884. The earlier report for the January-September interval was 2014, which went on to be the UK’s warmest 12 months on report.

Dr Mark McCarthy of the Nationwide Local weather Info Centre stated: “The beginning of September continued the summer time’s theme of above common temperatures with excessive strain dominating. Because the month has progressed, an Atlantic affect has introduced extra unsettled climate, with some northerly winds in latest days bringing temperatures additional down. 

“Though 2022 is on observe to be one of many warmest years on report if the hotter than common circumstances persist, we are able to’t rule out a interval of beneath common temperatures throughout the coming months which might deliver it beneath 2014’s imply temperature for the calendar 12 months.” 

Close to-average rain this month

Late rain in September boosted totals to above common for some areas throughout the UK, though not sufficient to deal with the dry 12 months to date.  

A mean of 101.3mm of rain fell throughout the UK in September, which is 11% greater than common. It was the same story throughout the UK, with Scotland seeing 9% extra rain than common, England 10% and Wales 2%. Nonetheless, Northern Eire had 58% extra rain than its common for the month, with a complete of 138.7mm falling.  

Regardless of near-average rain for many in September, the primary 9 months of the 12 months have nonetheless been considerably dry, particularly in areas to the south and east. Provisionally, rainfall from January-September 2022 within the UK has been 639mm. This makes the primary 9 months of the 12 months the driest since 2003 (595mm).  

For England, January-September 2022 has seen 424mm of rain, which is the ninth driest for the interval and the driest since 1959 (400mm). East Anglia has been notably dry, with 267mm of rain to date this 12 months. That is the third driest on report, with solely 1921 (241mm) and 1929 (251mm) drier for a similar interval.  

Mark McCarthy added: “September’s near-average rainfall has finished little to offset the rainfall deficit constructed up over the 12 months to date for some areas of the UK, particularly within the south and east. 1976, which has lengthy been used because the yardstick for warm and dry climate, had an exceptionally moist September, that means it not threatens the dry information at this level within the 12 months.  

“The affect of Atlantic climate techniques from the west has introduced with it some rain, with the late month rainfall managing to tip many areas of the UK to totals barely above common for the month of September.” 

Boring for many

Sunshine hours have been in comparatively brief provide for some, though not sufficient to bother any information. The UK was 8% duller than common with 117.3 hours of sunshine. Wales was notably boring, with 25% fewer sunshine hours than common at 97.5 hours. Northern Eire, regardless of seeing greater than its justifiable share of rain, had 4% extra sunshine than common with 117.8 hours.