UK Met Office marks 50 years since the legendary summer of 1976

Credit: Youtube

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There hasn’t been anything like it in the UK since then. Global cooling had been a live topic before the mid 1970’s, but then the global climate changed (again) and shifted towards warming.
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The summer of 1976 is one of the most remarkable and enduring in UK memory and has become a benchmark against which hot, dry summers are measured, says the Met Office.

The iconic summer is remembered for its prolonged heat and lack of rainfall across much of the UK. From 23 June, a sustained hot spell saw temperatures regularly exceed 30°C widely across England, peaking at 35.9°C in Cheltenham on 3 July.

Many areas also experienced weeks of dry conditions, with parts of southern England seeing little or no rain, contributing to severe drought conditions.

What set 1976 apart was not just the intensity of the heat, but its persistence. A ‘blocking’ high-pressure pattern trapped hot, dry conditions over the UK for weeks, while prolonged dry weather since May 1975 had already depleted soil moisture and water resources, intensifying the event. It remains one of the most significant combined heatwave and drought episodes in the UK’s recorded climate history.

Met Office Senior Climate Information Scientist, Mike Kendon, said: “The summer of 1976 is still talked about because of how unusual it was in both its intensity and duration. Fifty years on, it provides an important historical context for understanding how the UK’s climate can behave and how extreme weather can affect people, infrastructure and the environment.

“In recent years, the absolute extremes of temperatures seen in 1976 have been exceeded multiple times. For example, in today’s warmer climate, temperatures of 36°C have been recorded on multiple occasions, including six days in the past decade, and the UK’s highest record temperature now stands at 40.3°C, recorded at Coningsby in 2022. But the reason 1976 stands out is because of the persistence of the warm, dry, sunny conditions. 1976 is still the UK’s hottest summer on record for average maximum temperatures, the UK’s sunniest summer on record and an exceptionally severe event in terms of lack of rain for a prolonged period extending through the preceding winter and back to summer 1975.”
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Events like 1976 continue to help scientists place more recent extremes into context. As the climate warms, such extremes are expected to become more frequent.

The Met Office uses more than a century of observations, alongside the latest science and technology, to provide trusted information to support communities, businesses and decision-makers across the UK. [Talkshop comment – Latest tech? See our Surface Stations Project posts and pages for, er, more details].

Full article here.