May 2021

2021

🌡️ Temperature

In the UK, May 2021 was cold. ❄️

  • The average temperature in May 2021 was 10.1°C.
  • That's 1.1°C colder than the average of 11.2°C.
  • This puts it in the 16th percentile for heat, as the 58th coldest May on record.
Distribution of average May temperatures (1659 - 2021)
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The hottest May ever was in 1833, when it averaged 15.1°C, and the coldest year was 1698 at 8.5°C.


🌧️ Rainfall

In the UK, May 2021 was very wet. 🌧️

  • The total rainfall in May 2021 was 122.7mm.
  • That's 58.7mm wetter than the average of 64mm.
  • This puts it in the 97th percentile for rainfall, as the 7th wettest May on record.
Distribution of total May rainfall (1769 - 2021)
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The wettest May ever was in 1773, when rainfall totalled 151.8mm, and the driest year was 1844 at 7.9mm.


☀️ Sunlight

In the UK, May 2021 was cloudy. ☁️

  • In May 2021 there were160.4 hours of sunshine.
  • That's 21.4 hours less sunshine than the average of 181.8 hours.
  • This puts it in the 22nd percentile for sunshine, as the 23rd least sunny May on record.
Distribution of May sunshine hours in (1920 - 2022)
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The sunniest May ever was in 2020, when there were 266.9 hours of sunshine, and the least sunny year was 2022 with 0 hours of sunshine.