September 2021
🌡️ Temperature
In the UK, September 2021 was very hot. 🌡️
- The average temperature in September 2021 was 15.9°C.
- That's 2.5°C hotter than the average of 13.4°C.
- This puts it in the 98th percentile for heat, as the 7th hottest September on record.
The hottest September ever was in 2006, when it averaged 16.8°C, and the coldest year was 1807 at 10.5°C.
🌧️ Rainfall
In the UK, September 2021 was slightly dry. 🏜️
- The total rainfall in September 2021 was 67.7mm.
- That's 13.2mm drier than the average of 80.9mm.
- This puts it in the 41st percentile for rainfall, as the 103rd driest September on record.
The wettest September ever was in 1918, when rainfall totalled 189.5mm, and the driest year was 1959 at 8mm.
☀️ Sunlight
In the UK, September 2021 was slightly cloudy. ☁️
- In September 2021 there were119.5 hours of sunshine.
- That's 1.4 hours less sunshine than the average of 120.9 hours.
- This puts it in the 46th percentile for sunshine, as the 47th least sunny September on record.
The sunniest September ever was in 1959, when there were 172.2 hours of sunshine, and the least sunny year was 2022 with 0 hours of sunshine.