London, United Kingdom All-Time Weather Extremes
The most extreme temperature, precipitation, and snowfall ever recorded in London, from NOAA GHCN daily weather observations.
| Temperature | ||
|---|---|---|
| Record High | 101.3°F (39°C) | July 18, 2022 |
| Record Low | 1.4°F (-17°C) | December 13, 1981 |
| Lowest High | 19°F (-7°C) | January 11, 1987 |
| Highest Low | 69.4°F (21°C) | June 26, 2026 |
| Highest Mean | 81°F (27°C) | July 24, 2019 |
| Lowest Mean | 12.4°F (-11°C) | January 23, 1963 |
| Precipitation | ||
| Max in One Calendar Day | 3.15" (80.0 mm) | June 21, 1936 |
| Max in One Month | 8.04" (204.3 mm) | October 1987 |
| Least in One Month | 0.00" (0.0 mm) | September 1920 |
| Max in One Year | 38.45" (976.6 mm) | 2024 |
| Least in One Year | 14.95" (379.7 mm) | 1921 |
| Period of Record | ||
| Temperature | January 1, 1916 – June 30, 2026 | |
| Precipitation | January 2, 1916 – June 30, 2026 | |
Note: Records compiled from NOAA GHCN-Daily observations at ROTHAMSTED (29 mi from London, United Kingdom). Quality-flagged readings are excluded. Monthly and annual totals require substantially complete reporting for “least” records.
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Frequently Asked Questions
What is the hottest temperature ever recorded in London, United Kingdom?
The all-time record high in London, United Kingdom is 101.3°F (39°C), set on July 18, 2022.
What is the coldest temperature ever recorded in London, United Kingdom?
The all-time record low in London, United Kingdom is 1.4°F (-17°C), set on December 13, 1981.
What is the most rain London, United Kingdom has ever had in one day?
The most precipitation recorded in one calendar day near London, United Kingdom is 3.15 inches, on June 21, 1936.
London Weather History
Monthly averages and climate data for London
United Kingdom Weather History
Historical weather for other United Kingdom cities