London
United Kingdom
| Season | Autumn | Winter | Spring | Summer | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Sep | Oct | Nov | Dec | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Year |
| Record high, °C | 27 | 22 | 17 | 15 | 20 | 18 | 21 | 21 | 28 | 30 | 30 | 32 | 32 |
| Average high, °C | 20 | 16 | 11 | 8 | 8 | 9 | 12 | 15 | 18 | 21 | 23 | 23 | 15 |
| Average temperature, °C | 14 | 10 | 6 | 4 | 3 | 4 | 5 | 8 | 11 | 15 | 16 | 16 | 9 |
| Average low, °C | 11 | 9 | 6 | 3 | 3 | 3 | 5 | 6 | 9 | 12 | 14 | 14 | 8 |
| Record low, °C | 6 | 1 | -3 | -3 | -5 | -7 | -2 | 0 | 1 | 5 | 8 | 8 | -7 |
| Rain, days | 9 | 11 | 11 | 10 | 11 | 9 | 10 | 9 | 9 | 7 | 6 | 8 | 110 |
| Snow, days | 0 | 0 | 1 | 1 | 1 | 3 | 0 | 1 | 0 | 0 | 0 | 0 | 7 |
| Fog, days | 5 | 4 | 9 | 6 | 5 | 7 | 3 | 3 | 3 | 2 | 2 | 3 | 52 |
| Thunderstorms, days | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 4 |
| Snowfall, cm. | 0 | 0 | 2 | 19 | 5 | 9 | 3 | 0 | 0 | 0 | 0 | 0 | 38 |
| Average precipitation, mm. | 54 | 64 | 59 | 52 | 48 | 38 | 40 | 42 | 48 | 48 | 58 | 59 | 610 |
| Relative humidity, % | 84 | 87 | 89 | 89 | 89 | 87 | 83 | 84 | 80 | 78 | 78 | 81 | 84 |
| Relative humidity morning, % | 87 | 88 | 90 | 88 | 87 | 87 | 85 | 88 | 86 | 84 | 86 | 85 | 87 |
| Relative humidity evening, % | 65 | 73 | 81 | 82 | 79 | 77 | 67 | 66 | 66 | 63 | 64 | 58 | 70 |
| Wind speed, km/h | 12 | 14 | 14 | 15 | 17 | 16 | 16 | 14 | 13 | 12 | 13 | 12 | 14 |
| Day Length, часов | 13 | 11 | 10 | 9 | 9 | 11 | 13 | 15 | 16 | 17 | 17 | 15 | 13 |
| Dew point, °C | 11 | 8 | 6 | 4 | 3 | 2 | 4 | 5 | 8 | 10 | 12 | 12 | 85 |
| Growing degree-day, °C | 117 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 17 | 150 | 172 | 172 | 628 |
| Solar radiation, global, Mj/m2 | 10 | 6 | 3 | 2 | 3 | 5 | 9 | 13 | 17 | 18 | 17 | 15 | 10 |