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Winchester, England climate
Cfb Oceanic / temperate
Winchester has a mildly seasonal cool-temperate climate (Oceanic / temperate, Köppen Cfb). The hottest month is July with an average daily high near 72°F, while the coldest is January averaging around 35°F at night. Precipitation is fairly even year-round, totalling about 31 inches. At latitude 51°N, day length swings from 7.7 hours in midwinter to 16.3 hours at midsummer.
Temperature & precipitation
Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figuresHours of sunshine per day
Estimated sunny hours each month — daylight length × clear-sky fraction · 1991–2020 monthly cloud cover (NASA POWER)Winchester climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 46 | 47 | 52 | 57 | 63 | 68 | 72 | 71 | 66 | 59 | 51 | 47 |
| Avg temp (°F) | 41 | 41 | 45 | 49 | 54 | 59 | 63 | 63 | 58 | 52 | 46 | 41 |
| Avg low (°F) | 35 | 35 | 38 | 40 | 45 | 50 | 54 | 54 | 50 | 45 | 40 | 36 |
| Precipitation (in) | 3.3 | 2.7 | 2.1 | 2.1 | 2.1 | 1.9 | 2.1 | 2.2 | 2.1 | 3.2 | 3.6 | 3.5 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 46 | 47 | 52 | 57 | 63 | 68 |
| Avg temp (°F) | 41 | 41 | 45 | 49 | 54 | 59 |
| Avg low (°F) | 35 | 35 | 38 | 40 | 45 | 50 |
| Precipitation (in) | 3.3 | 2.7 | 2.1 | 2.1 | 2.1 | 1.9 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 72 | 71 | 66 | 59 | 51 | 47 |
| Avg temp (°F) | 63 | 63 | 58 | 52 | 46 | 41 |
| Avg low (°F) | 54 | 54 | 50 | 45 | 40 | 36 |
| Precipitation (in) | 2.1 | 2.2 | 2.1 | 3.2 | 3.6 | 3.5 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 73 | 74 | 74 | 71 | 72 | 73 | 70 | 71 | 69 | 72 | 74 | 73 |
| Relative humidity (%) | 94 | 93 | 89 | 85 | 82 | 80 | 77 | 78 | 81 | 88 | 93 | 95 |
| Wind speed (mph) | 8.8 | 8.5 | 8.1 | 7.2 | 7.1 | 6.8 | 6.9 | 6.9 | 7.2 | 7.9 | 7.8 | 8.4 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 73 | 74 | 74 | 71 | 72 | 73 |
| Relative humidity (%) | 94 | 93 | 89 | 85 | 82 | 80 |
| Wind speed (mph) | 8.8 | 8.5 | 8.1 | 7.2 | 7.1 | 6.8 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 70 | 71 | 69 | 72 | 74 | 73 |
| Relative humidity (%) | 77 | 78 | 81 | 88 | 93 | 95 |
| Wind speed (mph) | 6.9 | 6.9 | 7.2 | 7.9 | 7.8 | 8.4 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at Middle Wallop, a weather station, about 20 km from the city centre. The underlying daily records come from NOAA's global station network.
Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.