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Purley, England climate
Cfb Oceanic / temperate
Purley has a mildly seasonal cool-temperate climate (Oceanic / temperate, Köppen Cfb). The hottest month is July with an average daily high near 22°C, while the coldest is January averaging around 2°C at night. Precipitation is fairly even year-round, totalling about 766 mm. At latitude 51°N, day length swings from 7.6 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)Purley climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 7 | 7 | 10 | 13 | 16 | 19 | 22 | 21 | 18 | 14 | 10 | 7 |
| Avg temp (°C) | 4 | 5 | 7 | 9 | 12 | 15 | 17 | 17 | 14 | 11 | 7 | 5 |
| Avg low (°C) | 2 | 2 | 3 | 5 | 8 | 11 | 13 | 13 | 10 | 8 | 5 | 3 |
| Precipitation (mm) | 78 | 63 | 51 | 46 | 57 | 53 | 52 | 59 | 53 | 88 | 83 | 82 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 7 | 7 | 10 | 13 | 16 | 19 |
| Avg temp (°C) | 4 | 5 | 7 | 9 | 12 | 15 |
| Avg low (°C) | 2 | 2 | 3 | 5 | 8 | 11 |
| Precipitation (mm) | 78 | 63 | 51 | 46 | 57 | 53 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 22 | 21 | 18 | 14 | 10 | 7 |
| Avg temp (°C) | 17 | 17 | 14 | 11 | 7 | 5 |
| Avg low (°C) | 13 | 13 | 10 | 8 | 5 | 3 |
| Precipitation (mm) | 52 | 59 | 53 | 88 | 83 | 82 |
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 (%) | 93 | 90 | 86 | 82 | 79 | 78 | 76 | 77 | 81 | 87 | 92 | 94 |
| Wind speed (km/h) | 14.1 | 13.9 | 13.2 | 11.6 | 11.4 | 10.8 | 10.7 | 10.9 | 11.3 | 12.5 | 12.4 | 13.2 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 73 | 74 | 74 | 71 | 72 | 73 |
| Relative humidity (%) | 93 | 90 | 86 | 82 | 79 | 78 |
| Wind speed (km/h) | 14.1 | 13.9 | 13.2 | 11.6 | 11.4 | 10.8 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 70 | 71 | 69 | 72 | 74 | 73 |
| Relative humidity (%) | 76 | 77 | 81 | 87 | 92 | 94 |
| Wind speed (km/h) | 10.7 | 10.9 | 11.3 | 12.5 | 12.4 | 13.2 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 29 years of daily observations at Kenley Airfield, a weather station, about 5 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.