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Blois, Centre-Val de Loire climate
Cfb Oceanic / temperate
Blois has a seasonal cool-temperate climate (Oceanic / temperate, Köppen Cfb). The hottest month is July with an average daily high near 80°F, while the coldest is January averaging around 36°F at night. Precipitation is fairly even year-round, totalling about 26 inches.
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)Blois climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 46 | 49 | 56 | 62 | 68 | 75 | 80 | 80 | 72 | 63 | 53 | 47 |
| Avg temp (°F) | 41 | 42 | 48 | 52 | 58 | 65 | 69 | 68 | 62 | 55 | 47 | 42 |
| Avg low (°F) | 36 | 35 | 39 | 42 | 48 | 54 | 57 | 57 | 52 | 47 | 41 | 37 |
| Precipitation (in) | 2.6 | 2.0 | 1.9 | 1.9 | 2.3 | 2.0 | 1.9 | 1.7 | 1.9 | 2.4 | 2.9 | 2.7 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 46 | 49 | 56 | 62 | 68 | 75 |
| Avg temp (°F) | 41 | 42 | 48 | 52 | 58 | 65 |
| Avg low (°F) | 36 | 35 | 39 | 42 | 48 | 54 |
| Precipitation (in) | 2.6 | 2.0 | 1.9 | 1.9 | 2.3 | 2.0 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 80 | 80 | 72 | 63 | 53 | 47 |
| Avg temp (°F) | 69 | 68 | 62 | 55 | 47 | 42 |
| Avg low (°F) | 57 | 57 | 52 | 47 | 41 | 37 |
| Precipitation (in) | 1.9 | 1.7 | 1.9 | 2.4 | 2.9 | 2.7 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 72 | 68 | 65 | 65 | 67 | 64 | 59 | 59 | 58 | 67 | 71 | 71 |
| Relative humidity (%) | 93 | 90 | 85 | 80 | 78 | 74 | 68 | 66 | 71 | 83 | 91 | 94 |
| Wind speed (mph) | 7.5 | 7.3 | 6.8 | 6.3 | 6.1 | 5.9 | 5.9 | 5.7 | 5.9 | 6.4 | 6.6 | 7.4 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 72 | 68 | 65 | 65 | 67 | 64 |
| Relative humidity (%) | 93 | 90 | 85 | 80 | 78 | 74 |
| Wind speed (mph) | 7.5 | 7.3 | 6.8 | 6.3 | 6.1 | 5.9 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 59 | 59 | 58 | 67 | 71 | 71 |
| Relative humidity (%) | 68 | 66 | 71 | 83 | 91 | 94 |
| Wind speed (mph) | 5.9 | 5.7 | 5.9 | 6.4 | 6.6 | 7.4 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 29 years of daily observations at Tours Val DE Loire, a weather station, about 49 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.