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Delémont, Switzerland climate
Cfb Oceanic / temperate
Delémont has a seasonal cool-temperate climate (Oceanic / temperate, Köppen Cfb). The hottest month is July with an average daily high near 77°F, while the coldest is January averaging around 28°F at night. Precipitation is fairly even year-round, totalling about 34 inches.
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Summers
Mild
Highs near 77°F in July.
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Winters
Cold
Lows near 28°F in January.
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Rain
Moderate rainfall
About 34 in of rain a year.
Wettest in August
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Sky & trend
Often cloudy
Cloudy skies much of the year.
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)Delémont climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 40 | 44 | 52 | 59 | 66 | 73 | 77 | 76 | 68 | 59 | 48 | 41 |
| Avg temp (°F) | 34 | 35 | 42 | 48 | 56 | 62 | 66 | 65 | 57 | 50 | 41 | 35 |
| Avg low (°F) | 28 | 28 | 33 | 38 | 46 | 52 | 55 | 55 | 49 | 43 | 35 | 29 |
| Precipitation (in) | 2.1 | 2.0 | 2.1 | 2.6 | 3.7 | 3.6 | 3.7 | 3.8 | 2.8 | 2.9 | 2.7 | 2.7 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 40 | 44 | 52 | 59 | 66 | 73 |
| Avg temp (°F) | 34 | 35 | 42 | 48 | 56 | 62 |
| Avg low (°F) | 28 | 28 | 33 | 38 | 46 | 52 |
| Precipitation (in) | 2.1 | 2.0 | 2.1 | 2.6 | 3.7 | 3.6 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 77 | 76 | 68 | 59 | 48 | 41 |
| Avg temp (°F) | 66 | 65 | 57 | 50 | 41 | 35 |
| Avg low (°F) | 55 | 55 | 49 | 43 | 35 | 29 |
| Precipitation (in) | 3.7 | 3.8 | 2.8 | 2.9 | 2.7 | 2.7 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 71 | 70 | 68 | 69 | 70 | 66 | 61 | 60 | 62 | 70 | 75 | 74 |
| Relative humidity (%) | 91 | 88 | 83 | 79 | 79 | 77 | 76 | 76 | 80 | 86 | 90 | 91 |
| Wind speed (mph) | 5.1 | 5.2 | 5.1 | 4.4 | 4.3 | 4.0 | 3.8 | 3.5 | 3.7 | 4.0 | 4.1 | 4.9 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 71 | 70 | 68 | 69 | 70 | 66 |
| Relative humidity (%) | 91 | 88 | 83 | 79 | 79 | 77 |
| Wind speed (mph) | 5.1 | 5.2 | 5.1 | 4.4 | 4.3 | 4.0 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 61 | 60 | 62 | 70 | 75 | 74 |
| Relative humidity (%) | 76 | 76 | 80 | 86 | 90 | 91 |
| Wind speed (mph) | 3.8 | 3.5 | 3.7 | 4.0 | 4.1 | 4.9 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from a national meteorological service, measured at Delémont, about 2 km from the city centre.
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.