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Winona, Minnesota climate
Dfa Hot-summer humid continental
Winona has a strongly seasonal cool-temperate climate (Hot-summer humid continental, Köppen Dfa). The hottest month is July with an average daily high near 30°C, while the coldest is January averaging around −12°C at night. Around 1077 mm of precipitation falls each year, peaking in June (141 mm) and easing off in February (44 mm).
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)Winona climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | −3 | 0 | 8 | 16 | 22 | 28 | 30 | 28 | 24 | 16 | 8 | 0 |
| Avg temp (°C) | −7 | −5 | 2 | 10 | 16 | 22 | 24 | 23 | 18 | 11 | 3 | −4 |
| Avg low (°C) | −12 | −10 | −3 | 4 | 10 | 16 | 18 | 17 | 13 | 6 | −1 | −8 |
| Precipitation (mm) | 44 | 44 | 57 | 106 | 120 | 141 | 127 | 117 | 113 | 92 | 65 | 51 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | −3 | 0 | 8 | 16 | 22 | 28 |
| Avg temp (°C) | −7 | −5 | 2 | 10 | 16 | 22 |
| Avg low (°C) | −12 | −10 | −3 | 4 | 10 | 16 |
| Precipitation (mm) | 44 | 44 | 57 | 106 | 120 | 141 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 30 | 28 | 24 | 16 | 8 | 0 |
| Avg temp (°C) | 24 | 23 | 18 | 11 | 3 | −4 |
| Avg low (°C) | 18 | 17 | 13 | 6 | −1 | −8 |
| Precipitation (mm) | 127 | 117 | 113 | 92 | 65 | 51 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 64 | 63 | 65 | 66 | 66 | 62 | 52 | 53 | 51 | 61 | 65 | 67 |
| Relative humidity (%) | 91 | 88 | 80 | 76 | 76 | 78 | 75 | 74 | 74 | 77 | 83 | 89 |
| Wind speed (mph) | 8.5 | 8.9 | 8.4 | 8.3 | 7.2 | 6.2 | 5.7 | 5.5 | 6.5 | 7.2 | 7.3 | 7.4 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 64 | 63 | 65 | 66 | 66 | 62 |
| Relative humidity (%) | 91 | 88 | 80 | 76 | 76 | 78 |
| Wind speed (mph) | 8.5 | 8.9 | 8.4 | 8.3 | 7.2 | 6.2 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 52 | 53 | 51 | 61 | 65 | 67 |
| Relative humidity (%) | 75 | 74 | 74 | 77 | 83 | 89 |
| Wind speed (mph) | 5.7 | 5.5 | 6.5 | 7.2 | 7.3 | 7.4 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at LA Crosse Municipal Airport, a weather station, about 36 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.