Average annual temperature is 9.1 °C
Absolute maximum temperature: 36.9 °C
Absolute minimum temperature: -25.5 °C
Number of sunny days: 185 days
Number of rainy days: 143 days
Number of snow days: 37 days
Look at detailed online map of Winona County
* Weather data for Winona County United States is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 4.3 | 7.8 | 12.4 | 26.1 | 30.7 | 30.3 | 33.1 | 36.9 | 33.7 | 29.2 | 16.6 | 11.1 |
| Average daytime temperature (°C) | -2.1 | 0.8 | 4.4 | 13.2 | 22.6 | 27.0 | 26.9 | 27.4 | 24.1 | 14.7 | 7.3 | 4.2 |
| Average temperature (°C) | -5.8 | -4.7 | -0.8 | 7.1 | 15.8 | 21.3 | 21.4 | 21.9 | 18.8 | 10.5 | 2.7 | 0.4 |
| Average night temperature (°C) | -8.9 | -9.0 | -5.0 | 2.5 | 10.2 | 15.9 | 16.4 | 17.3 | 14.9 | 7.2 | -0.7 | -2.0 |
| Absolute minimum temperature (°C) | -25.0 | -25.5 | -18.3 | -7.1 | 0.8 | 9.0 | 11.7 | 11.6 | 8.0 | -6.1 | -13.9 | -8.7 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.3 | 10.5 | 11.9 | 13.5 | 14.7 | 15.4 | 15.1 | 14.0 | 12.5 | 11.0 | 9.7 | 9.0 |
| Daylight minimum duration (h) | 8.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 8.0 |
| Sunshine mean duration (h) | 4.0 | 6.4 | 7.0 | 7.9 | 11.5 | 12.5 | 12.3 | 11.3 | 8.8 | 6.9 | 6.6 | 4.2 |
| Precipitation (mm) | 53 | 57 | 71 | 93 | 65 | 26 | 42 | 73 | 159 | 114 | 7 | 31 |
| Sunny days | 16 | 16 | 14 | 15 | 17 | 14 | 10 | 19 | 11 | 14 | 22 | 17 |
| Rainy days | 6 | 4 | 8 | 12 | 14 | 16 | 21 | 12 | 19 | 15 | 7 | 9 |
| Snow days | 9 | 8 | 9 | 3 | 0 | 0 | 0 | 0 | 0 | 2 | 1 | 5 |
The best time to visit Winona County during the most sunny months:
Months with the longest average daylight duration in Winona County:
The largest precipitation sum in Winona County is at