Average annual temperature is 12.0 °C
Absolute maximum temperature: 32.3 °C
Absolute minimum temperature: -12.9 °C
Number of sunny days: 172 days
Number of rainy days: 179 days
Number of snow days: 14 days
Look at detailed online map of Winchester
* Weather data for Winchester 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) | 17.2 | 19.0 | 20.1 | 26.0 | 30.5 | 31.8 | 32.3 | 31.9 | 31.1 | 28.3 | 23.4 | 15.1 |
| Average daytime temperature (°C) | 5.1 | 9.8 | 10.0 | 16.9 | 22.0 | 26.1 | 28.2 | 26.4 | 24.7 | 18.1 | 11.3 | 8.0 |
| Average temperature (°C) | 1.8 | 3.4 | 4.2 | 10.7 | 16.0 | 20.3 | 23.2 | 21.7 | 19.3 | 13.3 | 5.9 | 4.1 |
| Average night temperature (°C) | -1.0 | -0.9 | 0.0 | 5.6 | 10.5 | 14.8 | 18.6 | 17.3 | 14.5 | 9.3 | 2.1 | 1.2 |
| Absolute minimum temperature (°C) | -10.9 | -12.9 | -8.7 | -1.7 | 2.5 | 9.2 | 14.8 | 11.2 | 9.6 | -3.8 | -9.5 | -6.8 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 15.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.7 | 10.7 | 12.0 | 13.3 | 14.4 | 15.0 | 14.7 | 13.7 | 12.5 | 11.1 | 10.0 | 9.4 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 3.4 | 7.3 | 7.0 | 8.8 | 10.4 | 10.5 | 12.3 | 10.8 | 9.6 | 7.1 | 7.7 | 4.2 |
| Precipitation (mm) | 130 | 64 | 156 | 73 | 66 | 71 | 116 | 123 | 25 | 65 | 20 | 39 |
| Sunny days | 7 | 16 | 13 | 16 | 20 | 12 | 10 | 14 | 18 | 12 | 22 | 12 |
| Rainy days | 16 | 11 | 14 | 14 | 11 | 18 | 21 | 17 | 12 | 18 | 8 | 19 |
| Snow days | 8 | 1 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 |
The best time to visit Winchester during the most sunny months:
The largest precipitation sum in Winchester is at