Average annual temperature is 15.7 °C
Absolute maximum temperature: 40.5 °C
Absolute minimum temperature: -13.4 °C
Number of sunny days: 242 days
Number of rainy days: 121 days
Number of snow days: 2 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) | 17.9 | 22.4 | 26.8 | 32.1 | 32.5 | 38.6 | 38.1 | 40.2 | 40.5 | 32.8 | 23.8 | 21.4 |
| Average daytime temperature (°C) | 9.7 | 12.4 | 16.0 | 23.1 | 25.6 | 30.0 | 33.6 | 34.4 | 31.2 | 23.0 | 15.3 | 11.6 |
| Average temperature (°C) | 3.3 | 4.6 | 8.8 | 15.1 | 19.7 | 24.0 | 27.4 | 28.2 | 24.6 | 16.6 | 9.4 | 6.2 |
| Average night temperature (°C) | -1.0 | -1.1 | 3.1 | 8.8 | 14.4 | 18.9 | 22.2 | 22.4 | 19.3 | 11.5 | 4.5 | 2.2 |
| Absolute minimum temperature (°C) | -13.4 | -9.9 | -7.3 | 0.6 | 4.9 | 15.1 | 17.2 | 15.9 | 13.9 | -3.5 | -7.1 | -3.3 |
| 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 | 14.0 | 14.0 | 14.0 | 12.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 10.0 | 10.8 | 12.0 | 13.1 | 14.1 | 14.7 | 14.4 | 13.5 | 12.4 | 11.2 | 10.2 | 9.7 |
| 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) | 7.5 | 8.6 | 9.3 | 9.8 | 10.2 | 11.3 | 11.9 | 12.2 | 9.8 | 8.8 | 7.8 | 6.6 |
| Precipitation (mm) | 26 | 26 | 5 | 32 | 126 | 162 | 120 | 61 | 42 | 34 | 27 | 60 |
| Sunny days | 24 | 22 | 22 | 21 | 10 | 12 | 19 | 24 | 20 | 22 | 24 | 22 |
| Rainy days | 7 | 6 | 9 | 9 | 21 | 18 | 12 | 7 | 10 | 9 | 5 | 8 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 |
The best time to visit Winchester during the most sunny months:
The largest precipitation sum in Winchester is at