Average annual temperature is 20.4 °C
Absolute maximum temperature: 39.9 °C
Absolute minimum temperature: -2.2 °C
Number of sunny days: 181 days
Number of rainy days: 184 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) | 25.3 | 28.1 | 29.7 | 30.1 | 35.0 | 38.2 | 38.5 | 39.9 | 36.9 | 32.3 | 27.5 | 25.2 |
| Average daytime temperature (°C) | 18.0 | 21.2 | 23.0 | 25.1 | 30.2 | 33.1 | 35.0 | 37.7 | 33.1 | 26.6 | 20.1 | 17.1 |
| Average temperature (°C) | 12.8 | 15.1 | 16.7 | 18.7 | 23.1 | 26.5 | 28.3 | 30.6 | 26.6 | 20.2 | 14.2 | 11.2 |
| Average night temperature (°C) | 8.7 | 11.0 | 11.9 | 13.7 | 17.6 | 21.2 | 23.5 | 25.1 | 21.3 | 15.0 | 9.8 | 6.7 |
| Absolute minimum temperature (°C) | -0.8 | 0.1 | -2.2 | 7.0 | 10.5 | 19.0 | 19.9 | 19.9 | 17.2 | 7.8 | 1.1 | 0.6 |
| 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 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 |
| Daylight mean duration (h) | 10.4 | 11.1 | 12.0 | 13.0 | 13.8 | 14.2 | 14.0 | 13.3 | 12.4 | 11.4 | 10.6 | 10.1 |
| Daylight minimum duration (h) | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 | 10.0 |
| Sunshine mean duration (h) | 6.5 | 7.1 | 8.6 | 8.9 | 10.4 | 11.1 | 10.9 | 11.6 | 10.9 | 9.1 | 6.8 | 7.7 |
| Precipitation (mm) | 121 | 166 | 138 | 84 | 126 | 101 | 116 | 42 | 54 | 52 | 89 | 100 |
| Sunny days | 14 | 10 | 16 | 13 | 12 | 6 | 11 | 20 | 14 | 25 | 18 | 22 |
| Rainy days | 17 | 18 | 15 | 17 | 19 | 24 | 20 | 11 | 16 | 6 | 12 | 9 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Winchester during the most sunny months:
The largest precipitation sum in Winchester is at