Average annual temperature is 11.2 °C
Absolute maximum temperature: 33.3 °C
Absolute minimum temperature: -22.7 °C
Number of sunny days: 169 days
Number of rainy days: 190 days
Number of snow days: 6 days
Look at detailed online map of Westchester
* Weather data for Westchester 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 | 18.0 | 13.7 | 30.7 | 26.7 | 30.6 | 30.9 | 28.6 | 33.3 | 27.2 | 17.1 | 15.7 |
| Average daytime temperature (°C) | 6.6 | 6.0 | 8.4 | 16.5 | 19.8 | 23.5 | 27.6 | 25.1 | 22.5 | 18.1 | 9.5 | 8.0 |
| Average temperature (°C) | 3.0 | 1.3 | 3.5 | 10.6 | 13.9 | 17.9 | 22.8 | 20.6 | 18.2 | 13.3 | 4.7 | 3.8 |
| Average night temperature (°C) | -0.3 | -2.8 | -0.6 | 5.9 | 8.6 | 13.4 | 19.2 | 16.8 | 14.7 | 9.8 | 0.9 | 0.6 |
| Absolute minimum temperature (°C) | -5.2 | -22.7 | -4.6 | -2.4 | 2.9 | 6.8 | 14.1 | 12.5 | 8.2 | 3.6 | -4.9 | -7.0 |
| 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 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.6 | 10.6 | 11.9 | 13.3 | 14.5 | 15.1 | 14.8 | 13.8 | 12.5 | 11.1 | 9.9 | 9.2 |
| 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) | 4.3 | 6.5 | 7.4 | 8.6 | 11.9 | 10.2 | 11.0 | 9.6 | 7.4 | 7.8 | 7.0 | 5.4 |
| Precipitation (mm) | 172 | 50 | 111 | 112 | 99 | 72 | 212 | 212 | 250 | 74 | 51 | 239 |
| Sunny days | 10 | 14 | 16 | 16 | 22 | 5 | 8 | 11 | 15 | 14 | 21 | 17 |
| Rainy days | 19 | 12 | 13 | 14 | 9 | 25 | 23 | 20 | 15 | 17 | 9 | 14 |
| Snow days | 2 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Westchester during the most sunny months:
The largest precipitation sum in Westchester is at