Average annual temperature is 9.1 °C
Absolute maximum temperature: 29.9 °C
Absolute minimum temperature: -15.9 °C
Number of sunny days: 113 days
Number of rainy days: 215 days
Number of snow days: 37 days
Look at detailed online map of Town of Westfield
* Weather data for Town of Westfield 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) | 12.5 | 17.1 | 13.4 | 25.8 | 27.8 | 29.1 | 29.9 | 29.4 | 29.9 | 26.2 | 15.7 | 13.3 |
| Average daytime temperature (°C) | 2.8 | 5.9 | 4.2 | 14.2 | 17.7 | 21.9 | 24.7 | 22.2 | 20.5 | 14.3 | 7.2 | 5.6 |
| Average temperature (°C) | -0.6 | -0.7 | -0.1 | 8.3 | 12.3 | 17.2 | 20.3 | 18.2 | 16.3 | 10.9 | 3.5 | 2.5 |
| Average night temperature (°C) | -3.3 | -4.8 | -3.6 | 3.9 | 7.6 | 13.2 | 16.6 | 15.1 | 13.1 | 8.1 | 0.6 | 0.2 |
| Absolute minimum temperature (°C) | -13.4 | -15.9 | -10.6 | -5.6 | 0.1 | 8.5 | 13.1 | 10.9 | 8.7 | 1.4 | -9.4 | -6.7 |
| 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) | 9.5 | 10.6 | 11.9 | 13.4 | 14.6 | 15.2 | 14.9 | 13.9 | 12.5 | 11.1 | 9.8 | 9.2 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 2.2 | 5.4 | 5.7 | 8.4 | 11.2 | 11.1 | 11.5 | 10.4 | 9.2 | 5.6 | 5.3 | 3.3 |
| Precipitation (mm) | 175 | 89 | 139 | 106 | 63 | 111 | 98 | 216 | 35 | 115 | 86 | 129 |
| Sunny days | 4 | 8 | 8 | 10 | 21 | 11 | 4 | 5 | 14 | 12 | 7 | 9 |
| Rainy days | 16 | 14 | 12 | 19 | 10 | 19 | 27 | 26 | 16 | 19 | 19 | 18 |
| Snow days | 11 | 6 | 11 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 4 |
The best time to visit Town of Westfield during the most sunny months:
The largest precipitation sum in Town of Westfield is at