Average annual temperature is 9.7 °C
Absolute maximum temperature: 36.2 °C
Absolute minimum temperature: -25.1 °C
Number of sunny days: 200 days
Number of rainy days: 136 days
Number of snow days: 29 days
Look at detailed online map of Westfield
* Weather data for 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) | 5.9 | 8.7 | 11.4 | 26.4 | 32.3 | 33.3 | 34.1 | 36.2 | 34.2 | 29.0 | 16.6 | 11.2 |
| Average daytime temperature (°C) | 0.0 | 2.0 | 5.5 | 14.4 | 22.4 | 27.9 | 28.7 | 27.5 | 24.3 | 15.3 | 7.6 | 5.0 |
| Average temperature (°C) | -3.6 | -3.3 | -0.1 | 8.0 | 15.2 | 21.3 | 22.8 | 21.7 | 18.6 | 11.0 | 2.8 | 1.2 |
| Average night temperature (°C) | -6.5 | -7.8 | -4.4 | 2.9 | 8.8 | 14.7 | 16.8 | 16.7 | 14.2 | 7.2 | -0.9 | -1.7 |
| Absolute minimum temperature (°C) | -25.1 | -24.6 | -18.4 | -4.5 | -0.2 | 6.8 | 12.1 | 8.5 | 6.1 | -4.1 | -12.7 | -8.3 |
| 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) | 9.3 | 10.5 | 11.9 | 13.4 | 14.7 | 15.4 | 15.1 | 14.0 | 12.5 | 11.0 | 9.7 | 9.0 |
| Daylight minimum duration (h) | 8.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 8.0 |
| Sunshine mean duration (h) | 3.9 | 6.5 | 7.1 | 8.1 | 10.6 | 12.5 | 12.7 | 11.4 | 8.9 | 6.5 | 6.5 | 4.5 |
| Precipitation (mm) | 41 | 69 | 70 | 97 | 56 | 39 | 63 | 85 | 88 | 100 | 12 | 38 |
| Sunny days | 16 | 14 | 14 | 13 | 21 | 22 | 13 | 19 | 12 | 12 | 24 | 20 |
| Rainy days | 6 | 8 | 8 | 16 | 10 | 8 | 18 | 12 | 18 | 17 | 6 | 9 |
| Snow days | 9 | 6 | 9 | 1 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 2 |
The best time to visit Westfield during the most sunny months:
Months with the longest average daylight duration in Westfield:
The largest precipitation sum in Westfield is at