Average annual temperature is 9.7 °C
Absolute maximum temperature: 31.7 °C
Absolute minimum temperature: -17.5 °C
Number of sunny days: 133 days
Number of rainy days: 199 days
Number of snow days: 33 days
Look at detailed online map of Borough of Westfield
* Weather data for Borough 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) | 12.6 | 16.4 | 14.4 | 27.9 | 28.8 | 30.3 | 31.7 | 28.9 | 30.6 | 26.6 | 15.8 | 11.0 |
| Average daytime temperature (°C) | 3.9 | 6.8 | 5.9 | 16.3 | 19.6 | 23.0 | 27.3 | 24.1 | 21.7 | 15.6 | 7.9 | 5.7 |
| Average temperature (°C) | 0.7 | 0.2 | 0.8 | 9.4 | 12.8 | 17.3 | 21.5 | 19.1 | 16.4 | 11.3 | 3.2 | 2.4 |
| Average night temperature (°C) | -1.8 | -4.4 | -3.1 | 3.9 | 6.7 | 12.5 | 16.5 | 15.0 | 12.4 | 7.8 | -0.2 | 0.0 |
| Absolute minimum temperature (°C) | -8.0 | -17.5 | -12.8 | -6.0 | -0.5 | 7.1 | 13.0 | 10.6 | 7.5 | -1.4 | -7.4 | -6.4 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 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) | 9.5 | 10.6 | 11.9 | 13.4 | 14.6 | 15.2 | 14.9 | 13.8 | 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) | 2.8 | 6.3 | 5.9 | 8.7 | 11.5 | 10.5 | 11.6 | 9.8 | 8.5 | 5.9 | 6.2 | 2.9 |
| Precipitation (mm) | 91 | 52 | 77 | 66 | 34 | 84 | 112 | 107 | 32 | 61 | 45 | 107 |
| Sunny days | 8 | 11 | 5 | 10 | 22 | 12 | 7 | 5 | 15 | 14 | 13 | 11 |
| Rainy days | 14 | 14 | 14 | 18 | 9 | 18 | 24 | 26 | 15 | 17 | 14 | 16 |
| Snow days | 9 | 3 | 12 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 4 |
The best time to visit Borough of Westfield during the most sunny months:
The largest precipitation sum in Borough of Westfield is at