Average annual temperature is 16.7 °C
Absolute maximum temperature: 39.8 °C
Absolute minimum temperature: -7.1 °C
Number of sunny days: 212 days
Number of rainy days: 152 days
Number of snow days: 1 day
Look at detailed online map of Township of West Sullivan
* Weather data for Township of West Sullivan 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) | 20.9 | 22.3 | 24.1 | 27.8 | 32.8 | 38.3 | 37.9 | 39.8 | 34.8 | 32.2 | 26.5 | 17.6 |
| Average daytime temperature (°C) | 11.5 | 14.0 | 16.2 | 20.9 | 27.8 | 31.9 | 33.6 | 33.4 | 30.3 | 23.1 | 15.9 | 12.3 |
| Average temperature (°C) | 6.5 | 8.1 | 10.1 | 15.1 | 21.1 | 25.3 | 27.3 | 27.1 | 23.6 | 17.5 | 10.3 | 7.5 |
| Average night temperature (°C) | 2.8 | 3.9 | 5.5 | 10.0 | 15.3 | 19.4 | 22.4 | 22.4 | 18.1 | 13.2 | 5.9 | 4.0 |
| Absolute minimum temperature (°C) | -6.1 | -7.1 | -6.0 | 3.9 | 6.6 | 14.5 | 17.5 | 16.2 | 13.0 | -2.1 | -3.1 | -2.9 |
| 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 | 9.0 |
| Daylight mean duration (h) | 10.0 | 10.9 | 12.0 | 13.1 | 14.1 | 14.6 | 14.3 | 13.5 | 12.4 | 11.3 | 10.3 | 9.8 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 5.6 | 7.0 | 7.8 | 9.3 | 11.1 | 12.6 | 11.5 | 10.8 | 10.8 | 8.2 | 7.9 | 7.0 |
| Precipitation (mm) | 138 | 134 | 223 | 74 | 85 | 75 | 78 | 99 | 34 | 103 | 41 | 74 |
| Sunny days | 17 | 16 | 15 | 19 | 13 | 17 | 12 | 19 | 20 | 19 | 23 | 22 |
| Rainy days | 14 | 12 | 16 | 11 | 18 | 13 | 19 | 12 | 10 | 12 | 7 | 8 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
The best time to visit Township of West Sullivan during the most sunny months:
The largest precipitation sum in Township of West Sullivan is at