Average annual temperature is 14.1 °C
Absolute maximum temperature: 38.9 °C
Absolute minimum temperature: -11.5 °C
Number of sunny days: 204 days
Number of rainy days: 161 days
Look at detailed online map of West Sullivan
* Weather data for 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) | 19.2 | 19.7 | 22.0 | 28.0 | 30.9 | 37.6 | 36.6 | 38.9 | 32.7 | 29.2 | 26.8 | 17.7 |
| Average daytime temperature (°C) | 8.5 | 11.5 | 12.8 | 20.4 | 25.7 | 29.9 | 31.3 | 29.7 | 27.3 | 20.4 | 14.5 | 10.6 |
| Average temperature (°C) | 3.3 | 5.0 | 6.5 | 13.1 | 18.8 | 23.1 | 25.0 | 24.1 | 20.8 | 14.8 | 8.3 | 5.7 |
| Average night temperature (°C) | -0.1 | 0.3 | 2.1 | 7.2 | 13.0 | 17.0 | 20.0 | 19.9 | 15.8 | 10.6 | 3.8 | 2.5 |
| Absolute minimum temperature (°C) | -11.5 | -10.1 | -7.6 | 0.3 | 5.1 | 11.0 | 15.3 | 13.3 | 10.6 | -2.9 | -5.7 | -5.8 |
| 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 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.9 | 10.8 | 12.0 | 13.2 | 14.2 | 14.8 | 14.5 | 13.6 | 12.4 | 11.2 | 10.1 | 9.6 |
| 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) | 5.5 | 7.3 | 7.2 | 10.2 | 11.0 | 12.7 | 11.6 | 10.1 | 10.4 | 7.5 | 7.7 | 5.7 |
| Precipitation (mm) | 84 | 74 | 236 | 29 | 83 | 26 | 146 | 147 | 43 | 70 | 39 | 54 |
| Sunny days | 16 | 18 | 16 | 22 | 16 | 17 | 10 | 13 | 16 | 19 | 23 | 18 |
| Rainy days | 15 | 10 | 15 | 8 | 15 | 13 | 21 | 18 | 14 | 12 | 7 | 13 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit West Sullivan during the most sunny months:
The largest precipitation sum in West Sullivan is at