Average annual temperature is 8.7 °C
Absolute maximum temperature: 33.3 °C
Absolute minimum temperature: -29.9 °C
Number of sunny days: 164 days
Number of rainy days: 169 days
Number of snow days: 32 days
Look at detailed online map of Town of Mount Vernon
* Weather data for Town of Mount Vernon 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) | 8.6 | 9.3 | 10.2 | 23.9 | 29.9 | 33.3 | 30.7 | 26.5 | 30.3 | 27.1 | 14.4 | 12.7 |
| Average daytime temperature (°C) | 2.3 | 0.3 | 4.7 | 12.4 | 18.9 | 21.0 | 26.1 | 23.3 | 22.8 | 16.7 | 6.1 | 3.9 |
| Average temperature (°C) | -1.7 | -5.3 | 0.3 | 7.0 | 13.0 | 16.4 | 22.1 | 19.1 | 18.1 | 12.3 | 2.0 | -0.1 |
| Average night temperature (°C) | -4.9 | -10.1 | -3.6 | 2.8 | 7.8 | 12.9 | 18.7 | 15.6 | 14.4 | 9.0 | -1.2 | -3.2 |
| Absolute minimum temperature (°C) | -11.6 | -29.9 | -10.5 | -5.2 | 1.2 | 6.8 | 13.4 | 12.4 | 8.8 | 0.1 | -6.8 | -12.3 |
| 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 | 10.4 | 11.9 | 13.5 | 14.8 | 15.5 | 15.2 | 14.0 | 12.5 | 11.0 | 9.6 | 8.9 |
| 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) | 4.3 | 6.8 | 7.2 | 7.5 | 11.1 | 6.7 | 9.5 | 9.7 | 8.9 | 5.8 | 6.6 | 4.3 |
| Precipitation (mm) | 148 | 40 | 69 | 86 | 144 | 254 | 214 | 165 | 109 | 121 | 72 | 194 |
| Sunny days | 10 | 16 | 14 | 16 | 20 | 5 | 2 | 7 | 18 | 15 | 22 | 19 |
| Rainy days | 13 | 4 | 5 | 13 | 11 | 25 | 29 | 24 | 12 | 16 | 6 | 11 |
| Snow days | 8 | 8 | 12 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 1 |
The best time to visit Town of Mount Vernon during the most sunny months:
Months with the longest average daylight duration in Town of Mount Vernon:
The largest precipitation sum in Town of Mount Vernon is at