Average annual temperature is 14.0 °C
Absolute maximum temperature: 36.7 °C
Absolute minimum temperature: -11.8 °C
Number of sunny days: 204 days
Number of rainy days: 155 days
Number of snow days: 6 days
Look at detailed online map of Vandalia
* Weather data for Vandalia 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) | 19.4 | 20.1 | 22.2 | 28.0 | 32.1 | 33.7 | 35.3 | 36.7 | 31.7 | 29.5 | 25.3 | 17.1 |
| Average daytime temperature (°C) | 7.6 | 10.8 | 12.4 | 20.1 | 25.5 | 29.6 | 30.8 | 29.2 | 26.7 | 19.9 | 13.6 | 9.5 |
| Average temperature (°C) | 3.1 | 4.7 | 6.4 | 13.1 | 19.0 | 23.2 | 25.3 | 24.0 | 21.0 | 14.8 | 7.8 | 5.0 |
| Average night temperature (°C) | -0.1 | 0.3 | 1.7 | 7.4 | 13.1 | 17.5 | 20.6 | 19.5 | 15.9 | 10.5 | 3.1 | 1.9 |
| Absolute minimum temperature (°C) | -11.8 | -11.5 | -6.9 | -1.1 | 5.2 | 12.7 | 16.4 | 13.2 | 11.3 | -2.5 | -6.8 | -7.2 |
| 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) | 9.8 | 10.7 | 12.0 | 13.2 | 14.3 | 14.9 | 14.6 | 13.7 | 12.4 | 11.2 | 10.1 | 9.5 |
| 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) | 4.8 | 7.6 | 6.8 | 10.0 | 11.2 | 12.6 | 12.4 | 10.2 | 10.3 | 7.7 | 7.8 | 5.3 |
| Precipitation (mm) | 82 | 62 | 180 | 68 | 55 | 76 | 79 | 148 | 20 | 59 | 16 | 78 |
| Sunny days | 18 | 16 | 13 | 17 | 19 | 22 | 9 | 13 | 20 | 18 | 23 | 16 |
| Rainy days | 9 | 11 | 17 | 13 | 12 | 8 | 22 | 18 | 10 | 13 | 7 | 15 |
| Snow days | 4 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Vandalia during the most sunny months:
The largest precipitation sum in Vandalia is at