Average annual temperature is 12.7 °C
Absolute maximum temperature: 35.3 °C
Absolute minimum temperature: -14.1 °C
Number of sunny days: 189 days
Number of rainy days: 165 days
Number of snow days: 11 days
Look at detailed online map of Rantoul
* Weather data for Rantoul 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) | 18.2 | 17.8 | 19.6 | 27.7 | 32.2 | 33.5 | 34.9 | 35.3 | 31.4 | 28.9 | 24.2 | 15.8 |
| Average daytime temperature (°C) | 5.5 | 8.9 | 10.1 | 18.7 | 25.1 | 29.3 | 29.1 | 27.6 | 25.1 | 18.5 | 11.8 | 8.1 |
| Average temperature (°C) | 1.3 | 2.7 | 4.5 | 11.5 | 18.6 | 22.9 | 23.7 | 22.6 | 19.9 | 13.6 | 6.3 | 4.0 |
| Average night temperature (°C) | -1.6 | -1.6 | 0.1 | 5.6 | 12.3 | 16.8 | 18.8 | 18.2 | 15.3 | 9.5 | 1.9 | 1.2 |
| Absolute minimum temperature (°C) | -12.9 | -14.1 | -10.6 | -1.8 | 2.5 | 10.2 | 14.4 | 11.6 | 10.1 | -2.8 | -9.8 | -7.8 |
| 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 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.7 | 10.7 | 11.9 | 13.3 | 14.4 | 15.0 | 14.7 | 13.7 | 12.5 | 11.1 | 10.0 | 9.4 |
| 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) | 3.7 | 7.5 | 6.5 | 9.3 | 11.0 | 12.2 | 12.4 | 10.7 | 9.9 | 6.9 | 7.6 | 4.5 |
| Precipitation (mm) | 59 | 86 | 101 | 73 | 55 | 26 | 135 | 142 | 62 | 126 | 18 | 73 |
| Sunny days | 10 | 17 | 13 | 17 | 17 | 21 | 9 | 16 | 16 | 16 | 21 | 16 |
| Rainy days | 14 | 9 | 17 | 13 | 14 | 9 | 22 | 15 | 14 | 15 | 8 | 15 |
| Snow days | 7 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 |
The best time to visit Rantoul during the most sunny months:
The largest precipitation sum in Rantoul is at