Average annual temperature is 12.4 °C
Absolute maximum temperature: 31.3 °C
Absolute minimum temperature: 1.2 °C
Number of sunny days: 236 days
Number of rainy days: 129 days
Look at detailed online map of Riverside Grove
* Weather data for Riverside Grove 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) | 17.5 | 17.2 | 17.8 | 22.2 | 23.1 | 24.0 | 27.8 | 28.0 | 23.2 | 31.3 | 23.4 | 21.3 |
| Average daytime temperature (°C) | 12.6 | 12.3 | 11.3 | 14.7 | 15.6 | 16.9 | 22.1 | 22.7 | 19.9 | 21.5 | 17.7 | 15.5 |
| Average temperature (°C) | 9.0 | 7.8 | 7.9 | 10.2 | 11.6 | 12.7 | 16.7 | 17.4 | 15.4 | 15.9 | 12.9 | 11.2 |
| Average night temperature (°C) | 6.6 | 4.6 | 5.3 | 7.0 | 8.9 | 10.0 | 12.3 | 13.7 | 12.1 | 11.8 | 9.5 | 8.0 |
| Absolute minimum temperature (°C) | 2.1 | 1.2 | 2.0 | 3.1 | 6.1 | 7.8 | 9.5 | 11.5 | 9.2 | 6.1 | 3.4 | 3.6 |
| 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 | 12.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.9 | 10.8 | 12.0 | 13.2 | 14.2 | 14.7 | 14.4 | 13.6 | 12.4 | 11.2 | 10.2 | 9.7 |
| 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) | 6.2 | 7.8 | 7.5 | 10.9 | 10.6 | 12.0 | 12.8 | 11.8 | 10.7 | 9.6 | 7.9 | 6.1 |
| Precipitation (mm) | 427 | 144 | 361 | 10 | 55 | 17 | 0 | 1 | 8 | 17 | 92 | 163 |
| Sunny days | 11 | 12 | 9 | 21 | 19 | 23 | 30 | 23 | 26 | 26 | 20 | 16 |
| Rainy days | 20 | 16 | 22 | 9 | 12 | 7 | 1 | 8 | 4 | 5 | 10 | 15 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Riverside Grove during the most sunny months:
The largest precipitation sum in Riverside Grove is at