Average annual temperature is 10.8 °C
Absolute maximum temperature: 32.8 °C
Absolute minimum temperature: -13.7 °C
Number of sunny days: 136 days
Number of rainy days: 207 days
Number of snow days: 22 days
Look at detailed online map of Rocky Grove
* Weather data for Rocky 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) | 14.1 | 18.9 | 17.4 | 27.8 | 31.3 | 32.8 | 31.5 | 30.9 | 31.9 | 27.0 | 16.3 | 14.7 |
| Average daytime temperature (°C) | 5.1 | 9.0 | 7.9 | 17.0 | 21.2 | 24.0 | 27.4 | 25.7 | 23.0 | 16.5 | 9.3 | 7.2 |
| Average temperature (°C) | 1.4 | 1.9 | 2.5 | 10.2 | 14.4 | 18.3 | 21.8 | 20.2 | 17.5 | 12.1 | 4.6 | 3.7 |
| Average night temperature (°C) | -1.3 | -2.8 | -1.5 | 4.6 | 8.1 | 13.3 | 17.2 | 15.8 | 13.2 | 8.5 | 1.0 | 1.0 |
| Absolute minimum temperature (°C) | -8.2 | -13.7 | -8.1 | -4.0 | 1.4 | 8.4 | 13.2 | 11.1 | 7.8 | 0.7 | -7.6 | -5.3 |
| 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) | 9.6 | 10.6 | 11.9 | 13.3 | 14.5 | 15.1 | 14.8 | 13.8 | 12.5 | 11.1 | 9.9 | 9.2 |
| 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) | 2.4 | 6.3 | 5.8 | 8.1 | 10.8 | 10.6 | 11.4 | 10.7 | 8.8 | 6.1 | 6.2 | 3.5 |
| Precipitation (mm) | 136 | 77 | 115 | 80 | 38 | 124 | 148 | 99 | 29 | 69 | 54 | 88 |
| Sunny days | 4 | 11 | 7 | 12 | 21 | 10 | 8 | 7 | 13 | 16 | 16 | 11 |
| Rainy days | 18 | 15 | 17 | 18 | 10 | 20 | 23 | 24 | 17 | 15 | 13 | 17 |
| Snow days | 9 | 2 | 7 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 3 |
The best time to visit Rocky Grove during the most sunny months:
The largest precipitation sum in Rocky Grove is at