Average annual temperature is 11.3 °C
Absolute maximum temperature: 40.0 °C
Absolute minimum temperature: -23.3 °C
Number of sunny days: 247 days
Number of rainy days: 88 days
Number of snow days: 30 days
Look at detailed online map of Rockvale
* Weather data for Rockvale 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) | 15.1 | 15.4 | 20.3 | 28.5 | 28.6 | 35.1 | 40.0 | 36.1 | 35.8 | 29.8 | 23.7 | 18.1 |
| Average daytime temperature (°C) | 6.1 | 9.6 | 11.7 | 18.8 | 22.4 | 26.2 | 33.8 | 32.3 | 28.3 | 20.9 | 14.4 | 8.6 |
| Average temperature (°C) | -0.2 | 0.7 | 3.2 | 9.1 | 14.9 | 18.4 | 25.2 | 24.2 | 19.7 | 12.3 | 5.7 | 1.3 |
| Average night temperature (°C) | -4.6 | -5.4 | -3.0 | 1.2 | 7.8 | 11.0 | 16.5 | 16.4 | 11.9 | 5.1 | -0.2 | -3.2 |
| Absolute minimum temperature (°C) | -23.3 | -20.0 | -13.3 | -5.4 | 3.4 | 7.3 | 11.5 | 12.4 | 7.2 | -8.0 | -11.4 | -10.1 |
| 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 | 10.8 | 12.0 | 13.2 | 14.3 | 14.8 | 14.5 | 13.6 | 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) | 7.5 | 9.0 | 10.2 | 10.9 | 11.8 | 12.5 | 12.8 | 12.0 | 10.9 | 9.8 | 8.5 | 7.7 |
| Precipitation (mm) | 20 | 13 | 16 | 56 | 70 | 57 | 16 | 23 | 32 | 5 | 12 | 25 |
| Sunny days | 22 | 18 | 19 | 18 | 15 | 13 | 21 | 23 | 25 | 28 | 25 | 20 |
| Rainy days | 4 | 3 | 8 | 9 | 16 | 17 | 10 | 8 | 5 | 2 | 3 | 3 |
| Snow days | 5 | 7 | 4 | 3 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 8 |
The largest precipitation sum in Rockvale is at