Average annual temperature is 13.4 °C
Absolute maximum temperature: 32.3 °C
Absolute minimum temperature: -9.5 °C
Number of sunny days: 150 days
Number of rainy days: 209 days
Number of snow days: 6 days
Look at detailed online map of Rollyson
* Weather data for Rollyson 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) | 21.4 | 22.7 | 23.4 | 29.2 | 27.8 | 31.3 | 32.3 | 30.7 | 31.0 | 27.8 | 23.1 | 19.0 |
| Average daytime temperature (°C) | 10.4 | 13.3 | 13.3 | 20.2 | 22.2 | 26.0 | 28.9 | 27.5 | 24.3 | 19.5 | 13.6 | 10.9 |
| Average temperature (°C) | 5.2 | 6.9 | 7.0 | 13.3 | 16.0 | 19.9 | 23.3 | 22.1 | 19.0 | 14.2 | 7.4 | 5.7 |
| Average night temperature (°C) | 1.7 | 2.2 | 2.0 | 7.5 | 10.6 | 14.3 | 18.8 | 17.7 | 14.7 | 9.9 | 2.7 | 1.9 |
| Absolute minimum temperature (°C) | -6.9 | -9.5 | -8.2 | 0.1 | 2.9 | 9.1 | 14.1 | 11.4 | 8.9 | 1.3 | -6.9 | -5.4 |
| 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 | 14.6 | 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) | 4.0 | 6.7 | 7.2 | 8.7 | 9.5 | 10.8 | 11.7 | 10.3 | 9.1 | 7.3 | 7.3 | 4.8 |
| Precipitation (mm) | 99 | 87 | 105 | 58 | 95 | 47 | 142 | 114 | 104 | 58 | 52 | 86 |
| Sunny days | 7 | 13 | 14 | 17 | 14 | 12 | 6 | 7 | 13 | 16 | 19 | 12 |
| Rainy days | 23 | 14 | 15 | 13 | 17 | 18 | 25 | 24 | 17 | 15 | 10 | 18 |
| Snow days | 1 | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 |
The best time to visit Rollyson during the most sunny months:
The largest precipitation sum in Rollyson is at