Average annual temperature is 10.6 °C
Absolute maximum temperature: 32.4 °C
Absolute minimum temperature: -20.1 °C
Number of sunny days: 142 days
Number of rainy days: 207 days
Number of snow days: 16 days
Look at detailed online map of Royal
* Weather data for Royal 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) | 14.2 | 16.4 | 15.1 | 28.8 | 29.7 | 32.2 | 32.4 | 29.0 | 32.0 | 28.2 | 17.3 | 13.4 |
| Average daytime temperature (°C) | 5.2 | 7.0 | 7.9 | 17.3 | 20.7 | 24.2 | 28.0 | 25.4 | 22.9 | 17.3 | 8.8 | 6.8 |
| Average temperature (°C) | 1.8 | 0.9 | 2.3 | 10.6 | 13.6 | 18.3 | 22.4 | 20.1 | 17.5 | 12.4 | 3.8 | 2.9 |
| Average night temperature (°C) | -1.1 | -3.7 | -1.9 | 5.2 | 6.9 | 13.2 | 17.8 | 15.7 | 13.1 | 8.5 | 0.0 | 0.3 |
| Absolute minimum temperature (°C) | -7.2 | -20.1 | -7.9 | -3.5 | 0.2 | 7.6 | 13.9 | 11.0 | 7.0 | 1.2 | -6.1 | -5.7 |
| 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 | 14.9 | 13.8 | 12.5 | 11.1 | 9.9 | 9.2 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 14.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 3.4 | 6.0 | 6.7 | 8.5 | 12.2 | 11.0 | 11.6 | 10.3 | 9.0 | 7.4 | 7.1 | 3.7 |
| Precipitation (mm) | 96 | 57 | 93 | 99 | 44 | 97 | 126 | 139 | 117 | 96 | 47 | 132 |
| Sunny days | 8 | 12 | 8 | 16 | 20 | 10 | 4 | 8 | 15 | 13 | 16 | 12 |
| Rainy days | 20 | 12 | 18 | 14 | 11 | 20 | 27 | 23 | 15 | 18 | 13 | 16 |
| Snow days | 3 | 4 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 3 |
The best time to visit Royal during the most sunny months:
The largest precipitation sum in Royal is at