Average annual temperature is 13.4 °C
Absolute maximum temperature: 34.1 °C
Absolute minimum temperature: -9.0 °C
Number of sunny days: 166 days
Number of rainy days: 192 days
Number of snow days: 7 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) | 17.0 | 23.6 | 24.5 | 28.6 | 30.4 | 33.4 | 33.6 | 33.5 | 34.1 | 29.0 | 22.8 | 17.3 |
| Average daytime temperature (°C) | 8.5 | 13.1 | 12.8 | 19.5 | 23.2 | 26.9 | 30.0 | 28.9 | 26.5 | 19.8 | 13.2 | 9.9 |
| Average temperature (°C) | 4.0 | 5.8 | 6.2 | 12.7 | 16.7 | 20.8 | 24.1 | 22.9 | 20.3 | 14.4 | 7.2 | 5.2 |
| Average night temperature (°C) | 0.6 | 0.9 | 1.4 | 6.8 | 11.1 | 15.4 | 19.4 | 18.0 | 15.1 | 10.1 | 2.8 | 1.8 |
| Absolute minimum temperature (°C) | -6.3 | -9.0 | -7.5 | -0.5 | 3.3 | 10.1 | 15.8 | 13.1 | 10.4 | 2.5 | -6.8 | -5.0 |
| 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 | 10.7 | 12.0 | 13.2 | 14.3 | 14.9 | 14.6 | 13.7 | 12.4 | 11.2 | 10.0 | 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) | 3.7 | 7.1 | 7.5 | 9.1 | 9.9 | 10.9 | 11.6 | 10.7 | 9.4 | 7.2 | 7.2 | 5.0 |
| Precipitation (mm) | 123 | 52 | 100 | 92 | 74 | 73 | 78 | 66 | 41 | 63 | 44 | 70 |
| Sunny days | 9 | 14 | 15 | 14 | 18 | 13 | 6 | 14 | 17 | 13 | 20 | 13 |
| Rainy days | 21 | 13 | 13 | 16 | 13 | 17 | 25 | 17 | 13 | 18 | 9 | 17 |
| Snow days | 1 | 1 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 |
The best time to visit Royal during the most sunny months:
The largest precipitation sum in Royal is at