Average annual temperature is 14.8 °C
Absolute maximum temperature: 37.1 °C
Absolute minimum temperature: -6.7 °C
Number of sunny days: 186 days
Number of rainy days: 178 days
Number of snow days: 1 day
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) | 18.5 | 23.5 | 25.2 | 27.8 | 29.8 | 32.9 | 36.5 | 37.1 | 32.2 | 29.9 | 25.7 | 18.2 |
| Average daytime temperature (°C) | 10.4 | 14.1 | 14.6 | 20.2 | 24.6 | 28.8 | 31.1 | 29.8 | 27.8 | 21.3 | 15.0 | 11.0 |
| Average temperature (°C) | 6.1 | 7.8 | 8.4 | 13.6 | 18.3 | 22.1 | 25.1 | 24.0 | 21.4 | 15.7 | 9.1 | 6.0 |
| Average night temperature (°C) | 2.8 | 3.4 | 3.5 | 8.0 | 12.9 | 16.4 | 20.3 | 19.4 | 16.0 | 11.3 | 4.8 | 2.4 |
| Absolute minimum temperature (°C) | -4.9 | -6.4 | -6.7 | 0.4 | 4.3 | 11.2 | 16.1 | 13.9 | 12.1 | -1.7 | -4.6 | -6.2 |
| 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 | 12.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.9 | 10.8 | 12.0 | 13.2 | 14.2 | 14.7 | 14.5 | 13.6 | 12.4 | 11.2 | 10.2 | 9.6 |
| 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) | 4.8 | 7.1 | 7.9 | 9.7 | 10.5 | 11.2 | 11.3 | 10.6 | 10.7 | 7.6 | 7.7 | 6.1 |
| Precipitation (mm) | 139 | 86 | 152 | 112 | 53 | 101 | 100 | 71 | 15 | 79 | 52 | 99 |
| Sunny days | 11 | 16 | 18 | 17 | 16 | 15 | 9 | 12 | 16 | 19 | 22 | 15 |
| Rainy days | 19 | 12 | 13 | 13 | 15 | 15 | 22 | 19 | 14 | 12 | 8 | 16 |
| Snow days | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Royal during the most sunny months:
The largest precipitation sum in Royal is at