Average annual temperature is 14.4 °C
Absolute maximum temperature: 39.6 °C
Absolute minimum temperature: -11.4 °C
Number of sunny days: 206 days
Number of rainy days: 157 days
Number of snow days: 2 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) | 19.4 | 19.3 | 22.0 | 27.9 | 31.2 | 38.3 | 37.4 | 39.6 | 32.6 | 29.5 | 27.0 | 17.2 |
| Average daytime temperature (°C) | 8.7 | 11.6 | 13.1 | 20.7 | 26.1 | 30.0 | 31.3 | 30.1 | 27.6 | 20.6 | 14.8 | 10.8 |
| Average temperature (°C) | 3.5 | 5.3 | 6.7 | 13.4 | 19.2 | 23.4 | 25.3 | 24.5 | 21.2 | 15.1 | 8.7 | 6.0 |
| Average night temperature (°C) | 0.0 | 0.6 | 2.3 | 7.6 | 13.5 | 17.5 | 20.4 | 20.3 | 16.2 | 11.0 | 4.3 | 2.7 |
| Absolute minimum temperature (°C) | -11.4 | -10.1 | -7.5 | 0.4 | 5.6 | 11.3 | 15.8 | 13.6 | 11.1 | -2.7 | -5.4 | -5.2 |
| 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 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.9 | 10.8 | 12.0 | 13.2 | 14.2 | 14.8 | 14.5 | 13.6 | 12.4 | 11.2 | 10.1 | 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) | 5.3 | 7.1 | 7.2 | 10.1 | 10.9 | 12.6 | 11.3 | 10.1 | 10.5 | 7.5 | 7.6 | 5.8 |
| Precipitation (mm) | 65 | 73 | 231 | 32 | 90 | 41 | 111 | 237 | 32 | 74 | 20 | 73 |
| Sunny days | 18 | 17 | 16 | 20 | 16 | 16 | 11 | 12 | 18 | 19 | 25 | 18 |
| Rainy days | 12 | 11 | 15 | 10 | 15 | 14 | 20 | 19 | 12 | 12 | 5 | 12 |
| Snow days | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
The best time to visit Royal during the most sunny months:
The largest precipitation sum in Royal is at