Average annual temperature is 20.6 °C
Absolute maximum temperature: 40.4 °C
Absolute minimum temperature: -1.4 °C
Number of sunny days: 193 days
Number of rainy days: 172 days
Look at detailed online map of Riverton
* Weather data for Riverton 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) | 25.1 | 28.2 | 28.4 | 30.0 | 32.2 | 37.6 | 38.6 | 40.4 | 37.9 | 32.9 | 29.2 | 26.3 |
| Average daytime temperature (°C) | 17.4 | 19.5 | 22.6 | 23.9 | 28.9 | 33.9 | 35.5 | 37.9 | 33.1 | 27.7 | 19.7 | 17.2 |
| Average temperature (°C) | 12.4 | 13.4 | 16.4 | 18.3 | 23.4 | 27.6 | 29.6 | 31.8 | 27.1 | 21.3 | 14.2 | 11.3 |
| Average night temperature (°C) | 8.5 | 9.1 | 11.9 | 13.7 | 18.3 | 22.5 | 25.0 | 26.4 | 22.0 | 16.1 | 10.2 | 6.7 |
| Absolute minimum temperature (°C) | -0.5 | -1.4 | -1.4 | 8.5 | 10.9 | 19.7 | 21.8 | 21.2 | 17.7 | 7.0 | 1.9 | -1.0 |
| 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 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 |
| Daylight mean duration (h) | 10.3 | 11.0 | 12.0 | 13.0 | 13.8 | 14.2 | 14.0 | 13.3 | 12.4 | 11.4 | 10.5 | 10.1 |
| Daylight minimum duration (h) | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 | 10.0 |
| Sunshine mean duration (h) | 6.7 | 7.1 | 8.8 | 8.3 | 10.8 | 11.9 | 11.3 | 11.9 | 10.5 | 8.9 | 6.4 | 7.8 |
| Precipitation (mm) | 155 | 70 | 77 | 184 | 93 | 105 | 58 | 23 | 46 | 31 | 81 | 113 |
| Sunny days | 11 | 11 | 15 | 9 | 15 | 9 | 15 | 25 | 17 | 24 | 19 | 23 |
| Rainy days | 20 | 17 | 16 | 21 | 16 | 21 | 16 | 6 | 13 | 7 | 11 | 8 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Riverton during the most sunny months:
The largest precipitation sum in Riverton is at