Average annual temperature is 12.4 °C
Absolute maximum temperature: 39.2 °C
Absolute minimum temperature: -22.5 °C
Number of sunny days: 230 days
Number of rainy days: 117 days
Number of snow days: 18 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) | 12.6 | 15.9 | 22.5 | 28.5 | 30.7 | 33.4 | 37.6 | 39.2 | 36.7 | 31.2 | 20.4 | 13.2 |
| Average daytime temperature (°C) | 1.9 | 6.0 | 10.2 | 19.3 | 25.0 | 29.3 | 31.0 | 32.0 | 29.2 | 20.0 | 13.3 | 6.6 |
| Average temperature (°C) | -2.9 | -1.4 | 3.3 | 11.8 | 18.7 | 23.0 | 25.0 | 25.5 | 22.4 | 13.6 | 6.7 | 1.8 |
| Average night temperature (°C) | -6.5 | -6.2 | -1.8 | 5.6 | 13.2 | 17.2 | 19.6 | 19.9 | 16.5 | 8.3 | 1.8 | -1.8 |
| Absolute minimum temperature (°C) | -22.5 | -20.5 | -8.1 | -4.5 | 2.9 | 11.5 | 14.0 | 13.3 | 9.3 | -6.8 | -5.8 | -7.2 |
| 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 | 15.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.7 | 10.7 | 12.0 | 13.3 | 14.4 | 15.0 | 14.7 | 13.7 | 12.5 | 11.1 | 10.0 | 9.4 |
| 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) | 6.2 | 8.4 | 8.5 | 10.8 | 10.9 | 12.3 | 12.2 | 11.8 | 10.6 | 8.3 | 7.4 | 5.0 |
| Precipitation (mm) | 38 | 34 | 16 | 18 | 48 | 103 | 81 | 42 | 16 | 48 | 23 | 58 |
| Sunny days | 21 | 21 | 22 | 25 | 11 | 15 | 9 | 20 | 23 | 20 | 24 | 19 |
| Rainy days | 4 | 4 | 7 | 4 | 20 | 15 | 22 | 11 | 7 | 10 | 3 | 10 |
| Snow days | 6 | 3 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 3 | 2 |
The best time to visit Riverton during the most sunny months:
The largest precipitation sum in Riverton is at