Average annual temperature is 9.1 °C
Absolute maximum temperature: 37.6 °C
Absolute minimum temperature: -31.6 °C
Number of sunny days: 226 days
Number of rainy days: 100 days
Number of snow days: 39 days
Look at detailed online map of City of Roundup
* Weather data for City of Roundup 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) | 10.1 | 10.8 | 11.7 | 25.5 | 30.1 | 29.0 | 37.6 | 37.2 | 34.0 | 26.0 | 15.5 | 15.6 |
| Average daytime temperature (°C) | 4.1 | 4.1 | 2.6 | 14.3 | 23.5 | 23.5 | 30.6 | 31.0 | 25.8 | 14.2 | 10.7 | 7.7 |
| Average temperature (°C) | -1.8 | -2.7 | -3.6 | 6.1 | 16.0 | 17.5 | 23.1 | 23.2 | 18.3 | 7.4 | 4.0 | 1.5 |
| Average night temperature (°C) | -5.4 | -6.9 | -8.2 | 0.0 | 9.2 | 11.7 | 15.3 | 16.6 | 11.8 | 2.5 | -0.5 | -2.2 |
| Absolute minimum temperature (°C) | -18.7 | -31.6 | -17.2 | -6.7 | 3.6 | 5.6 | 8.7 | 11.8 | 7.2 | -18.1 | -7.6 | -9.9 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 8.0 |
| Daylight mean duration (h) | 9.1 | 10.3 | 11.9 | 13.6 | 15.0 | 15.7 | 15.4 | 14.1 | 12.6 | 10.9 | 9.4 | 8.7 |
| Daylight minimum duration (h) | 8.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 8.0 | 8.0 |
| Sunshine mean duration (h) | 6.2 | 6.7 | 7.4 | 10.2 | 11.3 | 11.1 | 13.1 | 11.2 | 10.2 | 7.0 | 6.7 | 6.2 |
| Precipitation (mm) | 19 | 31 | 25 | 30 | 43 | 121 | 6 | 23 | 41 | 31 | 6 | 2 |
| Sunny days | 22 | 19 | 15 | 16 | 13 | 7 | 22 | 23 | 22 | 19 | 23 | 25 |
| Rainy days | 1 | 3 | 0 | 11 | 18 | 23 | 9 | 8 | 8 | 9 | 6 | 4 |
| Snow days | 8 | 6 | 16 | 3 | 0 | 0 | 0 | 0 | 0 | 3 | 1 | 2 |
The best time to visit City of Roundup during the most sunny months:
Months with the longest average daylight duration in City of Roundup:
The largest precipitation sum in City of Roundup is at