Average annual temperature is 10.4 °C
Absolute maximum temperature: 30.5 °C
Absolute minimum temperature: -15.5 °C
Number of sunny days: 146 days
Number of rainy days: 194 days
Number of snow days: 25 days
Look at detailed online map of Bismarck
* Weather data for Bismarck 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) | 16.9 | 17.5 | 19.4 | 25.1 | 23.9 | 27.9 | 30.5 | 29.0 | 29.7 | 23.3 | 16.9 | 14.1 |
| Average daytime temperature (°C) | 6.0 | 8.9 | 9.3 | 16.9 | 18.0 | 21.6 | 26.2 | 25.3 | 21.1 | 16.1 | 9.4 | 6.8 |
| Average temperature (°C) | 1.8 | 3.4 | 3.3 | 10.6 | 12.6 | 16.7 | 21.2 | 19.9 | 16.2 | 11.6 | 4.4 | 2.9 |
| Average night temperature (°C) | -1.0 | -1.1 | -0.9 | 5.6 | 8.0 | 12.7 | 17.4 | 15.8 | 12.5 | 8.1 | 1.0 | 0.1 |
| Absolute minimum temperature (°C) | -9.6 | -15.5 | -12.0 | -2.0 | 0.1 | 8.9 | 13.5 | 10.8 | 7.9 | -0.6 | -9.9 | -6.6 |
| 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) | 9.8 | 10.7 | 12.0 | 13.2 | 14.3 | 14.9 | 14.6 | 13.7 | 12.4 | 11.2 | 10.0 | 9.5 |
| 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) | 4.7 | 7.0 | 7.7 | 9.0 | 10.3 | 10.8 | 12.1 | 10.6 | 9.1 | 7.6 | 7.2 | 4.6 |
| Precipitation (mm) | 84 | 77 | 90 | 85 | 102 | 102 | 69 | 84 | 132 | 50 | 53 | 98 |
| Sunny days | 5 | 12 | 10 | 14 | 14 | 13 | 7 | 9 | 16 | 13 | 19 | 14 |
| Rainy days | 18 | 12 | 15 | 15 | 17 | 17 | 24 | 22 | 14 | 18 | 9 | 13 |
| Snow days | 8 | 4 | 6 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 4 |
The best time to visit Bismarck during the most sunny months:
The largest precipitation sum in Bismarck is at