Average annual temperature is 6.5 °C
Absolute maximum temperature: 34.7 °C
Absolute minimum temperature: -29.4 °C
Number of sunny days: 226 days
Number of rainy days: 97 days
Number of snow days: 42 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) | 2.5 | 5.1 | 0.0 | 16.2 | 28.1 | 32.4 | 33.8 | 32.9 | 34.7 | 28.0 | 12.3 | 12.8 |
| Average daytime temperature (°C) | -5.5 | -2.7 | -5.4 | 6.9 | 22.6 | 26.9 | 27.5 | 27.7 | 23.5 | 12.7 | 5.5 | 3.0 |
| Average temperature (°C) | -9.3 | -8.2 | -9.4 | 1.3 | 15.7 | 21.1 | 20.9 | 21.4 | 17.4 | 7.3 | 0.3 | -1.7 |
| Average night temperature (°C) | -12.5 | -12.9 | -13.0 | -3.2 | 9.1 | 15.3 | 15.1 | 16.1 | 12.6 | 2.9 | -3.7 | -5.2 |
| Absolute minimum temperature (°C) | -27.9 | -29.4 | -21.9 | -15.4 | -2.9 | 10.3 | 9.2 | 11.7 | 8.1 | -15.5 | -13.0 | -11.2 |
| 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) | 9.0 | 10.3 | 11.9 | 13.6 | 15.0 | 15.8 | 15.4 | 14.2 | 12.6 | 10.9 | 9.4 | 8.6 |
| 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) | 3.8 | 7.1 | 7.6 | 9.7 | 11.6 | 12.7 | 13.3 | 11.0 | 9.7 | 7.6 | 6.8 | 5.5 |
| Precipitation (mm) | 10 | 15 | 47 | 22 | 61 | 109 | 63 | 42 | 88 | 37 | 4 | 22 |
| Sunny days | 26 | 19 | 13 | 18 | 17 | 12 | 19 | 18 | 19 | 19 | 25 | 21 |
| Rainy days | 2 | 1 | 2 | 7 | 14 | 18 | 12 | 13 | 11 | 9 | 4 | 4 |
| Snow days | 3 | 8 | 16 | 5 | 0 | 0 | 0 | 0 | 0 | 3 | 1 | 6 |
The best time to visit Bismarck during the most sunny months:
Months with the longest average daylight duration in Bismarck:
The largest precipitation sum in Bismarck is at