Average annual temperature is 18.9 °C
Absolute maximum temperature: 45.3 °C
Absolute minimum temperature: -0.9 °C
Number of sunny days: 315 days
Number of rainy days: 50 days
Look at detailed online map of Bismarck (historical)
* Weather data for Bismarck (historical) 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) | 15.7 | 21.1 | 21.8 | 34.8 | 36.9 | 38.7 | 45.3 | 41.4 | 38.5 | 34.1 | 28.6 | 20.9 |
| Average daytime temperature (°C) | 12.5 | 15.1 | 16.1 | 26.4 | 29.7 | 32.2 | 41.0 | 36.7 | 32.9 | 27.5 | 19.6 | 16.3 |
| Average temperature (°C) | 7.6 | 9.1 | 10.2 | 18.8 | 22.0 | 24.2 | 33.5 | 29.6 | 25.7 | 20.7 | 13.6 | 10.8 |
| Average night temperature (°C) | 3.6 | 4.1 | 5.8 | 11.7 | 15.0 | 17.2 | 25.9 | 23.0 | 19.3 | 14.0 | 8.2 | 5.9 |
| Absolute minimum temperature (°C) | -0.9 | -0.2 | -0.1 | 1.0 | 7.4 | 12.2 | 20.0 | 18.4 | 14.8 | 5.7 | 2.9 | 2.3 |
| 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 | 9.0 |
| Daylight mean duration (h) | 10.1 | 10.9 | 12.0 | 13.1 | 14.0 | 14.5 | 14.2 | 13.4 | 12.4 | 11.3 | 10.3 | 9.9 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 | 9.0 |
| Sunshine mean duration (h) | 7.3 | 9.3 | 9.6 | 12.0 | 12.7 | 13.2 | 13.2 | 11.4 | 11.0 | 10.4 | 9.0 | 8.2 |
| Precipitation (mm) | 68 | 12 | 36 | 0 | 0 | 7 | 0 | 48 | 25 | 1 | 3 | 8 |
| Sunny days | 20 | 22 | 20 | 30 | 30 | 27 | 31 | 25 | 25 | 29 | 28 | 28 |
| Rainy days | 11 | 6 | 11 | 0 | 1 | 3 | 0 | 6 | 5 | 2 | 2 | 3 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Bismarck (historical) is at