Bismarck, ND Weather & Climate Normals
Bismarck's real weather, in one number
Bismarck, ND scores 41/100 on this site's reading of NOAA's own 30-year normals: strongly seasonal. Comfortable weather is limited to a shorter window; summers, winters, or precipitation swing wide. 4 of the year's 12 months average between 55 and 75°F, the range this site counts as mild.
Bismarck's hottest and coldest months
Bismarck's hottest month is Jul, averaging 70°F; its coldest is Jan, averaging 13°F, a 56.9°F swing across the year, one of the widest gaps in this dataset.
Bismarck's weather across the year
| Month | Avg high | Avg low | Precip |
|---|---|---|---|
| Jan | 22°F | 4°F | 0.54in |
| Feb | 27°F | 7°F | 0.52in |
| Mar | 40°F | 18°F | 0.92in |
| Apr | 54°F | 29°F | 1.63in |
| May | 66°F | 43°F | 2.56in |
| Jun | 76°F | 53°F | 3.32in |
| Jul | 82°F | 58°F | 3.18in |
| Aug | 80°F | 56°F | 2.7in |
| Sep | 71°F | 46°F | 1.92in |
| Oct | 56°F | 34°F | 1.58in |
| Nov | 40°F | 20°F | 0.74in |
| Dec | 27°F | 10°F | 0.74in |
Jun, Jul, Aug, and Sep are the best time to see Bismarck at its mildest; the rest of the year, plan around Jan's cold.
Rain and snow in Bismarck
Over a typical year, Bismarck sees about 20.35in of precipitation a year across roughly 105 days with measurable rain or snow. That station has no snowfall reading, so none is shown rather than assumed.
Where Bismarck ranks
Bismarck ranks 4348 of 4876 US cities in this dataset for comfort score, and 5 of 14 within ND. About 77,772 people live there.
If you need tomorrow's forecast, not the 30-year average
Everything above is a 30-year average from Bismarck 2.4 Nnw, ND US, 1.9 miles from Bismarck, not a prediction for any specific day.
More on how this is worked out
Why some cities show no snow or rain figure · How the comfort score is calculated