Best Time to Visit Bismarck, North Dakota, USA
Bismarck is at its sunniest and driest in September.
The best time to visit Bismarck for sunny, dry weather is September — 1 month of the year fit our sunny profiles at this specific location. The drier stretch runs through September–March; the wetter half falls in April–August. At the city itself, monthly average temperatures range from -12.3°C / 9.9°F in January to 22.3°C / 72.1°F in July, with rainfall from 10 mm / 0.4 in (December) to 71 mm / 2.8 in (June). These are point-value climate normals sampled at Bismarck, North Dakota, United States of America's coordinates — usually more actionable for travellers than the country-wide average. Bismarck's climate is broadly strongly continental. The full month-by-month table below lets you match your travel window against our five weather profiles.
Recommended months
| Month | Temp | Rain | Feels like |
|---|---|---|---|
| September | 14.9°C58.8°F | 41 mm1.6″ | Sunny & Mild |
Frequently asked questions
When is the best time to visit Bismarck?
The best time to visit Bismarck for sunny, dry weather is September. At the city itself, the warmest month is July averaging 22.3°C / 72.1°F, and the driest is December with about 10 mm / 0.4 in of rain. These are point-value climate normals sampled at Bismarck's coordinates.
When is the rainy season in Bismarck?
The rainy season at Bismarck, North Dakota runs through April–August, when monthly rainfall exceeds the annual median of about 41 mm / 1.6 in. The wettest single month is June (71 mm / 2.8 in).
What is the driest month in Bismarck?
The driest month in Bismarck is December, averaging about 10 mm / 0.4 in of rainfall. Temperature that month averages -9.2°C / 15.4°F.
What months should I avoid visiting Bismarck?
The least comfortable months for travel to Bismarck — based on point-value climate at the city — are January, February, March, May, June, July, November, December. These are the wettest or coolest months at this location. Rainfall peaks at 71 mm / 2.8 in in June, and the coldest month averages -12.3°C / 9.9°F.
Is Bismarck climate different from United States of America overall?
Yes, usually. Our Bismarck figures are point-value climate normals sampled at the city itself, while our United States of America figures are area-weighted averages across the whole country. The two can diverge substantially in geographically diverse or elevation-varied countries. The month-by-month table below reflects Bismarck specifically — usually the more actionable data for a traveller planning to spend time in the city.