Bismarck Weather History
North Dakota · US States · Weather data 1976–today
Bismarck sits 5211km from the equator, 514m above sea level. That combination gives it a climate with hot summers and cold, snowy winters (Hot-summer humid continental climate). Its record high is 41.4°C, set 2006-07-30, its record low -39.2°C, set 1990-12-30.
Data through August 4, 2026.
Frequently asked questions about the weather in Bismarck
What is the hottest temperature ever recorded in Bismarck?
The highest temperature in this record for Bismarck is 41.4°C, measured on 2006-07-30. That is a recorded daily value from Bismarck's own series covering 1976 to 2025, not an estimate or a regional average.
What is the coldest temperature ever recorded in Bismarck?
The lowest temperature in this record for Bismarck is -39.2°C, measured on 1990-12-30. Together with the heat record above, that spans the full range this city has actually experienced across 1976 to 2025.
How much rain does Bismarck get a year?
Bismarck averages 521mm of precipitation a year, spread across roughly 80 days with at least 1mm. That average is taken over 50 complete calendar years, so one exceptionally wet or dry year does not set the figure.
What was the wettest day on record in Bismarck?
On 1997-07-01, 80.5mm fell on Bismarck, the highest single-day total in this series. For scale, that is roughly 15% of what the city receives in an average full year, in one day.
How many hours of sunshine does Bismarck get a year?
Bismarck averages 3371 sunshine hours a year, which works out to about 9.2 hours a day across the whole year. Sunshine hours measure the time direct sunlight actually reaches the ground, not simply how long it is light.
How warm are summers and how cold are winters in Bismarck?
Across the summer months Bismarck averages a daytime high near 26.2°C, while winter nights average -13.2°C. The seasons here are set from Bismarck's position relative to the equator rather than a fixed northern-hemisphere calendar.
What is the strongest wind recorded in Bismarck?
The strongest wind speed recorded in Bismarck is 71 km/h, on 2022-04-13. That is the daily maximum sustained wind rather than the peak gust, which typically runs higher still.
