Historical weather data, all-time temperature records, and monthly climate averages for Bismarck, ND. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 5th in Bismarck runs the full gamut — historically, highs on this date have swung from a balmy 79° back in 1991 to a brutal -1° low in 1996. On average, expect a cool 51° high and 26° low, with about a 1-in-8 chance of snow still in the picture.
Bismarck plays no games at the extremes: the thermometer has reached 112° in July and plunged to -44° in January, a swing of 156 degrees between all-time records. A single April storm in 2013 dropped 17.3 inches of snow, a reminder that spring here comes with an asterisk.
Bismarck peaks in late July with average highs around 85-86°, then bottoms out in early January near a frigid 20°. If you're chasing dry weather, aim for late summer and fall — the wettest stretch runs through mid-June, averaging nearly an inch a week.