Bismarck weather by month & the best time to visit
United States · small town · hot-summer continental climate
The best time to visit Bismarck is September — its sunniest month (Sunshine Score 86/100), with August and July close behind. Bismarck averages about 2,676 hours of sunshine a year. Daytime highs around 23°C / 73°F and roughly 49 mm of rain in September.
When is the best time to visit Bismarck?
For sunshine, the best time to visit Bismarck is September, then August and July. The dullest month is January (0/100, 14 mm of rain). The full month-by-month picture is in the table below.
How sunny is Bismarck?
Bismarck gets a lot of sun: around 2,676 hours a year. 86 Sunshine Score points separate September (86) from January (0), so the month you pick matters. It ranks #150 of 580 destinations in United States for annual sunshine, above the national median of 2,279 hours. Rain has a clear season: the wettest stretch, around June, carries about 47% of the annual 500 mm.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV |
|---|---|---|---|---|---|
| January | 0 | -5° / 23°F | -14° / 7°F | 14 mm | 1 |
| February | 0 | -3° / 27°F | -13° / 9°F | 13 mm | 2 |
| March | 0 | 5° / 41°F | -6° / 21°F | 24 mm | 3 |
| April | 37 | 13° / 55°F | 0° / 32°F | 38 mm | 4 |
| May | 81 | 20° / 68°F | 7° / 45°F | 77 mm | 6 |
| June | 78 | 26° / 79°F | 13° / 55°F | 93 mm | 7 |
| July | 83 | 30° / 86°F | 17° / 63°F | 64 mm | 8 |
| August | 84 | 29° / 84°F | 15° / 59°F | 57 mm | 6 |
| September | 86 | 23° / 73°F | 9° / 48°F | 49 mm | 5 |
| October | 37 | 13° / 55°F | 1° / 34°F | 37 mm | 3 |
| November | 0 | 4° / 39°F | -5° / 23°F | 14 mm | 1 |
| December | 0 | -3° / 27°F | -11° / 12°F | 20 mm | 1 |
Nearest destinations
Head-to-head
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Bismarck: questions and answers
What kind of destination is Bismarck?
Bismarck is a small town in United States at 500 m elevation with a hot-summer continental climate.
How many hours of sunshine does Bismarck get a year?
Bismarck gets about 2,676 hours of sunshine a year, at its best around September.
When is the best time to visit Bismarck?
The sunniest time to visit Bismarck is September, when the Sunshine Score peaks at 86/100 (with August and July close behind). Expect daytime highs around 23°C / 73°F.
What is the least sunny month in Bismarck?
January is the least sunny month in Bismarck, scoring 0/100 with about 14 mm of rain.
How strong is the sun in Bismarck?
The typical midday UV index in Bismarck peaks around 8 (very high) in July, easing to about 1 (low) in January. Month-by-month midday UV values are in the UV column of the table on this page.
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