Grand Forks weather by month & the best time to visit
United States · small town · hot-summer continental climate
The best time to visit Grand Forks is September — its sunniest month (Sunshine Score 82/100), with August and July close behind. Grand Forks averages about 2,551 hours of sunshine a year. Daytime highs around 22°C / 72°F and roughly 65 mm of rain in September.
When is the best time to visit Grand Forks?
For sunshine, the best time to visit Grand Forks 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 Grand Forks?
Grand Forks gets a lot of sun: around 2,551 hours a year. 82 Sunshine Score points separate September (82) from January (0), so the month you pick matters. It ranks #187 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 45% of the annual 586 mm.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV |
|---|---|---|---|---|---|
| January | 0 | -9° / 16°F | -19° / -2°F | 14 mm | 1 |
| February | 0 | -6° / 21°F | -17° / 1°F | 14 mm | 2 |
| March | 0 | 3° / 37°F | -8° / 18°F | 28 mm | 3 |
| April | 36 | 13° / 55°F | 0° / 32°F | 38 mm | 4 |
| May | 78 | 20° / 68°F | 7° / 45°F | 84 mm | 5 |
| June | 75 | 25° / 77°F | 13° / 55°F | 104 mm | 6 |
| July | 80 | 29° / 84°F | 16° / 61°F | 77 mm | 7 |
| August | 81 | 27° / 81°F | 14° / 57°F | 69 mm | 6 |
| September | 82 | 22° / 72°F | 9° / 48°F | 65 mm | 4 |
| October | 28 | 12° / 54°F | 1° / 34°F | 52 mm | 2 |
| November | 0 | 3° / 37°F | -6° / 21°F | 19 mm | 1 |
| December | 0 | -6° / 21°F | -14° / 7°F | 22 mm | 1 |
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Grand Forks: questions and answers
What kind of destination is Grand Forks?
Grand Forks is a small town in United States with a hot-summer continental climate.
How many hours of sunshine does Grand Forks get a year?
Grand Forks gets about 2,551 hours of sunshine a year, at its best around September.
When is the best time to visit Grand Forks?
The sunniest time to visit Grand Forks is September, when the Sunshine Score peaks at 82/100 (with August and July close behind). Expect daytime highs around 22°C / 72°F.
What is the least sunny month in Grand Forks?
January is the least sunny month in Grand Forks, scoring 0/100 with about 14 mm of rain.
How strong is the sun in Grand Forks?
The typical midday UV index in Grand Forks peaks around 7 (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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