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.
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- Sun hours / year
- 2,551
- Sunniest month
- September
- Peak score
- 82/100
- Rain / year
- 586 mm
- Snow / year
- ≈1.3 m
- Midday UV at peak
- 7 (high)
- Population
- 57k
- Elevation
- 255 m
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 |
See Grand Forks on the interactive sunshine globe →
Nearby places for sunshine
- Fargo United States · 118 km · best in Aug · 2,543 h sun/yr
- Winnipeg Canada · 218 km · best in Aug · 2,491 h sun/yr
- Bismarck United States · 299 km · best in Sep · 2,676 h sun/yr
- Minot United States · 307 km · best in Sep · 2,684 h sun/yr
- Duluth United States · 394 km · best in Sep · 2,261 h sun/yr
- Sioux Lookout Canada · 453 km · best in Aug · 2,060 h sun/yr
Nearest destinations
- Thief River Falls United States · 75 km · 2,527 h sun/yr · best in Aug
- Devils Lake United States · 130 km · 2,673 h sun/yr · best in Aug
- Jamestown United States · 160 km · 2,671 h sun/yr · best in Sep
- Fort Frances Canada · 287 km · 2,142 h sun/yr · best in Aug
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