Thief River Falls weather by month & the best time to visit
🇺🇸 United States · small town · hot-summer continental climate
The best time to visit Thief River Falls is August — its sunniest month (Sunshine Score 81/100), with September and July close behind. Thief River Falls averages about 2,527 hours of sunshine a year. Daytime highs around 26°C / 79°F and roughly 67 mm of rain in August.
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- Sun hours / year
- 2,527
- Sunniest month
- August
- Peak score
- 81/100
- Rain / year
- 577 mm
- Snow / year
- ≈1.4 m
- Midday UV at peak
- 7 (high)
- Population
- 9k
- Elevation
- 338 m
When is the best time to visit Thief River Falls?
For sunshine, the best time to visit Thief River Falls is August, then September 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 Thief River Falls?
Thief River Falls gets a lot of sun: around 2,527 hours a year. 81 Sunshine Score points separate August (81) from January (0), so the month you pick matters. It ranks #194 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 44% of the annual 577 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 | -7° / 19°F | -18° / 0°F | 14 mm | 2 |
| March | 0 | 2° / 36°F | -9° / 16°F | 27 mm | 3 |
| April | 29 | 12° / 54°F | -1° / 30°F | 38 mm | 4 |
| May | 73 | 19° / 66°F | 6° / 43°F | 78 mm | 5 |
| June | 75 | 24° / 75°F | 12° / 54°F | 104 mm | 6 |
| July | 80 | 28° / 82°F | 16° / 61°F | 74 mm | 7 |
| August | 81 | 26° / 79°F | 14° / 57°F | 67 mm | 6 |
| September | 81 | 21° / 70°F | 9° / 48°F | 67 mm | 4 |
| October | 21 | 11° / 52°F | 1° / 34°F | 55 mm | 2 |
| November | 0 | 2° / 36°F | -6° / 21°F | 18 mm | 1 |
| December | 0 | -6° / 21°F | -15° / 5°F | 21 mm | 0 |
See Thief River Falls on the interactive sunshine globe →
Nearby places for sunshine
- Fargo United States · 136 km · best in Aug · 2,543 h sun/yr
- Winnipeg Canada · 219 km · best in Aug · 2,491 h sun/yr
- Duluth United States · 329 km · best in Sep · 2,261 h sun/yr
- Bismarck United States · 372 km · best in Sep · 2,676 h sun/yr
- Minot United States · 378 km · best in Sep · 2,684 h sun/yr
- Sioux Lookout Canada · 386 km · best in Aug · 2,060 h sun/yr
Nearest destinations
- Grand Forks United States · 75 km · 2,551 h sun/yr · best in Sep
- Devils Lake United States · 202 km · 2,673 h sun/yr · best in Aug
- Fort Frances Canada · 213 km · 2,142 h sun/yr · best in Aug
- International Falls United States · 213 km · 2,142 h sun/yr · best in Aug
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