Williston weather by month & the best time to visit
United States · small town · hot-summer continental climate
The best time to visit Williston is August — its sunniest month (Sunshine Score 87/100), with September and July close behind. Williston averages about 2,703 hours of sunshine a year. Daytime highs around 27°C / 81°F and roughly 42 mm of rain in August.
When is the best time to visit Williston?
For sunshine, the best time to visit Williston is August, then September and July. The dullest month is January (0/100, 16 mm of rain). The full month-by-month picture is in the table below.
How sunny is Williston?
Williston gets a lot of sun: around 2,703 hours a year. 87 Sunshine Score points separate August (87) from January (0), so the month you pick matters. It ranks #140 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 424 mm.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV |
|---|---|---|---|---|---|
| January | 0 | -6° / 21°F | -15° / 5°F | 16 mm | 1 |
| February | 0 | -4° / 25°F | -14° / 7°F | 13 mm | 2 |
| March | 0 | 4° / 39°F | -7° / 19°F | 20 mm | 3 |
| April | 30 | 12° / 54°F | -1° / 30°F | 32 mm | 4 |
| May | 76 | 19° / 66°F | 5° / 41°F | 66 mm | 6 |
| June | 80 | 24° / 75°F | 11° / 52°F | 81 mm | 7 |
| July | 85 | 29° / 84°F | 15° / 59°F | 53 mm | 7 |
| August | 87 | 27° / 81°F | 13° / 55°F | 42 mm | 6 |
| September | 87 | 21° / 70°F | 7° / 45°F | 41 mm | 4 |
| October | 22 | 11° / 52°F | 0° / 32°F | 28 mm | 2 |
| November | 0 | 3° / 37°F | -6° / 21°F | 15 mm | 1 |
| December | 0 | -4° / 25°F | -12° / 10°F | 17 mm | 1 |
Nearest destinations
Williston: questions and answers
What kind of destination is Williston?
Williston is a small town in United States at 707 m elevation with a hot-summer continental climate.
How many hours of sunshine does Williston get a year?
Williston gets about 2,703 hours of sunshine a year, at its best around August.
When is the best time to visit Williston?
The sunniest time to visit Williston is August, when the Sunshine Score peaks at 87/100 (with September and July close behind). Expect daytime highs around 27°C / 81°F.
What is the least sunny month in Williston?
January is the least sunny month in Williston, scoring 0/100 with about 16 mm of rain.
How strong is the sun in Williston?
The typical midday UV index in Williston peaks around 7 (high) in June, 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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