Gillette weather by month & the best time to visit
United States · small town · semi-arid climate
The best time to visit Gillette is August — its sunniest month (Sunshine Score 90/100), with September and July close behind. Gillette averages about 2,808 hours of sunshine a year. Daytime highs around 30°C / 86°F and roughly 29 mm of rain in August.
When is the best time to visit Gillette?
For sunshine, the best time to visit Gillette is August, then September and July. The dullest month is January (0/100, 13 mm of rain). The full month-by-month picture is in the table below.
How sunny is Gillette?
Gillette gets a lot of sun: around 2,808 hours a year. 90 Sunshine Score points separate August (90) from January (0), so the month you pick matters. It ranks #116 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 May, carries about 46% of the annual 387 mm.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV |
|---|---|---|---|---|---|
| January | 0 | 2° / 36°F | -9° / 16°F | 13 mm | 1 |
| February | 0 | 2° / 36°F | -9° / 16°F | 17 mm | 2 |
| March | 8 | 9° / 48°F | -4° / 25°F | 24 mm | 3 |
| April | 44 | 14° / 57°F | 0° / 32°F | 45 mm | 5 |
| May | 74 | 19° / 66°F | 5° / 41°F | 79 mm | 7 |
| June | 86 | 26° / 79°F | 11° / 52°F | 53 mm | 8 |
| July | 88 | 32° / 90°F | 16° / 61°F | 39 mm | 9 |
| August | 90 | 30° / 86°F | 15° / 59°F | 29 mm | 8 |
| September | 90 | 24° / 75°F | 9° / 48°F | 29 mm | 6 |
| October | 45 | 14° / 57°F | 1° / 34°F | 32 mm | 3 |
| November | 0 | 7° / 45°F | -4° / 25°F | 14 mm | 2 |
| December | 0 | 1° / 34°F | -9° / 16°F | 13 mm | 1 |
Nearest destinations
Gillette: questions and answers
What kind of destination is Gillette?
Gillette is a small town in United States at 1,319 m elevation with a semi-arid climate.
How many hours of sunshine does Gillette get a year?
Gillette gets about 2,808 hours of sunshine a year, at its best around August.
When is the best time to visit Gillette?
The sunniest time to visit Gillette is August, when the Sunshine Score peaks at 90/100 (with September and July close behind). Expect daytime highs around 30°C / 86°F.
What is the least sunny month in Gillette?
January is the least sunny month in Gillette, scoring 0/100 with about 13 mm of rain.
How strong is the sun in Gillette?
The typical midday UV index in Gillette peaks around 9 (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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