Boulder City weather by month & the best time to visit
United States · small town · hot desert climate
The best time to visit Boulder City is April — its sunniest month (Sunshine Score 99/100), with March and October close behind. Boulder City averages about 3,837 hours of sunshine a year. Daytime highs around 27°C / 81°F and roughly 8 mm of rain in April.
When is the best time to visit Boulder City?
For sunshine, the best time to visit Boulder City is April, then March and October. The dullest month is July (0/100, 15 mm of rain). The full month-by-month picture is in the table below.
How sunny is Boulder City?
Boulder City is one of the sunniest places on Earth: about 3,837 hours of sunshine a year. 99 Sunshine Score points separate April (99) from July (0), so the month you pick matters. It ranks #4 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 January, carries about 40% of the annual 147 mm.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV |
|---|---|---|---|---|---|
| January | 48 | 14° / 57°F | 2° / 36°F | 18 mm | 3 |
| February | 72 | 17° / 63°F | 3° / 37°F | 23 mm | 4 |
| March | 98 | 22° / 72°F | 7° / 45°F | 12 mm | 6 |
| April | 99 | 27° / 81°F | 11° / 52°F | 8 mm | 8 |
| May | 90 | 33° / 91°F | 16° / 61°F | 3 mm | 9 |
| June | 30 | 39° / 102°F | 22° / 72°F | 1 mm | 10 |
| July | 0 | 42° / 108°F | 26° / 79°F | 15 mm | 10 |
| August | 19 | 40° / 104°F | 25° / 77°F | 15 mm | 10 |
| September | 59 | 36° / 97°F | 21° / 70°F | 9 mm | 8 |
| October | 98 | 28° / 82°F | 14° / 57°F | 13 mm | 6 |
| November | 98 | 20° / 68°F | 7° / 45°F | 12 mm | 4 |
| December | 40 | 13° / 55°F | 2° / 36°F | 18 mm | 2 |
Nearest destinations
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Head-to-head
How Boulder City compares month by month: Boulder City vs Las Vegas · Boulder City vs Grand Canyon - Tusayan · Boulder City vs Palm Springs · all comparisons
Boulder City: questions and answers
What kind of destination is Boulder City?
Boulder City is a small town in United States at 653 m elevation with a hot desert climate.
How many hours of sunshine does Boulder City get a year?
Boulder City gets about 3,837 hours of sunshine a year, at its best around April.
When is the best time to visit Boulder City?
The sunniest time to visit Boulder City is April, when the Sunshine Score peaks at 99/100 (with March and October close behind). Expect daytime highs around 27°C / 81°F.
What is the least sunny month in Boulder City?
July is the least sunny month in Boulder City, scoring 0/100 with about 15 mm of rain.
How strong is the sun in Boulder City?
The typical midday UV index in Boulder City peaks around 10 (very high) in June, easing to about 2 (low) in December. Month-by-month midday UV values are in the UV column of the table on this page.
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