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.
Jump to: month-by-month table · nearby alternatives · embed this data
- Sun hours / year
- 3,837
- Sunniest month
- April
- Peak score
- 99/100
- Rain / year
- 147 mm
- Midday UV at peak
- 10 (very high)
- Population
- 16k
- Elevation
- 653 m
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 |
See Boulder City on the interactive sunshine globe →
Nearby places for sunshine
- Las Vegas United States · 30 km · best in Apr · 3,742 h sun/yr
- Grand Canyon - Tusayan United States · 244 km · best in Jun · 3,647 h sun/yr
- Palm Springs United States · 279 km · best in Apr · 3,777 h sun/yr
- Ontario United States · 326 km · best in May · 3,804 h sun/yr
- Mexicali Mexico · 370 km · best in Mar · 3,841 h sun/yr
- Phoenix United States · 382 km · best in Apr · 3,833 h sun/yr
Nearest destinations
- Lake Havasu City United States · 160 km · 3,866 h sun/yr · best in Apr
- St George United States · 171 km · 3,575 h sun/yr · best in May
- Cedar City United States · 250 km · 3,577 h sun/yr · best in Jun
- Prescott United States · 264 km · 3,728 h sun/yr · best in May
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
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