Flagstaff weather by month & the best time to visit

🇺🇸 United States · alpine / mountain town · Mediterranean climate

The best time to visit Flagstaff is June — its sunniest month (Sunshine Score 99/100), with May and September close behind. Flagstaff averages about 3,666 hours of sunshine a year. Daytime highs around 29°C / 84°F and roughly 6 mm of rain in June.

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Sun hours / year

3,666

Sunniest month

June

Peak score

99/100

Rain / year

456 mm

Snow / year

≈1.1 m

Midday UV at peak

12 (extreme)

Population

70k

Elevation

2,133 m

When is the best time to visit Flagstaff?

For sunshine, the best time to visit Flagstaff is June, then May and September. The dullest month is January (0/100, 47 mm of rain). The full month-by-month picture is in the table below.

How sunny is Flagstaff?

Flagstaff is one of the sunniest places on Earth: about 3,666 hours of sunshine a year. 99 Sunshine Score points separate June (99) from January (0), so the month you pick matters. It ranks #18 of 580 destinations in United States for annual sunshine, above the national median of 2,279 hours. The year's 456 mm of rain spreads fairly evenly across the months, with no pronounced dry season.

Sunshine Score by month

See Flagstaff on the interactive sunshine globe →

Nearby places for sunshine

• Grand Canyon - Tusayan United States · 100 km · best in Jun · 3,647 h sun/yr
• Phoenix United States · 192 km · best in Apr · 3,833 h sun/yr
• Mesa United States · 204 km · best in Apr · 3,778 h sun/yr
• Boulder City United States · 302 km · best in Apr · 3,837 h sun/yr
• Las Vegas United States · 332 km · best in Apr · 3,742 h sun/yr
• Tucson United States · 343 km · best in Apr · 3,726 h sun/yr

Nearest destinations

• Prescott United States · 87 km · 3,728 h sun/yr · best in May
• Show Low United States · 181 km · 3,694 h sun/yr · best in Jun
• Page United States · 199 km · 3,711 h sun/yr · best in Apr