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Weather in Flagstaff, AZ · National Weather Service + NOAA

Flagstaff is snow country

Flagstaff has chilly, snowy winters and pleasant summers, with very little rain. A typical July afternoon reaches 84°, a January night drops to 16°, and about 90 inches of snow falls in a normal winter. Normal November highs come to 54°, and lows to 22°.

Winter 46°/16°Spring 62°/28°Summer 82°/47°Fall 65°/31°
Right now
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Sunrise 8:49 am · sunset 7:31 pm

Getting the latest forecast from the National Weather Service…

What stands out about Flagstaff’s weather

Read from 30 years of NOAA records. Each one opens the full story on the Climate page.

Climate →
Snow countryAbout 90 inches a winter, more than 351 of 352 Arizona towns.Among Arizona’s coldest wintersJanuary nights average 16°, colder than 459 of 467 Arizona towns.Cool summersJuly afternoons average 84°, cooler than 444 of 467 Arizona towns.Warming faster than mostThe last 30 years averaged 1.8° warmer than the 1900s, a bigger shift than 89% of U.S. towns.
A normal year

Where today sits in Flagstaff’s year

Typical highs and lows month by month, from 30 years of NOAA records.

Full climate →
Winter
46° / 16°
19 days with an inch or more of snow
Spring
62° / 28°
Last frost around Jun 4
Summer
82° / 47°
3 days reach 90° in a normal year
Fall now
65° / 31°
First frost around Sep 28
Pastthe usual first frost (Sep 28). Last frost next spring: Jun 4
Best months to be outside
JunJulAugSep
Highs of 62–84° and lows of 40° or more
How much snow does Flagstaff get?About 90 inches a winter.When is it wettest?August, with 3.1 inches.Is it warmer than it used to be?+1.8° vs. the 20th century.

Weather talk

Road reports, first frosts and storm memories from neighbors in Flagstaff.

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Forecast, conditions and alerts: National Weather Service. Climate: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000. Temperatures and rainfall come from NOAA’s gridded normals for Flagstaff itself (about a 3-mile square). Snow, frost dates and day counts: the NOAA station at Flagstaff Pulliam Airport, AZ (4 mi). Sunrise and sunset are calculated from the town’s position. Normals are 30-year averages, not a forecast.