Places › Flagstaff, AZ › August

Flagstaff in August

A good month — score 79 of 100

Typical August days in Flagstaff reach about 79°F with nights near 51°F; rain is frequent — about 13 days see some rain, usually in showers.

What to pack for Flagstaff in August

• A light jacket or fleece for evenings.
• Layers — afternoons run about 29° warmer than mornings.
• A waterproof shell — rain falls on about 13 days in a typical August.

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August vs. the alternatives

The whole year in Flagstaff

Averages are the 1991–2020 climate normals (NOAA National Centers for Environmental Information) for the station named on each page. Rain days = days with at least 0.01 in of precipitation. Daylight is computed for the middle of the month.