Current Weather and Forecast in Flagstaff, AZ
Arizona, United States 🇺🇸
Live conditions are temporarily unavailable.
Explore Flagstaff's typical temperatures and climate below - Live data returns shortly.
About the weather in Flagstaff
Flagstaff has a semi-arid climate. July is the warmest month, with average highs of 83°, and January the coldest, when nights fall to around 23°. July brings the most rain, on about 12 days, while June is the sunniest, with 13.7 hours of sunshine a day. Over a whole year it rains on roughly 78 days.
Flagstaff climate guide: monthly averages, seasons and the best time to visit
Common questions
When is Flagstaff at its hottest?
July, averaging 83°F (29°C) by day and 60°F (16°C) overnight. The hottest single day in our 2015-2024 record for this location reached 96°F (36°C).
How sunny is Flagstaff?
11.0 hours a day averaged over the year, peaking in June at 13.7 hours.
Does it snow in Flagstaff?
Yes - about 23 days a year carry measurable snowfall, concentrated October through May.
What is the rainiest month in Flagstaff?
July, at 2.6 inches (66 mm) over about 12 days. June is the driest month, at 16 mm (0.6 in).
What is the best month to go to Flagstaff?
The best time to visit Flagstaff is generally April to June and September to October, when temperatures sit either side of the peak heat rather than in it. Daytime temperatures in that window sit near 70°F (21°C), with rain on about 5 days a month. For the same question asked the other way round, see where else is warm in April.
What is the coldest month in Flagstaff?
January, with highs of 40°F (5°C) and lows near 23°F (-5°C). The coldest day in the 2015-2024 record fell to -4°F (-20°C).
Is Flagstaff hot in summer?
July averages 83°F (29°C). Hot afternoons happen but extremes are not the norm.