Spring (March–May): Average 35–53°F, dry and cool climate. March has more rainfall, but overall spring is drier. Common activities: Hiking, exploring desert landscapes. Suggested clothing: Jacket, long-sleeved shirt, thermal underwear.
Summer (June–August): Average 64–69°F, warm and dry climate with a large diurnal temperature range. Occasional afternoon thunderstorms. Common activities: Camping, stargazing, exploring national parks. Suggested clothing: Light long-sleeved shirt, shorts, light jacket.
Autumn (September–November): Average 50–60°F, dry and comfortable climate, warm days and cool nights. Common activities: Hiking, viewing fall foliage (though less pronounced than in eastern areas), enjoying local cuisine. Suggested clothing: Long-sleeved shirt, light jacket, comfortable shoes.
Winter (December–February): Average -34–35°F, cold and dry climate with infrequent snowfall. Common activities: Skiing (requires travel to nearby resorts), enjoying snow scenes. Suggested clothing: Heavy coat, hat, gloves, scarf, warm boots.
Flagstaff climatological average
Annual average temperature: approx. 48.2°F / Annual rainfall: approx. 657 mm / Summer humidity: 20%–30% / Rainiest month: March
Flagstaff monthly average temperature and precipitation
Month
Air temperature (°F)
Precipitation (mm)
January
29.3°F
107.1
February
30.2°F
90.5
March
35.6°F
139.2
April
45.9°F
24.6
May
54.1°F
15.8
June
63.9°F
16.6
July
70.3°F
41.1
August
66°F
86
September
60.6°F
32.7
October
49.8°F
32.9
November
36.1°F
24.3
December
33.3°F
46.5
Flagstaff weather for the next seven days
6/16
Tuesday
Partly Cloudy
85.9°F/60.2°F
6/17
Wednesday
Sunny
84.8°F/61.1°F
6/18
Thursday
Patchy rain nearby
82.7°F/62.3°F
6/19
Friday
Sunny
79.7°F/57.8°F
6/20
Saturday
Sunny
78°F/51.9°F
6/21
Sunday
Sunny
78.8°F/52.7°F
6/22
Monday
Sunny
82.9°F/54.1°F
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