Weather in Flagstaff in September

The weather in Flagstaff in September varies radically. Daytime is relatively hot since temperatures get higher than 30 degrees, while the nights are much colder and there are no more than 11 degrees. Therefore, it is recommended to pack for both warm and chilly conditions
Avg Temp
11° - 30°
Avg Rainy Days
6
Avg Dry Days
24
Avg Snow Days
0
Full weather report for today ››

Weather forecast for the next 14 days ››

Weather Facts - Flagstaff in September

* The warmest temperature recorded in in September is 37°C
* The coldest temperature recorded in Flagstaff in September is 2°C
* The average rainfall in Flagstaff in September is 16 mm

Yearly Average for Flagstaff

Max Temp
Min Temp
Rainy Days
Jan.
10°
(-6°)
5
Feb.
14°
(-4°)
4
March
18°
(-1°)
4
April
22°
3°
4
May
28°
8°
3
June
33°
12°
2
July
35°
17°
7
August
33°
16°
8
Sep.
30°
11°
6
Oct.
23°
4°
4
Nov.
16°
(-2°)
4
Dec.
10°
(-7°)
5

Average Temperature in Flagstaff