Average data for 10 years
1 September
Sunday
+23°
+18°
2 September
Monday
+23°
+18°
3 September
Tuesday
+23°
+17°
4 September
Wednesday
+22°
+16°
5 September
Thursday
+23°
+17°
6 September
Friday
+22°
+17°
7 September
Saturday
+21°
+16°
8 September
Sunday
+20°
+15°
9 September
Monday
+21°
+15°
10 September
Tuesday
+21°
+16°
11 September
Wednesday
+21°
+15°
12 September
Thursday
+21°
+14°
13 September
Friday
+19°
+14°
14 September
Saturday
+20°
+14°
15 September
Sunday
+20°
+14°
16 September
Monday
+20°
+14°
17 September
Tuesday
+21°
+16°
18 September
Wednesday
+22°
+17°
19 September
Thursday
+22°
+17°
20 September
Friday
+21°
+14°
21 September
Saturday
+19°
+13°
22 September
Sunday
+20°
+14°
23 September
Monday
+20°
+14°
24 September
Tuesday
+20°
+15°
25 September
Wednesday
+20°
+14°
26 September
Thursday
+20°
+14°
27 September
Friday
+20°
+14°
28 September
Saturday
+21°
+15°
29 September
Sunday
+20°
+13°
30 September
Monday
+19°
+13°
Cities with similar weather in September
Hungary
Budapest
United States
Boston
United States
Seattle
Croatia
Zagreb
Spain
Bilbao
In September, the weather in Flagstaff is typically warm. Average daily high temperature in September is about 21 degrees above zero. On average, Flagstaff has 21 sunny, 6 rainy, and 3 partly cloudy days in September. The rains are usually moderate.