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The tables below display average monthly climate and weather indicators in Flagstaff Arizona.
Temperature by: Fahrenheit / Centigrade
| Flagstaff Temperature |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Annual |
| Avg. Temperature |
28.7 |
31.5 |
35.3 |
42.3 |
50.4 |
59.8 |
66.3 |
64.1 |
57.3 |
47.2 |
36.8 |
29.6 |
45.8 |
| Avg. Max Temperature |
42.2 |
45.3 |
49.2 |
57.8 |
67.4 |
78.2 |
81.9 |
79.3 |
73.2 |
63.4 |
51.1 |
43.3 |
61.0 |
| Avg. Min Temperature |
15.2 |
17.7 |
21.3 |
26.7 |
33.3 |
41.4 |
50.5 |
48.9 |
41.2 |
31.0 |
22.4 |
15.8 |
30.5 |
| Days with Max Temp of 90 F or Higher |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
1.0 |
2.0 |
< 0.5 |
< 0.5 |
0.0 |
0.0 |
0.0 |
3.0 |
| Days with Min Temp Below Freezing |
30.0 |
28.0 |
30.0 |
25.0 |
14.0 |
3.0 |
< 0.5 |
< 0.5 |
3.0 |
18.0 |
28.0 |
30.0 |
209 |
| | |
| Flagstaff Heating and Cooling |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Annual |
| Heating Degree Days |
1125 |
938 |
921 |
681 |
453 |
187 |
29.0 |
65.0 |
237 |
552 |
846 |
1097 |
7131 |
| Cooling Degree Days |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
31.0 |
70.0 |
38.0 |
6.0 |
0.0 |
0.0 |
0.0 |
145 |
| | |
| Flagstaff Precipitation |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Annual |
| Precipitation (inches) |
2.0 |
2.1 |
2.5 |
1.5 |
0.7 |
0.4 |
2.8 |
2.8 |
2.0 |
1.6 |
1.9 |
2.4 |
22.8 |
| Days with Precipitation 0.01 inch or More |
8.0 |
7.0 |
8.0 |
6.0 |
4.0 |
3.0 |
11.0 |
12.0 |
7.0 |
5.0 |
5.0 |
6.0 |
83.0 |
| Monthly Snowfall (inches) |
20.4 |
18.4 |
22.0 |
9.9 |
1.7 |
< 0.05 |
< 0.05 |
0.0 |
0.1 |
2.0 |
9.9 |
15.9 |
100 |
| | |
| Other Flagstaff Weather Indicators |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Annual |
| Average Wind Speed |
6.5 |
6.6 |
7.1 |
7.5 |
7.3 |
7.0 |
5.5 |
5.0 |
5.6 |
5.8 |
6.7 |
6.6 |
6.4 |
| Clear Days |
12.0 |
11.0 |
12.0 |
12.0 |
15.0 |
18.0 |
9.0 |
10.0 |
16.0 |
17.0 |
15.0 |
14.0 |
162 |
| Partly Cloudy Days |
6.0 |
6.0 |
8.0 |
9.0 |
9.0 |
8.0 |
13.0 |
13.0 |
10.0 |
7.0 |
7.0 |
6.0 |
102 |
| Cloudy Days |
12.0 |
11.0 |
12.0 |
9.0 |
7.0 |
4.0 |
9.0 |
8.0 |
5.0 |
7.0 |
8.0 |
11.0 |
102 |
| Percent of Possible Sunshine |
77.0 |
73.0 |
76.0 |
82.0 |
88.0 |
86.0 |
75.0 |
76.0 |
81.0 |
79.0 |
75.0 |
73.0 |
78.0 |
| Avg. Relative Humidity |
57.5 |
62.5 |
59.0 |
53.5 |
48.0 |
40.5 |
44.0 |
56.5 |
59.0 |
54.5 |
53.0 |
57.5 |
61.0 |
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