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The tables below display average monthly climate and weather indicators in Missoula Montana.
Temperature by: Fahrenheit / Centigrade
| Missoula Temperature |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Annual |
| Avg. Temperature |
22.7 |
29.2 |
35.8 |
44.2 |
51.8 |
60.0 |
66.8 |
65.8 |
55.7 |
44.2 |
32.4 |
23.4 |
44.3 |
| Avg. Max Temperature |
30.0 |
37.4 |
46.6 |
57.5 |
65.7 |
73.9 |
83.4 |
82.2 |
70.9 |
57.0 |
40.6 |
30.2 |
56.3 |
| Avg. Min Temperature |
15.4 |
20.9 |
24.9 |
30.9 |
37.9 |
46.1 |
50.1 |
49.2 |
40.4 |
31.3 |
24.2 |
16.4 |
32.3 |
| Days with Max Temp of 90 F or Higher |
0.0 |
0.0 |
0.0 |
0.0 |
< 0.5 |
3.0 |
9.0 |
9.0 |
1.0 |
0.0 |
0.0 |
0.0 |
22.0 |
| Days with Min Temp Below Freezing |
29.0 |
26.0 |
26.0 |
17.0 |
5.0 |
< 0.5 |
< 0.5 |
< 0.5 |
4.0 |
18.0 |
26.0 |
29.0 |
180 |
| | |
| Missoula Heating and Cooling |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Annual |
| Heating Degree Days |
1311 |
1002 |
905 |
624 |
409 |
179 |
65.0 |
81.0 |
303 |
645 |
978 |
1290 |
7792 |
| Cooling Degree Days |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
29.0 |
121 |
106 |
24.0 |
0.0 |
0.0 |
0.0 |
280 |
| | |
| Missoula Precipitation |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Annual |
| Precipitation (inches) |
1.2 |
0.8 |
1.0 |
1.0 |
1.8 |
1.8 |
0.9 |
1.2 |
1.1 |
0.7 |
0.8 |
1.2 |
13.5 |
| Days with Precipitation 0.01 inch or More |
14.0 |
10.0 |
11.0 |
10.0 |
12.0 |
12.0 |
7.0 |
7.0 |
8.0 |
8.0 |
12.0 |
13.0 |
124 |
| Monthly Snowfall (inches) |
12.3 |
7.3 |
6.0 |
2.1 |
0.7 |
< 0.05 |
< 0.05 |
< 0.05 |
< 0.05 |
0.8 |
6.2 |
11.3 |
46.7 |
| | |
| Other Missoula Weather Indicators |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Annual |
| Average Wind Speed |
5.1 |
5.6 |
6.7 |
7.6 |
7.4 |
7.2 |
6.9 |
6.7 |
6.0 |
5.1 |
5.1 |
4.8 |
6.2 |
| Clear Days |
2.0 |
3.0 |
3.0 |
4.0 |
5.0 |
6.0 |
15.0 |
14.0 |
10.0 |
7.0 |
2.0 |
2.0 |
75.0 |
| Partly Cloudy Days |
4.0 |
5.0 |
6.0 |
7.0 |
9.0 |
9.0 |
10.0 |
10.0 |
8.0 |
7.0 |
5.0 |
4.0 |
83.0 |
| Cloudy Days |
24.0 |
21.0 |
22.0 |
20.0 |
17.0 |
14.0 |
6.0 |
8.0 |
11.0 |
17.0 |
23.0 |
25.0 |
208 |
| Percent of Possible Sunshine |
33.0 |
44.0 |
54.0 |
57.0 |
59.0 |
63.0 |
81.0 |
77.0 |
69.0 |
55.0 |
34.0 |
29.0 |
55.0 |
| Avg. Relative Humidity |
61.5 |
80.5 |
74.5 |
65.5 |
61.5 |
63.0 |
60.5 |
53.5 |
56.5 |
62.0 |
68.0 |
78.5 |
81.0 |
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