Dillon September Weather
Averages and records for weather in
Dillon, Montana in the month of September.
Typical Dillon September Weather
1991–2020
|
| Average daily high |
71.5 °F |
| Average daily low |
40.8 °F |
| Average monthly precipitation |
1.0 inches |
| Daily chance of precipitation |
19.9% |
Note: Daily averages are a moving average which includes 14 days before and after
| Day |
Average (°F) |
Record (°F) |
| High |
Low |
High |
Low |
| September 1 |
77.8 |
44.8 |
92 |
31 |
| September 2 |
77.5 |
44.6 |
93 |
25 |
| September 3 |
77.0 |
44.4 |
97 |
30 |
| September 4 |
76.5 |
44.2 |
92 |
30 |
| September 5 |
76.0 |
43.9 |
92 |
27 |
| September 6 |
75.5 |
43.5 |
93 |
29 |
| September 7 |
75.0 |
43.2 |
91 |
26 |
| September 8 |
74.5 |
42.9 |
92 |
25 |
| September 9 |
74.0 |
42.6 |
92 |
23 |
| September 10 |
73.6 |
42.3 |
88 |
29 |
| September 11 |
73.2 |
42.0 |
90 |
26 |
| September 12 |
72.8 |
41.8 |
91 |
22 |
| September 13 |
72.4 |
41.5 |
90 |
22 |
| September 14 |
72.0 |
41.2 |
91 |
22 |
| September 15 |
71.7 |
40.9 |
92 |
24 |
| September 16 |
71.3 |
40.6 |
87 |
20 |
| September 17 |
70.8 |
40.4 |
86 |
14 |
| September 18 |
70.3 |
40.1 |
89 |
17 |
| September 19 |
69.7 |
39.7 |
88 |
16 |
| September 20 |
69.0 |
39.3 |
85 |
10 |
| September 21 |
68.4 |
38.8 |
86 |
24 |
| September 22 |
68.0 |
38.5 |
86 |
24 |
| September 23 |
67.6 |
38.3 |
88 |
22 |
| September 24 |
67.2 |
38.0 |
87 |
9 |
| September 25 |
66.7 |
37.7 |
87 |
17 |
| September 26 |
66.2 |
37.3 |
87 |
16 |
| September 27 |
65.5 |
36.9 |
84 |
20 |
| September 28 |
64.9 |
36.5 |
86 |
21 |
| September 29 |
64.5 |
36.2 |
86 |
11 |
| September 30 |
64.0 |
35.8 |
85 |
15 |
Weather Station Details
| Years |
Station |
Coordinates |
| 1941–2024 |
Dillon Airport |
location |
| 1895–1940 |
University of Montana Western |
location |