Places › Bozeman, MT › September
Bozeman in September
One of the best months — score 96 of 100
Typical September days in Bozeman reach about 73°F with nights near 40°F.
Avg high
73°F
1991–2020 normal
Avg low
40°F
1991–2020 normal
Rain total
1.00 in
in a typical September
Rain days
7
days with at least 0.01 in
Daylight
12h 29m
at mid-September, computed
What to pack for Bozeman in September
- An insulated coat, plus a hat and gloves for mornings.
- Layers — afternoons run about 34° warmer than mornings.
- A compact rain layer — about 7 days see rain in a typical September.
Every packing line is triggered by a number on this page — the rules are on How we pick.
September vs. the alternatives
The whole year in Bozeman
JAN
32°F
Rain 7 days
Daylight 9h 03mFEB
36°F
Rain 7 days
Daylight 10h 17mMAR
46°F
Rain 8 days
Daylight 11h 46mAPR
55°F
Rain 13 days
Daylight 13h 27mMAY
65°F
Rain 13 days
Daylight 14h 53mJUN
74°F
Rain 13 days
Daylight 15h 41mJUL
85°F
Rain 8 days
Daylight 15h 22mAUG
84°F
Rain 8 days
Daylight 14h 07mSEP
73°F
★ Best
Rain 7 days
Daylight 12h 29mOCT
58°F
Rain 9 days
Daylight 10h 51mNOV
42°F
Rain 8 days
Daylight 9h 25mDEC
32°F
Rain 7 days
Daylight 8h 42m
32°F
Rain 7 days
Daylight 9h 03mFEB
36°F
Rain 7 days
Daylight 10h 17mMAR
46°F
Rain 8 days
Daylight 11h 46mAPR
55°F
Rain 13 days
Daylight 13h 27mMAY
65°F
Rain 13 days
Daylight 14h 53mJUN
74°F
Rain 13 days
Daylight 15h 41mJUL
85°F
Rain 8 days
Daylight 15h 22mAUG
84°F
Rain 8 days
Daylight 14h 07mSEP
73°F
★ Best
Rain 7 days
Daylight 12h 29mOCT
58°F
Rain 9 days
Daylight 10h 51mNOV
42°F
Rain 8 days
Daylight 9h 25mDEC
32°F
Rain 7 days
Daylight 8h 42m
Averages are the 1991–2020 climate normals (NOAA National Centers for Environmental Information) for the station named on each page. Rain days = days with at least 0.01 in of precipitation. Daylight is computed for the middle of the month.