Places › Jackson, WY › September
Jackson in September
One of the best months — score 96 of 100
Typical September days in Jackson reach about 68°F with nights near 33°F.
Avg high
68°F
1991–2020 normal
Avg low
33°F
1991–2020 normal
Rain total
1.59 in
in a typical September
Rain days
8
days with at least 0.01 in
Daylight
12h 27m
at mid-September, computed
What to pack for Jackson in September
- An insulated coat, plus a hat and gloves for mornings.
- Layers — afternoons run about 35° warmer than mornings.
- A compact rain layer — about 8 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 Jackson
JAN
26°F
★ Best
Rain 12 days
Daylight 9h 17mFEB
30°F
★ Best
Rain 10 days
Daylight 10h 25mMAR
40°F
Rain 9 days
Daylight 11h 47mAPR
50°F
Rain 9 days
Daylight 13h 21mMAY
60°F
Rain 11 days
Daylight 14h 40mJUN
70°F
★ Best
Rain 10 days
Daylight 15h 24mJUL
79°F
Rain 7 days
Daylight 15h 07mAUG
78°F
Rain 8 days
Daylight 13h 58mSEP
68°F
★ Best
Rain 8 days
Daylight 12h 27mOCT
54°F
Rain 9 days
Daylight 10h 56mNOV
38°F
Rain 10 days
Daylight 9h 37mDEC
26°F
Rain 14 days
Daylight 8h 58m
26°F
★ Best
Rain 12 days
Daylight 9h 17mFEB
30°F
★ Best
Rain 10 days
Daylight 10h 25mMAR
40°F
Rain 9 days
Daylight 11h 47mAPR
50°F
Rain 9 days
Daylight 13h 21mMAY
60°F
Rain 11 days
Daylight 14h 40mJUN
70°F
★ Best
Rain 10 days
Daylight 15h 24mJUL
79°F
Rain 7 days
Daylight 15h 07mAUG
78°F
Rain 8 days
Daylight 13h 58mSEP
68°F
★ Best
Rain 8 days
Daylight 12h 27mOCT
54°F
Rain 9 days
Daylight 10h 56mNOV
38°F
Rain 10 days
Daylight 9h 37mDEC
26°F
Rain 14 days
Daylight 8h 58m
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.