Average September Temperatures for Michigan

Average temperatures for September at cities, towns, parks and lakes throughout Michigan are listed below in degrees Fahrenheit and Celsius.

The tables give the normals for maximum and minimum monthly temperatures based on weather data collected from 1981 to 2010.

The Thumb & Southeast Michigan

Average September temperatures
High °F	Low °F	Place	High °C	Low °C
74	53	Ann Arbor	23	12
76	53	Dearborn	24	12
74	55	Detroit	23	13
72	50	Flint	22	10
68	51	Harbor Beach	20	11
74	54	Monroe	23	12
72	55	Port Huron	22	13
74	51	Saginaw	23	11

Average daily temperatures in September
High °F	Low °F	Place	High °C	Low °C
73	50	Battle Creek	23	10
75	53	Benton Harbor	24	12
73	53	Grand Rapids	23	12
74	52	Holland	24	11
73	51	Lansing	23	11
72	49	Mt Pleasant	22	10
71	53	Muskegon	22	12

September temperatures: daily averages
High °F	Low °F	Place	High °C	Low °C
69	47	Alpena	21	8
69	46	Cadillac	21	8
69	49	Cheboygan	20	9
71	49	East Tawas	22	9
68	53	Frankfort	20	12
68	48	Gaylord	20	9
68	51	Harrisville	20	11
71	42	Houghton Lake	22	5
70	51	Ludington	21	11
68	51	Petoskey	20	11
67	52	St James, Beaver Island	19	11
70	50	Traverse City	21	10

Average September temperatures
High °F	Low °F	Place	High °C	Low °C
65	43	Champion Van Riper Park	19	6
66	51	De Tour Village	19	11
68	47	Escanaba	20	8
68	49	Grand Marais	20	9
65	46	Houghton	18	8
70	46	Iron Mountain	21	8
66	46	Ironwood	19	8
66	48	Manistique	19	9
67	52	Marquette	19	11
66	49	Munising	19	10
67	48	Sault Ste Marie	19	9
70	48	Seney National Wildlife Refuge	21	9
66	42	Tahquamenon Falls Park	19	6
66	49	Whitefish Point	19	10