in degrees Fahrenheit and Celsius

Average Temperatures for Minnesota in September





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

You can jump to a separate table for each region of the state: Southern, Northeastern and Northwestern Minnesota.

The tables give the normals for maximum and minimum temperatures based on weather data collected from 1991 to 2020 by the US National Centers for Environmental Information.

Southern Minnesota

Average September temperatures
High °F Low °F Place High °C Low °C
73 51 Albert Lea 23 11
73 50 Faribault 23 10
74 50 Mankato 23 10
73 54 Minneapolis 23 12
73 50 Pipestone 23 10
74 50 Redwood Falls 24 10
72 50 Rochester 22 10
71 52 St. Paul 22 11
73 54 Winona 23 12
73 49 Worthington 23 10

Northeastern Minnesota

Average daily temperatures in September
High °F Low °F Place High °C Low °C
69 48 Big Sandy Lake Dam 20 9
67 47 Duluth 20 9
62 47 Grand Marais 17 9
65 44 Grand Portage 18 7
68 45 Grand Rapids 20 7
64 45 Gunflint Lake 18 7
66 40 Hibbing 19 5
66 42 International Falls 19 6
67 49 Two Harbors 19 9
72 47 Wild River State Park 22 8

Northwestern Minnesota

September temperatures: daily averages
High °F Low °F Place High °C Low °C
70 48 Agassiz Wildlife Refuge 21 9
70 50 Alexandria 21 10
70 46 Brainerd 21 8
70 46 Detroit Lakes 21 8
71 49 Fergus Falls 22 9
69 49 Mille Lacs Lake 20 9
72 49 Moorhead 22 9
71 48 St. Cloud 22 9
66 43 Warroad 19 6
69 43 Waskish 20 6
Reference

NOAA National Centers for Environmental Information (NCEI). Climate Normals.

Minnesota Temperatures
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