Normal weather in Duluth in September
The weather in Duluth in September has an average temperature of around 29°C during the day. On average, September sees 64 mm of rain in Duluth. The wind speed is 4 Beaufort and mainly comes from South.
After August, September in Duluth starts with a temperature of 29°C and ends around October at 26°C.
Temperature per day in September in Duluth
This graph shows the average daily maximum temperatures in September in Duluth, indicated in degrees Celsius.
Precipitation per day in September in Duluth
This graph shows the average daily precipitation in September in Duluth, indicated in millimeters.
UV index per day in September in Duluth
This graph shows the average daily UV index in September in Duluth.
Average daily weather in September
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3 4Average weather in Duluth per month
Click on a month below to see in detail how the weather typically is in Duluth and what to expect. Based on the historical weather data of Duluth, you can view the average temperature, precipitation, wind, and UV index for each day of the month.