Weather By Day

September Duluth Weather 
September Duluth Weather
Record High: 95°F
Normal High: 64°F
Normal Low: 45°F
Record Low: 23°F
Avg Monthly Rain: 4.13"
Rec 1 Day Rain: 3.77"
Avg Monthly Snow: 0.1"
Rec 1 Day Snow: 2.4"

Duluth Weather In September

The record high temperature in Duluth for the last 69 years in September was 95 degrees Fahrenheit, most recently measured on September 11, 1976, and the standard high is 64. The lowest measured temperature in Duluth for the last 69 years in September was 23 measured on September 3, 1974, and the typical low is 45.

United States National Weather Service historical Duluth September Weather data shows that on September 30, 1985, the high temperature did not exceed 38 degrees Fahrenheit, the lowest high measured in Duluth in the past 69 years. Weather Service data also shows that on September 11, 2005, the lowest recorded temperature for the day did not drop below 70 degrees, the highest low measured temperature in Duluth in the last 69 years.

National Weather Service records indicate that the high temperature in Duluth on September First averages 71 degrees and the high on the last day of the month averages 59 degrees. The daily low temperature in Duluth on September First averages 51 degrees Fahrenheit and the low on the last day of September averages 40 degrees.

Duluth usually receives an average of 4.13 inches of precipitation during the month. According to September Duluth Weather records, the most rain measured in a single day in September was 3.77 inches on September 20, 1972. Duluth receives an average of 0.1 inches of snow in September. The highest snowfall measured in a single day in September was 2.4 inches on September 18, 1991.