Weather By Day

September Dubuque Weather 
September Dubuque Weather
Record High: 97°F
Normal High: 72°F
Normal Low: 52°F
Record Low: 28°F
Avg Monthly Rain: 3.56"
Rec 1 Day Rain: 8.85"

Dubuque Weather In September

The highest recorded temperature in September for Dubuque for the past 58 years was 97 degrees Fahrenheit, registered on September 18, 1955, while the regular high temperature is 72. The lowest documented temperature for Dubuque for the past 58 years in September was 28 on September 29, 1984, and the regular low is 52.

United States National Weather Service historical Dubuque September Weather data shows that on September 30, 1985, the high temperature did not exceed 48 degrees Fahrenheit, the lowest high measured in Dubuque in the past 58 years. Weather Service records additionally show that on September 8, 1985, the recorded low temperature for the day did not drop below 73 degrees, the highest low measured in Dubuque in the last 58 years.

According to the National Weather Service, the high temperature in Dubuque in September on the first day of the month averages 78 degrees and the high on the last day of the month averages 69 degrees. The low temperature in Dubuque in September on the first day of the month averages 57 degrees and the low temperature on the last day of the month averages 46 degrees.

Dubuque typically receives an average of 3.56 inches of rain during the month. September Dubuque Weather records show that on September 15, 1967 Dubuque received 8.85 inches of rain, the most rain measured in a single day in September.