Weather By Day

September Weather In Green Bay  
September Green Bay Weather
Record High: 95°F
Normal High: 70°F
Normal Low: 48°F
Record Low: 24°F
Avg Monthly Rain: 3.11"
Rec 1 Day Rain: 2.99"

Green Bay Weather In September

In the last 61 years the highest measured temperature in Green Bay Wisconsin for September was 95 degrees Fahrenheit, most recently measured on September 17, 1955, while the regular high temperature is 70. The lowest documented temperature in September for Green Bay for the past 61 years was 24 on September 1, 1949, while the average low temperature is 48.

National Weather Service historical Green Bay September Weather data indicates that on September 3, 1974, the recorded high did not exceed 46 degrees Fahrenheit, the lowest high measured in Green Bay in the past 61 years. Weather Service records additionally show that on September 10, 1961, the recorded low temperature for the day did not drop below 71 degrees, the highest low measured in Green Bay in the last 61 years.

According to the National Weather Service, the high temperature in Green Bay in September on the first day of the month averages 76 degrees and the high on the last day of the month averages 66 degrees. The low temperature in Green Bay in September on the first day of the month averages 54 degrees and the low temperature on the last day of the month averages 44 degrees.

Green Bay typically receives an average of 3.11 inches of rain during the month. The most rain recorded in a single day, as shown by September Green Bay Weather data, was 2.99 inches on September 3, 1964.