Weather By Day

September Des Moines Weather 
September Des Moines Weather
Record High: 100°F
Normal High: 76°F
Normal Low: 54°F
Record Low: 33°F
Avg Monthly Rain: 3.15"
Rec 1 Day Rain: 3.98"

Des Moines Weather In September

The highest recorded temperature in September for Des Moines for the past 71 years was 100 degrees Fahrenheit, on September 9, 1955, while the mean high temperature is 76. The coldest September day in Des Moines for the past 71 years was 33 most recently registered on September 8, 1949, while the typical low recorded temperature is 54.

According to National Weather Service Des Moines September Weather data, on September 26, 1965, the recorded high temperature did not exceed 47 degrees Fahrenheit, the lowest high measured in Des Moines in the past 71 years. The Weather Service additionally shows that on September 7, 1959, the low for the day did not drop below 76 degrees, the highest low temperature in Des Moines in the last 71 years.

National Weather Service data shows that the high temperature in Des Moines on September First averages 81 degrees Fahrenheit and the high on the final day of September averages 72 degrees. The low temperature in Des Moines in September on the first day of the month averages 60 degrees and the low temperature on the last day of the month averages 49 degrees.

Des Moines normally receives an average of 3.15 inches of rain during September. According to September Des Moines Weather records, the most rain measured in a single day in September was 3.98 inches on September 30, 1961.