Weather By Day

September Denver Weather 
September Denver Weather
Record High: 97°F
Normal High: 77°F
Normal Low: 47°F
Record Low: 17°F
Avg Monthly Rain: 1.14"
Rec 1 Day Rain: 1.44"
Avg Monthly Snow: 1.6"
Rec 1 Day Snow: 12"

Denver Weather In September

The record high September temperature in Denver Colorado for the last 68 years was 97 degrees Fahrenheit, most recently encountered on September 7, 2002, while the regular high temperature is 77. In the last 68 years the highest reported temperature in Denver for September was 17 most recently measured on September 29, 1985, while the normal low measured temperature is 47.

US National Weather Service Denver September Weather data records that on September 29, 1985, the high temperature did not exceed 29 degrees Fahrenheit, the lowest high measured in Denver in the past 68 years. Weather Service data also shows that on September 10, 2005, the lowest recorded temperature for the day did not drop below 65 degrees, the highest low measured temperature in Denver in the last 68 years.

National Weather Service records indicate that the high temperature in Denver on September First averages 48 degrees and the high on the last day of the month averages 41 degrees. The low measured temperature in Denver on September First averages 22 degrees and the low on the last day of the month averages 16 degrees.

Denver receives an average of 1.14 inches of precipitation during September. According to September Denver Weather records, the most rain measured in a single day in September was 1.44 inches on September 28, 1973. Denver receives an average of 1.6 inches of snow in September. The most snow measured in a single day in September was 12 inches on September 17, 1971.