Weather By Day

September Cheyenne Weather 
September Cheyenne Weather
Record High: 95°F
Normal High: 70°F
Normal Low: 43°F
Record Low: 8°F
Avg Monthly Rain: 1.43"
Rec 1 Day Rain: 2.69"
Avg Monthly Snow: 1.1"
Rec 1 Day Snow: 5.5"

Cheyenne Weather In September

In the last 75 years the highest measured September temperature in Cheyenne was 95 degrees Fahrenheit, on September 1, 1995, while the mean high temperature is 70. The record low September temperature in Cheyenne for the last 75 years was 8 most recently encountered on September 28, 1985, and the average low daily temperature is 43.

United States National Weather Service historical Cheyenne September weather data indicates that on September 29, 1985, the measured high temperature did not exceed 29 degrees Fahrenheit, the lowest high measured in Cheyenne in the past 75 years. Weather Service records additionally indicate that on September 5, 1960, the low for the day was not measured below 64 degrees, the highest low temperature recorded in Cheyenne in the last 75 years.

National Weather Service data shows that the high temperature in Cheyenne on September First averages 78 degrees Fahrenheit and the high on the final day of September averages 67 degrees. The average daily low temperature in Cheyenne on September First is 50 degrees Fahrenheit and the average low on the last day of September is 40 degrees.

Cheyenne typically receives an average of 1.43 inches of rain during the month. September Cheyenne Weather records indicate that on September 8, 1973 Cheyenne received 2.69 inches of precipitation, the highest amount of rain recorded in a single day in September. Cheyenne receives an average of 1.1 inches of snow in September. The highest snowfall measured in a single day in September was 5.5 inches on September 13, 1993.