Sheridan, WY Climate in September

Temperature for September

In Sheridan, WY during September the average high temperature is 77.6°F. The hottest day on record was September 5, 1998 when the temperature hit 100.9°F.

Sheridan, WY daily average and extreme temperature range for September

Low Temperature

During September the overnight temperature drops to an average of 42.1°F, with the lowest temperature of 6.1°F being recorded on September 25, 1984. On average there are 2 days in September when the temperature stays below freezing all day. Overnight temperatures drop below freezing between 1 and 10 times in September.

Precipitation for September

In September the average monthly rainfall in Sheridan, WY is 1.30 inches with rain usually falling on between 6 and 7 days. 2012 was the driest September with only 0.00 inches of rain falling, and 1973 was the wettest September with 4.27 inches of rain. The wettest single day in September was 4 September 1999 when 1.48 inches of rain fell.

In September it usually snows on between 0 and 1 days. There are thunderstorms on between 2 and 3 days in September.