Sheridan, WY Climate in December

Temperature for December

In Sheridan, WY during December the average high temperature is 37.8°F. The hottest day on record was December 7, 1981 when the temperature recorded was 72.0°F.

Sheridan, WY daily average and extreme temperature range for December

Low Temperature

Overnight in December the average temperature drops below freezing at 12.3°F, with the lowest temperature of -35.1°F being recorded on December 22, 1989. On average there are 10 days in December when the temperature stays below freezing all day. In the worst December there were 25 days when the temperature did not make it above freezing. Overnight temperatures drop below freezing between 24 and 31 times in December.

Precipitation for December

In December the average monthly rainfall in Sheridan, WY is 0.75 inches with rain usually falling on between 1 and 2 days. 1986 was the driest December with only 0.13 inches of rain falling, and 1989 was the wettest December with 4.44 inches of rain. The wettest single day in December was 10 December 1989 when 2.05 inches of rain fell.

In December it usually snows on between 9 and 10 days. In December there have been some years when thunderstorms have occurred, although there are other years when there hasn't been a thunderstorm in December.