Deadwood, SD enjoys a temperate climate with four distinct seasons. Summers are usually hot and dry, with temperatures ranging from mid-70s to low 90s Fahrenheit (21-33 Celsius). Winters can be quite cold, with temperatures ranging from the mid-teens to low 30s Fahrenheit (-9 to -1 Celsius) and frequent snowfall. Spring and autumn are typically mild, with comfortable temperatures around 50F (10C). The city gets an average of 17 inches (43 cm) of snow per year, most of which falls between November and April. Precipitation is variable throughout the year, averaging 20 inches (51 cm) annually.
Deadwood, South Dakota gets 30 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Deadwood averages 138 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 230 sunny days per year in Deadwood. The US average is 205 sunny days.
Deadwood gets some kind of precipitation, on average, 111 days per year. Precipitation is rain, snow, sleet, or hail that falls to the ground. In order for precipitation to be counted you have to get at least .01 inches on the ground to measure.
Weather Highlights
Summer High: the July high is around 80 degrees
Winter Low: the January low is 11
Rain: averages 30 inches of rain a year
Snow: averages 138 inches of snow a year