Sioux Falls, SD has a humid continental climate, characterized by hot summers with temperatures averaging in the mid 80s Fahrenheit (29 Celsius) and cold winters with temperatures averaging in the low 20s Fahrenheit (-6 Celsius). On average, Sioux Falls receives about 33 inches (84 cm) of precipitation each year and experiences 54 days of snowfall annually. The area is also known for its strong winds which can reach up to 35 miles per hour (56 km/h).
Sioux Falls, South Dakota gets 27 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Sioux Falls averages 38 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 211 sunny days per year in Sioux Falls. The US average is 205 sunny days.
Sioux Falls gets some kind of precipitation, on average, 90 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.
Summer High: the July high is around 84 degrees
Winter Low: the January low is 6
Rain: averages 27 inches of rain a year
Snow: averages 38 inches of snow a year
BESTPLACES COMFORT INDEX
The annual BestPlaces Comfort Index for Sioux Falls is 6.8 (10=best), which means it is about average compared to other places in South Dakota.
9.2 / 4.2
Summer / Winter
August, June and September are the most pleasant months in Sioux Falls, while January and December are the least comfortable months.