Iroquois, SD has a continental climate with hot summers and cold winters. On average, summer temperatures range from the mid-70s to low 80s Fahrenheit while winter temperatures can drop into the teens or lower. Precipitation is fairly evenly distributed throughout the year, ranging from around 25 inches annually in the drier months to over 3 inches per month during the rainy season. Snowfall totals vary, averaging around 18 inches each winter. The city also experiences occasional severe weather such as thunderstorms and blizzards.
Iroquois, South Dakota gets 25 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Iroquois averages 35 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 209 sunny days per year in Iroquois. The US average is 205 sunny days.
Iroquois gets some kind of precipitation, on average, 77 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 85 degrees
Winter Low: the January low is 7
Rain: averages 25 inches of rain a year
Snow: averages 35 inches of snow a year