Isabel, SD has a continental climate with cold winters and hot summers. Average winter temperatures range from lows in the single digits to highs around 20 degrees Fahrenheit. During summer months, average temperatures range from highs around 90 degrees Fahrenheit to lows in the upper 50's. Rainfall is fairly evenly distributed throughout the year, averaging around 18 inches annually. Snowfall tends to be quite low, only totaling 3-4 inches per year on average.
Isabel (zip 57633), South Dakota gets 18 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Isabel (zip 57633) averages 39 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 202 sunny days per year in Isabel (zip 57633). The US average is 205 sunny days.
Isabel (zip 57633) gets some kind of precipitation, on average, 76 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 87 degrees
Winter Low: the January low is 8
Rain: averages 18 inches of rain a year
Snow: averages 39 inches of snow a year