57437 Eureka, SD has a continental climate with cold winters and warm summers. Temperatures during the summer months average in the mid to high 70s, while winter months average temperatures in the low to mid 20s. Precipitation is evenly distributed throughout the year, receiving an average amount of 35 inches each year. During the winter months, snowfall totals can reach 25 inches annually. Eureka typically experiences many days of sunshine throughout the year and humidity levels are usually moderate.
Eureka (zip 57437), South Dakota gets 19 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Eureka (zip 57437) averages 37 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 Eureka (zip 57437). The US average is 205 sunny days.
Eureka (zip 57437) gets some kind of precipitation, on average, 87 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 84 degrees
Winter Low: the January low is 3
Rain: averages 19 inches of rain a year
Snow: averages 37 inches of snow a year