The climate in 57481 Westport, SD is characterized by hot summers and cold winters. The temperature during the summer months can rise up to 86°F while winter temperatures can drop below 0°F. The area receives an average of 33 inches of rainfall annually and typically experiences mild snowfall each winter with 11 inches on average. The area also experiences windy conditions with an average wind speed of 8 miles per hour.
Westport (zip 57481), South Dakota gets 22 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Westport (zip 57481) 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 Westport (zip 57481). The US average is 205 sunny days.
Westport (zip 57481) gets some kind of precipitation, on average, 86 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 1
Rain: averages 22 inches of rain a year
Snow: averages 39 inches of snow a year