Hamlin, SD County has a dry continental climate, with hot summers and cold winters. The area receives an average of 17 inches of precipitation each year, primarily in the form of snow during the winter months. Temperatures range greatly throughout the year, with summer temperatures reaching into the 80s and winter lows dropping to below zero. Despite its cold winters, Hamlin is known for having a relatively mild climate compared to other areas of South Dakota.
Hamlin County, South Dakota gets 25 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Hamlin County averages 38 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 210 sunny days per year in Hamlin County. The US average is 205 sunny days.
Hamlin County gets some kind of precipitation, on average, 83 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 82 degrees
Winter Low: the January low is 3
Rain: averages 25 inches of rain a year
Snow: averages 38 inches of snow a year