Glenham, SD has a moderate climate with mild summers and cold winters. Average summer temperatures range from the low to mid-80s during the day, with cool nights in the mid-50s. Winter temperatures generally stay in the mid-20s during the day and can drop below zero during the night. The area receives minimal rainfall throughout the year, but is occasionally hit by severe thunderstorms or blizzards. Snowfall can range from light accumulations of two to three feet per year, depending on location within Glenham.
Glenham, South Dakota gets 17 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Glenham averages 33 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 201 sunny days per year in Glenham. The US average is 205 sunny days.
Glenham gets some kind of precipitation, on average, 85 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 5
Rain: averages 17 inches of rain a year
Snow: averages 33 inches of snow a year