Forbes, SD has a moderate climate with warm summers and cold winters. The area experiences some snowfall, but is known to be fairly mild overall. Temperatures in the summer can reach highs of up to 85 degrees Fahrenheit and winter temperatures can dip down to lows of -10 degrees Fahrenheit. Precipitation is fairly common throughout the year, with an average rainfall of 24 inches annually. The average humidity level is around 70%, which makes for comfortable summers and relatively dry winters.
Forbes, South Dakota gets 24 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Forbes averages 44 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 214 sunny days per year in Forbes. The US average is 205 sunny days.
Forbes gets some kind of precipitation, on average, 84 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 9
Rain: averages 24 inches of rain a year
Snow: averages 44 inches of snow a year