Riley, KS County has a temperate climate. Summers are generally hot and muggy, with temperatures reaching up into the high 80s during the hottest months of July and August. Winters are mild and moderate, with average temperatures ranging from the mid-30s to lower 40s. Rainfall is plentiful throughout the year, with annual precipitation averaging between 32 and 38 inches per year. While there are occasional snowstorms in Riley County, these events are typically short-lived and don’t amount to much accumulation in most areas.
Riley County, Kansas gets 34 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Riley County averages 14 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 221 sunny days per year in Riley County. The US average is 205 sunny days.
Riley County 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 90 degrees
Winter Low: the January low is 17
Rain: averages 34 inches of rain a year
Snow: averages 14 inches of snow a year