Hartley, IA has a humid continental climate. Summers in the city are hot and humid, with temperatures often reaching into the 90s Fahrenheit. Winters are cold and snowy, with average temperatures dropping to below freezing from December to March. Precipitation is spread throughout the year but peaks in May and June as thunderstorms can occur in those months. Spring and fall are generally milder than summer or winter.
Hartley (zip 51346), Iowa gets 30 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Hartley (zip 51346) averages 36 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 208 sunny days per year in Hartley (zip 51346). The US average is 205 sunny days.
Hartley (zip 51346) gets some kind of precipitation, on average, 94 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 7
Rain: averages 30 inches of rain a year
Snow: averages 36 inches of snow a year