Polk County, Iowa gets 36 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Polk County averages 33 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 202 sunny days per year in Polk County. The US average is 205 sunny days.
Polk County gets some kind of precipitation, on average, 108 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.
Summer High: the July high is around 86 degrees
Winter Low: the January low is 12
Rain: averages 36 inches of rain a year
Snow: averages 33 inches of snow a year
BESTPLACES COMFORT INDEX
The annual BestPlaces Comfort Index for Polk County is 6.9 (10=best), which means it is more comfortable than most places in Iowa.
8.6 / 4.7
Summer / Winter
September, June and May are the most pleasant months in Polk County, while January and December are the least comfortable months.