50129 Jefferson, IA has a humid continental climate with hot and humid summers and cold winters. The average temperature in the summer reaches into the mid-80s Fahrenheit (around 29 degrees Celsius) while winter temperatures can drop to around 15 degrees Fahrenheit (-9 Celsius). The area experiences moderate to heavy rainfall throughout the year, with occasional snowfall during the colder winter months.
Jefferson (zip 50129), Iowa gets 35 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Jefferson (zip 50129) averages 27 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 Jefferson (zip 50129). The US average is 205 sunny days.
Jefferson (zip 50129) gets some kind of precipitation, on average, 97 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 10
Rain: averages 35 inches of rain a year
Snow: averages 27 inches of snow a year