Hanover, IL experiences a humid continental climate. Summers in the area are generally warm and humid with temperatures reaching up to the upper 80s or lower 90s on a hot summer day. Winters are cold and snowy with average temperatures ranging from the low 20s to mid-30s. Rainfall is spread evenly throughout the year with snowfall varying depending on the season. Hanover typically sees around 35 inches of precipitation annually.
Hanover (zip 61041), Illinois gets 37 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Hanover (zip 61041) averages 33 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 191 sunny days per year in Hanover (zip 61041). The US average is 205 sunny days.
Hanover (zip 61041) gets some kind of precipitation, on average, 111 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 11
Rain: averages 37 inches of rain a year
Snow: averages 33 inches of snow a year