Granville, IL enjoys a diverse climate. It receives all four seasons throughout the year, with hot summers and cold winters. On average, temperatures reach highs of 86°F in the summer months and lows of 23°F in winter. Rainfall also varies greatly throughout the year, ranging from just over 30 inches annually to almost 50 inches depending on the season. In addition to rain, Granville can experience snowfall from November through April. Snowstorms are rare but do occur, usually staying light and providing a picturesque white blanket for the town.
Granville, Illinois gets 38 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Granville averages 22 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 193 sunny days per year in Granville. The US average is 205 sunny days.
Granville gets some kind of precipitation, on average, 103 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 86 degrees
Winter Low: the January low is 14
Rain: averages 38 inches of rain a year
Snow: averages 22 inches of snow a year