Vienna, IL has a humid climate that is typical of the Midwest. The summers tend to be hot and humid, with average temperatures in July reaching up to 86 degrees Fahrenheit. In the winter months, temperatures are generally mild, rarely dipping below freezing. Precipitation is abundant throughout the year, averaging around 40 inches annually. Snowfall usually peaks in January and February but can occur at any time throughout the winter season. Overall, Vienna experiences four distinct seasons throughout the year with temperatures that range from comfortable to hot during summer months.
Vienna, Illinois gets 49 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Vienna averages 8 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 206 sunny days per year in Vienna. The US average is 205 sunny days.
Vienna gets some kind of precipitation, on average, 105 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 89 degrees
Winter Low: the January low is 26
Rain: averages 49 inches of rain a year
Snow: averages 8 inches of snow a year