Wheaton, MO has a humid continental climate characterized by four distinct seasons. Summers in the area are warm and humid with average temperatures reaching into the upper 80s, while winters are cold and dry with temperatures ranging from the low 20s to highs in the 40s. During spring and fall, temperatures are generally mild, often ranging between 40 and 70 degrees Fahrenheit. The region receives an average of 42 inches of precipitation per year, with most falling during the cooler months of autumn and winter.
Wheaton, Missouri gets 46 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Wheaton averages 9 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 211 sunny days per year in Wheaton. The US average is 205 sunny days.
Wheaton gets some kind of precipitation, on average, 93 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 87 degrees
Winter Low: the January low is 23
Rain: averages 46 inches of rain a year
Snow: averages 9 inches of snow a year