63011 Ballwin, MO is located in the humid continental climate zone and experiences four distinct seasons. Summers are generally hot with temperatures often reaching into the 80s or 90s, while winters can be quite cold, with temperatures below freezing and occasional snowfall. The spring season brings mild temperatures and moderate amounts of precipitation while autumn tends to be warm but dry. Ballwin receives an average of 48 inches of rainfall per year, most likely occurring between March and May.
Ballwin (zip 63011), Missouri gets 44 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Ballwin (zip 63011) averages 12 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 Ballwin (zip 63011). The US average is 205 sunny days.
Ballwin (zip 63011) 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 88 degrees
Winter Low: the January low is 21
Rain: averages 44 inches of rain a year
Snow: averages 12 inches of snow a year