Frontenac, MO has a humid continental climate with hot, humid summers and cold winters. The average temperature in the summer months ranges from 68-86 degrees Fahrenheit (20-30°C). Winters bring snowfall with temperatures generally ranging from 30-40 degrees Fahrenheit (-1 to 4°C). Precipitation is evenly distributed throughout the year, with an average of 45 inches (114 cm) annually. Frontenac's location near the Mississippi River can lead to flooding during heavy rain events. Despite the occasional extreme weather conditions, Frontenac offers a temperate climate suitable for visitors all year round.
Frontenac, Missouri gets 43 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Frontenac averages 14 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 201 sunny days per year in Frontenac. The US average is 205 sunny days.
Frontenac gets some kind of precipitation, on average, 101 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 23
Rain: averages 43 inches of rain a year
Snow: averages 14 inches of snow a year