The climate in St. Ann, MO is generally warm and humid, with hot summers and mild winters. Average high temperatures during the summer months range from the mid-80s to the low 90s, with average low temperatures ranging from the mid-60s to mid-70s. During winter months, average highs range from the upper 40s to mid-50s, with lows in the lower 30s. St. Ann experiences an average of 42 inches of rainfall annually, most of which falls during spring and summer months. Snowfall is fairly uncommon in St. Ann; typically less than 5 inches per year.
St. Ann, Missouri gets 42 inches of rain, on average, per year. The US average is 38 inches of rain per year.
St. Ann averages 13 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 200 sunny days per year in St. Ann. The US average is 205 sunny days.
St. Ann gets some kind of precipitation, on average, 104 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 42 inches of rain a year
Snow: averages 13 inches of snow a year