Sullivan, MO has a humid continental climate with hot, humid summers and cold winters. Average temperatures in the summer reach as high as 89 degrees Fahrenheit while winter temperatures can dip down to 13 degrees Fahrenheit. The area gets about 36 inches of precipitation per year, much of it falling from April to June. Winters are typically dry with an average of 8 inches of snowfall each year. The area also experiences moderate winds with occasional gusts up to 21 miles per hour.
Sullivan, Missouri gets 45 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Sullivan 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 Sullivan. The US average is 205 sunny days.
Sullivan gets some kind of precipitation, on average, 98 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 19
Rain: averages 45 inches of rain a year
Snow: averages 13 inches of snow a year