Monticello, MO has a humid continental climate. Summers in Monticello are typically hot and humid with frequent thunderstorms. Average daytime temperatures range from the mid-seventies to the mid-eighties. Winters are cold with snowfall, although temperatures vary widely depending on the year. Average winter temperatures usually range from the low twenties to the low thirties, but can dip into single digits during cold snaps. Spring and fall offer milder weather with highs in the mid to upper sixties.
Monticello, Missouri gets 39 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Monticello averages 16 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 194 sunny days per year in Monticello. The US average is 205 sunny days.
Monticello gets some kind of precipitation, on average, 91 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 19
Rain: averages 39 inches of rain a year
Snow: averages 16 inches of snow a year