Duncan, MO has a humid subtropical climate with hot summers and cold winters. The average temperature in July is 79 degrees Fahrenheit, while the average temperature in January is 28 degrees Fahrenheit. Precipitation is spread fairly evenly throughout the year with an average of 41 inches annually. Summers are generally sunny and humid, with occasional thunderstorms providing relief during the hottest months. Winters tend to be cold but mild, with snowfall typically occurring in small amounts through the winter months.
Duncan, Missouri gets 41 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Duncan averages 17 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 Duncan. The US average is 205 sunny days.
Duncan gets some kind of precipitation, on average, 103 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 86 degrees
Winter Low: the January low is 15
Rain: averages 41 inches of rain a year
Snow: averages 17 inches of snow a year