Duncan, OK has a humid subtropical climate with hot summers and mild winters. It experiences abundant rainfall throughout the year with temperatures ranging from an average low of 34°F in winter to an average high of 92°F in summer. The city also has an average annual precipitation of 37.5 inches, leading to warm and wet conditions across the year.
Duncan (zip 73533), Oklahoma gets 37 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Duncan (zip 73533) averages 4 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 243 sunny days per year in Duncan (zip 73533). The US average is 205 sunny days.
Duncan (zip 73533) gets some kind of precipitation, on average, 75 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 94 degrees
Winter Low: the January low is 27
Rain: averages 37 inches of rain a year
Snow: averages 4 inches of snow a year