Winona, MO has a humid continental climate with hot and humid summers and cold winters. The average temperature in the summer months ranges from 75-90°F while the winter months range from 25-40°F. Winona experiences an average of 41 inches of rainfall each year, with higher amounts during the spring and summer months. Snowfall is common throughout the winter months, but usually melts quickly due to the warmer temperatures. The area also often experiences moderate to severe thunderstorms during the summer months that can bring high winds and heavy rain.
Winona, Missouri gets 46 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Winona averages 8 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 Winona. The US average is 205 sunny days.
Winona gets some kind of precipitation, on average, 78 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 91 degrees
Winter Low: the January low is 19
Rain: averages 46 inches of rain a year
Snow: averages 8 inches of snow a year