Johnson, MO County has a humid subtropical climate. Summers in this region can be quite hot and humid, with temperatures frequently reaching into the low to mid-90s. Winters are mild, with temperatures typically staying between 25 and 50 degrees Fahrenheit. The area receives an average of 45 inches of precipitation per year, which is mainly spread out over the spring and summer months. Snowfall is fairly light but does occur on occasion from late November through early March.
Johnson County, Missouri gets 43 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Johnson County averages 13 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 214 sunny days per year in Johnson County. The US average is 205 sunny days.
Johnson County 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 88 degrees
Winter Low: the January low is 19
Rain: averages 43 inches of rain a year
Snow: averages 13 inches of snow a year