Cowan, TN has a humid subtropical climate. Summers are typically hot and humid with highs in the upper 80s to low 90s and lows in the upper 60s to low 70s. Winters are mild with temperatures dropping into the upper 30s overnight and highs reaching into the lower 50s during the day. Spring and fall generally have mild temperatures with highs ranging from the mid 50s to mid 70s. Rainfall is abundant throughout the year, but especially during spring and summer months when thunderstorms are common.
Cowan (zip 37318), Tennessee gets 56 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Cowan (zip 37318) averages 3 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 208 sunny days per year in Cowan (zip 37318). The US average is 205 sunny days.
Cowan (zip 37318) gets some kind of precipitation, on average, 125 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 28
Rain: averages 56 inches of rain a year
Snow: averages 3 inches of snow a year