Sullivan County, Tennessee gets 44 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Sullivan County averages 11 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 Sullivan County. The US average is 205 sunny days.
Sullivan County gets some kind of precipitation, on average, 134 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.
Summer High: the July high is around 86 degrees
Winter Low: the January low is 25
Rain: averages 44 inches of rain a year
Snow: averages 11 inches of snow a year
BESTPLACES COMFORT INDEX
The annual BestPlaces Comfort Index for Sullivan County is 7.4 (10=best), which means it is more comfortable than most places in Tennessee.
7.4 / 10
September, May and June are the most pleasant months in Sullivan County, while January and December are the least comfortable months.