Jonesborough, TN has a humid subtropical climate with hot summers and mild winters. The average high temperature in the summer months is around 85°F (29.4°C), while the average low temperature in winter is around 28°F (-2.2°C). Rainfall is plentiful throughout the year, with an average of 45 inches (114 cm) annually. In addition, snowfall is light, averaging between 5-10 inches (13-25 cm) each year. During the spring and fall seasons, temperatures are mild and pleasant, usually hovering around 60°F (15.6°C). Humidity levels tend to be high throughout the year due to Jonesborough's proximity to both mountains and rivers.
Jonesborough (zip 37659), Tennessee gets 44 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Jonesborough (zip 37659) 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 Jonesborough (zip 37659). The US average is 205 sunny days.
Jonesborough (zip 37659) gets some kind of precipitation, on average, 135 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 86 degrees
Winter Low: the January low is 26
Rain: averages 44 inches of rain a year
Snow: averages 11 inches of snow a year