Mosquito season in Coffee County, TN: when it starts and ends
Mosquito months in Coffee County
In a normal year mosquito season in Coffee County, TN starts around April 1 and ends around November 1, about 31 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Coffee County, and when
- Start tipping out standing water weekly by March 18.
- Book any yard treatment for early April, ahead of the July peak.
- Repellent can go away after November 1.
- No West Nile cases since 2016, so bites in Coffee County are a nuisance; check window screens.
Coffee County against the rest of TN
Coffee County has the 69th longest season of 95 TN counties, at 214 days against 252 in Hamilton County and 186 in Carter County. Its mean temperature is 56.8°F.
- Sevier County: April 2 to November 4 (216 days, 2 WNV)
- Wayne County: April 2 to November 3 (215 days, 0 WNV)
- Sullivan County: April 1 to November 1 (214 days, 1 WNV)
- Fentress County: April 2 to November 2 (214 days, 0 WNV)
West Nile in Coffee County
CDC ArboNET lists no human West Nile cases for Coffee County from 1999 to 2025, though virus turned up in birds, mosquitoes or horses in 4 of those years.
Background: when mosquitoes go away for the winter; how the dates are worked out.