Mosquito season in Anderson County, TN: when it starts and ends
Mosquito months in Anderson County
In a normal year mosquito season in Anderson County, TN starts around April 7 and ends around November 3, about 30 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Anderson County, and when
- Start tipping out standing water weekly by March 24.
- Book any yard treatment for early April, ahead of the July peak.
- Repellent can go away after November 3.
- No West Nile cases since 2016, so bites in Anderson County are a nuisance; check window screens.
Anderson County against the rest of TN
Anderson County has the 81st longest season of 95 TN counties, at 210 days against 252 in Hamilton County and 186 in Carter County. Its mean temperature is 57.9°F.
- White County: April 3 to November 1 (212 days, 0 WNV)
- DeKalb County: April 4 to November 1 (211 days, 0 WNV)
- Union County: April 7 to November 3 (210 days, 0 WNV)
- Greene County: April 6 to November 1 (209 days, 0 WNV)
West Nile in Anderson County
CDC ArboNET lists no human West Nile cases for Anderson County from 1999 to 2025, though virus turned up in birds, mosquitoes or horses in 5 of those years.
More: how the dates are worked out · when mosquitoes go away for the winter.