Mosquito season in Benton County, TN: when it starts and ends
Mosquito months in Benton County
In a normal year mosquito season in Benton County, TN starts around March 20 and ends around November 14, about 34 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Benton County, and when
- Start tipping out standing water weekly by March 6.
- Book any yard treatment for mid March, ahead of the July peak.
- Repellent can go away after November 14.
- No West Nile cases since 2016, so bites in Benton County are a nuisance; check window screens.
Benton County against the rest of TN
Benton County has the 11th longest season of 95 TN counties, at 239 days against 252 in Hamilton County and 186 in Carter County. Its mean temperature is 59.9°F.
- Dyer County: March 16 to November 12 (241 days, 1 WNV)
- Humphreys County: March 18 to November 13 (240 days, 0 WNV)
- Hardin County: March 18 to November 11 (238 days, 0 WNV)
- Lake County: March 18 to November 12 (238 days, 0 WNV)
West Nile in Benton County
CDC ArboNET lists no human West Nile cases for Benton County from 1999 to 2025, though virus turned up in birds, mosquitoes or horses in 3 of those years.
More: how the dates are worked out · when mosquitoes go away for the winter.