Mosquito season in Overton County, TN: when it starts and ends
Mosquito months in Overton County
In a normal year mosquito season in Overton County, TN starts around April 1 and ends around November 3, about 31 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Overton 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 3.
- No West Nile cases since 2016, so bites in Overton County are a nuisance; check window screens.
Overton County against the rest of TN
Overton County has the 64th longest season of 95 TN counties, at 216 days against 252 in Hamilton County and 186 in Carter County. Its mean temperature is 57.4°F.
- Monroe County: March 31 to November 2 (216 days, 1 WNV)
- Clay County: April 1 to November 3 (216 days, 0 WNV)
- Perry County: April 1 to November 3 (216 days, 0 WNV)
- Putnam County: April 1 to November 3 (216 days, 0 WNV)
West Nile in Overton County
CDC ArboNET lists no human West Nile cases for Overton County from 1999 to 2025, though virus turned up in birds, mosquitoes or horses in 2 of those years.
More: how the dates are worked out · when the season starts across the US.