Mosquito season in Warren County, TN: when it starts and ends
Mosquito months in Warren County
In a normal year mosquito season in Warren County, TN starts around March 27 and ends around November 7, about 32 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Warren County, and when
- Start tipping out standing water weekly by March 13.
- Book any yard treatment for late March, ahead of the July peak.
- Repellent can go away after November 7.
- No West Nile cases since 2016, so bites in Warren County are a nuisance; check window screens.
Warren County against the rest of TN
Warren County has the 42nd longest season of 95 TN counties, at 225 days against 252 in Hamilton County and 186 in Carter County. Its mean temperature is 60.2°F.
- Lawrence County: March 26 to November 7 (226 days, 1 WNV)
- Franklin County: March 26 to November 6 (225 days, 0 WNV)
- Henry County: March 28 to November 8 (225 days, 0 WNV)
- Montgomery County: March 29 to November 9 (225 days, 0 WNV)
West Nile in Warren County
From 1999 to 2025, CDC ArboNET counted 2 human West Nile cases in Warren County (0 neuroinvasive) across 2 years. The worst was 2012 with 1; the latest was 2012.
More: how the dates are worked out · when the season starts across the US.