Mosquito season in Hardin County, TN: when it starts and ends
Mosquito months in Hardin County
In a normal year mosquito season in Hardin County, TN starts around March 18 and ends around November 11, about 34 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Hardin County, and when
- Start tipping out standing water weekly by March 4.
- Book any yard treatment for mid March, ahead of the July peak.
- Repellent can go away after November 11.
- No West Nile cases since 2016, so bites in Hardin County are a nuisance; check window screens.
Hardin County against the rest of TN
Hardin County has the 12th longest season of 95 TN counties, at 238 days against 252 in Hamilton County and 186 in Carter County. Its mean temperature is 61.2°F.
- Humphreys County: March 18 to November 13 (240 days, 0 WNV)
- Benton County: March 20 to November 14 (239 days, 0 WNV)
- Lake County: March 18 to November 12 (238 days, 0 WNV)
- Blount County: March 19 to November 10 (236 days, 0 WNV)
West Nile in Hardin County
From 1999 to 2025, CDC ArboNET counted 1 human West Nile case in Hardin County (0 neuroinvasive) across 1 year. The worst was 2003 with 1; the latest was 2003.
More: how the dates are worked out · when mosquitoes go away for the winter.