Mosquito season in Trousdale County, TN: when it starts and ends
Mosquito months in Trousdale County
In a normal year mosquito season in Trousdale County, TN starts around March 31 and ends around November 4, about 31 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Trousdale County, and when
- Start tipping out standing water weekly by March 17.
- Book any yard treatment for late March, ahead of the July peak.
- Repellent can go away after November 4.
- 1 West Nile case since 2016 (last 2024): you should use repellent at dusk June to September, more so if over 60.
Trousdale County against the rest of TN
Trousdale County has the 59th longest season of 95 TN counties, at 218 days against 252 in Hamilton County and 186 in Carter County. Its mean temperature is 57.9°F.
- Chester County: March 30 to November 4 (219 days, 0 WNV)
- Hickman County: March 31 to November 4 (218 days, 0 WNV)
- Dickson County: March 31 to November 3 (217 days, 0 WNV)
- Pickett County: March 31 to November 3 (217 days, 0 WNV)
West Nile in Trousdale County
From 1999 to 2025, CDC ArboNET counted 1 human West Nile case in Trousdale County (1 neuroinvasive) across 1 year. The worst was 2024 with 1; the latest was 2024.
More: how the dates are worked out · when the season starts across the US.