Mosquito season in Monroe County, TN: when it starts and ends
Mosquito months in Monroe County
In a normal year mosquito season in Monroe County, TN starts around March 31 and ends around November 2, about 31 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Monroe 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 2.
- 1 West Nile case since 2016 (last 2018): you should use repellent at dusk June to September, more so if over 60.
Monroe County against the rest of TN
Monroe County has the 62nd longest season of 95 TN counties, at 216 days against 252 in Hamilton County and 186 in Carter County. Its mean temperature is 58.6°F.
- Dickson County: March 31 to November 3 (217 days, 0 WNV)
- Pickett County: March 31 to November 3 (217 days, 0 WNV)
- Clay County: April 1 to November 3 (216 days, 0 WNV)
- Overton County: April 1 to November 3 (216 days, 0 WNV)
West Nile in Monroe County
From 1999 to 2025, CDC ArboNET counted 2 human West Nile cases in Monroe County (1 neuroinvasive) across 2 years. The worst was 2018 with 1; the latest was 2018.
Background: when mosquitoes go away for the winter; how the dates are worked out.