Mosquito season in Montgomery County, TN: when it starts and ends
Mosquito months in Montgomery County
In a normal year mosquito season in Montgomery County, TN starts around March 29 and ends around November 9, about 32 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Montgomery County, and when
- Start tipping out standing water weekly by March 15.
- Book any yard treatment for late March, ahead of the July peak.
- Repellent can go away after November 9.
- No West Nile cases since 2016, so bites in Montgomery County are a nuisance; check window screens.
Montgomery County against the rest of TN
Montgomery County has the 44th longest season of 95 TN counties, at 225 days against 252 in Hamilton County and 186 in Carter County. Its mean temperature is 58.6°F.
- Warren County: March 27 to November 7 (225 days, 0 WNV)
- Henry County: March 28 to November 8 (225 days, 0 WNV)
- Bedford County: March 27 to November 6 (224 days, 1 WNV)
- Lincoln County: March 27 to November 6 (224 days, 0 WNV)
West Nile in Montgomery County
From 1999 to 2025, CDC ArboNET counted 3 human West Nile cases in Montgomery County (2 neuroinvasive) across 3 years. The worst was 2010 with 1; the latest was 2010.
See how the dates are worked out, and when the season starts across the US.