Mosquito season in Clinton County, KY: when it starts and ends
Mosquito months in Clinton County
In a normal year mosquito season in Clinton County, KY starts around March 31 and ends around November 3, about 31 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Clinton 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 3.
- No West Nile cases since 2016, so bites in Clinton County are a nuisance; check window screens.
Clinton County against the rest of KY
Clinton County has the 38th longest season of 120 KY counties, at 217 days against 249 in Lyon County and 180 in Shelby County. Its mean temperature is 56.4°F.
- Caldwell County: March 30 to November 2 (217 days, 0 WNV)
- Boyd County: March 31 to November 3 (217 days, 1 WNV)
- Lee County: March 31 to November 3 (217 days, 0 WNV)
- Owen County: March 31 to November 3 (217 days, 0 WNV)
West Nile in Clinton County
From 1999 to 2025, CDC ArboNET counted 2 human West Nile cases in Clinton County (0 neuroinvasive) across 2 years. The worst was 2003 with 1; the latest was 2003.
Background: when the season starts across the US; how the dates are worked out.