Mosquito season in Carter County, KY: when it starts and ends
Mosquito months in Carter County
In a normal year mosquito season in Carter County, KY starts around April 14 and ends around October 26, about 28 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Carter County, and when
- Start tipping out standing water weekly by March 31.
- Book any yard treatment for mid April, ahead of the July peak.
- Repellent can go away after October 26.
- No West Nile cases since 2016, so bites in Carter County are a nuisance; check window screens.
Carter County against the rest of KY
Carter County has the 115th longest season of 120 KY counties, at 195 days against 249 in Lyon County and 180 in Shelby County. Its mean temperature is 52.9°F.
- Lawrence County: April 12 to October 26 (197 days, 1 WNV)
- Lewis County: April 14 to October 27 (196 days, 0 WNV)
- Breckinridge County: April 14 to October 25 (194 days, 1 WNV)
- Grayson County: April 14 to October 24 (193 days, 0 WNV)
West Nile in Carter County
CDC ArboNET lists no human West Nile cases for Carter County from 1999 to 2025, though virus turned up in birds, mosquitoes or horses in 2 of those years.
See how the dates are worked out, and when the season starts across the US.