Mosquito season in Morgan County, KY: when it starts and ends
Mosquito months in Morgan County
In a normal year mosquito season in Morgan County, KY starts around April 17 and ends around October 26, about 27 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Morgan County, and when
- Start tipping out standing water weekly by April 3.
- 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 Morgan County are a nuisance; check window screens.
Morgan County against the rest of KY
Morgan County has the 118th longest season of 120 KY counties, at 192 days against 249 in Lyon County and 180 in Shelby County. Its mean temperature is 54.1°F.
- Breckinridge County: April 14 to October 25 (194 days, 1 WNV)
- Grayson County: April 14 to October 24 (193 days, 0 WNV)
- Clay County: April 17 to October 24 (190 days, 0 WNV)
- Shelby County: April 24 to October 21 (180 days, 0 WNV)
West Nile in Morgan County
CDC ArboNET lists no human West Nile cases for Morgan County from 1999 to 2025, though virus turned up in birds, mosquitoes or horses in 2 of those years.
Background: when mosquitoes go away for the winter; how the dates are worked out.