Mosquito season in Perry County, KY: when it starts and ends
Mosquito months in Perry County
In a normal year mosquito season in Perry County, KY starts around April 6 and ends around November 3, about 30 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Perry County, and when
- Start tipping out standing water weekly by March 23.
- Book any yard treatment for early April, ahead of the July peak.
- Repellent can go away after November 3.
- No West Nile cases since 2016, so bites in Perry County are a nuisance; check window screens.
Perry County against the rest of KY
Perry County has the 70th longest season of 120 KY counties, at 211 days against 249 in Lyon County and 180 in Shelby County. Its mean temperature is 55.5°F.
- Bracken County: April 4 to November 1 (211 days, 0 WNV)
- Fleming County: April 4 to November 1 (211 days, 0 WNV)
- Nicholas County: April 4 to October 31 (210 days, 0 WNV)
- Boone County: April 5 to November 1 (210 days, 1 WNV)
West Nile in Perry County
CDC ArboNET lists no human West Nile cases for Perry County from 1999 to 2025, though virus turned up in birds, mosquitoes or horses in 1 of those years.
Background: when mosquitoes go away for the winter; how the dates are worked out.