Mosquito season in Rockcastle County, KY: when it starts and ends
Mosquito months in Rockcastle County
In a normal year mosquito season in Rockcastle County, KY starts around April 2 and ends around November 3, about 31 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Rockcastle County, and when
- Start tipping out standing water weekly by March 19.
- 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 Rockcastle County are a nuisance; check window screens.
Rockcastle County against the rest of KY
Rockcastle County has the 51st longest season of 120 KY counties, at 215 days against 249 in Lyon County and 180 in Shelby County. Its mean temperature is 55.4°F.
- Hardin County: April 1 to November 2 (215 days, 0 WNV)
- Harlan County: April 1 to November 2 (215 days, 0 WNV)
- Franklin County: April 3 to November 4 (215 days, 1 WNV)
- Pendleton County: April 3 to November 4 (215 days, 0 WNV)
West Nile in Rockcastle County
CDC ArboNET lists no human West Nile cases for Rockcastle 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.