Mosquito season in Hart County, KY: when it starts and ends
Mosquito months in Hart County
In a normal year mosquito season in Hart County, KY starts around April 10 and ends around October 26, about 28 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Hart County, and when
- Start tipping out standing water weekly by March 27.
- Book any yard treatment for early April, ahead of the July peak.
- Repellent can go away after October 26.
- No West Nile cases since 2016, so bites in Hart County are a nuisance; check window screens.
Hart County against the rest of KY
Hart County has the 107th longest season of 120 KY counties, at 199 days against 249 in Lyon County and 180 in Shelby County. Its mean temperature is 56.3°F.
- Bell County: April 10 to October 28 (201 days, 0 WNV)
- Owsley County: April 11 to October 28 (200 days, 0 WNV)
- Spencer County: April 10 to October 25 (198 days, 0 WNV)
- Cumberland County: April 12 to October 27 (198 days, 0 WNV)
West Nile in Hart County
From 1999 to 2025, CDC ArboNET counted 1 human West Nile case in Hart County (1 neuroinvasive) across 1 year. The worst was 2003 with 1; the latest was 2003.
Background: when the season starts across the US; how the dates are worked out.