Mosquito season in Bell County, KY: when it starts and ends
Mosquito months in Bell County
In a normal year mosquito season in Bell County, KY starts around April 10 and ends around October 28, about 29 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Bell 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 28.
- No West Nile cases since 2016, so bites in Bell County are a nuisance; check window screens.
Bell County against the rest of KY
Bell County has the 105th longest season of 120 KY counties, at 201 days against 249 in Lyon County and 180 in Shelby County. Its mean temperature is 55.2°F.
- Marion County: April 11 to October 30 (202 days, 0 WNV)
- Taylor County: April 11 to October 30 (202 days, 0 WNV)
- Owsley County: April 11 to October 28 (200 days, 0 WNV)
- Hart County: April 10 to October 26 (199 days, 0 WNV)
West Nile in Bell County
From 1999 to 2025, CDC ArboNET counted 1 human West Nile case in Bell County (1 neuroinvasive) across 1 year. The worst was 2002 with 1; the latest was 2002.
See how the dates are worked out, and when the season starts across the US.