Mosquito season in Green County, KY: when it starts and ends
Mosquito months in Green County
In a normal year mosquito season in Green County, KY starts around April 1 and ends around November 4, about 31 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Green County, and when
- Start tipping out standing water weekly by March 18.
- Book any yard treatment for early April, ahead of the July peak.
- Repellent can go away after November 4.
- No West Nile cases since 2016, so bites in Green County are a nuisance; check window screens.
Green County against the rest of KY
Green County has the 42nd longest season of 120 KY counties, at 217 days against 249 in Lyon County and 180 in Shelby County. Its mean temperature is 56.9°F.
- Owen County: March 31 to November 3 (217 days, 0 WNV)
- Woodford County: March 31 to November 3 (217 days, 1 WNV)
- Boyle County: March 31 to November 2 (216 days, 0 WNV)
- Scott County: March 31 to November 2 (216 days, 0 WNV)
West Nile in Green County
From 1999 to 2025, CDC ArboNET counted 1 human West Nile case in Green County (1 neuroinvasive) across 1 year. The worst was 2002 with 1; the latest was 2002.
More: how the dates are worked out · when the season starts across the US.