Mosquito season in Fayette County, OH: when it starts and ends
Mosquito months in Fayette County
In a normal year mosquito season in Fayette County, OH starts around April 11 and ends around October 25, about 28 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Fayette County, and when
- Start tipping out standing water weekly by March 28.
- Book any yard treatment for mid April, ahead of the July peak.
- Repellent can go away after October 25.
- No West Nile cases since 2016, so bites in Fayette County are a nuisance; check window screens.
Fayette County against the rest of OH
Fayette County has the 24th longest season of 88 OH counties, at 197 days against 209 in Gallia County and 177 in Ashtabula County. Its mean temperature is 51.8°F.
- Highland County: April 12 to October 27 (198 days, 1 WNV)
- Muskingum County: April 13 to October 28 (198 days, 0 WNV)
- Crawford County: April 13 to October 26 (197 days, 0 WNV)
- Cuyahoga County: April 17 to October 31 (197 days, 35 WNV)
West Nile in Fayette County
From 1999 to 2025, CDC ArboNET counted 1 human West Nile case in Fayette County (0 neuroinvasive) across 1 year. The worst was 2007 with 1; the latest was 2007.
More: how the dates are worked out · when the season starts across the US.