Mosquito season in Fayette County, IN: when it starts and ends
Mosquito months in Fayette County
In a normal year mosquito season in Fayette County, IN starts around April 14 and ends around October 23, about 27 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 31.
- Book any yard treatment for mid April, ahead of the July peak.
- Repellent can go away after October 23.
- No West Nile cases since 2016, so bites in Fayette County are a nuisance; check window screens.
Fayette County against the rest of IN
Fayette County has the 59th longest season of 92 IN counties, at 192 days against 231 in Floyd County and 177 in Steuben County. Its mean temperature is 50.8°F.
- Wabash County: April 14 to October 24 (193 days, 0 WNV)
- Cass County: April 14 to October 24 (192 days, 0 WNV)
- Porter County: April 15 to October 24 (192 days, 10 WNV)
- Ripley County: April 17 to October 26 (192 days, 1 WNV)
West Nile in Fayette County
CDC ArboNET lists no human West Nile cases for Fayette County from 1999 to 2025, though virus turned up in birds, mosquitoes or horses in 14 of those years.
Background: when the season starts across the US; how the dates are worked out.