Mosquito season in Owen County, IN: when it starts and ends
Mosquito months in Owen County
In a normal year mosquito season in Owen County, IN starts around April 7 and ends around October 27, about 29 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Owen County, and when
- Start tipping out standing water weekly by March 24.
- Book any yard treatment for early April, ahead of the July peak.
- Repellent can go away after October 27.
- No West Nile cases since 2016, so bites in Owen County are a nuisance; check window screens.
Owen County against the rest of IN
Owen County has the 34th longest season of 92 IN counties, at 203 days against 231 in Floyd County and 177 in Steuben County. Its mean temperature is 53°F.
- Franklin County: April 7 to October 28 (204 days, 0 WNV)
- Orange County: April 8 to October 29 (204 days, 1 WNV)
- Shelby County: April 8 to October 28 (203 days, 1 WNV)
- Ohio County: April 11 to October 31 (203 days, 1 WNV)
West Nile in Owen County
From 1999 to 2025, CDC ArboNET counted 1 human West Nile case in Owen County (0 neuroinvasive) across 1 year. The worst was 2012 with 1; the latest was 2012.
More: how the dates are worked out · when mosquitoes go away for the winter.