Mosquito season in Rush County, IN: when it starts and ends
Mosquito months in Rush County
In a normal year mosquito season in Rush County, IN 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 Rush 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 Rush County are a nuisance; check window screens.
Rush County against the rest of IN
Rush County has the 46th longest season of 92 IN counties, at 197 days against 231 in Floyd County and 177 in Steuben County. Its mean temperature is 51.7°F.
- Hancock County: April 11 to October 25 (198 days, 2 WNV)
- Hamilton County: April 11 to October 25 (197 days, 10 WNV)
- Blackford County: April 12 to October 26 (196 days, 0 WNV)
- Fountain County: April 12 to October 25 (196 days, 0 WNV)
West Nile in Rush County
From 1999 to 2025, CDC ArboNET counted 1 human West Nile case in Rush County (0 neuroinvasive) across 1 year. The worst was 2003 with 1; the latest was 2003.
More: how the dates are worked out · when the season starts across the US.