Mosquito season in Tippecanoe County, IN: when it starts and ends
Mosquito months in Tippecanoe County
In a normal year mosquito season in Tippecanoe County, IN starts around April 13 and ends around October 24, about 28 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Tippecanoe County, and when
- Start tipping out standing water weekly by March 30.
- Book any yard treatment for mid April, ahead of the July peak.
- Repellent can go away after October 24.
- 3 West Nile cases since 2016 (last 2023): you should use repellent at dusk June to August, more so if over 60.
Tippecanoe County against the rest of IN
Tippecanoe County has the 52nd longest season of 92 IN counties, at 194 days against 231 in Floyd County and 177 in Steuben County. Its mean temperature is 51.2°F.
- Morgan County: April 12 to October 25 (196 days, 2 WNV)
- Wayne County: April 12 to October 24 (195 days, 1 WNV)
- Warren County: April 13 to October 23 (193 days, 0 WNV)
- Miami County: April 14 to October 25 (193 days, 0 WNV)
West Nile in Tippecanoe County
From 1999 to 2025, CDC ArboNET counted 9 human West Nile cases in Tippecanoe County (7 neuroinvasive) across 6 years. The worst was 2012 with 4; the latest was 2023.
Background: when the season starts across the US; how the dates are worked out.