Mosquito season in White County, IN: when it starts and ends
Mosquito months in White County
In a normal year mosquito season in White County, IN starts around April 15 and ends around October 23, about 27 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in White County, and when
- Start tipping out standing water weekly by April 1.
- Book any yard treatment for mid April, ahead of the July peak.
- Repellent can go away after October 23.
- 1 West Nile case since 2016 (last 2018): you should use repellent at dusk June to August, more so if over 60.
White County against the rest of IN
White County has the 66th longest season of 92 IN counties, at 191 days against 231 in Floyd County and 177 in Steuben County. Its mean temperature is 50.2°F.
- Howard County: April 15 to October 23 (191 days, 5 WNV)
- Newton County: April 15 to October 22 (191 days, 0 WNV)
- Dearborn County: April 17 to October 25 (191 days, 0 WNV)
- Benton County: April 15 to October 22 (190 days, 0 WNV)
West Nile in White County
From 1999 to 2025, CDC ArboNET counted 3 human West Nile cases in White County (2 neuroinvasive) across 2 years. The worst was 2006 with 2; the latest was 2018.
Background: when mosquitoes go away for the winter; how the dates are worked out.