Mosquito season in Scott County, IN: when it starts and ends
Mosquito months in Scott County
In a normal year mosquito season in Scott County, IN starts around April 5 and ends around October 31, about 30 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Scott County, and when
- Start tipping out standing water weekly by March 22.
- Book any yard treatment for early April, ahead of the July peak.
- Repellent can go away after October 31.
- No West Nile cases since 2016, so bites in Scott County are a nuisance; check window screens.
Scott County against the rest of IN
Scott County has the 23rd longest season of 92 IN counties, at 209 days against 231 in Floyd County and 177 in Steuben County. Its mean temperature is 54.9°F.
- Clay County: April 3 to October 29 (209 days, 1 WNV)
- Bartholomew County: April 4 to October 30 (209 days, 4 WNV)
- Decatur County: April 5 to October 29 (207 days, 0 WNV)
- Delaware County: April 6 to October 30 (207 days, 6 WNV)
West Nile in Scott County
From 1999 to 2025, CDC ArboNET counted 1 human West Nile case in Scott County (1 neuroinvasive) across 1 year. The worst was 2013 with 1; the latest was 2013.
Background: when mosquitoes go away for the winter; how the dates are worked out.