Mosquito season in Dubois County, IN: when it starts and ends
Mosquito months in Dubois County
In a normal year mosquito season in Dubois County, IN starts around March 31 and ends around November 4, about 31 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Dubois County, and when
- Start tipping out standing water weekly by March 17.
- Book any yard treatment for late March, ahead of the July peak.
- Repellent can go away after November 4.
- 1 West Nile case since 2016 (last 2021): you should use repellent at dusk June to August, more so if over 60.
Dubois County against the rest of IN
Dubois County has the 8th longest season of 92 IN counties, at 218 days against 231 in Floyd County and 177 in Steuben County. Its mean temperature is 55.6°F.
- Daviess County: March 30 to November 4 (219 days, 0 WNV)
- Warrick County: March 30 to November 3 (218 days, 1 WNV)
- Jefferson County: March 31 to November 4 (218 days, 2 WNV)
- Perry County: March 31 to November 4 (218 days, 1 WNV)
West Nile in Dubois County
From 1999 to 2025, CDC ArboNET counted 2 human West Nile cases in Dubois County (0 neuroinvasive) across 2 years. The worst was 2021 with 1; the latest was 2021.
See how the dates are worked out, and when the season starts across the US.