Mosquito season in Menominee County, WI: when it starts and ends
Mosquito months in Menominee County
In a normal year mosquito season in Menominee County, WI starts around May 4 and ends around October 5, about 22 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Menominee County, and when
- Start tipping out standing water weekly by April 20.
- Book any yard treatment for early May, ahead of the July peak.
- Repellent can go away after October 5.
- No West Nile cases since 2016, so bites in Menominee County are a nuisance; check window screens.
Menominee County against the rest of WI
Menominee County has the 54th longest season of 72 WI counties, at 154 days against 180 in La Crosse County and 139 in Rusk County. Its mean temperature is 42.8°F.
- Oconto County: May 4 to October 6 (155 days, 2 WNV)
- Door County: May 9 to October 11 (155 days, 0 WNV)
- Kewaunee County: May 9 to October 10 (154 days, 2 WNV)
- Manitowoc County: May 11 to October 11 (153 days, 3 WNV)
West Nile in Menominee County
CDC ArboNET lists no human West Nile cases for Menominee County from 1999 to 2025, though virus turned up in birds, mosquitoes or horses in 2 of those years.
Background: when the season starts across the US; how the dates are worked out.