Mosquito season in Langlade County, WI: when it starts and ends
Mosquito months in Langlade County
In a normal year mosquito season in Langlade County, WI starts around May 8 and ends around October 2, about 21 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Langlade County, and when
- Start tipping out standing water weekly by April 24.
- Book any yard treatment for early May, ahead of the July peak.
- Repellent can go away after October 2.
- No West Nile cases since 2016, so bites in Langlade County are a nuisance; check window screens.
Langlade County against the rest of WI
Langlade County has the 62nd longest season of 72 WI counties, at 148 days against 180 in La Crosse County and 139 in Rusk County. Its mean temperature is 41.1°F.
- Lincoln County: May 7 to October 2 (148 days, 1 WNV)
- Sawyer County: May 7 to October 2 (148 days, 2 WNV)
- Price County: May 9 to October 1 (145 days, 1 WNV)
- Bayfield County: May 11 to October 3 (145 days, 1 WNV)
West Nile in Langlade County
From 1999 to 2025, CDC ArboNET counted 1 human West Nile case in Langlade County (1 neuroinvasive) across 1 year. The worst was 2012 with 1; the latest was 2012.
See how the dates are worked out, and when mosquitoes go away for the winter.