Mosquito season in Wexford County, MI: when it starts and ends
Mosquito months in Wexford County
In a normal year mosquito season in Wexford County, MI starts around May 5 and ends around October 7, about 22 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Wexford County, and when
- Start tipping out standing water weekly by April 21.
- Book any yard treatment for early May, ahead of the July peak.
- Repellent can go away after October 7.
- No West Nile cases since 2016, so bites in Wexford County are a nuisance; check window screens.
Wexford County against the rest of MI
Wexford County has the 54th longest season of 83 MI counties, at 155 days against 189 in Allegan County and 124 in Iron County. Its mean temperature is 44.3°F.
- Antrim County: May 8 to October 11 (156 days, 0 WNV)
- Ogemaw County: May 5 to October 7 (155 days, 0 WNV)
- Clare County: May 6 to October 8 (155 days, 0 WNV)
- Charlevoix County: May 9 to October 11 (155 days, 0 WNV)
West Nile in Wexford County
From 1999 to 2025, CDC ArboNET counted 1 human West Nile case in Wexford County (1 neuroinvasive) across 1 year. The worst was 2015 with 1; the latest was 2015.
Background: when the season starts across the US; how the dates are worked out.