Mosquito season in Ogemaw County, MI: when it starts and ends
Mosquito months in Ogemaw County
In a normal year mosquito season in Ogemaw 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 Ogemaw 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 Ogemaw County are a nuisance; check window screens.
Ogemaw County against the rest of MI
Ogemaw County has the 53rd longest season of 83 MI counties, at 155 days against 189 in Allegan County and 124 in Iron County. Its mean temperature is 44°F.
- Osceola County: May 5 to October 7 (156 days, 0 WNV)
- Antrim County: May 8 to October 11 (156 days, 0 WNV)
- Wexford County: May 5 to October 7 (155 days, 0 WNV)
- Clare County: May 6 to October 8 (155 days, 0 WNV)
West Nile in Ogemaw County
From 1999 to 2025, CDC ArboNET counted 1 human West Nile case in Ogemaw 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.