Mosquito season in Presque Isle County, MI: when it starts and ends
Mosquito months in Presque Isle County
In a normal year mosquito season in Presque Isle County, MI starts around May 8 and ends around October 8, about 22 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Presque Isle 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 8.
- 1 West Nile case since 2016 (last 2019): you should use repellent at dusk July, more so if over 60.
Presque Isle County against the rest of MI
Presque Isle County has the 58th longest season of 83 MI counties, at 153 days against 189 in Allegan County and 124 in Iron County. Its mean temperature is 43.9°F.
- Charlevoix County: May 9 to October 11 (155 days, 0 WNV)
- Roscommon County: May 4 to October 5 (154 days, 0 WNV)
- Cheboygan County: May 9 to October 8 (152 days, 0 WNV)
- Alpena County: May 10 to October 8 (151 days, 0 WNV)
West Nile in Presque Isle County
From 1999 to 2025, CDC ArboNET counted 1 human West Nile case in Presque Isle County (1 neuroinvasive) across 1 year. The worst was 2019 with 1; the latest was 2019.
More: how the dates are worked out · when the season starts across the US.