Mosquito season in Piscataquis County, ME: when it starts and ends
Mosquito months in Piscataquis County
In a normal year mosquito season in Piscataquis County, ME starts around May 14 and ends around September 30, about 20 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Piscataquis County, and when
- Start tipping out standing water weekly by April 30.
- Book any yard treatment for mid May, ahead of the July peak.
- Repellent can go away after September 30.
- No West Nile cases since 2016, so bites in Piscataquis County are a nuisance; check window screens.
Piscataquis County against the rest of ME
Piscataquis County has the 14th longest season of 16 ME counties, at 139 days against 164 in Kennebec County and 133 in Franklin County. Its mean temperature is 40.1°F.
- Oxford County: May 8 to October 4 (149 days, 0 WNV)
- Aroostook County: May 11 to October 1 (142 days, 0 WNV)
- Somerset County: May 15 to September 29 (138 days, 0 WNV)
- Franklin County: May 17 to September 27 (133 days, 0 WNV)
West Nile in Piscataquis County
CDC ArboNET lists no human West Nile cases for Piscataquis County from 1999 to 2025, though virus turned up in birds, mosquitoes or horses in 2 of those years.
More: how the dates are worked out · when the season starts across the US.