Mosquito season in Potter County, PA: when it starts and ends
Mosquito months in Potter County
In a normal year mosquito season in Potter County, PA starts around May 3 and ends around October 8, about 23 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Potter County, and when
- Start tipping out standing water weekly by April 19.
- 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 2020): you should use repellent at dusk July, more so if over 60.
Potter County against the rest of PA
Potter County has the 64th longest season of 67 PA counties, at 158 days against 222 in Philadelphia County and 154 in Clinton County. Its mean temperature is 44.9°F.
- Susquehanna County: May 3 to October 9 (159 days, 0 WNV)
- Sullivan County: May 2 to October 8 (158 days, 0 WNV)
- Fayette County: May 5 to October 10 (158 days, 3 WNV)
- Warren County: May 8 to October 11 (156 days, 0 WNV)
West Nile in Potter County
From 1999 to 2025, CDC ArboNET counted 1 human West Nile case in Potter County (0 neuroinvasive) across 1 year. The worst was 2020 with 1; the latest was 2020.
See how the dates are worked out, and when the season starts across the US.