Mosquito season in Wyoming County, NY: when it starts and ends
Mosquito months in Wyoming County
In a normal year mosquito season in Wyoming County, NY starts around May 5 and ends around October 9, about 22 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Wyoming 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 9.
- 2 West Nile cases since 2016 (last 2024): you should use repellent at dusk July, more so if over 60.
Wyoming County against the rest of NY
Wyoming County has the 52nd longest season of 62 NY counties, at 157 days against 218 in New York County and 125 in Franklin County. Its mean temperature is 44.4°F.
- Cortland County: May 4 to October 9 (158 days, 0 WNV)
- Delaware County: May 5 to October 10 (158 days, 0 WNV)
- Lewis County: May 4 to October 7 (156 days, 0 WNV)
- Washington County: May 5 to October 7 (155 days, 1 WNV)
West Nile in Wyoming County
From 1999 to 2025, CDC ArboNET counted 2 human West Nile cases in Wyoming County (2 neuroinvasive) across 2 years. The worst was 2024 with 1; the latest was 2024.
See how the dates are worked out, and when the season starts across the US.