Mosquito season in Clinton County, NY: when it starts and ends
Mosquito months in Clinton County
In a normal year mosquito season in Clinton County, NY starts around May 1 and ends around October 10, about 23 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Clinton County, and when
- Start tipping out standing water weekly by April 17.
- Book any yard treatment for early May, ahead of the July peak.
- Repellent can go away after October 10.
- 2 West Nile cases since 2016 (last 2024): you should use repellent at dusk July, more so if over 60.
Clinton County against the rest of NY
Clinton County has the 42nd longest season of 62 NY counties, at 162 days against 218 in New York County and 125 in Franklin County. Its mean temperature is 44.7°F.
- Chenango County: May 1 to October 11 (163 days, 0 WNV)
- Steuben County: May 1 to October 11 (163 days, 1 WNV)
- Jefferson County: May 2 to October 11 (162 days, 1 WNV)
- Schuyler County: May 2 to October 11 (162 days, 0 WNV)
West Nile in Clinton County
From 1999 to 2025, CDC ArboNET counted 3 human West Nile cases in Clinton County (3 neuroinvasive) across 2 years. The worst was 2024 with 2; the latest was 2024.
Background: when mosquitoes go away for the winter; how the dates are worked out.