Mosquito season in Livingston County, NY: when it starts and ends
Mosquito months in Livingston County
In a normal year mosquito season in Livingston County, NY starts around April 27 and ends around October 17, about 25 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Livingston County, and when
- Start tipping out standing water weekly by April 13.
- Book any yard treatment for late April, ahead of the July peak.
- Repellent can go away after October 17.
- 2 West Nile cases since 2016 (last 2018): you should use repellent at dusk July to July, more so if over 60.
Livingston County against the rest of NY
Livingston County has the 23rd longest season of 62 NY counties, at 173 days against 218 in New York County and 125 in Franklin County. Its mean temperature is 47.8°F.
- Saratoga County: April 23 to October 16 (175 days, 3 WNV)
- Genesee County: April 27 to October 17 (174 days, 1 WNV)
- Onondaga County: April 27 to October 17 (173 days, 10 WNV)
- Cayuga County: April 28 to October 16 (171 days, 0 WNV)
West Nile in Livingston County
From 1999 to 2025, CDC ArboNET counted 2 human West Nile cases in Livingston County (2 neuroinvasive) across 1 year. The worst was 2018 with 2; the latest was 2018.
More: how the dates are worked out · when mosquitoes go away for the winter.