Oneida County Climate
Oneida County, New York
Avg Annual Temp
45.2°F
Annual Precip
48.9"
Annual Snowfall
157.7"
Extreme Heat Days
3.72
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Oneida County Weather
Cold and Snowy Central Hub
Oneida County averages 45.2°F annually, making it significantly colder than the national median. Its position makes it a prime target for heavy lake-effect precipitation.
Colder than the New York Average
At 45.2°F, Oneida County sits more than two degrees below the New York state average. It is characterized by long, snowy winters and relatively short, mild summers.
A Local Leader in Snowfall
With 157.7 inches of annual snowfall, Oneida is far snowier than Niagara's 69.1 inches. It also exceeds the state average for total precipitation, recording 48.9 inches annually.
Mild Summers and Brutal Winters
January temperatures average a freezing 19.9°F, and the county sees only four days over 90°F all year. July is pleasant at 68.6°F, providing a brief break from the moisture.
Winter Preparedness is Non-Negotiable
Homeowners must prioritize heavy-duty heating and roof maintenance to handle 157.7 inches of snow. Summier cooling needs are minimal, but dehumidification is helpful given the 48.9 inches of annual rain.
Frequently Asked Questions
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Data source: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020.
Climate normals are 30-year averages of weather variables computed from 1991 to 2020. Station data is aggregated to county level using spatial averaging. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.