Essex County Climate
Essex County, New York
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
41.9°F
Annual Precip
42.4"
Annual Snowfall
90.9"
Extreme Heat Days
2
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
4b
Minimum winter temperature range for plant survival
1,747
Favors cool-season crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Essex County
Climate Verdict
Essex County has a cool, averaging 41.9°F annually, moderately wet with 42.4 inches of annual precipitation, rare extreme heat with only 2.2 days above 90°F annually, heavy winter snowfall averaging 90.9 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are very cold — January averages 16.0°F. summers are pleasantly cool with July averaging 65.8°F. The 50°F seasonal variation provides noticeable but manageable change.
Outdoor & Gardening Guidance
Winter sports enthusiasts benefit from reliable snow cover for 3-4 months annually.
Regional Context
Essex County is 5.6°F cooler than the New York statewide average of 47.5°F.
Climate Profile
About Essex County Weather
An exceptionally cold northern peak
Essex County is one of the coldest spots in the lower 48, with a 41.9°F average temperature. This is more than 13 degrees below the national median of 55°F.
At the bottom of the ranks
At 5.5 degrees below the state average, Essex ranks near the bottom of New York counties for temperature. Its 42.4 inches of precipitation is slightly below the state mean.
Colder than its northern neighbor
Essex is significantly colder than neighboring Clinton County, with a January average 2.4 degrees lower. However, it receives about 16 inches less snow than Clinton.
Deep freezes and cool summers
Winters are intense, averaging 18.8°F with nearly 91 inches of snow. Summers are the coolest in the region, peaking at a mild 65.8°F in July.
Prepare for extreme cold
Winter gear should be rated for sub-zero temperatures to handle the 16°F January nights. A backup generator is a wise choice for residents facing 90 inches of snow.
Frequently Asked Questions
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Data sources: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020. Forecast and alert data from National Weather Service API. Air quality data from Open-Meteo.
Climate normals are 30-year averages of weather variables. Station data is aggregated to county level. Forecasts and alerts are fetched live and may change frequently. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.