Essex County Climate
Essex County, New York
Avg Annual Temp
41.9°F
Annual Precip
42.4"
Annual Snowfall
90.9"
Extreme Heat Days
2.2
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
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 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.