Essex County Climate
Essex County, Vermont
Avg Annual Temp
40.4°F
Annual Precip
42.2"
Annual Snowfall
97.9"
Extreme Heat Days
1.7999999999999998
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Essex County Weather
The Coldest Corner of Vermont
Essex County averages just 40.4°F annually, one of the lowest figures in the continental United States. This subarctic-leaning climate is nearly 14 degrees colder than the national median.
The State’s Thermal Cellar
Essex ranks as the coldest county in Vermont, falling 3.2 degrees below the state average. It represents the peak of Vermont’s reputation for long, harsh winters.
Colder Than Its Neighbors
Essex is nearly a degree colder than Caledonia and over 6 degrees colder than Chittenden. Its remote, northern location keeps it consistently chilled year-round.
Severe Winters and Cool Summers
January temperatures average a brutal 12.7°F with nearly 98 inches of annual snowfall. Summers are fleeting, with July averaging 65.0°F and only 2 days of extreme heat.
Maximized Heating and Insulation
Residents must prioritize high-performance heating systems and sub-zero rated outdoor gear. With only 2 days of heat, AC is rarely needed, but winterizing pipes is critical.
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.