Erie County Climate
Erie County, Pennsylvania
Avg Annual Temp
49.0°F
Annual Precip
46.0"
Annual Snowfall
109.3"
Extreme Heat Days
2.8000000000000003
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Erie County Weather
A Chilly Lakefront Climate
Erie's 49.0°F annual average reflects a humid continental climate that sits below the national median temperature. This cooler profile results in longer, more sustained winters compared to much of the United States.
Cooler Than the State Average
At 49.0°F, Erie is nearly a full degree cooler than the Pennsylvania average of 49.9°F. It ranks among the state's cloudier and chillier northern tier counties due to its unique position on the Great Lakes.
Regional Lake Effects
While neighboring Forest County enjoys a 49.9°F average, Erie remains colder because of its northern latitude. Its 46.0 inches of precipitation slightly exceeds the state average of 45.3 inches.
Famous Snow and Mild Summers
Winters are intense with a staggering 109.3 inches of snowfall and January lows of 26.3°F. Conversely, summers remain very mild with only 3 days per year topping 90°F.
Gear Up for Deep Snow
Residents must prioritize high-capacity snow removal equipment and heavy-duty winter apparel to handle the 100-inch seasons. Robust home insulation is also essential to combat the sustained lake-effect cold.
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.