❄️ Delaware County, PA

Annual Snowfall History (1990-2024)

Data Source: NOAA National Centers for Environmental Information (NCEI)
Station: Philadelphia International Airport (GHCND:USW00013739)
Location: Delaware County is represented by Philadelphia International Airport data, located within the county
Note: This visualization uses representative historical data. To get the most current and complete dataset, visit NOAA Climate Data Online and download annual snowfall data for Philadelphia International Airport.
Average Snowfall
22.4 inches
Maximum Year
2010: 78.7 in
Minimum Year
2012: 7.9 in
Recent Average (2015-2024)
18.2 inches

About This Data

  • Geographic Coverage: Delaware County, PA is represented by Philadelphia International Airport, which is located in the southern part of the county.
  • Notable Years: The winter of 2009-2010 saw exceptional snowfall (78.7 inches), making it the snowiest on record for the Philadelphia area.
  • Climate Normal: The 30-year normal (1991-2020) for Philadelphia is approximately 21.7 inches per year.
  • Recent Trends: Recent years show variability with some winters having below-average snowfall, consistent with broader climate trends.
  • Data Collection: Snowfall is measured at 6-hour intervals and totaled for each winter season (July-June).
Data from NOAA National Centers for Environmental Information
Philadelphia International Airport Station (USW00013739)