Reference Data in Philadelphia (Greater) 16 indicators covering reference data for Philadelphia (Greater). IndicatorLatest Year10-yr change Rank Cooling and heating degree days - Cities and FUAs — Cooling degree 221.54 Degree days 2025 down 34.7% 468th Cooling and heating degree days - Cities and FUAs — Change in cooling -80.09 Degree days 2025 down 314.2% 1194th Cooling and heating degree days - Cities and FUAs 1,927 Degree days 2025 down 3.3% 432nd Cooling and heating degree days - Cities and FUAs — Change in heating -101.67 Degree days 2025 down 186.4% 278th Cooling and heating degree days - Cities and FUAs — Change in heating 57.83 % change on previous year 2025 up 151.0% 207th Cooling and heating degree days - Cities and FUAs, annual growth rate 7.8 % change on previous year 2025 up 159.6% 227th Cooling and heating degree days - Cities and FUAs — Change in cooling -213.08 % change on previous year 2025 down 231.9% 1034th Cooling and heating degree days - Cities and FUAs — Cooling degree -40.52 % change on previous year 2025 down 199.4% 681st Precipitation - Cities and FUAs — Extreme precipitation days 13.67 Days per year 2024 up 4.0% 344th Precipitation - Cities and FUAs — Change in extreme precipitation -0.4347 Days per year 2024 up 54.6% 954th Dependency ratio - Cities and FUAs 26.6 Percentage of population aged 15-64 years 2024 up 26.7% 759th Wind threats - Cities and FUAs — Exposure to wind threats 0 Percentage of area 2023 down 100.0% 271st Coastal flooding - Cities and FUAs — Built-up area exposure to 0.727 Percentage of built-up area 2022 up 0.9% 120th Main mode of transport to work - Cities and FUAs — Employed persons 1.65 million Persons 2023 down 2.7% 12th Internet speed - Cities and FUAs — Downloading speed -1.1 Percentage of national value 2025 down 104.1% 920th Internet speed - Cities and FUAs — Uploading speed -4.4 Percentage of national value 2025 down 109.3% 807th