Reference Data in Detroit (Greater) 16 indicators covering reference data for Detroit (Greater). IndicatorLatest Year10-yr change Rank Cooling and heating degree days - Cities and FUAs — Cooling degree 143.08 Degree days 2025 down 3.0% 577th Cooling and heating degree days - Cities and FUAs — Change in cooling -40.39 Degree days 2025 down 12.5% 1064th Cooling and heating degree days - Cities and FUAs 2,661 Degree days 2025 down 7.2% 130th Cooling and heating degree days - Cities and FUAs — Change in heating -198.11 Degree days 2025 down 2,346.5% 458th Cooling and heating degree days - Cities and FUAs — Change in heating 60.51 % change on previous year 2025 up 161.7% 197th Cooling and heating degree days - Cities and FUAs, annual growth rate 12.87 % change on previous year 2025 up 193.7% 157th Cooling and heating degree days - Cities and FUAs — Change in cooling -423.24 % change on previous year 2025 down 1,159.7% 1241st Cooling and heating degree days - Cities and FUAs — Cooling degree -26.99 % change on previous year 2025 down 239.8% 474th Precipitation - Cities and FUAs — Extreme precipitation days 8.56 Days per year 2024 up 13.3% 518th Precipitation - Cities and FUAs — Change in extreme precipitation 0.4962 Days per year 2024 up 197.6% 760th Dependency ratio - Cities and FUAs 28.8 Percentage of population aged 15-64 years 2024 up 30.9% 642nd Wind threats - Cities and FUAs — Exposure to wind threats 0 Percentage of area 2023 — 271st Coastal flooding - Cities and FUAs — Built-up area exposure to 0 Percentage of built-up area 2022 — 277th Main mode of transport to work - Cities and FUAs — Employed persons 1.55 million Persons 2023 up 0.3% 14th Internet speed - Cities and FUAs — Downloading speed 3.4 Percentage of national value 2025 down 29.2% 753rd Internet speed - Cities and FUAs — Uploading speed -38.3 Percentage of national value 2025 down 12.6% 1220th