Reference Data in Detroit (Greater) 12 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% 582nd Cooling and heating degree days - Cities and FUAs — Change in cooling -40.39 Degree days 2025 down 12.5% 1069th 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% 460th Precipitation - Cities and FUAs — Extreme precipitation days 8.56 Days per year 2024 up 13.3% 524th Precipitation - Cities and FUAs — Change in extreme precipitation 0.4962 Days per year 2024 up 197.6% 767th Dependency ratio - Cities and FUAs 28.8 Percentage of population aged 15-64 years 2024 up 30.9% 646th Wind threats - Cities and FUAs — Exposure to wind threats 0 Percentage of area 2023 — 273rd 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% 759th Internet speed - Cities and FUAs — Uploading speed -38.3 Percentage of national value 2025 down 12.6% 1229th