Reference Data in Washtenaw 12 indicators covering reference data for Washtenaw. IndicatorLatest Year10-yr change Rank Cooling and heating degree days - Cities and FUAs — Cooling degree 147.59 Degree days 2025 down 3.1% 576th Cooling and heating degree days - Cities and FUAs — Change in cooling -34.13 Degree days 2025 down 16.2% 1030th Cooling and heating degree days - Cities and FUAs 2,801 Degree days 2025 down 1.4% 104th Cooling and heating degree days - Cities and FUAs — Change in heating -47.03 Degree days 2025 down 597.7% 177th Precipitation - Cities and FUAs — Extreme precipitation days 9.22 Days per year 2024 up 38.3% 498th Precipitation - Cities and FUAs — Change in extreme precipitation 0.8903 Days per year 2024 up 153.4% 677th Dependency ratio - Cities and FUAs 24.3 Percentage of population aged 15-64 years 2024 up 45.5% 865th 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 145,686 Persons 2023 down 7.8% 123rd Internet speed - Cities and FUAs — Downloading speed 1.5 Percentage of national value 2025 up 50.0% 830th Internet speed - Cities and FUAs — Uploading speed -19.8 Percentage of national value 2025 up 46.3% 1050th