Reference Data in Jefferson (KY) 12 indicators covering reference data for Jefferson (KY). IndicatorLatest Year10-yr change Rank Cooling and heating degree days - Cities and FUAs — Cooling degree 324.8 Degree days 2025 down 13.8% 369th Cooling and heating degree days - Cities and FUAs — Change in cooling -65.91 Degree days 2025 down 380.5% 1164th Cooling and heating degree days - Cities and FUAs 1,785 Degree days 2025 up 1.9% 507th Cooling and heating degree days - Cities and FUAs — Change in heating -66.48 Degree days 2025 up 33.7% 219th Precipitation - Cities and FUAs — Extreme precipitation days 16.2 Days per year 2024 up 39.0% 263rd Precipitation - Cities and FUAs — Change in extreme precipitation 2.49 Days per year 2024 up 221.2% 392nd Dependency ratio - Cities and FUAs 27.8 Percentage of population aged 15-64 years 2024 up 26.9% 694th Wind threats - Cities and FUAs — Exposure to wind threats 0 Percentage of area 2023 down 100.0% 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 334,348 Persons 2023 up 0.2% 56th Internet speed - Cities and FUAs — Downloading speed 13 Percentage of national value 2025 up 73.3% 389th Internet speed - Cities and FUAs — Uploading speed 66.2 Percentage of national value 2025 up 168.0% 24th