Reference Data in Witten 11 indicators covering reference data for Witten. IndicatorLatest Year10-yr change Rank Cooling and heating degree days - Cities and FUAs — Cooling degree 32.2 Degree days 2025 down 46.4% 867th Cooling and heating degree days - Cities and FUAs — Change in cooling -8.89 Degree days 2025 down 146.7% 678th Cooling and heating degree days - Cities and FUAs 1,845 Degree days 2025 down 9.1% 471st Cooling and heating degree days - Cities and FUAs — Change in heating -461.36 Degree days 2025 down 66.7% 1004th Precipitation - Cities and FUAs — Extreme precipitation days 5.6 Days per year 2024 up 21.7% 690th Precipitation - Cities and FUAs — Change in extreme precipitation 2.21 Days per year 2024 up 82.4% 433rd Dependency ratio - Cities and FUAs 38.4 Percentage of population aged 15-64 years 2025 up 9.7% 226th 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 Internet speed - Cities and FUAs — Downloading speed -4.7 Percentage of national value 2025 down 127.5% 1032nd Internet speed - Cities and FUAs — Uploading speed -43 Percentage of national value 2025 down 372.5% 1259th