Reference Data in Mannheim 11 indicators covering reference data for Mannheim. IndicatorLatest Year10-yr change Rank Cooling and heating degree days - Cities and FUAs — Cooling degree 81.01 Degree days 2025 down 56.6% 691st Cooling and heating degree days - Cities and FUAs — Change in cooling -7.86 Degree days 2025 down 108.0% 650th Cooling and heating degree days - Cities and FUAs 1,825 Degree days 2025 down 3.3% 482nd Cooling and heating degree days - Cities and FUAs — Change in heating -374.15 Degree days 2025 down 20.3% 764th Precipitation - Cities and FUAs — Extreme precipitation days 2.88 Days per year 2024 up 360.3% 1001st Precipitation - Cities and FUAs — Change in extreme precipitation 0.7627 Days per year 2024 up 151.3% 708th Dependency ratio - Cities and FUAs 27.4 Percentage of population aged 15-64 years 2025 down 0.7% 720th 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 20.6 Percentage of national value 2025 down 19.2% 175th Internet speed - Cities and FUAs — Uploading speed -19.3 Percentage of national value 2025 up 5.9% 1045th