Reference Data in Solingen 11 indicators covering reference data for Solingen. IndicatorLatest Year10-yr change Rank Cooling and heating degree days - Cities and FUAs — Cooling degree 24.47 Degree days 2025 down 62.2% 927th Cooling and heating degree days - Cities and FUAs — Change in cooling -18.77 Degree days 2025 down 187.2% 850th Cooling and heating degree days - Cities and FUAs 1,387 Degree days 2025 down 31.3% 735th Cooling and heating degree days - Cities and FUAs — Change in heating -897.21 Degree days 2025 down 238.7% 1293rd Precipitation - Cities and FUAs — Extreme precipitation days 6.75 Days per year 2024 up 31.7% 601st Precipitation - Cities and FUAs — Change in extreme precipitation 2.26 Days per year 2024 up 255.6% 427th Dependency ratio - Cities and FUAs 35.1 Percentage of population aged 15-64 years 2025 up 5.1% 323rd 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 -12.4 Percentage of national value 2025 down 175.6% 1177th Internet speed - Cities and FUAs — Uploading speed -40.8 Percentage of national value 2025 down 209.1% 1244th