Reference Data in Siegen 11 indicators covering reference data for Siegen. IndicatorLatest Year10-yr change Rank Cooling and heating degree days - Cities and FUAs — Cooling degree 19.81 Degree days 2025 down 59.6% 981st Cooling and heating degree days - Cities and FUAs — Change in cooling -5.15 Degree days 2025 down 121.4% 596th Cooling and heating degree days - Cities and FUAs 2,640 Degree days 2025 up 4.9% 136th Cooling and heating degree days - Cities and FUAs — Change in heating -146.66 Degree days 2025 up 45.6% 356th Precipitation - Cities and FUAs — Extreme precipitation days 8.5 Days per year 2024 up 50.0% 528th Precipitation - Cities and FUAs — Change in extreme precipitation 3.22 Days per year 2024 up 738.1% 291st Dependency ratio - Cities and FUAs 32 Percentage of population aged 15-64 years 2025 up 4.6% 466th 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 -4.3 Percentage of national value 2025 down 114.4% 1020th Internet speed - Cities and FUAs — Uploading speed -39.9 Percentage of national value 2025 down 470.0% 1237th