Reference Data in København 14 indicators covering reference data for København. IndicatorLatest Year10-yr change Rank Cooling and heating degree days - Cities and FUAs — Cooling degree 1.2 Degree days 2025 down 87.6% 1215th Cooling and heating degree days - Cities and FUAs — Change in cooling -14.08 Degree days 2025 down 150.1% 772nd Cooling and heating degree days - Cities and FUAs 2,116 Degree days 2025 down 6.3% 330th Cooling and heating degree days - Cities and FUAs — Change in heating -518.2 Degree days 2025 down 38.2% 1092nd Precipitation - Cities and FUAs — Extreme precipitation days 3 Days per year 2024 up 50.0% 968th Precipitation - Cities and FUAs — Change in extreme precipitation 1.23 Days per year 2024 up 428.4% 617th Dependency ratio - Cities and FUAs 21.2 Percentage of population aged 15-64 years 2025 up 2.4% 992nd Wind threats - Cities and FUAs — Exposure to wind threats 64.19 Percentage of area 2023 down 35.8% 116th Coastal flooding - Cities and FUAs — Built-up area exposure to 4.7 Percentage of built-up area 2022 up 0.0% 75th Internet speed - Cities and FUAs — Downloading speed 8.8 Percentage of national value 2025 down 36.7% 523rd Internet speed - Cities and FUAs — Uploading speed 1.3 Percentage of national value 2025 up 18.2% 693rd Correction coefficients in the European Union (Duty stations) - index 130.5 2025 down 1.0% 3rd Purchasing Power Parities in the European Union (Duty stations) 9.74 2025 down 1.0% 4th Nitrogen dioxide concentrations in European capital cities - monthly 7 2026 down 66.3% 28th