Reference Data in Warszawa 14 indicators covering reference data for Warszawa. IndicatorLatest Year10-yr change Rank Cooling and heating degree days - Cities and FUAs — Cooling degree 25.8 Degree days 2025 down 79.8% 912th Cooling and heating degree days - Cities and FUAs — Change in cooling -31.68 Degree days 2025 down 145.1% 1011th Cooling and heating degree days - Cities and FUAs 2,431 Degree days 2025 up 3.0% 194th Cooling and heating degree days - Cities and FUAs — Change in heating -355.26 Degree days 2025 up 16.6% 720th Precipitation - Cities and FUAs — Extreme precipitation days 0.5005 Days per year 2024 down 90.1% 1267th Precipitation - Cities and FUAs — Change in extreme precipitation -1.28 Days per year 2024 down 139.1% 1135th Dependency ratio - Cities and FUAs 30.8 Percentage of population aged 15-64 years 2024 up 11.2% 526th 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 29.8 Percentage of national value 2025 down 58.5% 81st Internet speed - Cities and FUAs — Uploading speed 5.3 Percentage of national value 2025 down 50.5% 610th Correction coefficients in the European Union (Duty stations) - index 82.3 2025 up 11.1% 28th Purchasing Power Parities in the European Union (Duty stations) 3.49 2025 up 16.1% 6th Nitrogen dioxide concentrations in European capital cities - monthly 15.2 2026 down 49.2% 10th