Reference Data in Ljubljana 18 indicators covering reference data for Ljubljana. IndicatorLatest Year10-yr change Rank Cooling and heating degree days - Cities and FUAs — Cooling degree -52.74 % change on previous year 2025 down 126.2% 821st Cooling and heating degree days - Cities and FUAs — Change in cooling -86.7 % change on previous year 2025 down 118.6% 440th Cooling and heating degree days - Cities and FUAs, annual growth rate 5.89 % change on previous year 2025 down 63.0% 265th Cooling and heating degree days - Cities and FUAs — Change in heating 36.92 % change on previous year 2025 down 26.0% 259th Cooling and heating degree days - Cities and FUAs — Cooling degree 85.34 Degree days 2025 down 42.7% 672nd Cooling and heating degree days - Cities and FUAs — Change in cooling 14.61 Degree days 2025 down 81.3% 391st Cooling and heating degree days - Cities and FUAs 2,261 Degree days 2025 up 3.9% 274th Cooling and heating degree days - Cities and FUAs — Change in heating -214.77 Degree days 2025 up 28.4% 479th Precipitation - Cities and FUAs — Extreme precipitation days 14.75 Days per year 2024 down 25.8% 298th Precipitation - Cities and FUAs — Change in extreme precipitation 1.68 Days per year 2024 down 75.3% 537th Dependency ratio - Cities and FUAs 31.1 Percentage of population aged 15-64 years 2025 up 18.3% 505th Wind threats - Cities and FUAs — Exposure to wind threats 0 Percentage of area 2023 — 271st Coastal flooding - Cities and FUAs — Built-up area exposure to 0 Percentage of built-up area 2022 — 277th Internet speed - Cities and FUAs — Uploading speed 17.6 Percentage of national value 2025 down 29.6% 348th Internet speed - Cities and FUAs — Downloading speed 14 Percentage of national value 2025 down 14.1% 355th Correction coefficients in the European Union (Duty stations) - index 86.6 Index 2025 up 6.7% 25th Purchasing Power Parities in the European Union (Duty stations) 0.866 Index 2025 up 6.7% 29th Nitrogen dioxide concentrations in European capital cities - monthly 16.5 Micrograms per cubic metre 2026 down 56.5% 9th