Reference Data in Leuven 15 indicators covering reference data for Leuven. IndicatorLatest Year10-yr change Rank Cooling and heating degree days - Cities and FUAs — Cooling degree 34.04 Degree days 2025 down 43.3% 848th Cooling and heating degree days - Cities and FUAs — Change in cooling -6.62 Degree days 2025 down 134.2% 627th Cooling and heating degree days - Cities and FUAs 1,639 Degree days 2025 down 11.6% 602nd Cooling and heating degree days - Cities and FUAs — Change in heating -450.34 Degree days 2025 down 91.7% 964th Cooling and heating degree days - Cities and FUAs — Change in heating -41.16 % change on previous year 2025 down 181.5% 717th Cooling and heating degree days - Cities and FUAs, annual growth rate -7.42 % change on previous year 2025 down 149.9% 661st Cooling and heating degree days - Cities and FUAs — Change in cooling -164.91 % change on previous year 2025 down 162.3% 862nd Cooling and heating degree days - Cities and FUAs — Cooling degree -33.08 % change on previous year 2025 down 130.7% 566th Precipitation - Cities and FUAs — Extreme precipitation days 4.4 Days per year 2024 up 57.1% 798th Precipitation - Cities and FUAs — Change in extreme precipitation 2.81 Days per year 2024 up 132.6% 349th Dependency ratio - Cities and FUAs 24.5 Percentage of population aged 15-64 years 2025 up 3.8% 846th 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 — Downloading speed -0.6 Percentage of national value 2025 down 107.5% 902nd Internet speed - Cities and FUAs — Uploading speed 7.2 Percentage of national value 2025 down 49.7% 555th