Reference Data in Bolzano 15 indicators covering reference data for Bolzano. IndicatorLatest Year10-yr change Rank Cooling and heating degree days - Cities and FUAs — Cooling degree 25.8 Degree days 2025 down 67.0% 905th Cooling and heating degree days - Cities and FUAs — Change in cooling -4.77 Degree days 2025 down 110.0% 583rd Cooling and heating degree days - Cities and FUAs 2,985 Degree days 2025 up 29.3% 67th Cooling and heating degree days - Cities and FUAs — Change in heating 94.68 Degree days 2025 up 116.3% 41st Cooling and heating degree days - Cities and FUAs — Change in heating 116.63 % change on previous year 2025 up 587.9% 55th Cooling and heating degree days - Cities and FUAs, annual growth rate 28.6 % change on previous year 2025 up 716.1% 36th Cooling and heating degree days - Cities and FUAs — Change in cooling -112.98 % change on previous year 2025 down 121.4% 593rd Cooling and heating degree days - Cities and FUAs — Cooling degree -61.7 % change on previous year 2025 down 120.4% 907th Precipitation - Cities and FUAs — Extreme precipitation days 16 Days per year 2024 up 14.3% 266th Precipitation - Cities and FUAs — Change in extreme precipitation 5.93 Days per year 2024 up 50.9% 134th Dependency ratio - Cities and FUAs 38.6 Percentage of population aged 15-64 years 2024 up 2.4% 215th 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 18.4 Percentage of national value 2025 up 26.9% 234th Internet speed - Cities and FUAs — Uploading speed 30 Percentage of national value 2025 up 259.6% 186th