Reference Data in Bielsko-Biała 11 indicators covering reference data for Bielsko-Biała. IndicatorLatest Year10-yr change Rank Cooling and heating degree days - Cities and FUAs — Cooling degree 4.47 Degree days 2025 down 95.7% 1153rd Cooling and heating degree days - Cities and FUAs — Change in cooling -23.8 Degree days 2025 down 131.9% 926th Cooling and heating degree days - Cities and FUAs 2,573 Degree days 2025 down 3.8% 154th Cooling and heating degree days - Cities and FUAs — Change in heating -539.2 Degree days 2025 down 23.6% 1114th Precipitation - Cities and FUAs — Extreme precipitation days 5.86 Days per year 2024 down 31.7% 668th Precipitation - Cities and FUAs — Change in extreme precipitation -0.0759 Days per year 2024 down 102.9% 885th Dependency ratio - Cities and FUAs 38.9 Percentage of population aged 15-64 years 2024 up 52.0% 210th 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 7.2 Percentage of national value 2025 up 24.1% 586th Internet speed - Cities and FUAs — Uploading speed 21.1 Percentage of national value 2025 down 3.7% 275th