Reference Data in Biel/Bienne 11 indicators covering reference data for Biel/Bienne. IndicatorLatest Year10-yr change Rank Cooling and heating degree days - Cities and FUAs — Cooling degree 33.83 Degree days 2025 down 66.0% 857th Cooling and heating degree days - Cities and FUAs — Change in cooling -3.26 Degree days 2025 down 105.2% 540th Cooling and heating degree days - Cities and FUAs 2,252 Degree days 2025 down 6.4% 279th Cooling and heating degree days - Cities and FUAs — Change in heating -405.48 Degree days 2025 down 60.7% 853rd Precipitation - Cities and FUAs — Extreme precipitation days 7.5 Days per year 2024 up 36.4% 562nd Precipitation - Cities and FUAs — Change in extreme precipitation -0.7749 Days per year 2024 up 72.1% 1036th Dependency ratio - Cities and FUAs 30.4 Percentage of population aged 15-64 years 2023 up 0.3% 551st 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 15.9 Percentage of national value 2025 up 117.8% 296th Internet speed - Cities and FUAs — Uploading speed 18.3 Percentage of national value 2025 up 190.5% 335th