Reference Data in Erfurt 11 indicators covering reference data for Erfurt. IndicatorLatest Year10-yr change Rank Cooling and heating degree days - Cities and FUAs — Cooling degree 25.41 Degree days 2025 down 71.8% 914th Cooling and heating degree days - Cities and FUAs — Change in cooling -16.83 Degree days 2025 down 135.1% 826th Cooling and heating degree days - Cities and FUAs 2,235 Degree days 2025 down 4.1% 288th Cooling and heating degree days - Cities and FUAs — Change in heating -440.04 Degree days 2025 down 27.4% 950th Precipitation - Cities and FUAs — Extreme precipitation days 2.8 Days per year 2024 down 12.5% 1016th Precipitation - Cities and FUAs — Change in extreme precipitation 0.7534 Days per year 2024 down 34.7% 711th Dependency ratio - Cities and FUAs 36.8 Percentage of population aged 15-64 years 2025 up 12.9% 271st 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 -9.3 Percentage of national value 2025 down 22.4% 1137th Internet speed - Cities and FUAs — Uploading speed -36.4 Percentage of national value 2025 down 184.4% 1213th