Reference Data in Hamm 11 indicators covering reference data for Hamm. IndicatorLatest Year10-yr change Rank Cooling and heating degree days - Cities and FUAs — Cooling degree 38.58 Degree days 2025 down 39.4% 823rd Cooling and heating degree days - Cities and FUAs — Change in cooling -5.66 Degree days 2025 down 129.2% 604th Cooling and heating degree days - Cities and FUAs 2,083 Degree days 2025 up 3.8% 343rd Cooling and heating degree days - Cities and FUAs — Change in heating -211.24 Degree days 2025 up 26.4% 478th Precipitation - Cities and FUAs — Extreme precipitation days 3.86 Days per year 2024 down 3.6% 878th Precipitation - Cities and FUAs — Change in extreme precipitation 1.79 Days per year 2024 down 7.4% 508th Dependency ratio - Cities and FUAs 34.1 Percentage of population aged 15-64 years 2025 up 8.9% 362nd 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 -8.1 Percentage of national value 2025 down 145.5% 1111th Internet speed - Cities and FUAs — Uploading speed -25.6 Percentage of national value 2025 down 220.0% 1121st