Reference Data in Derby 11 indicators covering reference data for Derby. IndicatorLatest Year10-yr change Rank Cooling and heating degree days - Cities and FUAs — Cooling degree 6.88 Degree days 2025 up 2.8% 1115th Cooling and heating degree days - Cities and FUAs — Change in cooling -3.95 Degree days 2025 up 4.5% 562nd Cooling and heating degree days - Cities and FUAs 1,820 Degree days 2025 down 12.1% 486th Cooling and heating degree days - Cities and FUAs — Change in heating -415.45 Degree days 2025 down 150.8% 881st Precipitation - Cities and FUAs — Extreme precipitation days 2.8 Days per year 2024 up 99.9% 1019th Precipitation - Cities and FUAs — Change in extreme precipitation 1.1 Days per year 2024 up 466.9% 639th Dependency ratio - Cities and FUAs 25 Percentage of population aged 15-64 years 2024 up 0.8% 831st 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 17.5 Percentage of national value 2025 down 43.5% 258th Internet speed - Cities and FUAs — Uploading speed 0.3 Percentage of national value 2025 up 103.8% 723rd