Reference Data in Sunderland 11 indicators covering reference data for Sunderland. IndicatorLatest Year10-yr change Rank Cooling and heating degree days - Cities and FUAs — Cooling degree 1.28 Degree days 2025 down 44.3% 1213th Cooling and heating degree days - Cities and FUAs — Change in cooling -2.84 Degree days 2025 down 56.3% 528th Cooling and heating degree days - Cities and FUAs 1,904 Degree days 2025 down 13.6% 446th Cooling and heating degree days - Cities and FUAs — Change in heating -424.03 Degree days 2025 down 244.4% 905th Precipitation - Cities and FUAs — Extreme precipitation days 3.4 Days per year 2024 up 240.0% 930th Precipitation - Cities and FUAs — Change in extreme precipitation 1.63 Days per year 2024 up 310.4% 548th Dependency ratio - Cities and FUAs 32.9 Percentage of population aged 15-64 years 2024 up 17.1% 425th Wind threats - Cities and FUAs — Exposure to wind threats 0 Percentage of area 2023 down 100.0% 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 12.1 Percentage of national value 2025 up 445.7% 417th Internet speed - Cities and FUAs — Uploading speed 19.2 Percentage of national value 2025 up 265.5% 312th