Reference Data in Norwich 11 indicators covering reference data for Norwich. IndicatorLatest Year10-yr change Rank Cooling and heating degree days - Cities and FUAs — Cooling degree 1.81 Degree days 2025 down 79.8% 1196th Cooling and heating degree days - Cities and FUAs — Change in cooling -7.98 Degree days 2025 down 888.8% 653rd Cooling and heating degree days - Cities and FUAs 1,300 Degree days 2025 down 28.0% 775th Cooling and heating degree days - Cities and FUAs — Change in heating -697.13 Degree days 2025 down 265.0% 1213th Precipitation - Cities and FUAs — Extreme precipitation days 2.8 Days per year 2024 up 27.3% 1018th Precipitation - Cities and FUAs — Change in extreme precipitation 1.46 Days per year 2024 up 69.7% 575th Dependency ratio - Cities and FUAs 21.2 Percentage of population aged 15-64 years 2024 down 1.4% 992nd 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 0.6 Percentage of national value 2025 down 97.7% 871st Internet speed - Cities and FUAs — Uploading speed -32.9 Percentage of national value 2025 down 311.2% 1195th