Reference Data in Durham 12 indicators covering reference data for Durham. IndicatorLatest Year10-yr change Rank Cooling and heating degree days - Cities and FUAs — Cooling degree 399.71 Degree days 2025 down 25.2% 291st Cooling and heating degree days - Cities and FUAs — Change in cooling -75.82 Degree days 2025 down 229.3% 1187th Cooling and heating degree days - Cities and FUAs 1,275 Degree days 2025 up 5.5% 786th Cooling and heating degree days - Cities and FUAs — Change in heating -18 Degree days 2025 up 78.7% 135th Precipitation - Cities and FUAs — Extreme precipitation days 17.14 Days per year 2024 up 21.8% 238th Precipitation - Cities and FUAs — Change in extreme precipitation 3.09 Days per year 2024 up 17,448.9% 309th Dependency ratio - Cities and FUAs 22.3 Percentage of population aged 15-64 years 2024 up 40.3% 955th 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 Main mode of transport to work - Cities and FUAs — Employed persons 136,309 Persons 2023 up 6.5% 132nd Internet speed - Cities and FUAs — Downloading speed 21.6 Percentage of national value 2025 down 23.9% 162nd Internet speed - Cities and FUAs — Uploading speed 46.7 Percentage of national value 2025 down 38.5% 84th