Reference Data in Swindon 11 indicators covering reference data for Swindon. IndicatorLatest Year10-yr change Rank Cooling and heating degree days - Cities and FUAs — Cooling degree 12.54 Degree days 2025 up 73.6% 1055th Cooling and heating degree days - Cities and FUAs — Change in cooling -0.669 Degree days 2025 up 88.8% 487th Cooling and heating degree days - Cities and FUAs 1,712 Degree days 2025 down 11.1% 556th Cooling and heating degree days - Cities and FUAs — Change in heating -422.08 Degree days 2025 down 102.0% 901st Precipitation - Cities and FUAs — Extreme precipitation days 4.3 Days per year 2024 up 115.0% 815th Precipitation - Cities and FUAs — Change in extreme precipitation 2.56 Days per year 2024 up 896.4% 383rd Dependency ratio - Cities and FUAs 25 Percentage of population aged 15-64 years 2024 up 10.6% 831st 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 19.4 Percentage of national value 2025 up 12.8% 200th Internet speed - Cities and FUAs — Uploading speed 21.9 Percentage of national value 2025 up 330.5% 264th