Reference Data in Belfast 11 indicators covering reference data for Belfast. IndicatorLatest Year10-yr change Rank Cooling and heating degree days - Cities and FUAs — Cooling degree 0 Degree days 2025 down 100.0% 1263rd Cooling and heating degree days - Cities and FUAs — Change in cooling -0.4155 Degree days 2025 down 7.8% 482nd Cooling and heating degree days - Cities and FUAs 1,571 Degree days 2025 down 28.9% 650th Cooling and heating degree days - Cities and FUAs — Change in heating -609.25 Degree days 2025 down 2,148.6% 1171st Precipitation - Cities and FUAs — Extreme precipitation days 1 Days per year 2024 down 69.0% 1216th Precipitation - Cities and FUAs — Change in extreme precipitation -1.9 Days per year 2024 down 690.3% 1209th Dependency ratio - Cities and FUAs 22.5 Percentage of population aged 15-64 years 2024 up 3.2% 944th 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 0.341 Percentage of built-up area 2022 up 20.7% 139th Internet speed - Cities and FUAs — Downloading speed 14.2 Percentage of national value 2025 down 48.6% 351st Internet speed - Cities and FUAs — Uploading speed -26.3 Percentage of national value 2025 down 1,653.3% 1125th