Reference Data in Tokyo 14 indicators covering reference data for Tokyo. IndicatorLatest Year10-yr change Rank Cooling and heating degree days - Cities and FUAs — Cooling degree 475.51 Degree days 2025 up 74.4% 227th Cooling and heating degree days - Cities and FUAs — Change in cooling 220.74 Degree days 2025 up 1,133.4% 40th Cooling and heating degree days - Cities and FUAs 1,257 Degree days 2025 down 4.2% 796th Cooling and heating degree days - Cities and FUAs — Change in heating -260.88 Degree days 2025 down 26.4% 564th Precipitation - Cities and FUAs — Extreme precipitation days 33.02 Days per year 2024 up 64.6% 52nd Precipitation - Cities and FUAs — Change in extreme precipitation 10.6 Days per year 2024 up 547.8% 37th Dependency ratio - Cities and FUAs 39 Percentage of population aged 15-64 years 2020 up 29.1% 204th Wind threats - Cities and FUAs — Exposure to wind threats 15.71 Percentage of area 2023 down 84.1% 183rd Coastal flooding - Cities and FUAs — Built-up area exposure to 0.0589 Percentage of built-up area 2022 up 4.1% 197th Internet speed - Cities and FUAs — Downloading speed 6 Percentage of national value 2025 down 61.8% 634th Internet speed - Cities and FUAs — Uploading speed 6.7 Percentage of national value 2025 up 179.2% 578th Correction coefficients outside the European Union (Duty stations) 83.9 2025 down 11.4% 77th Purchasing Power Parities outside the European Union (Duty stations) 142 2025 up 9.6% 53rd Correction coefficients outside the European Union (Duty stations) 83.9 2025 down 11.4% 78th