Reference Data in Isesaki 11 indicators covering reference data for Isesaki. IndicatorLatest Year10-yr change Rank Cooling and heating degree days - Cities and FUAs — Cooling degree 334.99 Degree days 2025 up 92.0% 358th Cooling and heating degree days - Cities and FUAs — Change in cooling 178.43 Degree days 2025 up 894.7% 67th Cooling and heating degree days - Cities and FUAs 2,150 Degree days 2025 up 11.6% 320th Cooling and heating degree days - Cities and FUAs — Change in heating -53.69 Degree days 2025 up 80.7% 190th Precipitation - Cities and FUAs — Extreme precipitation days 26.57 Days per year 2024 up 19.2% 94th Precipitation - Cities and FUAs — Change in extreme precipitation 6.15 Days per year 2024 up 230.9% 125th Dependency ratio - Cities and FUAs 49.9 Percentage of population aged 15-64 years 2020 up 34.1% 49th 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 6.3 Percentage of national value 2025 down 29.2% 623rd Internet speed - Cities and FUAs — Uploading speed 21 Percentage of national value 2025 up 624.1% 276th