Reference Data in Oita 11 indicators covering reference data for Oita. IndicatorLatest Year10-yr change Rank Cooling and heating degree days - Cities and FUAs — Cooling degree 416.95 Degree days 2025 up 77.0% 272nd Cooling and heating degree days - Cities and FUAs — Change in cooling 122.17 Degree days 2025 up 306.4% 148th Cooling and heating degree days - Cities and FUAs 1,281 Degree days 2025 up 6.9% 782nd Cooling and heating degree days - Cities and FUAs — Change in heating -85.11 Degree days 2025 up 49.4% 249th Precipitation - Cities and FUAs — Extreme precipitation days 25.85 Days per year 2024 down 10.6% 105th Precipitation - Cities and FUAs — Change in extreme precipitation 2.91 Days per year 2024 down 51.4% 335th Dependency ratio - Cities and FUAs 50.9 Percentage of population aged 15-64 years 2020 up 49.3% 41st Wind threats - Cities and FUAs — Exposure to wind threats 1.02 Percentage of area 2023 — 256th Coastal flooding - Cities and FUAs — Built-up area exposure to 0.0533 Percentage of built-up area 2022 up 64.3% 201st Internet speed - Cities and FUAs — Downloading speed -16.1 Percentage of national value 2025 up 43.5% 1219th Internet speed - Cities and FUAs — Uploading speed -13.4 Percentage of national value 2025 down 396.3% 960th