Reference Data in Portland 12 indicators covering reference data for Portland. IndicatorLatest Year10-yr change Rank Cooling and heating degree days - Cities and FUAs — Cooling degree 48.02 Degree days 2025 down 74.9% 778th Cooling and heating degree days - Cities and FUAs — Change in cooling -75.54 Degree days 2025 down 211.9% 1185th Cooling and heating degree days - Cities and FUAs 1,928 Degree days 2025 up 7.6% 431st Cooling and heating degree days - Cities and FUAs — Change in heating -314.4 Degree days 2025 up 30.3% 648th Precipitation - Cities and FUAs — Extreme precipitation days 26.64 Days per year 2024 down 5.8% 93rd Precipitation - Cities and FUAs — Change in extreme precipitation 5.24 Days per year 2024 down 23.8% 157th Dependency ratio - Cities and FUAs 23.6 Percentage of population aged 15-64 years 2024 up 32.6% 903rd 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 Main mode of transport to work - Cities and FUAs — Employed persons 779,962 Persons 2023 up 2.1% 24th Internet speed - Cities and FUAs — Downloading speed 1.8 Percentage of national value 2025 down 73.5% 821st Internet speed - Cities and FUAs — Uploading speed 10.6 Percentage of national value 2025 up 157.9% 477th