Reference Data in Oslo 33 indicators covering reference data for Oslo. IndicatorLatest Year10-yr change Rank Cooling and heating degree days - Cities and FUAs — Cooling degree 18 % change on previous year 2025 up 122.5% 31st Cooling and heating degree days - Cities and FUAs — Change in cooling 9.21 % change on previous year 2025 up 104.2% 78th Cooling and heating degree days - Cities and FUAs, annual growth rate -9.41 % change on previous year 2025 down 285.9% 738th Cooling and heating degree days - Cities and FUAs — Change in heating -146.94 % change on previous year 2025 down 598.6% 1085th Cooling and heating degree days - Cities and FUAs — Change in heating -707.46 Degree days 2025 down 43.8% 1209th Cooling and heating degree days - Cities and FUAs 4,051 Degree days 2025 down 5.0% 10th Cooling and heating degree days - Cities and FUAs — Change in cooling -3.98 Degree days 2025 up 12.6% 559th Cooling and heating degree days - Cities and FUAs — Cooling degree 2.65 Degree days 2025 up 27.7% 1170th Precipitation - Cities and FUAs — Change in extreme precipitation 1.33 Days per year 2024 up 23.9% 595th Precipitation - Cities and FUAs — Extreme precipitation days 6.79 Days per year 2024 up 3.9% 593rd Cooling and heating degree days by NUTS 2 regions - annual data 3,849 Number 2025 down 6.4% 66th Cooling and heating degree days by NUTS 2 regions - monthly data 521.9 Number 2025 down 1.8% 116th Dependency ratio - Cities and FUAs 20.1 Percentage of population aged 15-64 years 2025 up 9.8% 1017th Wind threats - Cities and FUAs — Exposure to wind threats 0 Percentage of area 2023 — 271st Coastal flooding - Cities and FUAs — Built-up area exposure to 0 Percentage of built-up area 2022 — 277th Deaths (total) by NUTS 3 region 3,944 Number 2024 down 0.3% 928th Internet speed - Cities and FUAs — Uploading speed 7.1 Percentage of national value 2025 up 130.9% 559th Internet speed - Cities and FUAs — Downloading speed 16.9 Percentage of national value 2025 up 191.4% 272nd Deaths by week, sex and NUTS 3 region 66 Number 2026 down 34.7% 836th Deaths by week and NUTS 3 region 66 Number 2026 down 34.7% 836th Deaths by week, sex, 5-year age group and NUTS 3 region 66 Number 2026 down 34.7% 831st Correction coefficients outside the European Union (Duty stations) 115.8 Index 2025 down 14.6% 18th Purchasing Power Parities outside the European Union (Duty stations) 13.66 Purchasing power standard (PPS) 2025 up 14.4% 92nd Road accidents by NUTS 3 region 341 Number 2024 — 1103rd Correction coefficients outside the European Union (Duty stations) 115.8 Index 2025 down 14.6% 16th National road freight transport by region of unloading (NUTS 3) and 15,505 Thousand tonnes 2025 — 348th National road freight transport by region of loading (NUTS 3) and 24,541 Thousand tonnes 2025 — 133rd Police-recorded offences by NUTS 3 region 3 Number 2024 — 624th Nights spent at tourist accommodation establishments by NUTS 3 region 6.93 million Number 2025 up 202.9% 353rd Deaths by age group, sex and NUTS 3 region 3,944 Number 2024 down 0.3% 926th Guest nights spent at short-stay accommodation offered via 1.36 million Number 2025 up 60.7% 171st Nights spent at tourist accommodation establishments by NUTS 3 region 6.93 million Number 2025 up 202.9% 103rd Nitrogen dioxide concentrations in European capital cities - monthly 9.8 Micrograms per cubic metre 2026 down 75.7% 25th