Cooling and heating degree days - Cities and FUAs (heating Cities) in Trondheim
Trondheim: Cooling and heating degree days - Cities and FUAs (heating Cities) was 3,462 Degree days in 2025. ▼ Falling
Cooling and heating degree days - Cities and FUAs in Trondheim, 1950–2025
Source: Organisation for Economic Co-operation and Development. Measured in Degree days.
Analysis
In 2025, cooling and heating degree days - cities and fuas in Trondheim stood at 3,462 Degree days. That is the lowest value across all 76 years on record.
The figure is down 11.4% on the previous year and down 11.5% over ten years.
Over the whole period, cooling and heating degree days - cities and fuas in Trondheim peaked at 5,344 Degree days in 1966 and was at its lowest, 3,462 Degree days, in 2025.
That places Trondheim 31st out of 1314 regions with data for 2025, putting it in the top 10%.
The long-run direction has been consistently falling across the 76 years of available data.
Cooling and heating degree days - Cities and FUAs (heating Cities) in Trondheim, year by year
| Year | Degree days | Change |
|---|---|---|
| 1950 | 4,637 Degree days | — |
| 1951 | 4,697 Degree days | +1.3% |
| 1952 | 5,045 Degree days | +7.4% |
| 1953 | 4,140 Degree days | -17.9% |
| 1954 | 4,730 Degree days | +14.3% |
| 1955 | 4,929 Degree days | +4.2% |
| 1956 | 4,968 Degree days | +0.8% |
| 1957 | 4,596 Degree days | -7.5% |
| 1958 | 4,925 Degree days | +7.1% |
| 1959 | 4,245 Degree days | -13.8% |
| 1960 | 4,843 Degree days | +14.1% |
| 1961 | 4,474 Degree days | -7.6% |
| 1962 | 5,033 Degree days | +12.5% |
| 1963 | 4,733 Degree days | -6.0% |
| 1964 | 4,567 Degree days | -3.5% |
| 1965 | 4,982 Degree days | +9.1% |
| 1966 | 5,344 Degree days | +7.3% |
| 1967 | 4,557 Degree days | -14.7% |
| 1968 | 4,891 Degree days | +7.3% |
| 1969 | 4,984 Degree days | +1.9% |
| 1970 | 4,870 Degree days | -2.3% |
| 1971 | 4,496 Degree days | -7.7% |
| 1972 | 4,435 Degree days | -1.3% |
| 1973 | 4,480 Degree days | +1.0% |
| 1974 | 4,299 Degree days | -4.0% |
| 1975 | 4,227 Degree days | -1.7% |
| 1976 | 4,781 Degree days | +13.1% |
| 1977 | 4,788 Degree days | +0.2% |
| 1978 | 4,959 Degree days | +3.6% |
| 1979 | 5,001 Degree days | +0.8% |
| 1980 | 4,812 Degree days | -3.8% |
| 1981 | 4,930 Degree days | +2.5% |
| 1982 | 4,489 Degree days | -9.0% |
| 1983 | 4,366 Degree days | -2.7% |
| 1984 | 4,454 Degree days | +2.0% |
| 1985 | 4,917 Degree days | +10.4% |
| 1986 | 4,735 Degree days | -3.7% |
| 1987 | 4,679 Degree days | -1.2% |
| 1988 | 4,269 Degree days | -8.8% |
| 1989 | 4,025 Degree days | -5.7% |
| 1990 | 3,750 Degree days | -6.8% |
| 1991 | 4,121 Degree days | +9.9% |
| 1992 | 4,203 Degree days | +2.0% |
| 1993 | 4,547 Degree days | +8.2% |
| 1994 | 4,646 Degree days | +2.2% |
| 1995 | 4,417 Degree days | -4.9% |
| 1996 | 4,736 Degree days | +7.2% |
| 1997 | 4,255 Degree days | -10.1% |
| 1998 | 4,326 Degree days | +1.7% |
| 1999 | 4,170 Degree days | -3.6% |
| 2000 | 4,043 Degree days | -3.0% |
| 2001 | 4,425 Degree days | +9.4% |
| 2002 | 4,132 Degree days | -6.6% |
| 2003 | 4,026 Degree days | -2.6% |
| 2004 | 4,142 Degree days | +2.9% |
| 2005 | 4,008 Degree days | -3.2% |
| 2006 | 3,913 Degree days | -2.4% |
| 2007 | 4,202 Degree days | +7.4% |
| 2008 | 4,075 Degree days | -3.0% |
| 2009 | 4,205 Degree days | +3.2% |
| 2010 | 5,283 Degree days | +25.6% |
| 2011 | 3,976 Degree days | -24.7% |
| 2012 | 4,505 Degree days | +13.3% |
| 2013 | 4,339 Degree days | -3.7% |
| 2014 | 3,708 Degree days | -14.5% |
| 2015 | 3,913 Degree days | +5.5% |
| 2016 | 4,129 Degree days | +5.5% |
| 2017 | 4,130 Degree days | +0.0% |
| 2018 | 4,184 Degree days | +1.3% |
| 2019 | 4,225 Degree days | +1.0% |
| 2020 | 3,884 Degree days | -8.1% |
| 2021 | 4,424 Degree days | +13.9% |
| 2022 | 4,091 Degree days | -7.5% |
| 2023 | 4,464 Degree days | +9.1% |
| 2024 | 3,906 Degree days | -12.5% |
| 2025 | 3,462 Degree days | -11.4% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1950s | 4,691 Degree days | 4,140 Degree days | 5,045 Degree days | 10 |
| 1960s | 4,841 Degree days | 4,474 Degree days | 5,344 Degree days | 10 |
| 1970s | 4,633 Degree days | 4,227 Degree days | 5,001 Degree days | 10 |
| 1980s | 4,568 Degree days | 4,025 Degree days | 4,930 Degree days | 10 |
| 1990s | 4,317 Degree days | 3,750 Degree days | 4,736 Degree days | 10 |
| 2000s | 4,117 Degree days | 3,913 Degree days | 4,425 Degree days | 10 |
| 2010s | 4,239 Degree days | 3,708 Degree days | 5,283 Degree days | 10 |
| 2020s | 4,038 Degree days | 3,462 Degree days | 4,464 Degree days | 6 |
More reference data data for Trondheim
- Cooling and heating degree days - Cities and FUAs — Cooling degree 11.54 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs — Change in cooling 5.96 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs — Change in heating -888.13 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs — Change in heating -100.42 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs, annual growth rate -11.39 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs — Change in cooling -2.92 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs — Cooling degree -1.53 % change on previous year (2025)
- Precipitation - Cities and FUAs — Extreme precipitation days 10.11 Days per year (2024)
- Precipitation - Cities and FUAs — Change in extreme precipitation 5.08 Days per year (2024)
- Dependency ratio - Cities and FUAs 23 Percentage of population aged 15-64 years (2025)
Frequently asked questions
- What is cooling and heating degree days - cities and fuas in Trondheim?
- Cooling and heating degree days - cities and fuas in Trondheim was 3,462 Degree days in 2025, according to Organisation for Economic Co-operation and Development.
- What is the highest cooling and heating degree days - cities and fuas recorded in Trondheim?
- The highest recorded value was 5,344 Degree days in 1966.
- What is the lowest cooling and heating degree days - cities and fuas recorded in Trondheim?
- The lowest recorded value was 3,462 Degree days in 2025.
- How does Trondheim rank for cooling and heating degree days - cities and fuas?
- Trondheim ranks 31st out of 1314 regions with data for 2025.
- Is cooling and heating degree days - cities and fuas rising or falling in Trondheim?
- Over the last ten years it is down 11.5%. The long-run trend across the full record is falling.
- Where does this Trondheim data come from?
- The figures come from Organisation for Economic Co-operation and Development, published as part of Cooling and heating degree days - Cities and FUAs. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 76 observations, free to reuse under OECD Terms and Conditions (attribution required).
About this data
This dataset provides indicators of Cooling and Heating Degree Days (CDDs and HDDs) for FUAs and cities. CDDs and HDDs are measurements used to estimate energy usage based on outdoor temperature. CDD measures the demand for cooling, while HDD measures the demand for heating, both calculated relative to a baseline temperature. Data sources and methodology The indicators use 0.1-degree resolution grids from the ERA5-Land dataset. ERA5-Land is used as it provides harmonised, globally consistent coverage at fine spatial resolution (0.1 degree), enabling the production of comparable subnational indicators also where national meteorological data are not available at the required scale. Annual CDDs are the sum over a year of the differences between the daily mean outdoor air temperature and the threshold temperature when the outdoor temperature is above the threshold temperature. HDDs are the sum over a year of the differences between the threshold temperature and the daily mean outdoor air temperature when the outdoor temperature is below the threshold temperature. Threshold temperatures are set to 22°C for CDDs and 15°C for HDDs. These estimates may differ from official subnational climate statistics due to differences in methodological approaches, such as the use of reanalysis based top down modelling versus in situ observations, along with variations in input data sources, spatial resolution, and the models and algorithms used to generate temperature estimates. Defining FUAs and cities The OECD, in cooperation with the EU, has developed a harmonised definition of functional urban areas (FUAs) to capture the economic and functional reach of cities based on daily commuting patterns (OECD, 2012). FUAs consist of: A city – defined by urban centres in the degree of urbanisation, adapted to the closest local administrative units to define a city. A commuting zone – including all local areas where at least 15% of employed residents work in the city. The delineation process includes: Assigning municipalities surrounded by a single FUA to that FUA. Excluding non-contiguous municipalities. The correspondence table between SAUs and FUAs/cities is available in parquet and csv format. The definition identifies 1 272 FUAs and 1 269 cities in all OECD member countries except Costa Rica and three accession countries. Cite this dataset OECD Regions, cities and local areas database (Cooling and heating degree days - Cities and FUAs), http://oe.cd/geostats Further information OECD Local Data Portal OECD Regions and Cities at a Glance For questions and/or comments, please email CitiesStat@oecd.org