Cooling and heating degree days - Cities and FUAs in Torrejón de Ardoz
Torrejón de Ardoz: Cooling and heating degree days - Cities and FUAs was 1,668 Degree days in 2025. ▼ Falling
Cooling and heating degree days - Cities and FUAs in Torrejón de Ardoz, 1950–2025
Source: Organisation for Economic Co-operation and Development. Measured in Degree days.
Analysis
Torrejón de Ardoz recorded 1,668 Degree days for cooling and heating degree days - cities and fuas in 2025.
Compared with earlier readings it is up 27.6% on the previous year and up 24.9% over ten years.
Over the whole period, cooling and heating degree days - cities and fuas in Torrejón de Ardoz peaked at 1,966 Degree days in 1956 and was at its lowest, 1,238 Degree days, in 1997.
That places Torrejón de Ardoz 587th out of 1323 regions with data for 2025, putting it in the middle of the range.
The long-run direction has been consistently falling across the 76 years of available data.
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1950s | 1,675 Degree days | 1,427 Degree days | 1,966 Degree days | 10 |
| 1960s | 1,695 Degree days | 1,402 Degree days | 1,922 Degree days | 10 |
| 1970s | 1,709 Degree days | 1,511 Degree days | 1,833 Degree days | 10 |
| 1980s | 1,570 Degree days | 1,331 Degree days | 1,769 Degree days | 10 |
| 1990s | 1,509 Degree days | 1,238 Degree days | 1,758 Degree days | 10 |
| 2000s | 1,503 Degree days | 1,402 Degree days | 1,652 Degree days | 10 |
| 2010s | 1,450 Degree days | 1,291 Degree days | 1,679 Degree days | 10 |
| 2020s | 1,379 Degree days | 1,244 Degree days | 1,668 Degree days | 6 |
More reference data data for Torrejón de Ardoz
- Cooling and heating degree days - Cities and FUAs — Cooling degree 597.82 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs — Change in cooling 229.47 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs — Change in heating 141.95 Degree days (2025)
- Precipitation - Cities and FUAs — Extreme precipitation days 4 Days per year (2024)
- Precipitation - Cities and FUAs — Change in extreme precipitation 1.57 Days per year (2024)
- Dependency ratio - Cities and FUAs 22.7 Percentage of population aged 15-64 years (2022)
- Wind threats - Cities and FUAs — Exposure to wind threats 0 Percentage of area (2023)
- Coastal flooding - Cities and FUAs — Built-up area exposure to 0 Percentage of built-up area (2022)
- Internet speed - Cities and FUAs — Downloading speed 42.9 Percentage of national value (2025)
- Internet speed - Cities and FUAs — Uploading speed 39.3 Percentage of national value (2025)
Frequently asked questions
- What is cooling and heating degree days - cities and fuas in Torrejón de Ardoz?
- Cooling and heating degree days - cities and fuas in Torrejón de Ardoz was 1,668 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 Torrejón de Ardoz?
- The highest recorded value was 1,966 Degree days in 1956.
- What is the lowest cooling and heating degree days - cities and fuas recorded in Torrejón de Ardoz?
- The lowest recorded value was 1,238 Degree days in 1997.
- How does Torrejón de Ardoz rank for cooling and heating degree days - cities and fuas?
- Torrejón de Ardoz ranks 587th out of 1323 regions with data for 2025.
- Is cooling and heating degree days - cities and fuas rising or falling in Torrejón de Ardoz?
- Over the last ten years it is up 24.9%. The long-run trend across the full record is falling.
- Where does this Torrejón de Ardoz 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
<p align="justify">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.</p> <h3>Data sources and methodology</h3> <p align="justify"> The indicators use 0.1-degree resolution grids from the <a href=https://developers.google.com/earth-engine/datasets/catalog/ECMWF_ERA5_LAND_DAILY_AGGR>ERA5-Land dataset</a>. 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.</p> <p align="justify"> 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. </p> <h3>Defining FUAs and cities</h3> <p align="justify">The OECD, in cooperation with the EU, has developed a harmonised <a href="https://www.oecd.org/en/data/datasets/oecd-definition-of-cities-and-functional-urban-areas.html">definition of functional urban areas</a> (FUAs) to capture the economic and functional reach of cities based on daily commuting patterns <a href=https://doi.org/10.1787/9789264174108-en>(OECD, 2012)</a>. FUAs consist of: <ol> <li><b>A city</b> – defined by urban centres in the degree of urbanisation, adapted to the closest local administrative units to define a city.</li> <li><b>A commuting zone</b> – including all local areas where at least 15% of employed residents work in the city.</li> </ol> The delineation process includes: <ul> <li>Assigning municipalities surrounded by a single FUA to that FUA.</li> <li>Excluding non-contiguous municipalities.</li> </ul> <p> The correspondence table between SAUs and FUAs/cities is available in <a href=https://webfs-cfe.oecd.org/files/.Stat/cities_local_areas/fua_cities_sau_mapping.parquet>parquet </a> and <a href=https://webfs-cfe.oecd.org/files/.Stat/cities_local_areas/fua_cities_sau_mapping.csv>csv</a> format. </p> The definition identifies 1 272 FUAs and 1 269 cities in all OECD member countries except Costa Rica and three accession countries.</p> <h3>Cite this dataset</h3> <p>OECD Regions, cities and local areas database (<a href="http://data-explorer.oecd.org/s/1dj">Cooling and heating degree days - Cities and FUAs</a>), <a href=http://oe.cd/geostats>http://oe.cd/geostats</a></p> <h3>Further information</h3> <ul> <li> <a href=https://localdataportal.oecd.org/>OECD Local Data Portal </a> </li> <li> <a href=https://www.oecd.org/en/publications/oecd-regions-and-cities-at-a-glance-2024_f42db3bf-en.html/>OECD Regions and Cities at a Glance </a> </li> </ul> <p align="justify">For questions and/or comments, please email <a href="mailto:CitiesStat@oecd.org">CitiesStat@oecd.org</a>