Cooling and heating degree days - Cities and FUAs (heating Cities) in Zaragoza
Zaragoza: Cooling and heating degree days - Cities and FUAs (heating Cities) was 1,035 Degree days in 2025. ▼ Falling
Cooling and heating degree days - Cities and FUAs in Zaragoza, 1950–2025
Source: Organisation for Economic Co-operation and Development. Measured in Degree days.
Analysis
Zaragoza recorded 1,035 Degree days for cooling and heating degree days - cities and fuas in 2025. That is the lowest value across all 76 years on record.
That represents a change of down 7.2% on the previous year and down 15.1% over ten years.
Over the whole period, cooling and heating degree days - cities and fuas in Zaragoza peaked at 1,778 Degree days in 1956 and was at its lowest, 1,035 Degree days, in 2025.
That places Zaragoza 870th out of 1314 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.
Cooling and heating degree days - Cities and FUAs (heating Cities) in Zaragoza, year by year
| Year | Degree days | Change |
|---|---|---|
| 1950 | 1,377 Degree days | — |
| 1951 | 1,555 Degree days | +13.0% |
| 1952 | 1,426 Degree days | -8.3% |
| 1953 | 1,484 Degree days | +4.1% |
| 1954 | 1,548 Degree days | +4.3% |
| 1955 | 1,285 Degree days | -17.0% |
| 1956 | 1,778 Degree days | +38.3% |
| 1957 | 1,403 Degree days | -21.1% |
| 1958 | 1,367 Degree days | -2.6% |
| 1959 | 1,358 Degree days | -0.7% |
| 1960 | 1,442 Degree days | +6.2% |
| 1961 | 1,205 Degree days | -16.5% |
| 1962 | 1,569 Degree days | +30.3% |
| 1963 | 1,662 Degree days | +5.9% |
| 1964 | 1,589 Degree days | -4.4% |
| 1965 | 1,541 Degree days | -3.1% |
| 1966 | 1,341 Degree days | -12.9% |
| 1967 | 1,485 Degree days | +10.7% |
| 1968 | 1,375 Degree days | -7.4% |
| 1969 | 1,726 Degree days | +25.5% |
| 1970 | 1,504 Degree days | -12.9% |
| 1971 | 1,580 Degree days | +5.1% |
| 1972 | 1,616 Degree days | +2.3% |
| 1973 | 1,572 Degree days | -2.7% |
| 1974 | 1,512 Degree days | -3.8% |
| 1975 | 1,541 Degree days | +1.9% |
| 1976 | 1,512 Degree days | -1.9% |
| 1977 | 1,340 Degree days | -11.4% |
| 1978 | 1,433 Degree days | +7.0% |
| 1979 | 1,437 Degree days | +0.3% |
| 1980 | 1,579 Degree days | +9.9% |
| 1981 | 1,300 Degree days | -17.6% |
| 1982 | 1,311 Degree days | +0.8% |
| 1983 | 1,345 Degree days | +2.6% |
| 1984 | 1,533 Degree days | +14.0% |
| 1985 | 1,514 Degree days | -1.2% |
| 1986 | 1,456 Degree days | -3.9% |
| 1987 | 1,372 Degree days | -5.7% |
| 1988 | 1,315 Degree days | -4.2% |
| 1989 | 1,172 Degree days | -10.9% |
| 1990 | 1,288 Degree days | +9.9% |
| 1991 | 1,530 Degree days | +18.8% |
| 1992 | 1,433 Degree days | -6.3% |
| 1993 | 1,496 Degree days | +4.4% |
| 1994 | 1,180 Degree days | -21.1% |
| 1995 | 1,125 Degree days | -4.7% |
| 1996 | 1,325 Degree days | +17.8% |
| 1997 | 1,092 Degree days | -17.5% |
| 1998 | 1,303 Degree days | +19.3% |
| 1999 | 1,382 Degree days | +6.1% |
| 2000 | 1,277 Degree days | -7.6% |
| 2001 | 1,312 Degree days | +2.7% |
| 2002 | 1,152 Degree days | -12.2% |
| 2003 | 1,306 Degree days | +13.4% |
| 2004 | 1,425 Degree days | +9.1% |
| 2005 | 1,523 Degree days | +6.9% |
| 2006 | 1,225 Degree days | -19.5% |
| 2007 | 1,289 Degree days | +5.2% |
| 2008 | 1,354 Degree days | +5.0% |
| 2009 | 1,300 Degree days | -4.0% |
| 2010 | 1,559 Degree days | +19.9% |
| 2011 | 1,169 Degree days | -25.0% |
| 2012 | 1,351 Degree days | +15.6% |
| 2013 | 1,428 Degree days | +5.7% |
| 2014 | 1,083 Degree days | -24.2% |
| 2015 | 1,219 Degree days | +12.6% |
| 2016 | 1,268 Degree days | +4.0% |
| 2017 | 1,222 Degree days | -3.6% |
| 2018 | 1,260 Degree days | +3.2% |
| 2019 | 1,180 Degree days | -6.4% |
| 2020 | 1,128 Degree days | -4.3% |
| 2021 | 1,210 Degree days | +7.3% |
| 2022 | 1,101 Degree days | -9.0% |
| 2023 | 1,151 Degree days | +4.5% |
| 2024 | 1,115 Degree days | -3.1% |
| 2025 | 1,035 Degree days | -7.2% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1950s | 1,458 Degree days | 1,285 Degree days | 1,778 Degree days | 10 |
| 1960s | 1,494 Degree days | 1,205 Degree days | 1,726 Degree days | 10 |
| 1970s | 1,505 Degree days | 1,340 Degree days | 1,616 Degree days | 10 |
| 1980s | 1,390 Degree days | 1,172 Degree days | 1,579 Degree days | 10 |
| 1990s | 1,315 Degree days | 1,092 Degree days | 1,530 Degree days | 10 |
| 2000s | 1,316 Degree days | 1,152 Degree days | 1,523 Degree days | 10 |
| 2010s | 1,274 Degree days | 1,083 Degree days | 1,559 Degree days | 10 |
| 2020s | 1,123 Degree days | 1,035 Degree days | 1,210 Degree days | 6 |
More reference data data for Zaragoza
- Cooling and heating degree days by NUTS 2 regions - annual data 2.29 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs — Cooling degree 457.9 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs — Change in cooling 92.28 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs — Change in heating -304.87 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs — Change in heating -35.57 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs — Change in cooling 3.8 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs, annual growth rate -7.17 % change on previous year (2025)
- Cooling and heating degree days by NUTS 2 regions - monthly data -6.51 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs — Cooling degree 0.7427 % change on previous year (2025)
- Precipitation - Cities and FUAs — Extreme precipitation days 3.58 Days per year (2024)
Frequently asked questions
- What is cooling and heating degree days - cities and fuas in Zaragoza?
- Cooling and heating degree days - cities and fuas in Zaragoza was 1,035 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 Zaragoza?
- The highest recorded value was 1,778 Degree days in 1956.
- What is the lowest cooling and heating degree days - cities and fuas recorded in Zaragoza?
- The lowest recorded value was 1,035 Degree days in 2025.
- How does Zaragoza rank for cooling and heating degree days - cities and fuas?
- Zaragoza ranks 870th out of 1314 regions with data for 2025.
- Is cooling and heating degree days - cities and fuas rising or falling in Zaragoza?
- Over the last ten years it is down 15.1%. The long-run trend across the full record is falling.
- Where does this Zaragoza 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