Cooling and heating degree days - Cities and FUAs in Zagreb
Zagreb: Cooling and heating degree days - Cities and FUAs was 1,792 Degree days in 2025. ▼ Falling
Cooling and heating degree days - Cities and FUAs in Zagreb, 1950–2025
Source: Organisation for Economic Co-operation and Development. Measured in Degree days.
Analysis
The most recent figure for cooling and heating degree days - cities and fuas in Zagreb is 1,792 Degree days, measured in 2025.
The figure is down 2.3% on the previous year and down 8.2% over ten years.
Over the whole period, cooling and heating degree days - cities and fuas in Zagreb peaked at 2,767 Degree days in 1956 and was at its lowest, 1,641 Degree days, in 2014.
Zagreb ranks 502nd of 1314 regions on this measure, 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 in Zagreb, year by year
| Year | Degree days | Change |
|---|---|---|
| 1950 | 2,249 Degree days | — |
| 1951 | 1,969 Degree days | -12.4% |
| 1952 | 2,530 Degree days | +28.5% |
| 1953 | 2,447 Degree days | -3.3% |
| 1954 | 2,666 Degree days | +9.0% |
| 1955 | 2,429 Degree days | -8.9% |
| 1956 | 2,767 Degree days | +13.9% |
| 1957 | 2,283 Degree days | -17.5% |
| 1958 | 2,281 Degree days | -0.1% |
| 1959 | 2,135 Degree days | -6.4% |
| 1960 | 2,140 Degree days | +0.2% |
| 1961 | 2,061 Degree days | -3.7% |
| 1962 | 2,675 Degree days | +29.8% |
| 1963 | 2,731 Degree days | +2.1% |
| 1964 | 2,623 Degree days | -4.0% |
| 1965 | 2,498 Degree days | -4.8% |
| 1966 | 2,163 Degree days | -13.4% |
| 1967 | 2,308 Degree days | +6.7% |
| 1968 | 2,293 Degree days | -0.7% |
| 1969 | 2,674 Degree days | +16.6% |
| 1970 | 2,490 Degree days | -6.9% |
| 1971 | 2,395 Degree days | -3.8% |
| 1972 | 2,296 Degree days | -4.1% |
| 1973 | 2,513 Degree days | +9.4% |
| 1974 | 2,160 Degree days | -14.0% |
| 1975 | 2,105 Degree days | -2.6% |
| 1976 | 2,457 Degree days | +16.7% |
| 1977 | 2,212 Degree days | -10.0% |
| 1978 | 2,508 Degree days | +13.4% |
| 1979 | 2,266 Degree days | -9.7% |
| 1980 | 2,594 Degree days | +14.5% |
| 1981 | 2,336 Degree days | -10.0% |
| 1982 | 2,229 Degree days | -4.6% |
| 1983 | 2,247 Degree days | +0.8% |
| 1984 | 2,352 Degree days | +4.7% |
| 1985 | 2,588 Degree days | +10.0% |
| 1986 | 2,446 Degree days | -5.5% |
| 1987 | 2,466 Degree days | +0.8% |
| 1988 | 2,194 Degree days | -11.1% |
| 1989 | 2,006 Degree days | -8.6% |
| 1990 | 1,963 Degree days | -2.1% |
| 1991 | 2,357 Degree days | +20.1% |
| 1992 | 2,027 Degree days | -14.0% |
| 1993 | 2,328 Degree days | +14.9% |
| 1994 | 1,963 Degree days | -15.7% |
| 1995 | 2,171 Degree days | +10.6% |
| 1996 | 2,534 Degree days | +16.7% |
| 1997 | 2,292 Degree days | -9.6% |
| 1998 | 2,237 Degree days | -2.4% |
| 1999 | 2,191 Degree days | -2.1% |
| 2000 | 1,829 Degree days | -16.5% |
| 2001 | 2,038 Degree days | +11.4% |
| 2002 | 1,922 Degree days | -5.7% |
| 2003 | 2,335 Degree days | +21.4% |
| 2004 | 2,235 Degree days | -4.3% |
| 2005 | 2,439 Degree days | +9.1% |
| 2006 | 2,135 Degree days | -12.4% |
| 2007 | 1,919 Degree days | -10.1% |
| 2008 | 1,960 Degree days | +2.1% |
| 2009 | 2,016 Degree days | +2.8% |
| 2010 | 2,289 Degree days | +13.6% |
| 2011 | 2,107 Degree days | -8.0% |
| 2012 | 2,121 Degree days | +0.7% |
| 2013 | 2,163 Degree days | +2.0% |
| 2014 | 1,641 Degree days | -24.1% |
| 2015 | 1,953 Degree days | +19.0% |
| 2016 | 2,010 Degree days | +3.0% |
| 2017 | 2,033 Degree days | +1.1% |
| 2018 | 1,919 Degree days | -5.6% |
| 2019 | 1,842 Degree days | -4.0% |
| 2020 | 1,859 Degree days | +0.9% |
| 2021 | 2,081 Degree days | +12.0% |
| 2022 | 1,884 Degree days | -9.4% |
| 2023 | 1,860 Degree days | -1.3% |
| 2024 | 1,833 Degree days | -1.5% |
| 2025 | 1,792 Degree days | -2.3% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1950s | 2,376 Degree days | 1,969 Degree days | 2,767 Degree days | 10 |
| 1960s | 2,417 Degree days | 2,061 Degree days | 2,731 Degree days | 10 |
| 1970s | 2,340 Degree days | 2,105 Degree days | 2,513 Degree days | 10 |
| 1980s | 2,346 Degree days | 2,006 Degree days | 2,594 Degree days | 10 |
| 1990s | 2,206 Degree days | 1,963 Degree days | 2,534 Degree days | 10 |
| 2000s | 2,083 Degree days | 1,829 Degree days | 2,439 Degree days | 10 |
| 2010s | 2,008 Degree days | 1,641 Degree days | 2,289 Degree days | 10 |
| 2020s | 1,885 Degree days | 1,792 Degree days | 2,081 Degree days | 6 |
More reference data data for Zagreb
- Cooling and heating degree days - Cities and FUAs — Cooling degree -54.2 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs — Change in cooling -100.68 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs, annual growth rate -2.25 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs — Change in heating -11.22 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs — Change in heating -409.38 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs — Change in cooling -1.19 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs — Cooling degree 148.05 Degree days (2025)
- Precipitation - Cities and FUAs — Extreme precipitation days 8.69 Days per year (2024)
- Precipitation - Cities and FUAs — Change in extreme precipitation 1.62 Days per year (2024)
- Wind threats - Cities and FUAs — Exposure to wind threats 0 Percentage of area (2023)
Frequently asked questions
- What is cooling and heating degree days - cities and fuas in Zagreb?
- Cooling and heating degree days - cities and fuas in Zagreb was 1,792 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 Zagreb?
- The highest recorded value was 2,767 Degree days in 1956.
- What is the lowest cooling and heating degree days - cities and fuas recorded in Zagreb?
- The lowest recorded value was 1,641 Degree days in 2014.
- How does Zagreb rank for cooling and heating degree days - cities and fuas?
- Zagreb ranks 502nd out of 1314 regions with data for 2025.
- Is cooling and heating degree days - cities and fuas rising or falling in Zagreb?
- Over the last ten years it is down 8.2%. The long-run trend across the full record is falling.
- Where does this Zagreb 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