Cooling and heating degree days - Cities and FUAs in Chomutov-Jirkov
Chomutov-Jirkov: Cooling and heating degree days - Cities and FUAs was 2,555 Degree days in 2025. ▼ Falling
Cooling and heating degree days - Cities and FUAs in Chomutov-Jirkov, 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 Chomutov-Jirkov is 2,555 Degree days, measured in 2025.
That represents a change of up 3.1% on the previous year and down 0.7% over ten years.
Over the whole period, cooling and heating degree days - cities and fuas in Chomutov-Jirkov peaked at 3,730 Degree days in 1956 and was at its lowest, 2,439 Degree days, in 2014.
That places Chomutov-Jirkov 158th out of 1314 regions with data for 2025, putting it in the top quarter.
The long-run direction has been consistently falling across the 76 years of available data.
Cooling and heating degree days - Cities and FUAs in Chomutov-Jirkov, year by year
| Year | Degree days | Change |
|---|---|---|
| 1950 | 3,132 Degree days | — |
| 1951 | 3,087 Degree days | -1.4% |
| 1952 | 3,369 Degree days | +9.1% |
| 1953 | 3,001 Degree days | -10.9% |
| 1954 | 3,480 Degree days | +16.0% |
| 1955 | 3,498 Degree days | +0.5% |
| 1956 | 3,730 Degree days | +6.7% |
| 1957 | 3,051 Degree days | -18.2% |
| 1958 | 3,227 Degree days | +5.8% |
| 1959 | 2,983 Degree days | -7.6% |
| 1960 | 3,189 Degree days | +6.9% |
| 1961 | 2,918 Degree days | -8.5% |
| 1962 | 3,569 Degree days | +22.3% |
| 1963 | 3,585 Degree days | +0.4% |
| 1964 | 3,376 Degree days | -5.8% |
| 1965 | 3,438 Degree days | +1.8% |
| 1966 | 3,009 Degree days | -12.5% |
| 1967 | 2,935 Degree days | -2.4% |
| 1968 | 3,239 Degree days | +10.3% |
| 1969 | 3,640 Degree days | +12.4% |
| 1970 | 3,426 Degree days | -5.9% |
| 1971 | 3,172 Degree days | -7.4% |
| 1972 | 3,342 Degree days | +5.4% |
| 1973 | 3,267 Degree days | -2.2% |
| 1974 | 2,958 Degree days | -9.5% |
| 1975 | 3,004 Degree days | +1.6% |
| 1976 | 3,244 Degree days | +8.0% |
| 1977 | 3,005 Degree days | -7.4% |
| 1978 | 3,298 Degree days | +9.7% |
| 1979 | 3,353 Degree days | +1.7% |
| 1980 | 3,433 Degree days | +2.4% |
| 1981 | 3,215 Degree days | -6.4% |
| 1982 | 2,986 Degree days | -7.1% |
| 1983 | 2,941 Degree days | -1.5% |
| 1984 | 3,233 Degree days | +9.9% |
| 1985 | 3,413 Degree days | +5.5% |
| 1986 | 3,237 Degree days | -5.2% |
| 1987 | 3,476 Degree days | +7.4% |
| 1988 | 2,928 Degree days | -15.8% |
| 1989 | 2,676 Degree days | -8.6% |
| 1990 | 2,705 Degree days | +1.1% |
| 1991 | 3,129 Degree days | +15.7% |
| 1992 | 2,874 Degree days | -8.2% |
| 1993 | 3,110 Degree days | +8.2% |
| 1994 | 2,774 Degree days | -10.8% |
| 1995 | 3,057 Degree days | +10.2% |
| 1996 | 3,626 Degree days | +18.6% |
| 1997 | 3,134 Degree days | -13.6% |
| 1998 | 2,903 Degree days | -7.4% |
| 1999 | 2,806 Degree days | -3.4% |
| 2000 | 2,659 Degree days | -5.2% |
| 2001 | 3,023 Degree days | +13.7% |
| 2002 | 2,819 Degree days | -6.7% |
| 2003 | 2,994 Degree days | +6.2% |
| 2004 | 2,979 Degree days | -0.5% |
| 2005 | 3,019 Degree days | +1.3% |
| 2006 | 2,904 Degree days | -3.8% |
| 2007 | 2,607 Degree days | -10.2% |
| 2008 | 2,750 Degree days | +5.5% |
| 2009 | 2,851 Degree days | +3.7% |
| 2010 | 3,418 Degree days | +19.9% |
| 2011 | 2,733 Degree days | -20.0% |
| 2012 | 2,946 Degree days | +7.8% |
| 2013 | 3,097 Degree days | +5.1% |
| 2014 | 2,439 Degree days | -21.2% |
| 2015 | 2,573 Degree days | +5.5% |
| 2016 | 2,757 Degree days | +7.2% |
| 2017 | 2,784 Degree days | +1.0% |
| 2018 | 2,581 Degree days | -7.3% |
| 2019 | 2,510 Degree days | -2.8% |
| 2020 | 2,503 Degree days | -0.3% |
| 2021 | 2,960 Degree days | +18.3% |
| 2022 | 2,555 Degree days | -13.7% |
| 2023 | 2,567 Degree days | +0.5% |
| 2024 | 2,477 Degree days | -3.5% |
| 2025 | 2,555 Degree days | +3.1% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1950s | 3,256 Degree days | 2,983 Degree days | 3,730 Degree days | 10 |
| 1960s | 3,290 Degree days | 2,918 Degree days | 3,640 Degree days | 10 |
| 1970s | 3,207 Degree days | 2,958 Degree days | 3,426 Degree days | 10 |
| 1980s | 3,154 Degree days | 2,676 Degree days | 3,476 Degree days | 10 |
| 1990s | 3,012 Degree days | 2,705 Degree days | 3,626 Degree days | 10 |
| 2000s | 2,860 Degree days | 2,607 Degree days | 3,023 Degree days | 10 |
| 2010s | 2,784 Degree days | 2,439 Degree days | 3,418 Degree days | 10 |
| 2020s | 2,603 Degree days | 2,477 Degree days | 2,960 Degree days | 6 |
More reference data data for Chomutov-Jirkov
- Cooling and heating degree days - Cities and FUAs — Cooling degree 23.84 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs — Change in cooling -11.96 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs — Change in heating -453.39 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs — Change in heating 14.65 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs, annual growth rate 3.14 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs — Change in cooling -125.19 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs — Cooling degree -71.38 % change on previous year (2025)
- Precipitation - Cities and FUAs — Extreme precipitation days 2 Days per year (2024)
- Precipitation - Cities and FUAs — Change in extreme precipitation 0.3251 Days per year (2024)
- Dependency ratio - Cities and FUAs 30.7 Percentage of population aged 15-64 years (2025)
Frequently asked questions
- What is cooling and heating degree days - cities and fuas in Chomutov-Jirkov?
- Cooling and heating degree days - cities and fuas in Chomutov-Jirkov was 2,555 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 Chomutov-Jirkov?
- The highest recorded value was 3,730 Degree days in 1956.
- What is the lowest cooling and heating degree days - cities and fuas recorded in Chomutov-Jirkov?
- The lowest recorded value was 2,439 Degree days in 2014.
- How does Chomutov-Jirkov rank for cooling and heating degree days - cities and fuas?
- Chomutov-Jirkov ranks 158th out of 1314 regions with data for 2025.
- Is cooling and heating degree days - cities and fuas rising or falling in Chomutov-Jirkov?
- Over the last ten years it is down 0.7%. The long-run trend across the full record is falling.
- Where does this Chomutov-Jirkov 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