Cooling and heating degree days - Cities and FUAs (heating Cities) in Bacău
Bacău: Cooling and heating degree days - Cities and FUAs (heating Cities) was 3,306 Degree days in 2025. ▼ Falling
Cooling and heating degree days - Cities and FUAs in Bacău, 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 Bacău is 3,306 Degree days, measured in 2025.
Compared with earlier readings it is up 47.1% on the previous year and up 38.4% over ten years.
Over the whole period, cooling and heating degree days - cities and fuas in Bacău peaked at 3,383 Degree days in 1969 and was at its lowest, 2,180 Degree days, in 2020.
Bacău ranks 40th of 1314 regions on this measure, 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 Bacău, year by year
| Year | Degree days | Change |
|---|---|---|
| 1950 | 2,681 Degree days | — |
| 1951 | 2,521 Degree days | -6.0% |
| 1952 | 2,793 Degree days | +10.8% |
| 1953 | 3,109 Degree days | +11.3% |
| 1954 | 3,359 Degree days | +8.1% |
| 1955 | 2,850 Degree days | -15.2% |
| 1956 | 3,378 Degree days | +18.5% |
| 1957 | 2,778 Degree days | -17.7% |
| 1958 | 2,704 Degree days | -2.7% |
| 1959 | 2,845 Degree days | +5.2% |
| 1960 | 2,616 Degree days | -8.0% |
| 1961 | 2,726 Degree days | +4.2% |
| 1962 | 2,893 Degree days | +6.1% |
| 1963 | 3,240 Degree days | +12.0% |
| 1964 | 2,996 Degree days | -7.5% |
| 1965 | 3,028 Degree days | +1.1% |
| 1966 | 2,592 Degree days | -14.4% |
| 1967 | 2,798 Degree days | +8.0% |
| 1968 | 2,772 Degree days | -0.9% |
| 1969 | 3,383 Degree days | +22.0% |
| 1970 | 2,830 Degree days | -16.4% |
| 1971 | 2,794 Degree days | -1.3% |
| 1972 | 2,852 Degree days | +2.1% |
| 1973 | 2,906 Degree days | +1.9% |
| 1974 | 2,789 Degree days | -4.1% |
| 1975 | 2,628 Degree days | -5.8% |
| 1976 | 3,139 Degree days | +19.5% |
| 1977 | 2,694 Degree days | -14.2% |
| 1978 | 2,894 Degree days | +7.4% |
| 1979 | 2,793 Degree days | -3.5% |
| 1980 | 3,199 Degree days | +14.5% |
| 1981 | 2,877 Degree days | -10.1% |
| 1982 | 2,774 Degree days | -3.6% |
| 1983 | 2,579 Degree days | -7.0% |
| 1984 | 2,885 Degree days | +11.9% |
| 1985 | 3,291 Degree days | +14.1% |
| 1986 | 2,838 Degree days | -13.8% |
| 1987 | 3,114 Degree days | +9.7% |
| 1988 | 2,949 Degree days | -5.3% |
| 1989 | 2,315 Degree days | -21.5% |
| 1990 | 2,291 Degree days | -1.0% |
| 1991 | 2,766 Degree days | +20.7% |
| 1992 | 2,711 Degree days | -2.0% |
| 1993 | 3,017 Degree days | +11.3% |
| 1994 | 2,444 Degree days | -19.0% |
| 1995 | 2,903 Degree days | +18.8% |
| 1996 | 3,170 Degree days | +9.2% |
| 1997 | 2,981 Degree days | -6.0% |
| 1998 | 2,875 Degree days | -3.6% |
| 1999 | 2,545 Degree days | -11.5% |
| 2000 | 2,476 Degree days | -2.7% |
| 2001 | 2,729 Degree days | +10.2% |
| 2002 | 2,603 Degree days | -4.6% |
| 2003 | 2,942 Degree days | +13.0% |
| 2004 | 2,617 Degree days | -11.0% |
| 2005 | 2,700 Degree days | +3.2% |
| 2006 | 2,796 Degree days | +3.6% |
| 2007 | 2,398 Degree days | -14.2% |
| 2008 | 2,425 Degree days | +1.1% |
| 2009 | 2,491 Degree days | +2.7% |
| 2010 | 2,769 Degree days | +11.2% |
| 2011 | 2,815 Degree days | +1.6% |
| 2012 | 2,840 Degree days | +0.9% |
| 2013 | 2,509 Degree days | -11.7% |
| 2014 | 2,532 Degree days | +0.9% |
| 2015 | 2,388 Degree days | -5.7% |
| 2016 | 2,440 Degree days | +2.2% |
| 2017 | 2,568 Degree days | +5.3% |
| 2018 | 2,558 Degree days | -0.4% |
| 2019 | 2,290 Degree days | -10.5% |
| 2020 | 2,180 Degree days | -4.8% |
| 2021 | 2,582 Degree days | +18.4% |
| 2022 | 2,330 Degree days | -9.8% |
| 2023 | 2,256 Degree days | -3.2% |
| 2024 | 2,247 Degree days | -0.4% |
| 2025 | 3,306 Degree days | +47.1% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1950s | 2,902 Degree days | 2,521 Degree days | 3,378 Degree days | 10 |
| 1960s | 2,904 Degree days | 2,592 Degree days | 3,383 Degree days | 10 |
| 1970s | 2,832 Degree days | 2,628 Degree days | 3,139 Degree days | 10 |
| 1980s | 2,882 Degree days | 2,315 Degree days | 3,291 Degree days | 10 |
| 1990s | 2,770 Degree days | 2,291 Degree days | 3,170 Degree days | 10 |
| 2000s | 2,618 Degree days | 2,398 Degree days | 2,942 Degree days | 10 |
| 2010s | 2,571 Degree days | 2,290 Degree days | 2,840 Degree days | 10 |
| 2020s | 2,484 Degree days | 2,180 Degree days | 3,306 Degree days | 6 |
More reference data data for Bacău
- Cooling and heating degree days by NUTS 2 regions - annual data 8.21 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs — Cooling degree 159.85 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs — Change in cooling 65.53 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs — Change in heating 563.83 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs — Change in heating 213.9 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs — Change in cooling -57.34 % change on previous year (2025)
- Cooling and heating degree days by NUTS 2 regions - monthly data -5.28 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs, annual growth rate 47.12 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs — Cooling degree -35.52 % change on previous year (2025)
- Precipitation - Cities and FUAs — Extreme precipitation days 5 Days per year (2024)
Frequently asked questions
- What is cooling and heating degree days - cities and fuas in Bacău?
- Cooling and heating degree days - cities and fuas in Bacău was 3,306 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 Bacău?
- The highest recorded value was 3,383 Degree days in 1969.
- What is the lowest cooling and heating degree days - cities and fuas recorded in Bacău?
- The lowest recorded value was 2,180 Degree days in 2020.
- How does Bacău rank for cooling and heating degree days - cities and fuas?
- Bacău ranks 40th out of 1314 regions with data for 2025.
- Is cooling and heating degree days - cities and fuas rising or falling in Bacău?
- Over the last ten years it is up 38.4%. The long-run trend across the full record is falling.
- Where does this Bacău 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