Cooling and heating degree days - Cities and FUAs in Buzău
Buzău: Cooling and heating degree days - Cities and FUAs was 1,905 Degree days in 2025. ▼ Falling
Cooling and heating degree days - Cities and FUAs in Buzău, 1950–2025
Source: Organisation for Economic Co-operation and Development. Measured in Degree days.
Analysis
Buzău recorded 1,905 Degree days for cooling and heating degree days - cities and fuas in 2025.
The figure is down 1.3% on the previous year and down 7.7% over ten years.
Over the whole period, cooling and heating degree days - cities and fuas in Buzău peaked at 2,986 Degree days in 1954 and was at its lowest, 1,878 Degree days, in 2020.
Buzău ranks 445th 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 Buzău, year by year
| Year | Degree days | Change |
|---|---|---|
| 1950 | 2,269 Degree days | — |
| 1951 | 2,118 Degree days | -6.7% |
| 1952 | 2,288 Degree days | +8.0% |
| 1953 | 2,686 Degree days | +17.4% |
| 1954 | 2,986 Degree days | +11.2% |
| 1955 | 2,373 Degree days | -20.5% |
| 1956 | 2,954 Degree days | +24.5% |
| 1957 | 2,456 Degree days | -16.9% |
| 1958 | 2,318 Degree days | -5.6% |
| 1959 | 2,512 Degree days | +8.4% |
| 1960 | 2,144 Degree days | -14.7% |
| 1961 | 2,270 Degree days | +5.9% |
| 1962 | 2,498 Degree days | +10.0% |
| 1963 | 2,801 Degree days | +12.1% |
| 1964 | 2,467 Degree days | -11.9% |
| 1965 | 2,655 Degree days | +7.6% |
| 1966 | 2,198 Degree days | -17.2% |
| 1967 | 2,522 Degree days | +14.8% |
| 1968 | 2,387 Degree days | -5.3% |
| 1969 | 2,898 Degree days | +21.4% |
| 1970 | 2,389 Degree days | -17.6% |
| 1971 | 2,354 Degree days | -1.4% |
| 1972 | 2,465 Degree days | +4.7% |
| 1973 | 2,633 Degree days | +6.8% |
| 1974 | 2,498 Degree days | -5.1% |
| 1975 | 2,252 Degree days | -9.8% |
| 1976 | 2,652 Degree days | +17.7% |
| 1977 | 2,252 Degree days | -15.1% |
| 1978 | 2,527 Degree days | +12.2% |
| 1979 | 2,386 Degree days | -5.6% |
| 1980 | 2,688 Degree days | +12.6% |
| 1981 | 2,389 Degree days | -11.1% |
| 1982 | 2,385 Degree days | -0.2% |
| 1983 | 2,308 Degree days | -3.2% |
| 1984 | 2,468 Degree days | +6.9% |
| 1985 | 2,900 Degree days | +17.5% |
| 1986 | 2,465 Degree days | -15.0% |
| 1987 | 2,685 Degree days | +8.9% |
| 1988 | 2,519 Degree days | -6.2% |
| 1989 | 1,989 Degree days | -21.0% |
| 1990 | 2,004 Degree days | +0.7% |
| 1991 | 2,510 Degree days | +25.2% |
| 1992 | 2,338 Degree days | -6.8% |
| 1993 | 2,597 Degree days | +11.1% |
| 1994 | 2,101 Degree days | -19.1% |
| 1995 | 2,409 Degree days | +14.7% |
| 1996 | 2,658 Degree days | +10.3% |
| 1997 | 2,607 Degree days | -1.9% |
| 1998 | 2,431 Degree days | -6.8% |
| 1999 | 2,186 Degree days | -10.1% |
| 2000 | 2,151 Degree days | -1.6% |
| 2001 | 2,278 Degree days | +5.9% |
| 2002 | 2,172 Degree days | -4.7% |
| 2003 | 2,538 Degree days | +16.9% |
| 2004 | 2,238 Degree days | -11.8% |
| 2005 | 2,331 Degree days | +4.2% |
| 2006 | 2,249 Degree days | -3.5% |
| 2007 | 2,016 Degree days | -10.4% |
| 2008 | 2,033 Degree days | +0.9% |
| 2009 | 2,113 Degree days | +3.9% |
| 2010 | 2,353 Degree days | +11.3% |
| 2011 | 2,451 Degree days | +4.2% |
| 2012 | 2,448 Degree days | -0.1% |
| 2013 | 2,148 Degree days | -12.3% |
| 2014 | 2,190 Degree days | +1.9% |
| 2015 | 2,063 Degree days | -5.8% |
| 2016 | 2,191 Degree days | +6.2% |
| 2017 | 2,231 Degree days | +1.8% |
| 2018 | 2,217 Degree days | -0.6% |
| 2019 | 1,928 Degree days | -13.0% |
| 2020 | 1,878 Degree days | -2.6% |
| 2021 | 2,197 Degree days | +17.0% |
| 2022 | 1,984 Degree days | -9.7% |
| 2023 | 1,930 Degree days | -2.7% |
| 2024 | 1,930 Degree days | -0.0% |
| 2025 | 1,905 Degree days | -1.3% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1950s | 2,496 Degree days | 2,118 Degree days | 2,986 Degree days | 10 |
| 1960s | 2,484 Degree days | 2,144 Degree days | 2,898 Degree days | 10 |
| 1970s | 2,441 Degree days | 2,252 Degree days | 2,652 Degree days | 10 |
| 1980s | 2,480 Degree days | 1,989 Degree days | 2,900 Degree days | 10 |
| 1990s | 2,384 Degree days | 2,004 Degree days | 2,658 Degree days | 10 |
| 2000s | 2,212 Degree days | 2,016 Degree days | 2,538 Degree days | 10 |
| 2010s | 2,222 Degree days | 1,928 Degree days | 2,451 Degree days | 10 |
| 2020s | 1,971 Degree days | 1,878 Degree days | 2,197 Degree days | 6 |
More reference data data for Buzău
- Cooling and heating degree days by NUTS 2 regions - annual data 9.56 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs — Cooling degree 248.42 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs — Change in cooling 66.24 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs — Change in heating -442.42 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs — Change in heating -5.94 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs — Change in cooling -74.34 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs, annual growth rate -1.29 % change on previous year (2025)
- Cooling and heating degree days by NUTS 2 regions - monthly data 0.6779 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs — Cooling degree -43.59 % change on previous year (2025)
- Precipitation - Cities and FUAs — Extreme precipitation days 2.67 Days per year (2024)
Frequently asked questions
- What is cooling and heating degree days - cities and fuas in Buzău?
- Cooling and heating degree days - cities and fuas in Buzău was 1,905 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 Buzău?
- The highest recorded value was 2,986 Degree days in 1954.
- What is the lowest cooling and heating degree days - cities and fuas recorded in Buzău?
- The lowest recorded value was 1,878 Degree days in 2020.
- How does Buzău rank for cooling and heating degree days - cities and fuas?
- Buzău ranks 445th out of 1314 regions with data for 2025.
- Is cooling and heating degree days - cities and fuas rising or falling in Buzău?
- Over the last ten years it is down 7.7%. The long-run trend across the full record is falling.
- Where does this Buzău 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