Cooling and heating degree days - Cities and FUAs in Bremen
Bremen: Cooling and heating degree days - Cities and FUAs was 2,026 Degree days in 2025. ▼ Falling
Cooling and heating degree days - Cities and FUAs in Bremen, 1950–2025
Source: Organisation for Economic Co-operation and Development. Measured in Degree days.
Analysis
In 2025, cooling and heating degree days - cities and fuas in Bremen stood at 2,026 Degree days.
The figure is up 7.7% on the previous year and up 1.0% over ten years.
Over the whole period, cooling and heating degree days - cities and fuas in Bremen peaked at 2,909 Degree days in 1996 and was at its lowest, 1,798 Degree days, in 2014.
Bremen ranks 373rd 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 Bremen, year by year
| Year | Degree days | Change |
|---|---|---|
| 1950 | 2,471 Degree days | — |
| 1951 | 2,372 Degree days | -4.0% |
| 1952 | 2,686 Degree days | +13.2% |
| 1953 | 2,224 Degree days | -17.2% |
| 1954 | 2,571 Degree days | +15.6% |
| 1955 | 2,774 Degree days | +7.9% |
| 1956 | 2,868 Degree days | +3.4% |
| 1957 | 2,293 Degree days | -20.0% |
| 1958 | 2,515 Degree days | +9.7% |
| 1959 | 2,239 Degree days | -11.0% |
| 1960 | 2,361 Degree days | +5.5% |
| 1961 | 2,234 Degree days | -5.4% |
| 1962 | 2,743 Degree days | +22.8% |
| 1963 | 2,898 Degree days | +5.6% |
| 1964 | 2,572 Degree days | -11.2% |
| 1965 | 2,612 Degree days | +1.6% |
| 1966 | 2,481 Degree days | -5.0% |
| 1967 | 2,188 Degree days | -11.8% |
| 1968 | 2,510 Degree days | +14.7% |
| 1969 | 2,846 Degree days | +13.4% |
| 1970 | 2,718 Degree days | -4.5% |
| 1971 | 2,339 Degree days | -13.9% |
| 1972 | 2,519 Degree days | +7.7% |
| 1973 | 2,474 Degree days | -1.8% |
| 1974 | 2,169 Degree days | -12.3% |
| 1975 | 2,295 Degree days | +5.8% |
| 1976 | 2,517 Degree days | +9.7% |
| 1977 | 2,270 Degree days | -9.8% |
| 1978 | 2,506 Degree days | +10.4% |
| 1979 | 2,788 Degree days | +11.2% |
| 1980 | 2,613 Degree days | -6.3% |
| 1981 | 2,543 Degree days | -2.7% |
| 1982 | 2,354 Degree days | -7.4% |
| 1983 | 2,264 Degree days | -3.8% |
| 1984 | 2,454 Degree days | +8.4% |
| 1985 | 2,744 Degree days | +11.8% |
| 1986 | 2,605 Degree days | -5.1% |
| 1987 | 2,791 Degree days | +7.1% |
| 1988 | 2,147 Degree days | -23.1% |
| 1989 | 2,085 Degree days | -2.9% |
| 1990 | 1,934 Degree days | -7.2% |
| 1991 | 2,384 Degree days | +23.3% |
| 1992 | 2,204 Degree days | -7.6% |
| 1993 | 2,449 Degree days | +11.1% |
| 1994 | 2,178 Degree days | -11.1% |
| 1995 | 2,389 Degree days | +9.7% |
| 1996 | 2,909 Degree days | +21.8% |
| 1997 | 2,429 Degree days | -16.5% |
| 1998 | 2,208 Degree days | -9.1% |
| 1999 | 2,106 Degree days | -4.6% |
| 2000 | 1,981 Degree days | -5.9% |
| 2001 | 2,321 Degree days | +17.2% |
| 2002 | 2,197 Degree days | -5.4% |
| 2003 | 2,376 Degree days | +8.2% |
| 2004 | 2,199 Degree days | -7.5% |
| 2005 | 2,176 Degree days | -1.1% |
| 2006 | 2,136 Degree days | -1.8% |
| 2007 | 1,907 Degree days | -10.8% |
| 2008 | 2,118 Degree days | +11.1% |
| 2009 | 2,177 Degree days | +2.8% |
| 2010 | 2,813 Degree days | +29.2% |
| 2011 | 2,082 Degree days | -26.0% |
| 2012 | 2,265 Degree days | +8.8% |
| 2013 | 2,411 Degree days | +6.4% |
| 2014 | 1,798 Degree days | -25.4% |
| 2015 | 2,006 Degree days | +11.5% |
| 2016 | 2,213 Degree days | +10.3% |
| 2017 | 2,086 Degree days | -5.7% |
| 2018 | 2,052 Degree days | -1.6% |
| 2019 | 1,962 Degree days | -4.4% |
| 2020 | 1,835 Degree days | -6.4% |
| 2021 | 2,214 Degree days | +20.6% |
| 2022 | 1,944 Degree days | -12.2% |
| 2023 | 2,020 Degree days | +3.9% |
| 2024 | 1,881 Degree days | -6.9% |
| 2025 | 2,026 Degree days | +7.7% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1950s | 2,501 Degree days | 2,224 Degree days | 2,868 Degree days | 10 |
| 1960s | 2,545 Degree days | 2,188 Degree days | 2,898 Degree days | 10 |
| 1970s | 2,459 Degree days | 2,169 Degree days | 2,788 Degree days | 10 |
| 1980s | 2,460 Degree days | 2,085 Degree days | 2,791 Degree days | 10 |
| 1990s | 2,319 Degree days | 1,934 Degree days | 2,909 Degree days | 10 |
| 2000s | 2,159 Degree days | 1,907 Degree days | 2,376 Degree days | 10 |
| 2010s | 2,169 Degree days | 1,798 Degree days | 2,813 Degree days | 10 |
| 2020s | 1,987 Degree days | 1,835 Degree days | 2,214 Degree days | 6 |
More reference data data for Bremen
- Cooling and heating degree days by NUTS 2 regions - annual data 11.91 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs — Cooling degree 15.76 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs — Change in cooling -21.66 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs — Change in heating -293.32 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs — Change in heating 33.01 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs — Change in cooling -222.21 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs, annual growth rate 7.68 % change on previous year (2025)
- Cooling and heating degree days by NUTS 2 regions - monthly data 3.5 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs — Cooling degree -71.43 % change on previous year (2025)
- Precipitation - Cities and FUAs — Change in extreme precipitation 0.7043 Days per year (2024)
Frequently asked questions
- What is cooling and heating degree days - cities and fuas in Bremen?
- Cooling and heating degree days - cities and fuas in Bremen was 2,026 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 Bremen?
- The highest recorded value was 2,909 Degree days in 1996.
- What is the lowest cooling and heating degree days - cities and fuas recorded in Bremen?
- The lowest recorded value was 1,798 Degree days in 2014.
- How does Bremen rank for cooling and heating degree days - cities and fuas?
- Bremen ranks 373rd out of 1314 regions with data for 2025.
- Is cooling and heating degree days - cities and fuas rising or falling in Bremen?
- Over the last ten years it is up 1.0%. The long-run trend across the full record is falling.
- Where does this Bremen 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