Cooling and heating degree days - Cities and FUAs in Biel/Bienne
Biel/Bienne: Cooling and heating degree days - Cities and FUAs was 2,252 Degree days in 2025. ▼ Falling
Cooling and heating degree days - Cities and FUAs in Biel/Bienne, 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 Biel/Bienne stood at 2,252 Degree days.
That represents a change of down 4.9% on the previous year and down 6.4% over ten years.
Over the whole period, cooling and heating degree days - cities and fuas in Biel/Bienne peaked at 3,255 Degree days in 1956 and was at its lowest, 2,168 Degree days, in 2022.
Biel/Bienne ranks 279th of 1314 regions on this measure, 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 Biel/Bienne, year by year
| Year | Degree days | Change |
|---|---|---|
| 1950 | 2,811 Degree days | — |
| 1951 | 2,769 Degree days | -1.5% |
| 1952 | 2,989 Degree days | +7.9% |
| 1953 | 2,829 Degree days | -5.3% |
| 1954 | 3,061 Degree days | +8.2% |
| 1955 | 2,946 Degree days | -3.8% |
| 1956 | 3,255 Degree days | +10.5% |
| 1957 | 2,790 Degree days | -14.3% |
| 1958 | 2,922 Degree days | +4.7% |
| 1959 | 2,602 Degree days | -11.0% |
| 1960 | 2,804 Degree days | +7.8% |
| 1961 | 2,530 Degree days | -9.8% |
| 1962 | 3,223 Degree days | +27.4% |
| 1963 | 3,251 Degree days | +0.9% |
| 1964 | 2,879 Degree days | -11.4% |
| 1965 | 3,057 Degree days | +6.2% |
| 1966 | 2,779 Degree days | -9.1% |
| 1967 | 2,823 Degree days | +1.6% |
| 1968 | 2,912 Degree days | +3.2% |
| 1969 | 3,213 Degree days | +10.3% |
| 1970 | 3,079 Degree days | -4.2% |
| 1971 | 2,962 Degree days | -3.8% |
| 1972 | 2,943 Degree days | -0.7% |
| 1973 | 3,113 Degree days | +5.8% |
| 1974 | 2,814 Degree days | -9.6% |
| 1975 | 2,850 Degree days | +1.3% |
| 1976 | 2,891 Degree days | +1.4% |
| 1977 | 2,760 Degree days | -4.5% |
| 1978 | 3,022 Degree days | +9.5% |
| 1979 | 2,882 Degree days | -4.6% |
| 1980 | 3,025 Degree days | +4.9% |
| 1981 | 2,853 Degree days | -5.7% |
| 1982 | 2,597 Degree days | -9.0% |
| 1983 | 2,724 Degree days | +4.9% |
| 1984 | 2,897 Degree days | +6.4% |
| 1985 | 3,045 Degree days | +5.1% |
| 1986 | 2,901 Degree days | -4.7% |
| 1987 | 2,884 Degree days | -0.6% |
| 1988 | 2,558 Degree days | -11.3% |
| 1989 | 2,499 Degree days | -2.3% |
| 1990 | 2,454 Degree days | -1.8% |
| 1991 | 2,731 Degree days | +11.3% |
| 1992 | 2,576 Degree days | -5.7% |
| 1993 | 2,624 Degree days | +1.9% |
| 1994 | 2,308 Degree days | -12.0% |
| 1995 | 2,656 Degree days | +15.1% |
| 1996 | 2,871 Degree days | +8.1% |
| 1997 | 2,517 Degree days | -12.3% |
| 1998 | 2,653 Degree days | +5.4% |
| 1999 | 2,625 Degree days | -1.0% |
| 2000 | 2,430 Degree days | -7.4% |
| 2001 | 2,618 Degree days | +7.7% |
| 2002 | 2,404 Degree days | -8.2% |
| 2003 | 2,590 Degree days | +7.8% |
| 2004 | 2,687 Degree days | +3.8% |
| 2005 | 2,749 Degree days | +2.3% |
| 2006 | 2,542 Degree days | -7.6% |
| 2007 | 2,444 Degree days | -3.8% |
| 2008 | 2,652 Degree days | +8.5% |
| 2009 | 2,667 Degree days | +0.6% |
| 2010 | 2,962 Degree days | +11.0% |
| 2011 | 2,304 Degree days | -22.2% |
| 2012 | 2,625 Degree days | +13.9% |
| 2013 | 2,803 Degree days | +6.8% |
| 2014 | 2,229 Degree days | -20.5% |
| 2015 | 2,405 Degree days | +7.9% |
| 2016 | 2,583 Degree days | +7.4% |
| 2017 | 2,560 Degree days | -0.9% |
| 2018 | 2,285 Degree days | -10.7% |
| 2019 | 2,410 Degree days | +5.5% |
| 2020 | 2,262 Degree days | -6.1% |
| 2021 | 2,636 Degree days | +16.5% |
| 2022 | 2,168 Degree days | -17.8% |
| 2023 | 2,347 Degree days | +8.2% |
| 2024 | 2,367 Degree days | +0.9% |
| 2025 | 2,252 Degree days | -4.9% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1950s | 2,897 Degree days | 2,602 Degree days | 3,255 Degree days | 10 |
| 1960s | 2,947 Degree days | 2,530 Degree days | 3,251 Degree days | 10 |
| 1970s | 2,932 Degree days | 2,760 Degree days | 3,113 Degree days | 10 |
| 1980s | 2,798 Degree days | 2,499 Degree days | 3,045 Degree days | 10 |
| 1990s | 2,601 Degree days | 2,308 Degree days | 2,871 Degree days | 10 |
| 2000s | 2,578 Degree days | 2,404 Degree days | 2,749 Degree days | 10 |
| 2010s | 2,517 Degree days | 2,229 Degree days | 2,962 Degree days | 10 |
| 2020s | 2,339 Degree days | 2,168 Degree days | 2,636 Degree days | 6 |
More reference data data for Biel/Bienne
- Cooling and heating degree days - Cities and FUAs — Cooling degree 33.83 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs — Change in cooling -3.26 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs — Change in heating -405.48 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs — Change in heating -39.7 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs, annual growth rate -4.87 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs — Change in cooling -116.12 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs — Cooling degree -40.99 % change on previous year (2025)
- Precipitation - Cities and FUAs — Extreme precipitation days 7.5 Days per year (2024)
- Precipitation - Cities and FUAs — Change in extreme precipitation -0.7749 Days per year (2024)
- Dependency ratio - Cities and FUAs 30.4 Percentage of population aged 15-64 years (2023)
Frequently asked questions
- What is cooling and heating degree days - cities and fuas in Biel/Bienne?
- Cooling and heating degree days - cities and fuas in Biel/Bienne was 2,252 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 Biel/Bienne?
- The highest recorded value was 3,255 Degree days in 1956.
- What is the lowest cooling and heating degree days - cities and fuas recorded in Biel/Bienne?
- The lowest recorded value was 2,168 Degree days in 2022.
- How does Biel/Bienne rank for cooling and heating degree days - cities and fuas?
- Biel/Bienne ranks 279th out of 1314 regions with data for 2025.
- Is cooling and heating degree days - cities and fuas rising or falling in Biel/Bienne?
- Over the last ten years it is down 6.4%. The long-run trend across the full record is falling.
- Where does this Biel/Bienne 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