Cooling and heating degree days - Cities and FUAs in Aix-en-Provence
Aix-en-Provence: Cooling and heating degree days - Cities and FUAs was 1,065 Degree days in 2025. ▼ Falling
Cooling and heating degree days - Cities and FUAs in Aix-en-Provence, 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 Aix-en-Provence is 1,065 Degree days, measured in 2025. That is the lowest value across all 76 years on record.
That represents a change of down 14.5% on the previous year and down 18.6% over ten years.
Over the whole period, cooling and heating degree days - cities and fuas in Aix-en-Provence peaked at 2,007 Degree days in 1956 and was at its lowest, 1,065 Degree days, in 2025.
Aix-en-Provence ranks 859th 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 Aix-en-Provence, year by year
| Year | Degree days | Change |
|---|---|---|
| 1950 | 1,647 Degree days | — |
| 1951 | 1,580 Degree days | -4.1% |
| 1952 | 1,704 Degree days | +7.9% |
| 1953 | 1,723 Degree days | +1.1% |
| 1954 | 1,713 Degree days | -0.5% |
| 1955 | 1,446 Degree days | -15.6% |
| 1956 | 2,007 Degree days | +38.8% |
| 1957 | 1,524 Degree days | -24.0% |
| 1958 | 1,586 Degree days | +4.0% |
| 1959 | 1,467 Degree days | -7.5% |
| 1960 | 1,633 Degree days | +11.3% |
| 1961 | 1,370 Degree days | -16.1% |
| 1962 | 1,814 Degree days | +32.4% |
| 1963 | 1,810 Degree days | -0.2% |
| 1964 | 1,652 Degree days | -8.7% |
| 1965 | 1,636 Degree days | -1.0% |
| 1966 | 1,551 Degree days | -5.2% |
| 1967 | 1,542 Degree days | -0.5% |
| 1968 | 1,537 Degree days | -0.3% |
| 1969 | 1,809 Degree days | +17.7% |
| 1970 | 1,621 Degree days | -10.4% |
| 1971 | 1,698 Degree days | +4.7% |
| 1972 | 1,487 Degree days | -12.4% |
| 1973 | 1,802 Degree days | +21.2% |
| 1974 | 1,606 Degree days | -10.9% |
| 1975 | 1,615 Degree days | +0.6% |
| 1976 | 1,685 Degree days | +4.3% |
| 1977 | 1,480 Degree days | -12.2% |
| 1978 | 1,637 Degree days | +10.6% |
| 1979 | 1,618 Degree days | -1.2% |
| 1980 | 1,746 Degree days | +7.9% |
| 1981 | 1,619 Degree days | -7.3% |
| 1982 | 1,458 Degree days | -9.9% |
| 1983 | 1,578 Degree days | +8.2% |
| 1984 | 1,704 Degree days | +8.0% |
| 1985 | 1,730 Degree days | +1.5% |
| 1986 | 1,611 Degree days | -6.9% |
| 1987 | 1,635 Degree days | +1.5% |
| 1988 | 1,465 Degree days | -10.4% |
| 1989 | 1,363 Degree days | -7.0% |
| 1990 | 1,412 Degree days | +3.6% |
| 1991 | 1,643 Degree days | +16.4% |
| 1992 | 1,446 Degree days | -12.0% |
| 1993 | 1,584 Degree days | +9.5% |
| 1994 | 1,312 Degree days | -17.2% |
| 1995 | 1,446 Degree days | +10.2% |
| 1996 | 1,483 Degree days | +2.5% |
| 1997 | 1,297 Degree days | -12.5% |
| 1998 | 1,569 Degree days | +20.9% |
| 1999 | 1,542 Degree days | -1.7% |
| 2000 | 1,338 Degree days | -13.2% |
| 2001 | 1,410 Degree days | +5.4% |
| 2002 | 1,227 Degree days | -13.0% |
| 2003 | 1,484 Degree days | +21.0% |
| 2004 | 1,542 Degree days | +3.9% |
| 2005 | 1,660 Degree days | +7.7% |
| 2006 | 1,347 Degree days | -18.9% |
| 2007 | 1,351 Degree days | +0.3% |
| 2008 | 1,436 Degree days | +6.3% |
| 2009 | 1,461 Degree days | +1.8% |
| 2010 | 1,719 Degree days | +17.6% |
| 2011 | 1,291 Degree days | -24.9% |
| 2012 | 1,455 Degree days | +12.7% |
| 2013 | 1,570 Degree days | +7.9% |
| 2014 | 1,119 Degree days | -28.7% |
| 2015 | 1,309 Degree days | +17.0% |
| 2016 | 1,256 Degree days | -4.0% |
| 2017 | 1,359 Degree days | +8.2% |
| 2018 | 1,205 Degree days | -11.3% |
| 2019 | 1,288 Degree days | +6.9% |
| 2020 | 1,144 Degree days | -11.2% |
| 2021 | 1,352 Degree days | +18.1% |
| 2022 | 1,182 Degree days | -12.5% |
| 2023 | 1,329 Degree days | +12.4% |
| 2024 | 1,246 Degree days | -6.3% |
| 2025 | 1,065 Degree days | -14.5% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1950s | 1,640 Degree days | 1,446 Degree days | 2,007 Degree days | 10 |
| 1960s | 1,635 Degree days | 1,370 Degree days | 1,814 Degree days | 10 |
| 1970s | 1,625 Degree days | 1,480 Degree days | 1,802 Degree days | 10 |
| 1980s | 1,591 Degree days | 1,363 Degree days | 1,746 Degree days | 10 |
| 1990s | 1,473 Degree days | 1,297 Degree days | 1,643 Degree days | 10 |
| 2000s | 1,426 Degree days | 1,227 Degree days | 1,660 Degree days | 10 |
| 2010s | 1,357 Degree days | 1,119 Degree days | 1,719 Degree days | 10 |
| 2020s | 1,220 Degree days | 1,065 Degree days | 1,352 Degree days | 6 |
More reference data data for Aix-en-Provence
- Cooling and heating degree days - Cities and FUAs — Cooling degree 296.42 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs — Change in cooling 61.51 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs — Change in heating -430.58 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs — Change in heating -72.21 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs, annual growth rate -14.49 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs — Change in cooling -36.92 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs — Cooling degree -10.83 % change on previous year (2025)
- Precipitation - Cities and FUAs — Extreme precipitation days 9.86 Days per year (2024)
- Precipitation - Cities and FUAs — Change in extreme precipitation 2.77 Days per year (2024)
- Dependency ratio - Cities and FUAs 29.4 Percentage of population aged 15-64 years (2022)
Frequently asked questions
- What is cooling and heating degree days - cities and fuas in Aix-en-Provence?
- Cooling and heating degree days - cities and fuas in Aix-en-Provence was 1,065 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 Aix-en-Provence?
- The highest recorded value was 2,007 Degree days in 1956.
- What is the lowest cooling and heating degree days - cities and fuas recorded in Aix-en-Provence?
- The lowest recorded value was 1,065 Degree days in 2025.
- How does Aix-en-Provence rank for cooling and heating degree days - cities and fuas?
- Aix-en-Provence ranks 859th out of 1314 regions with data for 2025.
- Is cooling and heating degree days - cities and fuas rising or falling in Aix-en-Provence?
- Over the last ten years it is down 18.6%. The long-run trend across the full record is falling.
- Where does this Aix-en-Provence 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