Cooling and heating degree days - Cities and FUAs (heating Cities) in La Rochelle
La Rochelle: Cooling and heating degree days - Cities and FUAs (heating Cities) was 1,010 Degree days in 2025. ▼ Falling
Cooling and heating degree days - Cities and FUAs in La Rochelle, 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 La Rochelle stood at 1,010 Degree days.
The figure is down 9.9% on the previous year and down 11.2% over ten years.
Over the whole period, cooling and heating degree days - cities and fuas in La Rochelle peaked at 1,766 Degree days in 1956 and was at its lowest, 941.45 Degree days, in 2020.
That places La Rochelle 880th out of 1314 regions with data for 2025, putting it 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 (heating Cities) in La Rochelle, year by year
| Year | Degree days | Change |
|---|---|---|
| 1950 | 1,432 Degree days | — |
| 1951 | 1,431 Degree days | -0.1% |
| 1952 | 1,439 Degree days | +0.6% |
| 1953 | 1,490 Degree days | +3.5% |
| 1954 | 1,459 Degree days | -2.1% |
| 1955 | 1,465 Degree days | +0.4% |
| 1956 | 1,766 Degree days | +20.5% |
| 1957 | 1,372 Degree days | -22.3% |
| 1958 | 1,394 Degree days | +1.6% |
| 1959 | 1,176 Degree days | -15.6% |
| 1960 | 1,325 Degree days | +12.6% |
| 1961 | 1,156 Degree days | -12.7% |
| 1962 | 1,627 Degree days | +40.7% |
| 1963 | 1,764 Degree days | +8.4% |
| 1964 | 1,613 Degree days | -8.5% |
| 1965 | 1,432 Degree days | -11.2% |
| 1966 | 1,295 Degree days | -9.6% |
| 1967 | 1,446 Degree days | +11.6% |
| 1968 | 1,423 Degree days | -1.6% |
| 1969 | 1,608 Degree days | +13.0% |
| 1970 | 1,532 Degree days | -4.7% |
| 1971 | 1,536 Degree days | +0.2% |
| 1972 | 1,468 Degree days | -4.4% |
| 1973 | 1,621 Degree days | +10.4% |
| 1974 | 1,332 Degree days | -17.8% |
| 1975 | 1,533 Degree days | +15.1% |
| 1976 | 1,497 Degree days | -2.3% |
| 1977 | 1,338 Degree days | -10.7% |
| 1978 | 1,428 Degree days | +6.8% |
| 1979 | 1,503 Degree days | +5.2% |
| 1980 | 1,589 Degree days | +5.7% |
| 1981 | 1,369 Degree days | -13.9% |
| 1982 | 1,213 Degree days | -11.4% |
| 1983 | 1,434 Degree days | +18.2% |
| 1984 | 1,420 Degree days | -1.0% |
| 1985 | 1,660 Degree days | +16.9% |
| 1986 | 1,539 Degree days | -7.2% |
| 1987 | 1,622 Degree days | +5.4% |
| 1988 | 1,194 Degree days | -26.4% |
| 1989 | 1,213 Degree days | +1.6% |
| 1990 | 1,150 Degree days | -5.2% |
| 1991 | 1,525 Degree days | +32.7% |
| 1992 | 1,406 Degree days | -7.8% |
| 1993 | 1,374 Degree days | -2.2% |
| 1994 | 1,061 Degree days | -22.8% |
| 1995 | 1,230 Degree days | +15.9% |
| 1996 | 1,432 Degree days | +16.5% |
| 1997 | 1,220 Degree days | -14.8% |
| 1998 | 1,346 Degree days | +10.4% |
| 1999 | 1,217 Degree days | -9.6% |
| 2000 | 1,211 Degree days | -0.5% |
| 2001 | 1,351 Degree days | +11.6% |
| 2002 | 1,065 Degree days | -21.2% |
| 2003 | 1,303 Degree days | +22.3% |
| 2004 | 1,376 Degree days | +5.6% |
| 2005 | 1,427 Degree days | +3.8% |
| 2006 | 1,335 Degree days | -6.5% |
| 2007 | 1,170 Degree days | -12.4% |
| 2008 | 1,351 Degree days | +15.5% |
| 2009 | 1,329 Degree days | -1.6% |
| 2010 | 1,690 Degree days | +27.2% |
| 2011 | 1,016 Degree days | -39.9% |
| 2012 | 1,332 Degree days | +31.2% |
| 2013 | 1,454 Degree days | +9.1% |
| 2014 | 1,018 Degree days | -30.0% |
| 2015 | 1,138 Degree days | +11.7% |
| 2016 | 1,213 Degree days | +6.6% |
| 2017 | 1,214 Degree days | +0.0% |
| 2018 | 1,135 Degree days | -6.4% |
| 2019 | 1,111 Degree days | -2.2% |
| 2020 | 941.45 Degree days | -15.2% |
| 2021 | 1,283 Degree days | +36.3% |
| 2022 | 1,046 Degree days | -18.5% |
| 2023 | 1,152 Degree days | +10.2% |
| 2024 | 1,121 Degree days | -2.8% |
| 2025 | 1,010 Degree days | -9.9% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1950s | 1,443 Degree days | 1,176 Degree days | 1,766 Degree days | 10 |
| 1960s | 1,469 Degree days | 1,156 Degree days | 1,764 Degree days | 10 |
| 1970s | 1,479 Degree days | 1,332 Degree days | 1,621 Degree days | 10 |
| 1980s | 1,425 Degree days | 1,194 Degree days | 1,660 Degree days | 10 |
| 1990s | 1,296 Degree days | 1,061 Degree days | 1,525 Degree days | 10 |
| 2000s | 1,292 Degree days | 1,065 Degree days | 1,427 Degree days | 10 |
| 2010s | 1,232 Degree days | 1,016 Degree days | 1,690 Degree days | 10 |
| 2020s | 1,092 Degree days | 941.45 Degree days | 1,283 Degree days | 6 |
More reference data data for La Rochelle
- Cooling and heating degree days - Cities and FUAs — Cooling degree 103.37 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs — Change in cooling 24.3 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs — Change in heating -330.88 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs — Change in heating -50.07 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs, annual growth rate -9.85 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs — Change in cooling 279.62 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs — Cooling degree 57.71 % change on previous year (2025)
- Precipitation - Cities and FUAs — Extreme precipitation days 4.5 Days per year (2024)
- Precipitation - Cities and FUAs — Change in extreme precipitation 1.87 Days per year (2024)
- Dependency ratio - Cities and FUAs 40.4 Percentage of population aged 15-64 years (2022)
Frequently asked questions
- What is cooling and heating degree days - cities and fuas in La Rochelle?
- Cooling and heating degree days - cities and fuas in La Rochelle was 1,010 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 La Rochelle?
- The highest recorded value was 1,766 Degree days in 1956.
- What is the lowest cooling and heating degree days - cities and fuas recorded in La Rochelle?
- The lowest recorded value was 941.45 Degree days in 2020.
- How does La Rochelle rank for cooling and heating degree days - cities and fuas?
- La Rochelle ranks 880th out of 1314 regions with data for 2025.
- Is cooling and heating degree days - cities and fuas rising or falling in La Rochelle?
- Over the last ten years it is down 11.2%. The long-run trend across the full record is falling.
- Where does this La Rochelle 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