Cooling and heating degree days - Cities and FUAs in Serres
Serres: Cooling and heating degree days - Cities and FUAs was 1,338 Degree days in 2025. ▼ Falling
Cooling and heating degree days - Cities and FUAs in Serres, 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 Serres stood at 1,338 Degree days.
Compared with earlier readings it is down 3.9% on the previous year and down 13.1% over ten years.
Over the whole period, cooling and heating degree days - cities and fuas in Serres peaked at 1,997 Degree days in 1956 and was at its lowest, 1,315 Degree days, in 2014.
That places Serres 757th 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 in Serres, year by year
| Year | Degree days | Change |
|---|---|---|
| 1950 | 1,625 Degree days | — |
| 1951 | 1,485 Degree days | -8.6% |
| 1952 | 1,513 Degree days | +1.9% |
| 1953 | 1,866 Degree days | +23.4% |
| 1954 | 1,939 Degree days | +3.9% |
| 1955 | 1,502 Degree days | -22.5% |
| 1956 | 1,997 Degree days | +32.9% |
| 1957 | 1,665 Degree days | -16.6% |
| 1958 | 1,595 Degree days | -4.2% |
| 1959 | 1,756 Degree days | +10.1% |
| 1960 | 1,560 Degree days | -11.2% |
| 1961 | 1,567 Degree days | +0.5% |
| 1962 | 1,729 Degree days | +10.4% |
| 1963 | 1,747 Degree days | +1.1% |
| 1964 | 1,745 Degree days | -0.1% |
| 1965 | 1,826 Degree days | +4.6% |
| 1966 | 1,462 Degree days | -19.9% |
| 1967 | 1,831 Degree days | +25.2% |
| 1968 | 1,702 Degree days | -7.0% |
| 1969 | 1,811 Degree days | +6.4% |
| 1970 | 1,655 Degree days | -8.6% |
| 1971 | 1,770 Degree days | +6.9% |
| 1972 | 1,763 Degree days | -0.4% |
| 1973 | 1,893 Degree days | +7.4% |
| 1974 | 1,754 Degree days | -7.4% |
| 1975 | 1,739 Degree days | -0.9% |
| 1976 | 1,805 Degree days | +3.8% |
| 1977 | 1,516 Degree days | -16.0% |
| 1978 | 1,777 Degree days | +17.3% |
| 1979 | 1,635 Degree days | -8.0% |
| 1980 | 1,867 Degree days | +14.2% |
| 1981 | 1,847 Degree days | -1.1% |
| 1982 | 1,800 Degree days | -2.5% |
| 1983 | 1,761 Degree days | -2.2% |
| 1984 | 1,703 Degree days | -3.2% |
| 1985 | 1,724 Degree days | +1.2% |
| 1986 | 1,756 Degree days | +1.8% |
| 1987 | 1,781 Degree days | +1.4% |
| 1988 | 1,781 Degree days | +0.0% |
| 1989 | 1,628 Degree days | -8.6% |
| 1990 | 1,511 Degree days | -7.2% |
| 1991 | 1,808 Degree days | +19.7% |
| 1992 | 1,757 Degree days | -2.8% |
| 1993 | 1,795 Degree days | +2.2% |
| 1994 | 1,460 Degree days | -18.6% |
| 1995 | 1,743 Degree days | +19.4% |
| 1996 | 1,788 Degree days | +2.6% |
| 1997 | 1,796 Degree days | +0.4% |
| 1998 | 1,647 Degree days | -8.3% |
| 1999 | 1,574 Degree days | -4.4% |
| 2000 | 1,621 Degree days | +3.0% |
| 2001 | 1,656 Degree days | +2.2% |
| 2002 | 1,516 Degree days | -8.5% |
| 2003 | 1,765 Degree days | +16.4% |
| 2004 | 1,635 Degree days | -7.4% |
| 2005 | 1,738 Degree days | +6.2% |
| 2006 | 1,697 Degree days | -2.3% |
| 2007 | 1,547 Degree days | -8.9% |
| 2008 | 1,498 Degree days | -3.2% |
| 2009 | 1,511 Degree days | +0.9% |
| 2010 | 1,469 Degree days | -2.8% |
| 2011 | 1,794 Degree days | +22.1% |
| 2012 | 1,636 Degree days | -8.8% |
| 2013 | 1,432 Degree days | -12.5% |
| 2014 | 1,315 Degree days | -8.2% |
| 2015 | 1,540 Degree days | +17.1% |
| 2016 | 1,481 Degree days | -3.8% |
| 2017 | 1,589 Degree days | +7.3% |
| 2018 | 1,375 Degree days | -13.5% |
| 2019 | 1,346 Degree days | -2.1% |
| 2020 | 1,466 Degree days | +8.9% |
| 2021 | 1,562 Degree days | +6.5% |
| 2022 | 1,524 Degree days | -2.4% |
| 2023 | 1,437 Degree days | -5.7% |
| 2024 | 1,393 Degree days | -3.1% |
| 2025 | 1,338 Degree days | -3.9% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1950s | 1,694 Degree days | 1,485 Degree days | 1,997 Degree days | 10 |
| 1960s | 1,698 Degree days | 1,462 Degree days | 1,831 Degree days | 10 |
| 1970s | 1,731 Degree days | 1,516 Degree days | 1,893 Degree days | 10 |
| 1980s | 1,765 Degree days | 1,628 Degree days | 1,867 Degree days | 10 |
| 1990s | 1,688 Degree days | 1,460 Degree days | 1,808 Degree days | 10 |
| 2000s | 1,618 Degree days | 1,498 Degree days | 1,765 Degree days | 10 |
| 2010s | 1,498 Degree days | 1,315 Degree days | 1,794 Degree days | 10 |
| 2020s | 1,453 Degree days | 1,338 Degree days | 1,562 Degree days | 6 |
More reference data data for Serres
- Cooling and heating degree days by NUTS 2 regions - annual data 7.4 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs — Cooling degree 483.98 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs — Change in cooling 148.19 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs — Change in heating -339.31 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs — Change in heating -19.29 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs — Change in cooling -50.34 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs, annual growth rate -3.94 % change on previous year (2025)
- Cooling and heating degree days by NUTS 2 regions - monthly data -0.8538 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs — Cooling degree -23.68 % change on previous year (2025)
- Precipitation - Cities and FUAs — Extreme precipitation days 6.67 Days per year (2024)
Frequently asked questions
- What is cooling and heating degree days - cities and fuas in Serres?
- Cooling and heating degree days - cities and fuas in Serres was 1,338 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 Serres?
- The highest recorded value was 1,997 Degree days in 1956.
- What is the lowest cooling and heating degree days - cities and fuas recorded in Serres?
- The lowest recorded value was 1,315 Degree days in 2014.
- How does Serres rank for cooling and heating degree days - cities and fuas?
- Serres ranks 757th out of 1314 regions with data for 2025.
- Is cooling and heating degree days - cities and fuas rising or falling in Serres?
- Over the last ten years it is down 13.1%. The long-run trend across the full record is falling.
- Where does this Serres 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