Cooling and heating degree days - Cities and FUAs (heating Cities) in Dublin
Dublin: Cooling and heating degree days - Cities and FUAs (heating Cities) was 1,595 Degree days in 2025. ▼ Falling
Cooling and heating degree days - Cities and FUAs in Dublin, 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 Dublin stood at 1,595 Degree days. That is the lowest value across all 76 years on record.
Compared with earlier readings it is down 18.3% on the previous year and down 23.1% over ten years.
Over the whole period, cooling and heating degree days - cities and fuas in Dublin peaked at 2,479 Degree days in 2010 and was at its lowest, 1,595 Degree days, in 2025.
Dublin ranks 630th 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 (heating Cities) in Dublin, year by year
| Year | Degree days | Change |
|---|---|---|
| 1950 | 2,184 Degree days | — |
| 1951 | 2,275 Degree days | +4.2% |
| 1952 | 2,260 Degree days | -0.7% |
| 1953 | 1,986 Degree days | -12.1% |
| 1954 | 2,175 Degree days | +9.5% |
| 1955 | 2,232 Degree days | +2.6% |
| 1956 | 2,244 Degree days | +0.5% |
| 1957 | 1,995 Degree days | -11.1% |
| 1958 | 2,130 Degree days | +6.8% |
| 1959 | 1,908 Degree days | -10.4% |
| 1960 | 2,131 Degree days | +11.7% |
| 1961 | 1,994 Degree days | -6.4% |
| 1962 | 2,376 Degree days | +19.2% |
| 1963 | 2,462 Degree days | +3.6% |
| 1964 | 2,109 Degree days | -14.3% |
| 1965 | 2,316 Degree days | +9.8% |
| 1966 | 2,117 Degree days | -8.6% |
| 1967 | 2,205 Degree days | +4.2% |
| 1968 | 2,183 Degree days | -1.0% |
| 1969 | 2,467 Degree days | +13.0% |
| 1970 | 2,191 Degree days | -11.2% |
| 1971 | 2,000 Degree days | -8.7% |
| 1972 | 2,289 Degree days | +14.4% |
| 1973 | 2,125 Degree days | -7.1% |
| 1974 | 2,226 Degree days | +4.7% |
| 1975 | 2,130 Degree days | -4.3% |
| 1976 | 2,206 Degree days | +3.6% |
| 1977 | 2,216 Degree days | +0.5% |
| 1978 | 2,167 Degree days | -2.2% |
| 1979 | 2,436 Degree days | +12.4% |
| 1980 | 2,196 Degree days | -9.8% |
| 1981 | 2,201 Degree days | +0.2% |
| 1982 | 2,110 Degree days | -4.1% |
| 1983 | 2,093 Degree days | -0.8% |
| 1984 | 2,167 Degree days | +3.6% |
| 1985 | 2,310 Degree days | +6.6% |
| 1986 | 2,434 Degree days | +5.3% |
| 1987 | 2,231 Degree days | -8.3% |
| 1988 | 2,079 Degree days | -6.8% |
| 1989 | 1,953 Degree days | -6.1% |
| 1990 | 1,893 Degree days | -3.1% |
| 1991 | 2,095 Degree days | +10.7% |
| 1992 | 2,112 Degree days | +0.8% |
| 1993 | 2,161 Degree days | +2.3% |
| 1994 | 2,034 Degree days | -5.9% |
| 1995 | 1,991 Degree days | -2.1% |
| 1996 | 2,228 Degree days | +11.9% |
| 1997 | 1,870 Degree days | -16.0% |
| 1998 | 1,909 Degree days | +2.1% |
| 1999 | 1,976 Degree days | +3.5% |
| 2000 | 2,120 Degree days | +7.3% |
| 2001 | 2,162 Degree days | +2.0% |
| 2002 | 1,901 Degree days | -12.1% |
| 2003 | 1,966 Degree days | +3.4% |
| 2004 | 1,976 Degree days | +0.5% |
| 2005 | 1,958 Degree days | -0.9% |
| 2006 | 1,931 Degree days | -1.3% |
| 2007 | 1,842 Degree days | -4.6% |
| 2008 | 2,120 Degree days | +15.1% |
| 2009 | 2,130 Degree days | +0.4% |
| 2010 | 2,479 Degree days | +16.4% |
| 2011 | 1,940 Degree days | -21.7% |
| 2012 | 2,135 Degree days | +10.0% |
| 2013 | 2,187 Degree days | +2.4% |
| 2014 | 1,925 Degree days | -12.0% |
| 2015 | 2,074 Degree days | +7.7% |
| 2016 | 2,061 Degree days | -0.6% |
| 2017 | 1,907 Degree days | -7.5% |
| 2018 | 2,022 Degree days | +6.0% |
| 2019 | 1,984 Degree days | -1.9% |
| 2020 | 1,950 Degree days | -1.7% |
| 2021 | 1,944 Degree days | -0.3% |
| 2022 | 1,802 Degree days | -7.3% |
| 2023 | 1,854 Degree days | +2.9% |
| 2024 | 1,952 Degree days | +5.3% |
| 2025 | 1,595 Degree days | -18.3% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1950s | 2,139 Degree days | 1,908 Degree days | 2,275 Degree days | 10 |
| 1960s | 2,236 Degree days | 1,994 Degree days | 2,467 Degree days | 10 |
| 1970s | 2,199 Degree days | 2,000 Degree days | 2,436 Degree days | 10 |
| 1980s | 2,177 Degree days | 1,953 Degree days | 2,434 Degree days | 10 |
| 1990s | 2,027 Degree days | 1,870 Degree days | 2,228 Degree days | 10 |
| 2000s | 2,011 Degree days | 1,842 Degree days | 2,162 Degree days | 10 |
| 2010s | 2,072 Degree days | 1,907 Degree days | 2,479 Degree days | 10 |
| 2020s | 1,850 Degree days | 1,595 Degree days | 1,952 Degree days | 6 |
More reference data data for Dublin
- Cooling and heating degree days - Cities and FUAs — Cooling degree -63.11 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs — Change in heating -276.51 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs — Change in heating -485.76 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs — Change in cooling -1.42 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs — Cooling degree 0.0429 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs, annual growth rate -18.27 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs — Change in cooling -5.46 % change on previous year (2025)
- Cooling and heating degree days by NUTS 2 regions - monthly data -0.0438 % change on previous year (2025)
- Cooling and heating degree days by NUTS 2 regions - annual data -5.21 % change on previous year (2025)
- Precipitation - Cities and FUAs — Change in extreme precipitation 0.4332 Days per year (2024)
Frequently asked questions
- What is cooling and heating degree days - cities and fuas in Dublin?
- Cooling and heating degree days - cities and fuas in Dublin was 1,595 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 Dublin?
- The highest recorded value was 2,479 Degree days in 2010.
- What is the lowest cooling and heating degree days - cities and fuas recorded in Dublin?
- The lowest recorded value was 1,595 Degree days in 2025.
- How does Dublin rank for cooling and heating degree days - cities and fuas?
- Dublin ranks 630th out of 1314 regions with data for 2025.
- Is cooling and heating degree days - cities and fuas rising or falling in Dublin?
- Over the last ten years it is down 23.1%. The long-run trend across the full record is falling.
- Where does this Dublin 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