Cooling and heating degree days - Cities and FUAs — Change in cooling in Waterford
Waterford: Cooling and heating degree days - Cities and FUAs — Change in cooling was -0.4071 Degree days in 2025. ◆ Volatile
Cooling and heating degree days - Cities and FUAs — Change in cooling in Waterford, 1950–2025
Source: Organisation for Economic Co-operation and Development. Measured in Degree days.
Analysis
Waterford recorded -0.4071 Degree days for cooling and heating degree days - cities and fuas — change in cooling in 2025. That is the lowest value across all 76 years on record.
That represents a change of down 2.6% on the previous year and unchanged over ten years.
Over the whole period, cooling and heating degree days - cities and fuas — change in cooling in Waterford peaked at 3.35 Degree days in 1995 and was at its lowest, -0.4071 Degree days, in 1950.
Waterford ranks 477th of 1314 regions on this measure, in the middle of the range.
The series is highly variable year to year, so single readings are best treated with caution.
Cooling and heating degree days - Cities and FUAs — Change in cooling in Waterford, year by year
| Year | Degree days | Change |
|---|---|---|
| 1950 | -0.4071 Degree days | — |
| 1951 | -0.259 Degree days | -36.4% |
| 1952 | -0.2905 Degree days | +12.2% |
| 1953 | -0.3908 Degree days | +34.5% |
| 1954 | -0.4071 Degree days | +4.2% |
| 1955 | 0.7631 Degree days | -287.5% |
| 1956 | -0.4071 Degree days | -153.3% |
| 1957 | -0.2947 Degree days | -27.6% |
| 1958 | -0.2954 Degree days | +0.2% |
| 1959 | -0.0728 Degree days | -75.4% |
| 1960 | -0.2495 Degree days | +242.8% |
| 1961 | -0.3653 Degree days | +46.4% |
| 1962 | -0.4071 Degree days | +11.4% |
| 1963 | -0.4071 Degree days | -0.0% |
| 1964 | -0.4071 Degree days | -0.0% |
| 1965 | -0.4071 Degree days | -0.0% |
| 1966 | -0.1442 Degree days | -64.6% |
| 1967 | -0.4071 Degree days | +182.2% |
| 1968 | -0.4071 Degree days | -0.0% |
| 1969 | -0.2056 Degree days | -49.5% |
| 1970 | -0.3354 Degree days | +63.1% |
| 1971 | -0.3627 Degree days | +8.1% |
| 1972 | -0.2802 Degree days | -22.7% |
| 1973 | -0.1469 Degree days | -47.6% |
| 1974 | -0.4071 Degree days | +177.0% |
| 1975 | -0.1863 Degree days | -54.2% |
| 1976 | 1.73 Degree days | -1026.7% |
| 1977 | -0.0809 Degree days | -104.7% |
| 1978 | -0.4071 Degree days | +402.9% |
| 1979 | -0.3869 Degree days | -5.0% |
| 1980 | -0.4071 Degree days | +5.2% |
| 1981 | -0.3868 Degree days | -5.0% |
| 1982 | -0.4032 Degree days | +4.2% |
| 1983 | 2.35 Degree days | -683.3% |
| 1984 | -0.1583 Degree days | -106.7% |
| 1985 | -0.4071 Degree days | +157.2% |
| 1986 | -0.4071 Degree days | -0.0% |
| 1987 | -0.4071 Degree days | -0.0% |
| 1988 | -0.2961 Degree days | -27.3% |
| 1989 | 2.18 Degree days | -836.4% |
| 1990 | 0.1088 Degree days | -95.0% |
| 1991 | 0.0792 Degree days | -27.2% |
| 1992 | -0.4071 Degree days | -614.1% |
| 1993 | -0.4071 Degree days | -0.0% |
| 1994 | -0.4071 Degree days | -0.0% |
| 1995 | 3.35 Degree days | -924.2% |
| 1996 | -0.4071 Degree days | -112.1% |
| 1997 | -0.4056 Degree days | -0.4% |
| 1998 | -0.4071 Degree days | +0.4% |
| 1999 | -0.1584 Degree days | -61.1% |
| 2000 | -0.4071 Degree days | +157.0% |
| 2001 | -0.3222 Degree days | -20.9% |
| 2002 | -0.4071 Degree days | +26.3% |
| 2003 | 0.161 Degree days | -139.6% |
| 2004 | -0.2692 Degree days | -267.1% |
| 2005 | -0.1287 Degree days | -52.2% |
| 2006 | -0.0115 Degree days | -91.1% |
| 2007 | -0.4071 Degree days | +3435.6% |
| 2008 | -0.4046 Degree days | -0.6% |
| 2009 | -0.4071 Degree days | +0.6% |
| 2010 | -0.4071 Degree days | -0.0% |
| 2011 | -0.4071 Degree days | -0.0% |
| 2012 | -0.4071 Degree days | -0.0% |
| 2013 | 1.17 Degree days | -387.6% |
| 2014 | -0.3242 Degree days | -127.7% |
| 2015 | -0.4071 Degree days | +25.6% |
| 2016 | -0.3967 Degree days | -2.6% |
| 2017 | -0.2957 Degree days | -25.5% |
| 2018 | 1.28 Degree days | -533.1% |
| 2019 | -0.4071 Degree days | -131.8% |
| 2020 | -0.112 Degree days | -72.5% |
| 2021 | 0.8375 Degree days | -848.0% |
| 2022 | 3.07 Degree days | +266.9% |
| 2023 | -0.0281 Degree days | -100.9% |
| 2024 | -0.3968 Degree days | +1312.8% |
| 2025 | -0.4071 Degree days | +2.6% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1950s | -0.2061 Degree days | -0.4071 Degree days | 0.7631 Degree days | 10 |
| 1960s | -0.3407 Degree days | -0.4071 Degree days | -0.1442 Degree days | 10 |
| 1970s | -0.0867 Degree days | -0.4071 Degree days | 1.73 Degree days | 10 |
| 1980s | 0.166 Degree days | -0.4071 Degree days | 2.35 Degree days | 10 |
| 1990s | 0.0944 Degree days | -0.4071 Degree days | 3.35 Degree days | 10 |
| 2000s | -0.2603 Degree days | -0.4071 Degree days | 0.161 Degree days | 10 |
| 2010s | -0.0601 Degree days | -0.4071 Degree days | 1.28 Degree days | 10 |
| 2020s | 0.4943 Degree days | -0.4071 Degree days | 3.07 Degree days | 6 |
More reference data data for Waterford
- Cooling and heating degree days - Cities and FUAs — Cooling degree 0 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs 1,428 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs — Change in heating -333.99 Degree days (2025)
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Frequently asked questions
- What is cooling and heating degree days - cities and fuas — change in cooling in Waterford?
- Cooling and heating degree days - cities and fuas — change in cooling in Waterford was -0.4071 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 — change in cooling recorded in Waterford?
- The highest recorded value was 3.35 Degree days in 1995.
- What is the lowest cooling and heating degree days - cities and fuas — change in cooling recorded in Waterford?
- The lowest recorded value was -0.4071 Degree days in 1950.
- How does Waterford rank for cooling and heating degree days - cities and fuas — change in cooling?
- Waterford ranks 477th out of 1314 regions with data for 2025.
- Is cooling and heating degree days - cities and fuas — change in cooling rising or falling in Waterford?
- Over the last ten years it is unchanged. The long-run trend across the full record is volatile.
- Where does this Waterford 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 — Change in cooling degree days from 1981–2010 period to 2020–24 period. 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