Ireland vs United Kingdom of Great Britain and Northern Ireland: Cooling and heating degree days - Regions — Cooling degree days days

Ireland
-0.0938 Degree days
in 2023
United Kingdom of Great Britain and Northern Ireland
0.0547 Degree days
in 2023
Ireland rank
45th
United Kingdom of Great Britain and Northern Ireland rank
42nd

Cooling and heating degree days - Regions — Cooling degree days days over time

  • Ireland
  • United Kingdom of Great Britain and Northern Ireland
02468198120022023

How they compare

United Kingdom of Great Britain and Northern Ireland currently reports 0.0547 Degree days against -0.0938 Degree days in Ireland, a difference of 0.1485 Degree days.

The two have swapped places 13 times across 43 shared years of data; in 1981 it was Ireland ahead.

Ireland ranks 45th and United Kingdom of Great Britain and Northern Ireland ranks 42nd of 48 countries.

Across the 5 decades both report, Ireland averaged higher in 1 and United Kingdom of Great Britain and Northern Ireland in 4.

Head to head by decade

Decade Ireland United Kingdom of Great Britain and Northern Ireland Difference Ahead
1980s 0.1679 Degree days -0.2294 Degree days 0.3972 Degree days Ireland
1990s -0.0598 Degree days 0.1826 Degree days 0.2424 Degree days United Kingdom of Great Britain and Northern Ireland
2000s -0.0819 Degree days 0.0701 Degree days 0.152 Degree days United Kingdom of Great Britain and Northern Ireland
2010s -0.0157 Degree days 0.1454 Degree days 0.161 Degree days United Kingdom of Great Britain and Northern Ireland
2020s 0.1764 Degree days 2.46 Degree days 2.28 Degree days United Kingdom of Great Britain and Northern Ireland

Averages of every year both report within each decade.

Frequently asked questions

Which has higher cooling and heating degree days - regions — cooling degree days days, Ireland or United Kingdom of Great Britain and Northern Ireland?
United Kingdom of Great Britain and Northern Ireland, at 0.0547 Degree days against -0.0938 Degree days in Ireland as of 2023.
What is the difference in cooling and heating degree days - regions — cooling degree days days between Ireland and United Kingdom of Great Britain and Northern Ireland?
0.1485 Degree days, with United Kingdom of Great Britain and Northern Ireland ahead.
How many years of comparable data are there for Ireland and United Kingdom of Great Britain and Northern Ireland?
43 years are reported by both, from 1981 to 2023.
How do Ireland and United Kingdom of Great Britain and Northern Ireland rank globally for cooling and heating degree days - regions — cooling degree days days?
Ireland ranks 45th and United Kingdom of Great Britain and Northern Ireland ranks 42nd of 48 countries.
Where does this data come from?
Organisation for Economic Co-operation and Development, published as Cooling and heating degree days - Regions — Cooling degree days days change compared to 1981-2010 average. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Ireland vs United Kingdom of Great Britain and Northern Ireland: Cooling and heating degree days - Regions — Cooling degree days days. Statizoid, drawing on Organisation for Economic Co-operation and Development. Retrieved 31 August 2026, from https://reference.statizoid.com/compare/cooling-and-heating-degree-days-regions-cooling-degree-days-days-change-compared-to-1981/ireland/united-kingdom/

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<a href="https://reference.statizoid.com/compare/cooling-and-heating-degree-days-regions-cooling-degree-days-days-change-compared-to-1981/ireland/united-kingdom/">Ireland vs United Kingdom of Great Britain and Northern Ireland: Cooling and heating degree days - Regions — Cooling degree days days</a> — Statizoid

About this data

Indicator
Cooling and heating degree days - Regions — Cooling degree days days change compared to 1981-2010 average
Unit
Degree days
Source
Organisation for Economic Co-operation and Development
Licence
OECD Terms and Conditions (attribution required)
Coverage
52 places, 2,236 data points, 1981–2023
Last refreshed

This dataset provides indicators on Cooling and Heating Degree Days, in large (TL2) and small (TL3) regions. Data definition and source Cooling Degree Days (CDD) quantify how hot a given period was, indicating the energy demand for cooling buildings. CDD is calculated as the sum of the differences between the daily mean temperature and a reference temperature of 22°C, for all days when the mean temperature exceeds 22°C. Heating Degree Days (HDD) quantify how cold a given period was, reflecting the energy demand for heating buildings. HDD is calculated as the sum of the differences between a reference temperature of 15°C and the daily mean temperature, for all days when the mean temperature falls below 15°C. Those indicators are based on Copernicus ERA5-Land. 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. 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. Definition of regions Regions are subnational units below national boundaries. OECD countries have two regional levels: large regions (territorial level 2 or TL2) and small regions (territorial level 3 or TL3). For more information, see the OECD Territorial grid (pdf) and the OECD Territorial Correspondence Table (xlsx). Cite this dataset OECD Regions, Cities and Local Areas database http://oe.cd/geostats. Further information OECD Local Data Portal OECD Regions and Cities at a Glance For questions and/or comments, please email RegionStat@oecd.org.