Bulgaria vs Croatia: Cooling and heating degree days - Regions — Cooling degree days

Bulgaria
186.39 Degree days
in 2023
Croatia
144.88 Degree days
in 2023
Bulgaria rank
21st
Croatia rank
23rd

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

  • Bulgaria
  • Croatia
050100150200198120022023

How they compare

Bulgaria currently reports 186.39 Degree days against 144.88 Degree days in Croatia, a difference of 41.51 Degree days.

That makes Bulgaria's figure about 1.3 times Croatia's.

The two have swapped places 26 times across 43 shared years of data; in 1981 it was Bulgaria ahead.

Bulgaria ranks 21st and Croatia ranks 23rd of 48 countries.

Across the 5 decades both report, Bulgaria averaged higher in 2 and Croatia in 3.

Head to head by decade

Decade Bulgaria Croatia Difference Ahead
1980s 54.31 Degree days 58.42 Degree days 4.11 Degree days Croatia
1990s 70.93 Degree days 72.14 Degree days 1.21 Degree days Croatia
2000s 106.9 Degree days 105.96 Degree days 0.9345 Degree days Bulgaria
2010s 120.06 Degree days 130.76 Degree days 10.7 Degree days Croatia
2020s 155.3 Degree days 148.65 Degree days 6.66 Degree days Bulgaria

Averages of every year both report within each decade.

Frequently asked questions

Which has higher cooling and heating degree days - regions — cooling degree days, Bulgaria or Croatia?
Bulgaria, at 186.39 Degree days against 144.88 Degree days in Croatia as of 2023.
What is the difference in cooling and heating degree days - regions — cooling degree days between Bulgaria and Croatia?
41.51 Degree days, with Bulgaria ahead.
How many years of comparable data are there for Bulgaria and Croatia?
43 years are reported by both, from 1981 to 2023.
How do Bulgaria and Croatia rank globally for cooling and heating degree days - regions — cooling degree days?
Bulgaria ranks 21st and Croatia ranks 23rd 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. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Bulgaria vs Croatia: Cooling and heating degree days - Regions — Cooling degree days. Statizoid, drawing on Organisation for Economic Co-operation and Development. Retrieved 20 August 2026, from https://reference.statizoid.com/compare/cooling-and-heating-degree-days-regions-cooling-degree-days/bulgaria/croatia/

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About this data

Indicator
Cooling and heating degree days - Regions — Cooling degree days
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.