Belgium vs Bulgaria: Cooling and heating degree days - Regions
Cooling and heating degree days - Regions over time
- Belgium
- Bulgaria
How they compare
Belgium currently reports 1,735 Degree days against 1,728 Degree days in Bulgaria, a difference of 7 Degree days.
The two have swapped places 16 times across 43 shared years of data; in 1981 it was Belgium ahead.
Belgium ranks 26th and Bulgaria ranks 27th of 48 countries.
Bulgaria has averaged higher in every one of the 5 decades both report.
Head to head by decade
| Decade | Belgium | Bulgaria | Difference | Ahead |
|---|---|---|---|---|
| 1980s | 2,270 Degree days | 2,314 Degree days | 44.31 Degree days | Bulgaria |
| 1990s | 2,133 Degree days | 2,274 Degree days | 140.98 Degree days | Bulgaria |
| 2000s | 2,014 Degree days | 2,148 Degree days | 133.63 Degree days | Bulgaria |
| 2010s | 2,002 Degree days | 2,044 Degree days | 41.59 Degree days | Bulgaria |
| 2020s | 1,800 Degree days | 1,912 Degree days | 111.63 Degree days | Bulgaria |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher cooling and heating degree days - regions, Belgium or Bulgaria?
- Belgium, at 1,735 Degree days against 1,728 Degree days in Bulgaria as of 2023.
- What is the difference in cooling and heating degree days - regions between Belgium and Bulgaria?
- 7 Degree days, with Belgium ahead.
- How many years of comparable data are there for Belgium and Bulgaria?
- 43 years are reported by both, from 1981 to 2023.
- How do Belgium and Bulgaria rank globally for cooling and heating degree days - regions?
- Belgium ranks 26th and Bulgaria ranks 27th of 48 countries.
- Where does this data come from?
- Organisation for Economic Co-operation and Development, published as Cooling and heating degree days - Regions. Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
<p style="text-align: justify;">This dataset provides indicators on Cooling and Heating Degree Days, in large (TL2) and small (TL3) regions.</p> <p><strong>Data definition and source</strong></p> <ul> <li>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.</li> <li>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.</li> </ul> <div id="subgroup-hdd" class="flex flex-col gap-2"> <div class="flex items-start gap-2" style="text-align: justify;">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.</div> <div class="flex items-start gap-2" style="text-align: justify;"><br />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.</div> </div> <p><strong>Definition of regions</strong></p> <p style="text-align: justify;">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 <a href="https://webfs-cfe.oecd.org/files/.Stat/region/OECD_territorial-grid_TL2024.pdf">(pdf)</a> and the OECD Territorial Correspondence Table <a href="https://webfs-cfe.oecd.org/files/.Stat/region/OECD%20Territorial%20correspondence%20-%20TL2024c.xlsx">(xlsx)</a>. </p> <p><strong>Cite this dataset</strong></p> <p>OECD Regions, Cities and Local Areas database <a href="http://oe.cd/geostats">http://oe.cd/geostats</a>.</p> <p><strong>Further information</strong></p> <ul> <li><a href="https://localdataportal.oecd.org/">OECD Local Data Portal</a> </li> <li><a href="https://www.oecd.org/en/publications/oecd-regions-and-cities-at-a-glance-2024_f42db3bf-en.html">OECD Regions and Cities at a Glance</a></li> </ul> <p>For questions and/or comments, please email <a href="mailto:RegionStat@oecd.org">RegionStat@oecd.org</a>.</p>