Cooling and heating degree days - Cities and FUAs in Varna
Varna: Cooling and heating degree days - Cities and FUAs was 1,490 Degree days in 2025. ▼ Falling
Cooling and heating degree days - Cities and FUAs in Varna, 1950–2025
Source: Organisation for Economic Co-operation and Development. Measured in Degree days.
Analysis
Varna recorded 1,490 Degree days for cooling and heating degree days - cities and fuas in 2025. That is the lowest value across all 76 years on record.
Compared with earlier readings it is down 5.7% on the previous year and down 11.7% over ten years.
Over the whole period, cooling and heating degree days - cities and fuas in Varna peaked at 2,365 Degree days in 1954 and was at its lowest, 1,490 Degree days, in 2025.
Varna ranks 691st 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 in Varna, year by year
| Year | Degree days | Change |
|---|---|---|
| 1950 | 1,822 Degree days | — |
| 1951 | 1,717 Degree days | -5.8% |
| 1952 | 1,817 Degree days | +5.8% |
| 1953 | 2,158 Degree days | +18.8% |
| 1954 | 2,365 Degree days | +9.6% |
| 1955 | 1,758 Degree days | -25.7% |
| 1956 | 2,276 Degree days | +29.5% |
| 1957 | 1,964 Degree days | -13.7% |
| 1958 | 1,783 Degree days | -9.2% |
| 1959 | 2,021 Degree days | +13.3% |
| 1960 | 1,662 Degree days | -17.7% |
| 1961 | 1,779 Degree days | +7.0% |
| 1962 | 1,811 Degree days | +1.8% |
| 1963 | 2,091 Degree days | +15.5% |
| 1964 | 2,011 Degree days | -3.8% |
| 1965 | 1,994 Degree days | -0.9% |
| 1966 | 1,553 Degree days | -22.1% |
| 1967 | 2,002 Degree days | +29.0% |
| 1968 | 1,858 Degree days | -7.2% |
| 1969 | 2,129 Degree days | +14.6% |
| 1970 | 1,720 Degree days | -19.2% |
| 1971 | 1,888 Degree days | +9.8% |
| 1972 | 1,961 Degree days | +3.9% |
| 1973 | 2,052 Degree days | +4.6% |
| 1974 | 1,975 Degree days | -3.7% |
| 1975 | 1,881 Degree days | -4.8% |
| 1976 | 2,040 Degree days | +8.4% |
| 1977 | 1,841 Degree days | -9.8% |
| 1978 | 1,929 Degree days | +4.8% |
| 1979 | 1,752 Degree days | -9.2% |
| 1980 | 2,075 Degree days | +18.4% |
| 1981 | 1,895 Degree days | -8.7% |
| 1982 | 1,953 Degree days | +3.1% |
| 1983 | 1,846 Degree days | -5.5% |
| 1984 | 1,944 Degree days | +5.3% |
| 1985 | 2,124 Degree days | +9.3% |
| 1986 | 1,994 Degree days | -6.1% |
| 1987 | 2,218 Degree days | +11.2% |
| 1988 | 2,050 Degree days | -7.6% |
| 1989 | 1,737 Degree days | -15.3% |
| 1990 | 1,623 Degree days | -6.5% |
| 1991 | 2,098 Degree days | +29.3% |
| 1992 | 1,996 Degree days | -4.9% |
| 1993 | 2,070 Degree days | +3.7% |
| 1994 | 1,731 Degree days | -16.4% |
| 1995 | 1,950 Degree days | +12.7% |
| 1996 | 2,139 Degree days | +9.7% |
| 1997 | 2,111 Degree days | -1.3% |
| 1998 | 1,930 Degree days | -8.6% |
| 1999 | 1,717 Degree days | -11.1% |
| 2000 | 1,795 Degree days | +4.6% |
| 2001 | 1,848 Degree days | +2.9% |
| 2002 | 1,789 Degree days | -3.2% |
| 2003 | 2,200 Degree days | +22.9% |
| 2004 | 1,797 Degree days | -18.3% |
| 2005 | 1,921 Degree days | +6.9% |
| 2006 | 1,941 Degree days | +1.0% |
| 2007 | 1,690 Degree days | -12.9% |
| 2008 | 1,683 Degree days | -0.4% |
| 2009 | 1,705 Degree days | +1.3% |
| 2010 | 1,772 Degree days | +3.9% |
| 2011 | 2,082 Degree days | +17.5% |
| 2012 | 1,874 Degree days | -10.0% |
| 2013 | 1,690 Degree days | -9.8% |
| 2014 | 1,599 Degree days | -5.4% |
| 2015 | 1,688 Degree days | +5.6% |
| 2016 | 1,745 Degree days | +3.4% |
| 2017 | 1,863 Degree days | +6.7% |
| 2018 | 1,749 Degree days | -6.1% |
| 2019 | 1,495 Degree days | -14.5% |
| 2020 | 1,530 Degree days | +2.3% |
| 2021 | 1,664 Degree days | +8.8% |
| 2022 | 1,641 Degree days | -1.3% |
| 2023 | 1,519 Degree days | -7.5% |
| 2024 | 1,580 Degree days | +4.0% |
| 2025 | 1,490 Degree days | -5.7% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1950s | 1,968 Degree days | 1,717 Degree days | 2,365 Degree days | 10 |
| 1960s | 1,889 Degree days | 1,553 Degree days | 2,129 Degree days | 10 |
| 1970s | 1,904 Degree days | 1,720 Degree days | 2,052 Degree days | 10 |
| 1980s | 1,984 Degree days | 1,737 Degree days | 2,218 Degree days | 10 |
| 1990s | 1,937 Degree days | 1,623 Degree days | 2,139 Degree days | 10 |
| 2000s | 1,837 Degree days | 1,683 Degree days | 2,200 Degree days | 10 |
| 2010s | 1,756 Degree days | 1,495 Degree days | 2,082 Degree days | 10 |
| 2020s | 1,571 Degree days | 1,490 Degree days | 1,664 Degree days | 6 |
More reference data data for Varna
- Cooling and heating degree days by NUTS 2 regions - annual data 5.36 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs — Cooling degree 184.04 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs — Change in cooling 45.57 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs — Change in heating -418.63 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs — Change in heating -27.25 % change on previous year (2025)
- Cooling and heating degree days by NUTS 2 regions - monthly data 1.37 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs, annual growth rate -5.67 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs — Change in cooling -73.58 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs — Cooling degree -40.82 % change on previous year (2025)
- Precipitation - Cities and FUAs — Extreme precipitation days 3.7 Days per year (2024)
Frequently asked questions
- What is cooling and heating degree days - cities and fuas in Varna?
- Cooling and heating degree days - cities and fuas in Varna was 1,490 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 Varna?
- The highest recorded value was 2,365 Degree days in 1954.
- What is the lowest cooling and heating degree days - cities and fuas recorded in Varna?
- The lowest recorded value was 1,490 Degree days in 2025.
- How does Varna rank for cooling and heating degree days - cities and fuas?
- Varna ranks 691st out of 1314 regions with data for 2025.
- Is cooling and heating degree days - cities and fuas rising or falling in Varna?
- Over the last ten years it is down 11.7%. The long-run trend across the full record is falling.
- Where does this Varna 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