Cooling and heating degree days - Cities and FUAs in Pernik
Pernik: Cooling and heating degree days - Cities and FUAs was 2,055 Degree days in 2025. ▼ Falling
Cooling and heating degree days - Cities and FUAs in Pernik, 1950–2025
Source: Organisation for Economic Co-operation and Development. Measured in Degree days.
Analysis
The most recent figure for cooling and heating degree days - cities and fuas in Pernik is 2,055 Degree days, measured in 2025. That is the lowest value across all 76 years on record.
Compared with earlier readings it is down 15.8% on the previous year and down 21.5% over ten years.
Over the whole period, cooling and heating degree days - cities and fuas in Pernik peaked at 3,324 Degree days in 1956 and was at its lowest, 2,055 Degree days, in 2025.
That places Pernik 358th out of 1314 regions with data for 2025, putting it 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 Pernik, year by year
| Year | Degree days | Change |
|---|---|---|
| 1950 | 2,728 Degree days | — |
| 1951 | 2,628 Degree days | -3.6% |
| 1952 | 2,731 Degree days | +3.9% |
| 1953 | 3,004 Degree days | +10.0% |
| 1954 | 3,211 Degree days | +6.9% |
| 1955 | 2,814 Degree days | -12.4% |
| 1956 | 3,324 Degree days | +18.1% |
| 1957 | 2,749 Degree days | -17.3% |
| 1958 | 2,720 Degree days | -1.0% |
| 1959 | 2,979 Degree days | +9.5% |
| 1960 | 2,728 Degree days | -8.4% |
| 1961 | 2,828 Degree days | +3.7% |
| 1962 | 2,972 Degree days | +5.1% |
| 1963 | 2,966 Degree days | -0.2% |
| 1964 | 2,896 Degree days | -2.4% |
| 1965 | 3,078 Degree days | +6.3% |
| 1966 | 2,734 Degree days | -11.2% |
| 1967 | 3,004 Degree days | +9.9% |
| 1968 | 2,950 Degree days | -1.8% |
| 1969 | 3,236 Degree days | +9.7% |
| 1970 | 2,942 Degree days | -9.1% |
| 1971 | 3,008 Degree days | +2.3% |
| 1972 | 2,888 Degree days | -4.0% |
| 1973 | 3,184 Degree days | +10.2% |
| 1974 | 2,995 Degree days | -5.9% |
| 1975 | 2,930 Degree days | -2.2% |
| 1976 | 3,028 Degree days | +3.3% |
| 1977 | 2,758 Degree days | -8.9% |
| 1978 | 3,057 Degree days | +10.9% |
| 1979 | 2,805 Degree days | -8.2% |
| 1980 | 3,103 Degree days | +10.6% |
| 1981 | 3,008 Degree days | -3.1% |
| 1982 | 2,854 Degree days | -5.1% |
| 1983 | 2,893 Degree days | +1.4% |
| 1984 | 2,909 Degree days | +0.5% |
| 1985 | 3,024 Degree days | +4.0% |
| 1986 | 2,884 Degree days | -4.6% |
| 1987 | 3,076 Degree days | +6.7% |
| 1988 | 2,927 Degree days | -4.9% |
| 1989 | 2,687 Degree days | -8.2% |
| 1990 | 2,643 Degree days | -1.6% |
| 1991 | 3,066 Degree days | +16.0% |
| 1992 | 2,877 Degree days | -6.2% |
| 1993 | 2,881 Degree days | +0.1% |
| 1994 | 2,503 Degree days | -13.1% |
| 1995 | 2,955 Degree days | +18.1% |
| 1996 | 3,041 Degree days | +2.9% |
| 1997 | 3,043 Degree days | +0.1% |
| 1998 | 2,909 Degree days | -4.4% |
| 1999 | 2,715 Degree days | -6.7% |
| 2000 | 2,748 Degree days | +1.2% |
| 2001 | 2,789 Degree days | +1.5% |
| 2002 | 2,667 Degree days | -4.4% |
| 2003 | 2,897 Degree days | +8.6% |
| 2004 | 2,735 Degree days | -5.6% |
| 2005 | 2,990 Degree days | +9.4% |
| 2006 | 2,879 Degree days | -3.7% |
| 2007 | 2,561 Degree days | -11.0% |
| 2008 | 2,649 Degree days | +3.4% |
| 2009 | 2,696 Degree days | +1.8% |
| 2010 | 2,675 Degree days | -0.8% |
| 2011 | 2,843 Degree days | +6.3% |
| 2012 | 2,842 Degree days | -0.0% |
| 2013 | 2,477 Degree days | -12.9% |
| 2014 | 2,391 Degree days | -3.4% |
| 2015 | 2,616 Degree days | +9.4% |
| 2016 | 2,536 Degree days | -3.1% |
| 2017 | 2,769 Degree days | +9.2% |
| 2018 | 2,424 Degree days | -12.5% |
| 2019 | 2,360 Degree days | -2.6% |
| 2020 | 2,508 Degree days | +6.3% |
| 2021 | 2,777 Degree days | +10.7% |
| 2022 | 2,552 Degree days | -8.1% |
| 2023 | 2,484 Degree days | -2.7% |
| 2024 | 2,440 Degree days | -1.8% |
| 2025 | 2,055 Degree days | -15.8% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1950s | 2,889 Degree days | 2,628 Degree days | 3,324 Degree days | 10 |
| 1960s | 2,939 Degree days | 2,728 Degree days | 3,236 Degree days | 10 |
| 1970s | 2,959 Degree days | 2,758 Degree days | 3,184 Degree days | 10 |
| 1980s | 2,937 Degree days | 2,687 Degree days | 3,103 Degree days | 10 |
| 1990s | 2,863 Degree days | 2,503 Degree days | 3,066 Degree days | 10 |
| 2000s | 2,761 Degree days | 2,561 Degree days | 2,990 Degree days | 10 |
| 2010s | 2,593 Degree days | 2,360 Degree days | 2,843 Degree days | 10 |
| 2020s | 2,469 Degree days | 2,055 Degree days | 2,777 Degree days | 6 |
More reference data data for Pernik
- Cooling and heating degree days by NUTS 2 regions - annual data 5.78 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs — Cooling degree 51.58 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs — Change in cooling -13.11 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs — Change in heating -784.71 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs — Change in heating -96.34 % change on previous year (2025)
- Cooling and heating degree days by NUTS 2 regions - monthly data -6.31 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs, annual growth rate -15.78 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs — Change in cooling -113.59 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs — Cooling degree -67.98 % change on previous year (2025)
- Precipitation - Cities and FUAs — Extreme precipitation days 0.9999 Days per year (2024)
Frequently asked questions
- What is cooling and heating degree days - cities and fuas in Pernik?
- Cooling and heating degree days - cities and fuas in Pernik was 2,055 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 Pernik?
- The highest recorded value was 3,324 Degree days in 1956.
- What is the lowest cooling and heating degree days - cities and fuas recorded in Pernik?
- The lowest recorded value was 2,055 Degree days in 2025.
- How does Pernik rank for cooling and heating degree days - cities and fuas?
- Pernik ranks 358th out of 1314 regions with data for 2025.
- Is cooling and heating degree days - cities and fuas rising or falling in Pernik?
- Over the last ten years it is down 21.5%. The long-run trend across the full record is falling.
- Where does this Pernik 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