Cooling and heating degree days - Cities and FUAs in Ruse
Ruse: Cooling and heating degree days - Cities and FUAs was 1,941 Degree days in 2025. ▼ Falling
Cooling and heating degree days - Cities and FUAs in Ruse, 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 Ruse is 1,941 Degree days, measured in 2025.
That represents a change of up 14.1% on the previous year and up 5.8% over ten years.
Over the whole period, cooling and heating degree days - cities and fuas in Ruse peaked at 2,708 Degree days in 1954 and was at its lowest, 1,617 Degree days, in 2023.
Ruse ranks 421st 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 Ruse, year by year
| Year | Degree days | Change |
|---|---|---|
| 1950 | 2,006 Degree days | — |
| 1951 | 1,812 Degree days | -9.7% |
| 1952 | 2,099 Degree days | +15.8% |
| 1953 | 2,377 Degree days | +13.2% |
| 1954 | 2,708 Degree days | +14.0% |
| 1955 | 2,073 Degree days | -23.4% |
| 1956 | 2,651 Degree days | +27.9% |
| 1957 | 2,155 Degree days | -18.7% |
| 1958 | 1,998 Degree days | -7.3% |
| 1959 | 2,222 Degree days | +11.2% |
| 1960 | 1,847 Degree days | -16.9% |
| 1961 | 2,002 Degree days | +8.4% |
| 1962 | 2,227 Degree days | +11.2% |
| 1963 | 2,455 Degree days | +10.3% |
| 1964 | 2,227 Degree days | -9.3% |
| 1965 | 2,302 Degree days | +3.4% |
| 1966 | 1,935 Degree days | -15.9% |
| 1967 | 2,252 Degree days | +16.3% |
| 1968 | 2,127 Degree days | -5.5% |
| 1969 | 2,588 Degree days | +21.7% |
| 1970 | 2,069 Degree days | -20.0% |
| 1971 | 2,152 Degree days | +4.0% |
| 1972 | 2,148 Degree days | -0.2% |
| 1973 | 2,398 Degree days | +11.7% |
| 1974 | 2,155 Degree days | -10.2% |
| 1975 | 2,093 Degree days | -2.9% |
| 1976 | 2,195 Degree days | +4.9% |
| 1977 | 2,064 Degree days | -5.9% |
| 1978 | 2,203 Degree days | +6.7% |
| 1979 | 2,057 Degree days | -6.7% |
| 1980 | 2,425 Degree days | +17.9% |
| 1981 | 2,143 Degree days | -11.6% |
| 1982 | 2,200 Degree days | +2.6% |
| 1983 | 2,071 Degree days | -5.9% |
| 1984 | 2,205 Degree days | +6.5% |
| 1985 | 2,517 Degree days | +14.2% |
| 1986 | 2,236 Degree days | -11.2% |
| 1987 | 2,435 Degree days | +8.9% |
| 1988 | 2,246 Degree days | -7.7% |
| 1989 | 1,823 Degree days | -18.9% |
| 1990 | 1,833 Degree days | +0.6% |
| 1991 | 2,345 Degree days | +27.9% |
| 1992 | 2,108 Degree days | -10.1% |
| 1993 | 2,347 Degree days | +11.4% |
| 1994 | 1,845 Degree days | -21.4% |
| 1995 | 2,232 Degree days | +21.0% |
| 1996 | 2,480 Degree days | +11.1% |
| 1997 | 2,377 Degree days | -4.1% |
| 1998 | 2,250 Degree days | -5.3% |
| 1999 | 1,921 Degree days | -14.7% |
| 2000 | 1,941 Degree days | +1.1% |
| 2001 | 2,015 Degree days | +3.8% |
| 2002 | 1,980 Degree days | -1.7% |
| 2003 | 2,385 Degree days | +20.4% |
| 2004 | 1,998 Degree days | -16.2% |
| 2005 | 2,133 Degree days | +6.7% |
| 2006 | 2,064 Degree days | -3.2% |
| 2007 | 1,793 Degree days | -13.1% |
| 2008 | 1,911 Degree days | +6.5% |
| 2009 | 1,878 Degree days | -1.7% |
| 2010 | 2,079 Degree days | +10.7% |
| 2011 | 2,322 Degree days | +11.7% |
| 2012 | 2,209 Degree days | -4.9% |
| 2013 | 1,842 Degree days | -16.6% |
| 2014 | 1,898 Degree days | +3.1% |
| 2015 | 1,835 Degree days | -3.3% |
| 2016 | 1,941 Degree days | +5.8% |
| 2017 | 2,092 Degree days | +7.8% |
| 2018 | 2,025 Degree days | -3.2% |
| 2019 | 1,638 Degree days | -19.1% |
| 2020 | 1,720 Degree days | +5.0% |
| 2021 | 1,956 Degree days | +13.7% |
| 2022 | 1,805 Degree days | -7.7% |
| 2023 | 1,617 Degree days | -10.4% |
| 2024 | 1,702 Degree days | +5.3% |
| 2025 | 1,941 Degree days | +14.1% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1950s | 2,210 Degree days | 1,812 Degree days | 2,708 Degree days | 10 |
| 1960s | 2,196 Degree days | 1,847 Degree days | 2,588 Degree days | 10 |
| 1970s | 2,153 Degree days | 2,057 Degree days | 2,398 Degree days | 10 |
| 1980s | 2,230 Degree days | 1,823 Degree days | 2,517 Degree days | 10 |
| 1990s | 2,174 Degree days | 1,833 Degree days | 2,480 Degree days | 10 |
| 2000s | 2,010 Degree days | 1,793 Degree days | 2,385 Degree days | 10 |
| 2010s | 1,988 Degree days | 1,638 Degree days | 2,322 Degree days | 10 |
| 2020s | 1,790 Degree days | 1,617 Degree days | 1,956 Degree days | 6 |
More reference data data for Ruse
- Cooling and heating degree days by NUTS 2 regions - annual data 10.53 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs — Cooling degree 390.49 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs — Change in cooling 164.05 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs — Change in heating -185.1 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs — Change in heating 56.38 % change on previous year (2025)
- Cooling and heating degree days by NUTS 2 regions - monthly data 5.01 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs, annual growth rate 14.05 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs — Change in cooling -50.26 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs — Cooling degree -29.8 % change on previous year (2025)
- Precipitation - Cities and FUAs — Extreme precipitation days 4.13 Days per year (2024)
Frequently asked questions
- What is cooling and heating degree days - cities and fuas in Ruse?
- Cooling and heating degree days - cities and fuas in Ruse was 1,941 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 Ruse?
- The highest recorded value was 2,708 Degree days in 1954.
- What is the lowest cooling and heating degree days - cities and fuas recorded in Ruse?
- The lowest recorded value was 1,617 Degree days in 2023.
- How does Ruse rank for cooling and heating degree days - cities and fuas?
- Ruse ranks 421st out of 1314 regions with data for 2025.
- Is cooling and heating degree days - cities and fuas rising or falling in Ruse?
- Over the last ten years it is up 5.8%. The long-run trend across the full record is falling.
- Where does this Ruse 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