Cooling and heating degree days - Cities and FUAs in Gera
Gera: Cooling and heating degree days - Cities and FUAs was 2,453 Degree days in 2025. ▼ Falling
Cooling and heating degree days - Cities and FUAs in Gera, 1950–2025
Source: Organisation for Economic Co-operation and Development. Measured in Degree days.
Analysis
Gera recorded 2,453 Degree days for cooling and heating degree days - cities and fuas in 2025.
That represents a change of up 16.2% on the previous year and up 10.5% over ten years.
Over the whole period, cooling and heating degree days - cities and fuas in Gera peaked at 3,295 Degree days in 1956 and was at its lowest, 2,049 Degree days, in 2014.
That places Gera 185th out of 1314 groups with data for 2025, putting it in the top quarter.
The long-run direction has been consistently falling across the 76 years of available data.
Cooling and heating degree days - Cities and FUAs in Gera, year by year
| Year | Degree days | Change |
|---|---|---|
| 1950 | 2,749 Degree days | — |
| 1951 | 2,576 Degree days | -6.3% |
| 1952 | 2,996 Degree days | +16.3% |
| 1953 | 2,539 Degree days | -15.2% |
| 1954 | 2,942 Degree days | +15.9% |
| 1955 | 3,081 Degree days | +4.7% |
| 1956 | 3,295 Degree days | +7.0% |
| 1957 | 2,627 Degree days | -20.3% |
| 1958 | 2,755 Degree days | +4.9% |
| 1959 | 2,525 Degree days | -8.4% |
| 1960 | 2,695 Degree days | +6.7% |
| 1961 | 2,432 Degree days | -9.8% |
| 1962 | 3,100 Degree days | +27.5% |
| 1963 | 3,199 Degree days | +3.2% |
| 1964 | 2,928 Degree days | -8.5% |
| 1965 | 2,948 Degree days | +0.7% |
| 1966 | 2,653 Degree days | -10.0% |
| 1967 | 2,486 Degree days | -6.3% |
| 1968 | 2,805 Degree days | +12.8% |
| 1969 | 3,174 Degree days | +13.2% |
| 1970 | 2,988 Degree days | -5.8% |
| 1971 | 2,720 Degree days | -9.0% |
| 1972 | 2,819 Degree days | +3.6% |
| 1973 | 2,875 Degree days | +2.0% |
| 1974 | 2,510 Degree days | -12.7% |
| 1975 | 2,581 Degree days | +2.8% |
| 1976 | 2,822 Degree days | +9.3% |
| 1977 | 2,527 Degree days | -10.4% |
| 1978 | 2,854 Degree days | +12.9% |
| 1979 | 2,921 Degree days | +2.3% |
| 1980 | 3,003 Degree days | +2.8% |
| 1981 | 2,812 Degree days | -6.4% |
| 1982 | 2,531 Degree days | -10.0% |
| 1983 | 2,556 Degree days | +1.0% |
| 1984 | 2,792 Degree days | +9.2% |
| 1985 | 3,037 Degree days | +8.8% |
| 1986 | 2,858 Degree days | -5.9% |
| 1987 | 3,106 Degree days | +8.7% |
| 1988 | 2,455 Degree days | -21.0% |
| 1989 | 2,272 Degree days | -7.4% |
| 1990 | 2,247 Degree days | -1.1% |
| 1991 | 2,707 Degree days | +20.5% |
| 1992 | 2,495 Degree days | -7.8% |
| 1993 | 2,686 Degree days | +7.7% |
| 1994 | 2,337 Degree days | -13.0% |
| 1995 | 2,642 Degree days | +13.1% |
| 1996 | 3,183 Degree days | +20.5% |
| 1997 | 2,695 Degree days | -15.3% |
| 1998 | 2,505 Degree days | -7.0% |
| 1999 | 2,390 Degree days | -4.6% |
| 2000 | 2,204 Degree days | -7.8% |
| 2001 | 2,582 Degree days | +17.2% |
| 2002 | 2,442 Degree days | -5.4% |
| 2003 | 2,634 Degree days | +7.9% |
| 2004 | 2,593 Degree days | -1.6% |
| 2005 | 2,582 Degree days | -0.4% |
| 2006 | 2,472 Degree days | -4.3% |
| 2007 | 2,224 Degree days | -10.0% |
| 2008 | 2,384 Degree days | +7.2% |
| 2009 | 2,502 Degree days | +5.0% |
| 2010 | 3,088 Degree days | +23.4% |
| 2011 | 2,339 Degree days | -24.3% |
| 2012 | 2,531 Degree days | +8.2% |
| 2013 | 2,740 Degree days | +8.3% |
| 2014 | 2,049 Degree days | -25.2% |
| 2015 | 2,220 Degree days | +8.3% |
| 2016 | 2,419 Degree days | +9.0% |
| 2017 | 2,344 Degree days | -3.1% |
| 2018 | 2,223 Degree days | -5.2% |
| 2019 | 2,170 Degree days | -2.4% |
| 2020 | 2,106 Degree days | -3.0% |
| 2021 | 2,576 Degree days | +22.3% |
| 2022 | 2,208 Degree days | -14.3% |
| 2023 | 2,232 Degree days | +1.1% |
| 2024 | 2,110 Degree days | -5.5% |
| 2025 | 2,453 Degree days | +16.2% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1950s | 2,809 Degree days | 2,525 Degree days | 3,295 Degree days | 10 |
| 1960s | 2,842 Degree days | 2,432 Degree days | 3,199 Degree days | 10 |
| 1970s | 2,762 Degree days | 2,510 Degree days | 2,988 Degree days | 10 |
| 1980s | 2,742 Degree days | 2,272 Degree days | 3,106 Degree days | 10 |
| 1990s | 2,589 Degree days | 2,247 Degree days | 3,183 Degree days | 10 |
| 2000s | 2,462 Degree days | 2,204 Degree days | 2,634 Degree days | 10 |
| 2010s | 2,412 Degree days | 2,049 Degree days | 3,088 Degree days | 10 |
| 2020s | 2,281 Degree days | 2,106 Degree days | 2,576 Degree days | 6 |
More reference data data for Gera
- Cooling and heating degree days - Cities and FUAs — Cooling degree 23.75 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs — Change in cooling -22.17 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs — Change in heating -147.21 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs — Change in heating 69.96 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs, annual growth rate 16.24 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs — Change in cooling -150.22 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs — Cooling degree -73.63 % change on previous year (2025)
- Precipitation - Cities and FUAs — Extreme precipitation days 1.37 Days per year (2024)
- Precipitation - Cities and FUAs — Change in extreme precipitation -0.6631 Days per year (2024)
- Dependency ratio - Cities and FUAs 51.1 Percentage of population aged 15-64 years (2025)
Frequently asked questions
- What is cooling and heating degree days - cities and fuas in Gera?
- Cooling and heating degree days - cities and fuas in Gera was 2,453 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 Gera?
- The highest recorded value was 3,295 Degree days in 1956.
- What is the lowest cooling and heating degree days - cities and fuas recorded in Gera?
- The lowest recorded value was 2,049 Degree days in 2014.
- How does Gera rank for cooling and heating degree days - cities and fuas?
- Gera ranks 185th out of 1314 groups with data for 2025.
- Is cooling and heating degree days - cities and fuas rising or falling in Gera?
- Over the last ten years it is up 10.5%. The long-run trend across the full record is falling.
- Where does this Gera 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