Cooling and heating degree days - Cities and FUAs (heating Cities) in Indianapolis
Indianapolis: Cooling and heating degree days - Cities and FUAs (heating Cities) was 2,247 Degree days in 2025. ▼ Falling
Cooling and heating degree days - Cities and FUAs in Indianapolis, 1950–2025
Source: Organisation for Economic Co-operation and Development. Measured in Degree days.
Analysis
In 2025, cooling and heating degree days - cities and fuas in Indianapolis stood at 2,247 Degree days.
The figure is up 15.1% on the previous year and down 0.9% over ten years.
Over the whole period, cooling and heating degree days - cities and fuas in Indianapolis peaked at 2,906 Degree days in 1978 and was at its lowest, 1,906 Degree days, in 1998.
That places Indianapolis 283rd out of 1314 regions 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 (heating Cities) in Indianapolis, year by year
| Year | Degree days | Change |
|---|---|---|
| 1950 | 2,546 Degree days | — |
| 1951 | 2,538 Degree days | -0.3% |
| 1952 | 2,240 Degree days | -11.7% |
| 1953 | 2,111 Degree days | -5.7% |
| 1954 | 2,308 Degree days | +9.3% |
| 1955 | 2,364 Degree days | +2.4% |
| 1956 | 2,339 Degree days | -1.1% |
| 1957 | 2,373 Degree days | +1.5% |
| 1958 | 2,721 Degree days | +14.6% |
| 1959 | 2,408 Degree days | -11.5% |
| 1960 | 2,738 Degree days | +13.7% |
| 1961 | 2,521 Degree days | -7.9% |
| 1962 | 2,713 Degree days | +7.6% |
| 1963 | 2,822 Degree days | +4.0% |
| 1964 | 2,389 Degree days | -15.3% |
| 1965 | 2,378 Degree days | -0.5% |
| 1966 | 2,612 Degree days | +9.9% |
| 1967 | 2,508 Degree days | -4.0% |
| 1968 | 2,569 Degree days | +2.4% |
| 1969 | 2,797 Degree days | +8.9% |
| 1970 | 2,602 Degree days | -7.0% |
| 1971 | 2,398 Degree days | -7.9% |
| 1972 | 2,685 Degree days | +12.0% |
| 1973 | 2,143 Degree days | -20.2% |
| 1974 | 2,325 Degree days | +8.5% |
| 1975 | 2,319 Degree days | -0.3% |
| 1976 | 2,560 Degree days | +10.4% |
| 1977 | 2,650 Degree days | +3.5% |
| 1978 | 2,906 Degree days | +9.7% |
| 1979 | 2,724 Degree days | -6.3% |
| 1980 | 2,701 Degree days | -0.9% |
| 1981 | 2,505 Degree days | -7.2% |
| 1982 | 2,500 Degree days | -0.2% |
| 1983 | 2,433 Degree days | -2.7% |
| 1984 | 2,476 Degree days | +1.8% |
| 1985 | 2,527 Degree days | +2.1% |
| 1986 | 2,307 Degree days | -8.7% |
| 1987 | 2,228 Degree days | -3.4% |
| 1988 | 2,562 Degree days | +15.0% |
| 1989 | 2,638 Degree days | +2.9% |
| 1990 | 1,987 Degree days | -24.7% |
| 1991 | 2,137 Degree days | +7.6% |
| 1992 | 2,278 Degree days | +6.6% |
| 1993 | 2,491 Degree days | +9.3% |
| 1994 | 2,312 Degree days | -7.2% |
| 1995 | 2,465 Degree days | +6.6% |
| 1996 | 2,637 Degree days | +7.0% |
| 1997 | 2,500 Degree days | -5.2% |
| 1998 | 1,906 Degree days | -23.8% |
| 1999 | 2,154 Degree days | +13.0% |
| 2000 | 2,466 Degree days | +14.5% |
| 2001 | 2,149 Degree days | -12.8% |
| 2002 | 2,301 Degree days | +7.1% |
| 2003 | 2,464 Degree days | +7.1% |
| 2004 | 2,277 Degree days | -7.6% |
| 2005 | 2,349 Degree days | +3.1% |
| 2006 | 2,051 Degree days | -12.7% |
| 2007 | 2,323 Degree days | +13.3% |
| 2008 | 2,464 Degree days | +6.1% |
| 2009 | 2,334 Degree days | -5.3% |
| 2010 | 2,456 Degree days | +5.2% |
| 2011 | 2,201 Degree days | -10.4% |
| 2012 | 1,932 Degree days | -12.2% |
| 2013 | 2,521 Degree days | +30.4% |
| 2014 | 2,853 Degree days | +13.2% |
| 2015 | 2,268 Degree days | -20.5% |
| 2016 | 2,079 Degree days | -8.3% |
| 2017 | 1,981 Degree days | -4.7% |
| 2018 | 2,457 Degree days | +24.0% |
| 2019 | 2,326 Degree days | -5.3% |
| 2020 | 2,090 Degree days | -10.1% |
| 2021 | 2,146 Degree days | +2.7% |
| 2022 | 2,312 Degree days | +7.7% |
| 2023 | 1,975 Degree days | -14.6% |
| 2024 | 1,952 Degree days | -1.1% |
| 2025 | 2,247 Degree days | +15.1% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1950s | 2,395 Degree days | 2,111 Degree days | 2,721 Degree days | 10 |
| 1960s | 2,605 Degree days | 2,378 Degree days | 2,822 Degree days | 10 |
| 1970s | 2,531 Degree days | 2,143 Degree days | 2,906 Degree days | 10 |
| 1980s | 2,488 Degree days | 2,228 Degree days | 2,701 Degree days | 10 |
| 1990s | 2,287 Degree days | 1,906 Degree days | 2,637 Degree days | 10 |
| 2000s | 2,318 Degree days | 2,051 Degree days | 2,466 Degree days | 10 |
| 2010s | 2,307 Degree days | 1,932 Degree days | 2,853 Degree days | 10 |
| 2020s | 2,120 Degree days | 1,952 Degree days | 2,312 Degree days | 6 |
More reference data data for Indianapolis
- Cooling and heating degree days - Cities and FUAs — Cooling degree 246.97 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs — Change in cooling -24.8 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs — Change in heating -108.42 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs — Change in heating 73.15 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs, annual growth rate 15.14 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs — Change in cooling -199.8 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs — Cooling degree -16.74 % change on previous year (2025)
- Precipitation - Cities and FUAs — Extreme precipitation days 10.62 Days per year (2024)
- Precipitation - Cities and FUAs — Change in extreme precipitation -0.874 Days per year (2024)
- Dependency ratio - Cities and FUAs 21.6 Percentage of population aged 15-64 years (2024)
Frequently asked questions
- What is cooling and heating degree days - cities and fuas in Indianapolis?
- Cooling and heating degree days - cities and fuas in Indianapolis was 2,247 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 Indianapolis?
- The highest recorded value was 2,906 Degree days in 1978.
- What is the lowest cooling and heating degree days - cities and fuas recorded in Indianapolis?
- The lowest recorded value was 1,906 Degree days in 1998.
- How does Indianapolis rank for cooling and heating degree days - cities and fuas?
- Indianapolis ranks 283rd out of 1314 regions with data for 2025.
- Is cooling and heating degree days - cities and fuas rising or falling in Indianapolis?
- Over the last ten years it is down 0.9%. The long-run trend across the full record is falling.
- Where does this Indianapolis 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