Cooling and heating degree days - Cities and FUAs in Calgary
Calgary: Cooling and heating degree days - Cities and FUAs was 4,146 Degree days in 2025. ▼ Falling
Cooling and heating degree days - Cities and FUAs in Calgary, 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 Calgary is 4,146 Degree days, measured in 2025.
Compared with earlier readings it is down 6.9% on the previous year and up 7.2% over ten years.
Over the whole period, cooling and heating degree days - cities and fuas in Calgary peaked at 5,500 Degree days in 1951 and was at its lowest, 3,475 Degree days, in 1987.
That places Calgary 6th out of 1314 regions with data for 2025, putting it in the top 10%.
The long-run direction has been consistently falling across the 76 years of available data.
Cooling and heating degree days - Cities and FUAs in Calgary, year by year
| Year | Degree days | Change |
|---|---|---|
| 1950 | 5,274 Degree days | — |
| 1951 | 5,500 Degree days | +4.3% |
| 1952 | 4,392 Degree days | -20.1% |
| 1953 | 4,306 Degree days | -1.9% |
| 1954 | 4,704 Degree days | +9.2% |
| 1955 | 5,222 Degree days | +11.0% |
| 1956 | 4,822 Degree days | -7.7% |
| 1957 | 4,789 Degree days | -0.7% |
| 1958 | 4,338 Degree days | -9.4% |
| 1959 | 4,943 Degree days | +14.0% |
| 1960 | 4,686 Degree days | -5.2% |
| 1961 | 4,591 Degree days | -2.0% |
| 1962 | 4,341 Degree days | -5.4% |
| 1963 | 4,164 Degree days | -4.1% |
| 1964 | 4,686 Degree days | +12.5% |
| 1965 | 5,063 Degree days | +8.1% |
| 1966 | 4,946 Degree days | -2.3% |
| 1967 | 4,788 Degree days | -3.2% |
| 1968 | 4,772 Degree days | -0.3% |
| 1969 | 4,978 Degree days | +4.3% |
| 1970 | 4,923 Degree days | -1.1% |
| 1971 | 4,880 Degree days | -0.9% |
| 1972 | 5,200 Degree days | +6.5% |
| 1973 | 4,651 Degree days | -10.6% |
| 1974 | 4,378 Degree days | -5.9% |
| 1975 | 4,898 Degree days | +11.9% |
| 1976 | 4,142 Degree days | -15.4% |
| 1977 | 4,331 Degree days | +4.6% |
| 1978 | 4,852 Degree days | +12.0% |
| 1979 | 4,615 Degree days | -4.9% |
| 1980 | 4,480 Degree days | -2.9% |
| 1981 | 3,802 Degree days | -15.1% |
| 1982 | 5,017 Degree days | +32.0% |
| 1983 | 4,399 Degree days | -12.3% |
| 1984 | 4,465 Degree days | +1.5% |
| 1985 | 4,624 Degree days | +3.6% |
| 1986 | 4,031 Degree days | -12.8% |
| 1987 | 3,475 Degree days | -13.8% |
| 1988 | 3,891 Degree days | +12.0% |
| 1989 | 4,461 Degree days | +14.7% |
| 1990 | 4,222 Degree days | -5.3% |
| 1991 | 4,112 Degree days | -2.6% |
| 1992 | 4,073 Degree days | -0.9% |
| 1993 | 4,375 Degree days | +7.4% |
| 1994 | 4,225 Degree days | -3.4% |
| 1995 | 4,541 Degree days | +7.5% |
| 1996 | 5,252 Degree days | +15.7% |
| 1997 | 4,216 Degree days | -19.7% |
| 1998 | 4,171 Degree days | -1.1% |
| 1999 | 3,870 Degree days | -7.2% |
| 2000 | 4,510 Degree days | +16.5% |
| 2001 | 4,103 Degree days | -9.0% |
| 2002 | 4,568 Degree days | +11.3% |
| 2003 | 4,383 Degree days | -4.0% |
| 2004 | 4,152 Degree days | -5.3% |
| 2005 | 4,141 Degree days | -0.3% |
| 2006 | 4,050 Degree days | -2.2% |
| 2007 | 4,202 Degree days | +3.8% |
| 2008 | 4,459 Degree days | +6.1% |
| 2009 | 4,604 Degree days | +3.2% |
| 2010 | 4,353 Degree days | -5.4% |
| 2011 | 4,552 Degree days | +4.6% |
| 2012 | 4,299 Degree days | -5.6% |
| 2013 | 4,400 Degree days | +2.3% |
| 2014 | 4,509 Degree days | +2.5% |
| 2015 | 3,869 Degree days | -14.2% |
| 2016 | 3,783 Degree days | -2.2% |
| 2017 | 4,347 Degree days | +14.9% |
| 2018 | 4,595 Degree days | +5.7% |
| 2019 | 4,659 Degree days | +1.4% |
| 2020 | 4,321 Degree days | -7.3% |
| 2021 | 4,249 Degree days | -1.7% |
| 2022 | 4,367 Degree days | +2.8% |
| 2023 | 4,087 Degree days | -6.4% |
| 2024 | 4,452 Degree days | +8.9% |
| 2025 | 4,146 Degree days | -6.9% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1950s | 4,829 Degree days | 4,306 Degree days | 5,500 Degree days | 10 |
| 1960s | 4,702 Degree days | 4,164 Degree days | 5,063 Degree days | 10 |
| 1970s | 4,687 Degree days | 4,142 Degree days | 5,200 Degree days | 10 |
| 1980s | 4,264 Degree days | 3,475 Degree days | 5,017 Degree days | 10 |
| 1990s | 4,306 Degree days | 3,870 Degree days | 5,252 Degree days | 10 |
| 2000s | 4,317 Degree days | 4,050 Degree days | 4,604 Degree days | 10 |
| 2010s | 4,337 Degree days | 3,783 Degree days | 4,659 Degree days | 10 |
| 2020s | 4,270 Degree days | 4,087 Degree days | 4,452 Degree days | 6 |
More reference data data for Calgary
- Cooling and heating degree days - Cities and FUAs — Cooling degree 0.0324 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs — Change in cooling -51.75 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs — Change in heating -145.66 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs — Change in heating -190.69 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs, annual growth rate -6.88 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs — Change in cooling -243.29 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs — Cooling degree -99.96 % change on previous year (2025)
- Precipitation - Cities and FUAs — Extreme precipitation days 2 Days per year (2024)
- Precipitation - Cities and FUAs — Change in extreme precipitation -0.9234 Days per year (2024)
- Dependency ratio - Cities and FUAs 19.9 Percentage of population aged 15-64 years (2021)
Frequently asked questions
- What is cooling and heating degree days - cities and fuas in Calgary?
- Cooling and heating degree days - cities and fuas in Calgary was 4,146 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 Calgary?
- The highest recorded value was 5,500 Degree days in 1951.
- What is the lowest cooling and heating degree days - cities and fuas recorded in Calgary?
- The lowest recorded value was 3,475 Degree days in 1987.
- How does Calgary rank for cooling and heating degree days - cities and fuas?
- Calgary ranks 6th out of 1314 regions with data for 2025.
- Is cooling and heating degree days - cities and fuas rising or falling in Calgary?
- Over the last ten years it is up 7.2%. The long-run trend across the full record is falling.
- Where does this Calgary 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