Cooling and heating degree days - Cities and FUAs in Montreal
Montreal: Cooling and heating degree days - Cities and FUAs was 3,597 Degree days in 2025. ▼ Falling
Cooling and heating degree days - Cities and FUAs in Montreal, 1950–2025
Source: Organisation for Economic Co-operation and Development. Measured in Degree days.
Analysis
Montreal recorded 3,597 Degree days for cooling and heating degree days - cities and fuas in 2025.
Compared with earlier readings it is up 15.7% on the previous year and down 1.8% over ten years.
Over the whole period, cooling and heating degree days - cities and fuas in Montreal peaked at 4,221 Degree days in 1972 and was at its lowest, 3,109 Degree days, in 2024.
That places Montreal 26th 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 Montreal, year by year
| Year | Degree days | Change |
|---|---|---|
| 1950 | 3,791 Degree days | — |
| 1951 | 3,642 Degree days | -3.9% |
| 1952 | 3,634 Degree days | -0.2% |
| 1953 | 3,247 Degree days | -10.7% |
| 1954 | 3,854 Degree days | +18.7% |
| 1955 | 3,887 Degree days | +0.9% |
| 1956 | 3,864 Degree days | -0.6% |
| 1957 | 3,554 Degree days | -8.0% |
| 1958 | 3,844 Degree days | +8.2% |
| 1959 | 3,921 Degree days | +2.0% |
| 1960 | 3,586 Degree days | -8.5% |
| 1961 | 3,724 Degree days | +3.8% |
| 1962 | 3,970 Degree days | +6.6% |
| 1963 | 4,008 Degree days | +1.0% |
| 1964 | 3,672 Degree days | -8.4% |
| 1965 | 3,882 Degree days | +5.7% |
| 1966 | 3,571 Degree days | -8.0% |
| 1967 | 3,837 Degree days | +7.5% |
| 1968 | 3,890 Degree days | +1.4% |
| 1969 | 3,901 Degree days | +0.3% |
| 1970 | 4,038 Degree days | +3.5% |
| 1971 | 3,979 Degree days | -1.5% |
| 1972 | 4,221 Degree days | +6.1% |
| 1973 | 3,431 Degree days | -18.7% |
| 1974 | 3,877 Degree days | +13.0% |
| 1975 | 3,669 Degree days | -5.4% |
| 1976 | 4,073 Degree days | +11.0% |
| 1977 | 3,640 Degree days | -10.6% |
| 1978 | 4,054 Degree days | +11.4% |
| 1979 | 3,549 Degree days | -12.5% |
| 1980 | 4,018 Degree days | +13.2% |
| 1981 | 3,594 Degree days | -10.5% |
| 1982 | 3,716 Degree days | +3.4% |
| 1983 | 3,591 Degree days | -3.3% |
| 1984 | 3,627 Degree days | +1.0% |
| 1985 | 3,786 Degree days | +4.4% |
| 1986 | 3,667 Degree days | -3.1% |
| 1987 | 3,588 Degree days | -2.2% |
| 1988 | 3,611 Degree days | +0.7% |
| 1989 | 4,038 Degree days | +11.8% |
| 1990 | 3,283 Degree days | -18.7% |
| 1991 | 3,405 Degree days | +3.7% |
| 1992 | 3,871 Degree days | +13.7% |
| 1993 | 3,925 Degree days | +1.4% |
| 1994 | 3,836 Degree days | -2.3% |
| 1995 | 3,678 Degree days | -4.1% |
| 1996 | 3,721 Degree days | +1.2% |
| 1997 | 3,883 Degree days | +4.4% |
| 1998 | 3,121 Degree days | -19.6% |
| 1999 | 3,391 Degree days | +8.7% |
| 2000 | 3,710 Degree days | +9.4% |
| 2001 | 3,362 Degree days | -9.4% |
| 2002 | 3,490 Degree days | +3.8% |
| 2003 | 3,894 Degree days | +11.6% |
| 2004 | 3,746 Degree days | -3.8% |
| 2005 | 3,614 Degree days | -3.5% |
| 2006 | 3,200 Degree days | -11.5% |
| 2007 | 3,707 Degree days | +15.9% |
| 2008 | 3,597 Degree days | -3.0% |
| 2009 | 3,686 Degree days | +2.5% |
| 2010 | 3,195 Degree days | -13.3% |
| 2011 | 3,384 Degree days | +5.9% |
| 2012 | 3,214 Degree days | -5.0% |
| 2013 | 3,577 Degree days | +11.3% |
| 2014 | 3,698 Degree days | +3.4% |
| 2015 | 3,662 Degree days | -1.0% |
| 2016 | 3,421 Degree days | -6.6% |
| 2017 | 3,399 Degree days | -0.7% |
| 2018 | 3,686 Degree days | +8.5% |
| 2019 | 3,756 Degree days | +1.9% |
| 2020 | 3,291 Degree days | -12.4% |
| 2021 | 3,241 Degree days | -1.5% |
| 2022 | 3,440 Degree days | +6.1% |
| 2023 | 3,256 Degree days | -5.3% |
| 2024 | 3,109 Degree days | -4.5% |
| 2025 | 3,597 Degree days | +15.7% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1950s | 3,724 Degree days | 3,247 Degree days | 3,921 Degree days | 10 |
| 1960s | 3,804 Degree days | 3,571 Degree days | 4,008 Degree days | 10 |
| 1970s | 3,853 Degree days | 3,431 Degree days | 4,221 Degree days | 10 |
| 1980s | 3,724 Degree days | 3,588 Degree days | 4,038 Degree days | 10 |
| 1990s | 3,611 Degree days | 3,121 Degree days | 3,925 Degree days | 10 |
| 2000s | 3,601 Degree days | 3,200 Degree days | 3,894 Degree days | 10 |
| 2010s | 3,499 Degree days | 3,195 Degree days | 3,756 Degree days | 10 |
| 2020s | 3,322 Degree days | 3,109 Degree days | 3,597 Degree days | 6 |
More reference data data for Montreal
- Cooling and heating degree days - Cities and FUAs — Cooling degree 98.88 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs — Change in cooling -4.63 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs — Change in heating -20.89 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs — Change in heating 95.89 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs, annual growth rate 15.69 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs — Change in cooling -112.49 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs — Cooling degree -29.68 % change on previous year (2025)
- Precipitation - Cities and FUAs — Extreme precipitation days 13.57 Days per year (2024)
- Precipitation - Cities and FUAs — Change in extreme precipitation 3.11 Days per year (2024)
- Dependency ratio - Cities and FUAs 27.5 Percentage of population aged 15-64 years (2021)
Frequently asked questions
- What is cooling and heating degree days - cities and fuas in Montreal?
- Cooling and heating degree days - cities and fuas in Montreal was 3,597 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 Montreal?
- The highest recorded value was 4,221 Degree days in 1972.
- What is the lowest cooling and heating degree days - cities and fuas recorded in Montreal?
- The lowest recorded value was 3,109 Degree days in 2024.
- How does Montreal rank for cooling and heating degree days - cities and fuas?
- Montreal ranks 26th out of 1314 regions with data for 2025.
- Is cooling and heating degree days - cities and fuas rising or falling in Montreal?
- Over the last ten years it is down 1.8%. The long-run trend across the full record is falling.
- Where does this Montreal 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