Air temperature, hot days, tropical nights and icing days - Cities in Toronto
Toronto: Air temperature, hot days, tropical nights and icing days - Cities was 1.55 Degrees celsius in 2025. ◆ Volatile
Air temperature, hot days, tropical nights and icing days - Cities in Toronto, 1981–2025
Source: Organisation for Economic Co-operation and Development. Measured in Degrees celsius.
Analysis
The most recent figure for air temperature, hot days, tropical nights and icing days - cities in Toronto is 1.55 Degrees celsius, measured in 2025.
That represents a change of down 24.6% on the previous year and up 724.2% over ten years.
Over the whole period, air temperature, hot days, tropical nights and icing days - cities in Toronto peaked at 2.06 Degrees celsius in 2024 and was at its lowest, -1.3 Degrees celsius, in 2014.
That places Toronto 458th out of 1314 groups with data for 2025, putting it in the middle of the range.
The series is highly variable year to year, so single readings are best treated with caution.
Air temperature, hot days, tropical nights and icing days - Cities in Toronto, year by year
| Year | Degrees celsius | Change |
|---|---|---|
| 1981 | -0.6643 Degrees celsius | — |
| 1982 | -0.8222 Degrees celsius | +23.8% |
| 1983 | 0.3384 Degrees celsius | -141.2% |
| 1984 | -0.4016 Degrees celsius | -218.7% |
| 1985 | -0.404 Degrees celsius | +0.6% |
| 1986 | -0.2561 Degrees celsius | -36.6% |
| 1987 | 0.8001 Degrees celsius | -412.5% |
| 1988 | 0.0737 Degrees celsius | -90.8% |
| 1989 | -0.9402 Degrees celsius | -1376.2% |
| 1990 | 0.6907 Degrees celsius | -173.5% |
| 1991 | 1.11 Degrees celsius | +60.2% |
| 1992 | -0.8447 Degrees celsius | -176.3% |
| 1993 | -0.5561 Degrees celsius | -34.2% |
| 1994 | -0.8016 Degrees celsius | +44.1% |
| 1995 | -0.2474 Degrees celsius | -69.1% |
| 1996 | -1.04 Degrees celsius | +320.1% |
| 1997 | -0.4756 Degrees celsius | -54.2% |
| 1998 | 1.84 Degrees celsius | -487.8% |
| 1999 | 0.9562 Degrees celsius | -48.2% |
| 2000 | -0.2 Degrees celsius | -120.9% |
| 2001 | 0.821 Degrees celsius | -510.5% |
| 2002 | 0.9275 Degrees celsius | +13.0% |
| 2003 | -1.01 Degrees celsius | -209.3% |
| 2004 | -0.5254 Degrees celsius | -48.2% |
| 2005 | 0.2807 Degrees celsius | -153.4% |
| 2006 | 0.9952 Degrees celsius | +254.5% |
| 2007 | 0.3302 Degrees celsius | -66.8% |
| 2008 | -0.2812 Degrees celsius | -185.2% |
| 2009 | -0.5735 Degrees celsius | +104.0% |
| 2010 | 0.8827 Degrees celsius | -253.9% |
| 2011 | 0.4174 Degrees celsius | -52.7% |
| 2012 | 1.96 Degrees celsius | +370.4% |
| 2013 | -0.2406 Degrees celsius | -112.3% |
| 2014 | -1.3 Degrees celsius | +438.6% |
| 2015 | -0.2488 Degrees celsius | -80.8% |
| 2016 | 1.33 Degrees celsius | -636.0% |
| 2017 | 0.7089 Degrees celsius | -46.8% |
| 2018 | 0.5016 Degrees celsius | -29.2% |
| 2019 | -0.2826 Degrees celsius | -156.3% |
| 2020 | 1.22 Degrees celsius | -530.2% |
| 2021 | 1.42 Degrees celsius | +17.1% |
| 2022 | 0.3987 Degrees celsius | -72.0% |
| 2023 | 1.42 Degrees celsius | +257.3% |
| 2024 | 2.06 Degrees celsius | +44.5% |
| 2025 | 1.55 Degrees celsius | -24.6% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1980s | -0.2529 Degrees celsius | -0.9402 Degrees celsius | 0.8001 Degrees celsius | 9 |
| 1990s | 0.0633 Degrees celsius | -1.04 Degrees celsius | 1.84 Degrees celsius | 10 |
| 2000s | 0.0761 Degrees celsius | -1.01 Degrees celsius | 0.9952 Degrees celsius | 10 |
| 2010s | 0.3739 Degrees celsius | -1.3 Degrees celsius | 1.96 Degrees celsius | 10 |
| 2020s | 1.35 Degrees celsius | 0.3987 Degrees celsius | 2.06 Degrees celsius | 6 |
More climate change data for Toronto
- Air temperature, hot days, tropical nights and icing days - Cities 9.57 Degrees celsius (2025)
- Climate projections by scenario, 2030–2060 – Cities and FUAs 10.48 Degrees celsius (2060)
- Climate projections by scenario, 2030–2060 – Cities and FUAs 2.16 Degrees celsius (2060)
- Greenhouse gas emissions - Cities and FUAs — GHG emissions from 0.09 Tonnes of CO2-equivalent (2024)
- Greenhouse gas emissions - Cities and FUAs — GHG emissions from 10.21 Tonnes of CO2-equivalent (2024)
- Greenhouse gas emissions - Cities and FUAs — GHG emissions from 29.4 Tonnes of CO2-equivalent (2024)
- Greenhouse gas emissions - Cities and FUAs — GHG emissions from 28.99 Tonnes of CO2-equivalent (2024)
- Greenhouse gas emissions - Cities and FUAs — GHG emissions from power 3.08 Tonnes of CO2-equivalent (2024)
- Greenhouse gas emissions - Cities and FUAs — GHG emissions from road 4.44 Tonnes of CO2-equivalent (2024)
- Greenhouse gas emissions - Cities and FUAs — GHG emissions total 50.49 Tonnes of CO2-equivalent (2024)
Frequently asked questions
- What is air temperature, hot days, tropical nights and icing days - cities in Toronto?
- Air temperature, hot days, tropical nights and icing days - cities in Toronto was 1.55 Degrees celsius in 2025, according to Organisation for Economic Co-operation and Development.
- What is the highest air temperature, hot days, tropical nights and icing days - cities recorded in Toronto?
- The highest recorded value was 2.06 Degrees celsius in 2024.
- What is the lowest air temperature, hot days, tropical nights and icing days - cities recorded in Toronto?
- The lowest recorded value was -1.3 Degrees celsius in 2014.
- How does Toronto rank for air temperature, hot days, tropical nights and icing days - cities?
- Toronto ranks 458th out of 1314 groups with data for 2025.
- Is air temperature, hot days, tropical nights and icing days - cities rising or falling in Toronto?
- Over the last ten years it is up 724.2%. The long-run trend across the full record is volatile.
- Where does this Toronto data come from?
- The figures come from Organisation for Economic Co-operation and Development, published as part of Air temperature, hot days, tropical nights and icing days - Cities and FUAs — Change in air temperature at 2 meters from 1981–2010 period. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 45 observations, free to reuse under OECD Terms and Conditions (attribution required).
About this data
This dataset provides indicators of air temperature, hot days, tropical nights and icing days. Data sources and methodology Indicators are estimated using ERA5-Land data. Air temperature indicators correspond to the average annual air temperature at a height of 2 meters. Hot days correspond to the number of days when the maximum temperature exceeds 35°C. Tropical nights correspond to the days when the minimum temperature is above 20°C, and icing days to the number of days when the maximum temperature is below 0°C. 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. 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 (Air temperature, hot days, tropical nights and icing days - 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