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  • Federal

    Projected relative change in mean precipitation

    This series includes maps of projected change in mean precipitation based on CMIP5 multi-model ensemble results for RCP2.6, RCP4.5 and RCP8.5, expressed as a percentage (%) of mean precipitation in the reference period. The median projected change across the ensemble of CMIP5 climate models is...
    Organization:
    Environment and Climate Change Canada
    Resource Formats:
  • Federal

    Projected change in mean temperature

    This series includes maps of projected average change in mean temperature (°C) based on CMIP5 multi-model ensemble results for RCP2.6, RCP4.5 and RCP8.5 (based on the 50th percentile of the distribution of the CMIP5 ensemble). Maps are provided for three time periods: 2016-2035, 2046-2065 and...
    Organization:
    Environment and Climate Change Canada
    Resource Formats:
  • Federal

    Canadian National Tornado Database: Verified Events (1980-2009) - Public

    A database of verified tornado occurrences across Canada has been created covering the 30-year period from 1980 to 2009. The data are stored in a Microsoft Excel spreadsheet, including fields for date, time, location, Fujita Rating (intensity), path information, fatalities, injuries, and damage...
    Organization:
    Environment and Climate Change Canada
    Resource Formats:
    • PNG
    • KML
    • XLS
    • PDF
    • HTML
  • Federal

    Adjusted and Homogenized Canadian Climate Data (AHCCD)

    The data consist of monthly, seasonal and annual means of homogenized daily maximum, minimum and mean surface air temperatures for more than 330 locations in Canada; monthly, seasonal and annual totals of adjusted daily rainfall, snowfall and total precipitation for more than 460 locations;...
    Organization:
    Environment and Climate Change Canada
    Resource Formats:
    • HTML
    • WMS
    • WFS
    • PDF
  • Federal

    Climate Normals 1981-2010

    Climate Normals and Averages are used to summarize or describe the average climatic conditions of a particular location. At the completion of each decade, Environment and Climate Change Canada updates its Climate Normals for as many locations and as many climatic characteristics as possible. The...
    Organization:
    Environment and Climate Change Canada
    Resource Formats:
    • CSV
    • HTML
    • WFS
  • Federal

    Wet Deposition Maps

    Patterns of wet deposition of the nitrate/sulfate/ammonium ion across eastern Canada and the United States are based on measurements of precipitation depth and nitrate/sulfate/ammonium concentrations in precipitation samples. These measurements were collected and quality controlled by their...
    Organization:
    Environment and Climate Change Canada
    Resource Formats:
    • ESRI REST
    • ZIP
    • HTML
    • WMS
  • Federal

    National Air Pollution Surveillance (NAPS) Program

    The National Air Pollution Surveillance (NAPS) program is the main source of ambient air quality data in Canada. The NAPS program, which began in 1969, is now comprised of nearly 260 stations in 150 rural and urban communities reporting to the Canada-Wide Air Quality Database (CWAQD). Managed by...
    Organization:
    Environment and Climate Change Canada
    Resource Formats:
    • HTML
  • Federal

    International comparison of urban air quality – Annual average concentrations...

    The Canadian Environmental Sustainability Indicators (CESI) program provides data and information to track Canada's performance on key environmental sustainability issues. The International comparison of urban air quality indicators compare ambient levels (concentrations) of air pollutants in...
    Organization:
    Environment and Climate Change Canada
    Resource Formats:
    • CSV
    • HTML
  • Federal

    International comparison of urban air quality – Annual average concentrations...

    The Canadian Environmental Sustainability Indicators (CESI) program provides data and information to track Canada's performance on key environmental sustainability issues. The International comparison of urban air quality indicators compare ambient levels (concentrations) of air pollutants in...
    Organization:
    Environment and Climate Change Canada
    Resource Formats:
    • CSV
    • HTML
  • Federal

    Indices based on daily temperature and precipitation

    The data consists of temperature indices based on homogenized daily maximum and minimum temperatures at 338 locations across Canada, and of precipitation indices based on adjusted daily rainfall, daily snowfall and daily precipitation amounts at 463 locations across the country. These indices...
    Organization:
    Environment and Climate Change Canada
    Resource Formats:
    • TXT
You can also access this registry using the API (see API Docs).