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Use the form below to download data. To get access to entire datasets, please contact us.

Variable data can be measured directly in the field (e.g., at a weather station) or calculated by climate models. Here we provide access to the CMIP5 (CanDCS-U5) and CMIP6 (CanDCS-M6) climate model datasets. To download the percentile values for any, or all, of the climate variables and indices available on ClimateData.ca, select Annual, Monthly or Seasonal frequencies. To download the daily downscaled data for minimum and maximum temperature and precipitation for each of the climate models in the CMIP5 or CMIP6 ensembles, select Daily frequency.

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Note: Issue with St. Lawrence River CMIP6 Relative Sea Level Change
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Note: This data requires processing. All data will be delivered via an email notification once the processing is complete.

Station Data is historical daily observed weather station data from the Meteorological Service of Canada and Environment and Climate Change Canada.  Download data by selecting stations from the drop-down list, or click one of the clusters on the map below to see which stations are available for download in that area. Click on one, or multiple stations, to select for download.

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For more information regarding the daily data: Technical documentation: Daily Data

For further technical details: Technical Documentation Digital Archive of Canadian Climatological Data

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Hourly data for some stations and variables can be found on the Government of Canada Historical Climate Data website.
More station data from British Columbia can be found on the Pacific Climate Impacts Consortium website.

Intensity Duration Frequency (IDF) curves relate short-duration rainfall intensity with its frequency of occurrence. Access historical and climate change-scaled IDF data produced by Environment and Climate Change Canada either by selecting the station from the drop-down list or by clicking on one of the points on the map below.

Current version: 3.30 (2022-10-31)

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The Future Building Design Value Summaries are location-based summaries of the building design values developed by  Environment and Climate Change Canada as part of the Climate-Resilient Buildings and Core Public Infrastructure (CRBCPI) project.

The values are obtained from the Pacific Climate Impacts Consortium (PCIC)’s Design Value Explorer and are summarized into a table alongside relevant supporting guidance and information for every location in the National Building Code of Canada (NBCC, 2015).

Historical values are from the NBCC 2015, Table C-2* while the future values are derived from regional climate model simulations (CanESM2-CanRCM4) and are presented for two levels of global warming 1.5°C and 3°C above the 1986-2016 baseline period.

These summaries are tailored to users who would consult the NBCC as part of their work, for climate-related design and planning needs.

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This future-looking information comes with an associated uncertainty, as fully described for each design value element in the CRBCPI.

In brief, Tier 1 variables are those for which there is generally high or very high confidence in the future projections for a given level of global warming. These variables reflect the well-understood thermal response of the climate to external radiative forcing of the Earth system.

  • heating degree days
  • hourly design temperatures (January 2.5% dry bulb, January 1% dry bulb, July 97.5% dry bulb, and July 97.5% wet bulb)

Tier 2 variables are those for which there is generally medium confidence in the future projections for a given level of global warming.

  • annual total precipitation and annual total rainfall
  • annual maximum 1-day rain (50-yr return period)
  • annual maximum 15-min rainfall (10-yr return period)

Tier 3 variables are those for which there is low or very low confidence in the future projections for a given level of global warming.

  • annual total precipitation and annual total rainfall
  • annual maximum 1-day rain (50-yr return period)
  • annual maximum 15-min rainfall (10-yr return period)

Additional guidance on the use of the Design Value Explorer and the associated data can be found in the Learning Zone and under the ‘About’ tab in the tool on PCIC’s website.

*Historical values are derived from records prior to 2008 for most variables. At two locations (Pine Falls, MB and Boiestown, NB), historical values were provided by PCIC as these locations had problematic or missing data.

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Adjusted and Homogenized Canadian Climate Data (AHCCD) consists of weather station datasets (temperature and precipitation only) and has been developed by Environment and Climate Change Canada for use in climate research, including climate change studies. The station records in AHCCD have been adjusted using statistical techniques to detect and remove discrepancies in long-term data records caused by non-climatic factors (e.g., changes in instrumentation, observing procedures, and weather station location or site exposure). Longer time series were sometimes created by combining data from nearby stations. Click on one of the clusters below to download AHCCD available for that region.

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The data provided here is daily data. Monthly, Annual and Seasonal data are available via the CCCS Climate Data Extraction Tool

For more information regarding AHCCD Temperature: AHCCD Temperature Documentation

For more information regarding AHCCD Precipitation: AHCCD Precipitation Documentation

For a list of temperature stations: Temperature Station List

For a list of precipitation stations: Precipitation Station list

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Climate Normals describe the average climate conditions of a particular location over a 30-year period.

At the end of each decade, Environment and Climate Change Canada calculates a new set of climate normals using station observations from that decade. All member countries of the World Meteorological Organisation calculate climate normals. As they describe the most recent average climate conditions for a location, they are often used to put extreme events into context.

The climate normals offered here are based on Canadian climate stations with at least 15 years of data available during the current 30-year normal period.

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Additional Climate Normals variables are available from the Canadian Centre for Climate Services and the Government of Canada Historical Climate Data websites.