Homogenized Surface Air Temperature (AHCCD)
The Homogenized Surface Air Temperature data consist of monthly, seasonal and annual means of homogenized daily maximum, minimum and mean surface air temperatures (degrees Celsius) for 338 locations in Canada. Homogenized climate data incorporate adjustments (derived from statistical procedures) to the original station data to account for discontinuities from non-climatic factors, such as instrument changes or station relocation. The time periods of the data vary by location, with the oldest data available from the early 1880s at some stations to the most recent update in 2017. Observations at co-located sites were sometimes joined in order to create longer time series. Data availability over most of the Canadian Arctic is restricted to the mid-1940s to present. The data will continue to be updated every year.
- Publisher - Current Organization Name: Environment and Climate Change Canada
- Licence: Open Government Licence - Canada
Data and Resources
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Adjusted / homogenized climate data ENHTMLEnglish dataset HTML
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Adjusted / homogenized climate data FRHTMLFrench dataset HTML
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AHCCDHTMLEnglish French application HTML
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View Data MartHTMLEnglish dataset HTML
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View Data MartHTMLFrench dataset HTML
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Climate Data ViewerHTMLEnglish application HTML
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Climate Data ViewerHTMLFrench application HTML
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View ECCC Data Mart (English)HTMLEnglish web_service HTML
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View ECCC Data Mart (French)HTMLFrench web_service HTML
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Data Collection MethodologyPDFEnglish guide PDF
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Data Collection MethodologyPDFFrench guide PDF