National Climate Data and Information Archive

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The National Climate Data and Information Archive, hosted by Environment Canada, provides practitioners with historical climate data that can be used to determine a baseline and be used in planning, design and implementation activities. The services provided include historical climate data (hourly, daily or monthly for stations across Canada), historical radar images from 31 stations across Canada, Canadian climate normals (averages and extremes for nearly 1500 locations in Canada), Engineering Climate Datasets (IDF curves, CWEEDS -Weather Energy and Engineering Datasets, CWEC- Canadian Weather year for Energy Calculation), and monthly climate summaries of averages and extremes across the country. The site also provides links to other websites that host useful Data Access Tools, Cartographic Tools and Maps, and Climate Information/Summaries.