Natural Resources Canada
www.nrcan-rncan.gc.ca
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Long term mean climate grids for Canada and United States
Maps are now available for the 1901-1930, 1931-1960, 1961-1990 and 1971-2000 periods. Select the year of interest to map.
A standard set of bioclimatic parameters has been produced from the three
primary surfaces and are available for 1971/2000. See "Spatial models of Canada- and North America-wide 1971/2000 minimum and maximum temperature, total precipitation and
derived bioclimatic variables".
Information about climate variables: