Environment Canada - Temperature and Precipitation

Departure from 1961-1990 normal precipitation of geographic area, category

Departure from 1961-1990 normal precipitation refers to the percentage difference between the annual or seasonal mean precipitation observed in a geographic area in a specified period as compared to the annual or seasonal mean precipitation observed in that area in the period 1961 to 1990.

Geographic area refers to areas whose boundaries are specifically delimited in accordance with well-defined concepts and which, in total, cover the entire landmass of Canada. It excludes Canadian territorial enclaves abroad.

The data for this variable are reported using the following classifications and/or lists:

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