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JPG

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Publisher-reported update

2017-01-26

Contained within the 5th Edition (1978 to 1995) of the National Atlas of Canada is a map that shows the annual sum of normal degree-days above 5 C (an indicator of total heat available for plants in the growing season). Data for period 1941 to 1970. Companion sheet to Frost-Free Period, Heating Degree-Days, Last Frost in Spring and First Frost in Autumn.

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