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Contained within the 4th Edition (1974) of the Atlas of Canada is a set of three maps showing the length of the growing season, the start of the growing season and the end of the growing season for the fertile regions. A fourth map shows the average length in days of the frost-free period for the...

Contained within the 4th Edition (1974) of the Atlas of Canada is a collection of five maps. Two maps show, for fertile regions, the average date of the last frost in spring and the average date of the first frost in autumn. The three remaining maps show the median depth of snow cover at a scale...

Contained within the 4th Edition (1974) of the Atlas of Canada is a collection of six maps. Each map shows the median depth of snow for December 31st, January 31st, February 28th, March 31st, April 30th and May 31st respectively.

Contained within the 4th Edition (1974) of the Atlas of Canada is a map that shows the average annual number of days with precipitation. The main map is accompanied by a supplementary map at a scale of 1:40 000 000, outlining precipitation regions. As well, climatic graphs for selected stations...

Contained within the 4th Edition (1974) of the Atlas of Canada is a collection of six maps. Each map shows the average monthly precipitation for April, May, June, July, August and September.

Contained within the 4th Edition (1974) of the Atlas of Canada is a set of two maps. One map shows the average precipitation for April to September. The second shows the average precipitation for October to March.

Contained within the 4th Edition (1974) of the Atlas of Canada is a set of six maps showing the average daily minimum temperature and average daily maximum temperature for December, January and February.

Contained within the 4th Edition (1974) of the Atlas of Canada is a set of six maps showing the average daily minimum temperature and average daily maximum temperature for March, April and May.

Contained within the 4th Edition (1974) of the Atlas of Canada is a set of six maps showing the average daily minimum temperature and average daily maximum temperature for June, July and August.

Contained within the 4th Edition (1974) of the Atlas of Canada is a set of six maps showing the average daily minimum temperature and average daily maximum temperature for September, October and November.