Search Records

Contained within the 4th Edition (1974) of the Atlas of Canada is a map that shows the area covered by permafrost across Canada. Permafrost is a term used to describe the thermal condition of earth materials, such as soil and rock, when their temperature remains below 0 degrees Celsius...

Contained within the 4th Edition (1974) of the Atlas of Canada is a set of two maps. One shows soil temperature classes and the second shows soil moisture regimes and subclasses. These maps are supplemented by a text giving detailed definitions for both soil temperature classes and soil moisture...

Contained within the 4th Edition (1974) of the Atlas of Canada is a set of two maps. The first map shows the location of weather stations. Stations are denoted as having 25 to 30 year records within the period 1931 to 1960. As well, whether the station collected temperature data, precipitation...

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.

Contained within the 5th Edition (1978 to 1995) of the National Atlas of Canada is a map that shows the annual sum of heating degree days (an indicator of building heating needs). Data for period 1941 to 1970. Companion sheet to Frost-Free Period, Growing Degree-Days, Last Frost in Spring and...

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...

Contained within the 5th Edition (1978 to 1995) of the National Atlas of Canada is a map that shows average date of occurrence of the last frost in spring. Data for period 1941 to 1970. Companion sheet to Frost-Free Period, Heating Degree-Days, Growing Degree-Days and First Frost in Autumn.