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62 bia, with cool summers and mild winters and a result of differences in elevation. Winters between 30 and 60 inches of rainfall annually, are cold, with temperatures below 0° F., and to the tundra climate of the Arctic Archipel- summers are mild, with daytime tempera- ago and the northern part of the Shield, which tures rising occasionally to 80° F. is characterized by long severe winters, short cool summers, and low rainfall. The south- d. Steppe Climate. ern part of the Cordilleran Region has a The plains of southeastern Alberta and mountain climate. Rainfall and temper- southwestern Saskatchewan have a steppe atures vary greatly within the region depend- climate, which is characterized by low rainfall ing chiefly on exposure and elevation. East- and extremes of temperature. Rainfall varies ward, the Interior Plains of southeastern Al- from 10 to 15 inches a year, and snowfall berta and southwestern Saskatchewan have a varies from 20 to 40 inches. More than 50 steppe climate. The rainfall ranges from 10 percent of the rainfall comes during the sum- to 15 inches a year, and temperatures vary mer season, which favors the growth of spring greatly from summer to winter. The St. wheat. The summers are warm and short; Lawrence Lowland, the Maritime Region, and the growing season averages 90 days in the eastern Newfoundland have a humid conti- north and 130 days in the south. The mean nental climate with warm summers and cold July temperature is 60°, but daytime temper- winters. In general, precipitation is moder- atures occasionally rise to 90° F. Winters in ate. The taiga climate, which is character- this area are cold. The mean temperature ized by short cool summers, long severe win- for January is -5° F., and temperatures of ters and less than 20 inches of rainfall an- -40° are frequent. The cold winter is occa- nually, extends eastward from Alaska across sionally interrupted by warm Chinook winds Canada and includes western Newfoundland. that descend from the mountains and may b. Humid Marine Climate of the Pacific raise the temperature 20° to 40° in a few hours. Coast. The coast of British Columbia has a humid The climate of the eastern plains is a transi- marine climate. The rainfall is moderate to tion between the steppe climate on the west heavy, varying from 40 to 60 inches, with the and the humid continental climate on the maximum in summer; snowfall varies from 8 east. Summers are warm, with the mean to 80 inches. Temperatures in this region July temperature varying between 60° and are mild as a result of nearness to the ocean. 70° F., and winters are cold, the mean Janu- Mean winter temperatures average 35° to 40° ary temperature ranging between 0° and 10° F., and mean summer temperatures vary F. Rainfall for this area ranges between 10 between 55° and 65° F. and 20 inches annually. C. Mountain Climate. e. Humid Continental Climate. East of the humid, marine climatic region Southern Canada east of the Interior is the region of mountain climate in the Plains Region has a humid continental cli- southern part of the Cordillera. The striking mate with cold winters and warm summers. differences in temperature and rainfall within This area includes the Maritime Region and the Cordilleran Region are the result of great the St. Lawrence Lowland. The annual rain- variations in elevation and arrangement fall ranges from 40 inches in the vicinity of of surface features. The western slopes of Montreal to 26 inches in southern Ontario. the ,mountains have a heavy rainfall and The hilly areas of New Brunswick and Nova snowfall. The eastern slopes and valleys Scotia receive 45 to 50 inches. Snowfall for the region ranges from 20 to 80 inches. Sum- receive much less moisture and are arid or semi-arid in many areas. Except where mers are warm. For most of the region the mean temperatures of July and August range crops can be irrigated, the land is used from 60° to 70° F. Summers are slightly chiefly for raising cattle and sheep. The warmer in the Lowland than in the Maritime average annual temperatures vary greatly as Region. In the Lowland the mean July tem-

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    "ocrText": "62\nbia, with cool summers and mild winters and\na result of differences in elevation. Winters\nbetween 30 and 60 inches of rainfall annually,\nare cold, with temperatures below 0° F., and\nto the tundra climate of the Arctic Archipel-\nsummers are mild, with daytime tempera-\nago and the northern part of the Shield, which\ntures rising occasionally to 80° F.\nis characterized by long severe winters, short\ncool summers, and low rainfall. The south-\nd. Steppe Climate.\nern part of the Cordilleran Region has a\nThe plains of southeastern Alberta and\nmountain climate. Rainfall and temper-\nsouthwestern Saskatchewan have a steppe\natures vary greatly within the region depend-\nclimate, which is characterized by low rainfall\ning chiefly on exposure and elevation. East-\nand extremes of temperature. Rainfall varies\nward, the Interior Plains of southeastern Al-\nfrom 10 to 15 inches a year, and snowfall\nberta and southwestern Saskatchewan have a\nvaries from 20 to 40 inches. More than 50\nsteppe climate. The rainfall ranges from 10\npercent of the rainfall comes during the sum-\nto 15 inches a year, and temperatures vary\nmer season, which favors the growth of spring\ngreatly from summer to winter. The St.\nwheat. The summers are warm and short;\nLawrence Lowland, the Maritime Region, and\nthe growing season averages 90 days in the\neastern Newfoundland have a humid conti-\nnorth and 130 days in the south. The mean\nnental climate with warm summers and cold\nJuly temperature is 60°, but daytime temper-\nwinters. In general, precipitation is moder-\natures occasionally rise to 90° F. Winters in\nate. The taiga climate, which is character-\nthis area are cold. The mean temperature\nized by short cool summers, long severe win-\nfor January is -5° F., and temperatures of\nters and less than 20 inches of rainfall an-\n-40° are frequent. The cold winter is occa-\nnually, extends eastward from Alaska across\nsionally interrupted by warm Chinook winds\nCanada and includes western Newfoundland.\nthat descend from the mountains and may\nb. Humid Marine Climate of the Pacific\nraise the temperature 20° to 40° in a few\nhours.\nCoast.\nThe coast of British Columbia has a humid\nThe climate of the eastern plains is a transi-\nmarine climate. The rainfall is moderate to\ntion between the steppe climate on the west\nheavy, varying from 40 to 60 inches, with the\nand the humid continental climate on the\nmaximum in summer; snowfall varies from 8\neast. Summers are warm, with the mean\nto 80 inches. Temperatures in this region\nJuly temperature varying between 60° and\nare mild as a result of nearness to the ocean.\n70° F., and winters are cold, the mean Janu-\nMean winter temperatures average 35° to 40°\nary temperature ranging between 0° and 10°\nF., and mean summer temperatures vary\nF. Rainfall for this area ranges between 10\nbetween 55° and 65° F.\nand 20 inches annually.\nC. Mountain Climate.\ne. Humid Continental Climate.\nEast of the humid, marine climatic region\nSouthern Canada east of the Interior\nis the region of mountain climate in the\nPlains Region has a humid continental cli-\nsouthern part of the Cordillera. The striking\nmate with cold winters and warm summers.\ndifferences in temperature and rainfall within\nThis area includes the Maritime Region and\nthe Cordilleran Region are the result of great\nthe St. Lawrence Lowland. The annual rain-\nvariations in elevation and arrangement\nfall ranges from 40 inches in the vicinity of\nof surface features. The western slopes of\nMontreal to 26 inches in southern Ontario.\nthe ,mountains have a heavy rainfall and\nThe hilly areas of New Brunswick and Nova\nsnowfall. The eastern slopes and valleys\nScotia receive 45 to 50 inches. Snowfall for\nthe region ranges from 20 to 80 inches. Sum-\nreceive much less moisture and are arid\nor semi-arid in many areas. Except where\nmers are warm. For most of the region the\nmean temperatures of July and August range\ncrops can be irrigated, the land is used\nfrom 60° to 70° F. Summers are slightly\nchiefly for raising cattle and sheep. The\nwarmer in the Lowland than in the Maritime\naverage annual temperatures vary greatly as\nRegion. In the Lowland the mean July tem-"
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