TEMPERATURE AND DRY-FARMING 



43 



not far from 45° F. This places most of the dry- 

 farm territory in the class of cold regions, though a 

 small area on the extreme east border may be classed 

 as temperate, and parts of California and Arizona 

 as warm. The range in temperature from the high- 



Fig. 15. Winter in the Great Basin. A good snowfall in sections where 

 the summer precipitation is light generally insures a good crop. 



est in summer to the lowest in winter is considerable, 

 but not widely different from other similar parts of 

 the United States. The range is greatest in the 

 interior mountainous districts, and lowest along 

 the seacoast. The daily range of the highest and 

 lowest temperatures for any one day is generally 

 higher over dry-farm sections than over humid 



