THE CLIMATE OF WESTERN CANADA 19 



From the figures in table I. a number of very im- 

 portant observations may be made. Among these are : 



(1) From 50 to 60 per cent, of the total precipitation 

 falls in the four "growing" months, May, June, July 

 and August, In the districts of heaviest precipitation 

 this is nearly as much as is received in the same period 

 in Ontario cr in the midland counties of England. 



Fig. 10. — Average Depth of Snowfall in Western Canada. 

 — From Meteorological Service Reports. , 



(2) June and early July is the rainy season. This fact 

 is of considerabale importance in relation to the conserva- 

 tion of moisture by fallowing. It is the chief factor that 

 determines the best time to plow the fallow and the 

 character of the other necessary work that should be 

 done on it, 



(3) The spring and autumn seasons are usually quite 

 dry. The former suggests the necessity of having the 



