AVERAGE ANNUAL PRECIPITATION. 



The above shows that in the mountainous sections in western and central 

 .Montana the average annual precipitation is greater than in the eastern, northern 

 and other plains sections of the state. 



PERCENTAGE OF ANNUAL PRECIPITATION BETWEEN APRIL 1ST AND 



SEPTEMBER 30TH. 



K_, --/ 



1 



This map shows that in the plains section of the state the precipication is 

 greater during the growing season than it is in the mountainous section. 



