MEAN ANNUAL TEMPERATURE 



This 

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V4q 



map illustrates that except in the mountains and along the Canadian 

 there is little difference in mean annual temperatures in Montana. 



AVERAGE LENGTH OK CROP-G ROWING SEASON IN OAYS. 



; 9V°" " 



§s. 



\ 



> 1 



"fa. '- 



\ V rf/fc*. i — : > -■ 



149 V yf 13d-- 



,63', 



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Pi*™.. 

 ' 115 



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* '114- i 



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/13Qw, 60"f^ ,.'«^ ] > f""*® 3 







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The above may shows a considerable variation in the number of days in a crop- 

 growing season in the different sections of Montana. The most limited season is in 

 the highest mountain regions adjacent to the Canadian border. 



