114 



UNIVERSITY OF COLORADO STUDIES 



Irrigation is necessary throughout northwestern Colorado for suc- 

 cessful farming and fruit-raising 



Fig. 5. — Graphic representation of the mean temperature by months at Meeker, 

 Rangely, Boulder and Wray. Meeker and Rangely are west of the continental divide, 

 Boulder and Wray east; all are near the 40th parallel. The greater ranges of temperature 

 will be noted in the cases of Meeker and Rangely. 



Temperature. — Northwestern Colorado as a whole has a severe 

 climate. That is, extremes of temperature, both diurnal and annual, 

 are great. Table I gives temperature conditions at four localities in 



TABLE I 



Station 



Mean 

 Annual 

 Range* 



Boulder 



Wray 



Meeker 



Rangely 



* Degrees F 



38 

 45 

 46 

 54 



