Table 6. --Average^ maximum and minimum soil surface ternperatures 

 in the shade at the station on the southwest exposure 

 at the 7,100-foot elevation 



Year 



May 



June 



July 



■ Aug. 



Sept . [ 



Oct. 











°F. 







1964 Max. 



66 



65 



82 



79 



73 



70 



Min . 



38 



43 



47 



45 



38 



33 



196 S Max. 



54 



62 



70 



72 



S3 



62 



Min. 



34 



41 



46 



46 



36 



36 



1966 Max. 



63 



64 



80 



81 



76 



62 



Min . 



36 



39 



46 



43 



42 



30 



1967 Max. 



63 



62 



74 



83 



75 



53 



Min. 



35 



40 



47 



45 



41 



32 



1968 Max. 



55 



62 



78 



71 



65 



55 



Min. 



31 



39 



43 



42 



37 



30 



5-year average: 















Max. 



60 



63 



77 



77 



68 



60 



Min. 



35 



40 



46 



44 



39 



32 



^Standard deviations averaged 10° F. for maximum and 6° F. for 

 minimum monthly temperatures. 



Table 7 . --Average^ maximum and minimum temperatures of an 



unshaded soil surface at the station on the south- 

 west exposure at the 7,100-foot elevation 



Year 



May 



June 



July 



'. Aug. \ 



' Sept . ' 



Oct. 









O 



F. ■ 







1964 Max. 



102 



93 



131 



114 



104 



88 



Min. 



31 



38 



38 



36 



32 



26 



1965 Max. 



68 



95 



115 



112 



66 



80 



Min . 



30 



34 



37 



37 



30 



29 



1966 Max. 



88 



106 



132 



121 



106 



68 



Min. 



30 



31 



36 



33 



33 



25 



1967 Max. 



83 



88 



127 



141 



116 



67 



Min. 



31 



35 



39 



35 



33 



27 



1968 Max. 



80 



89 



131 



107 



93 



71 



Min . 



28 



55 



35 



35 



35 



27 



5-year average: 















Max. 



84 



94 



127 



119 



97 



75 



Min. 



30 



35 



37 



35 



33 



27 



^Standard deviations 



averaged 20° 



F. for 



maximum 



and 7° F. 



for 



minimum monthly temperatures. 



