Table 6.— Coltunbia River at Vancouver, Washington 

 Monthly temperatures °F., 19hl-19Sh, at 10 ft. depth. 

 Data from Elmer Fisher, U. S. Weather Bureau, Portland, Oregon 



Tear Jan. Feb. Mar. Apr. 



May 



Juna July Aug. Sept. Oct. Nov. Dec. 



19la 



~ $3.8 



19h2 3h.h UO.O U3.5 51.3 



19U3 33.3 38.U li2.3 50.0 



19hh 37.8 Uo.7 U3.8 18.5 



19li5 U0.9 la.l U3.U 19.1 



19U6 liO.O 38 .li li3.8 U9.9 



19U7 3U.1 38.0 li3.1 U9.7 



19U8 38.8 38.6 U3.5 Uh,f> 



19k9 32.U 3U.U U2.5 U9.8 



1950 3U.0 35.0 U2.6 liT.O 



1951 39.3 37.8 U.O U9.3 



1952 35.0 39.6 i;2.0 5o 



1953 li3.0 U3.0 hh.f> 50 

 1951; 39 39 U3.5 55 



Avg. 37.1 38.8 li2.7 U9.5 53.9 58.1 65.2 67.9 . 6U.7 57.2 U8.0 a.7 



hS 



