374 



SMITHSONIAN MISCELLANEOUS COLLECTIONS 



VOL. 105 



SAN FRANCISCO, UNITED STATES 



Lat. 37°48' N. Long. 122°26' W. Hb = 155 ft. 



PRESSURE AT STATION LEVEL: COR. TO 0° C. (32° F.) AND TO 



GRAV. AT 45° LAT. 



Means of i(5'' + 17''), 120th meridian W. 



29 inches + 



Date Jan. Feb. Mar. Apr. May June July Aug. Sept. Oct. Nov. Dec. Mean 



1931 .945 



1932 .986 



1933 .882 



1934 1.050 



1935 .902 



1936 .918 



1937 .910 



1938 .951 



1939 .942 



1940 .858 



.836 

 .861 

 1.035 

 .922 

 .978 



.810 

 .894 

 .834 

 .989 

 .878 



Mean .934 .904 



.940 

 .932 

 .920 



.840 

 .823 

 .872 

 .926 

 .864 



.896 



.795 

 .877 

 .827 

 .843 

 .799 



.887 

 .913 

 .887 

 .885 

 .859 



.777 

 .823 

 .891 

 .810 

 .792 



.807 

 .791 

 .827 

 .829 

 .802 



.797 

 .725 

 .813 

 .745 

 .750 



.761 

 .805 

 .739 

 .771 

 .752 



.677 .784 



.766 .707 



.720 .729 



.798 .799 



.772 .723 



.721 .738 



.760 .763 



.800 .779 



.794 .776 



.812 .781 



.857 .815 .766 .762 .758 



.760 



.750 

 .732 

 .738 

 .756 



.709 

 .775 

 .776 

 .752 

 .770 



.752 



.848 

 .855 

 .810 

 .855 



.805 

 .824 

 .834 

 .853 

 .837 



.839 



.884 .874 .828 



.937 .980 .851 



.968 .940 .857 



.928 .989 .866 



.925 .913 .839 



.968 .892 .821 



.902 .904 .839 



.964 .942 .850 



.916 .936 .864 



.940 .762 .826 



.938 .913 



.844 



TEMPERATURE IN DEGREES F. ht = 208 ft. 



Means of 4(daily Max.+daily Min.), corrected to 24 hour.s 



Date Jan. Feb. Mar. Apr. May June July Aug. Sept. Oct. Nov. Dec. Mean 



1931 

 1932 

 1933 

 1934 

 1936 



1936 

 1937 

 1938 

 1939 

 1940 



51.9 

 48.9 

 46.6 

 51.4 

 50.4 



53.4 

 43.2 

 51.0 

 51.6 

 52.2 



56.0 

 50.7 

 50.5 

 54.9 

 53.4 



52.7 

 49.2 

 52.3 

 50.5 



54.7 



58.1 

 56.2 

 54.5 

 59.7 

 51.7 



56.5 

 53.9 

 51.9 

 51.9 

 56.5 



58.0 

 55.0 

 54.5 

 58.0 

 57.7 



57.9 

 53.5 

 53.9 

 54.8 

 56.8 



60.9 

 57.5 

 54.3 

 59.7 

 57.8 



60.6 

 50.3 

 55.7 

 56.1 

 57.1 



60.8 

 58.0 

 56.4 

 59.8 

 60.1 



60.5 

 60.2 

 56.3 

 56.6 

 57.8 



61.0 

 58.4 

 58.2 

 58.7 

 58.9 



58.1 

 58.0 

 57.5 

 57.7 

 58.9 



59.2 

 59.8 

 58.6 

 59.7 

 58.8 



58.1 

 57.7 

 58.9 

 59.4 

 58.8 



Mean 50.1 62.5 55.1 56.0 57.6 58.6 58.5 68.9 



61.5 

 61.7 

 59.9 

 62.3 

 59.3 



61.7 

 60.1 

 59.9 

 64.9 



63.7 



61.5 



58.4 

 60.8 

 61.0 

 60.4 

 59.6 



60.8 

 62.0 

 60.2 

 61.6 

 60.9 



53.5 

 59.7 

 59.1 

 67.6 

 53.9 



57.1 

 57.3 

 55.9 

 58.3 

 56.1 



49.0 

 47.0 

 50.1 

 52.5 

 52.4 



51.2 

 54.4 

 53.2 

 54.9 

 55.0 



60.6 56.8 52.0 



67.4 

 56.1 

 65.3 



57.9 

 56.2 



57.4 

 65.5 

 66.6 

 66.5 

 57.4 



56.5 



TOTAL PRECIPITATION IN INCHES, hr = 202 ft. 



Mean 4.84 4.55 2.96 0.96 0.50 0.19 0.01 0.03 0.22 0.86 1.47 3.89 20.48 



