CLIMATE OF SAN FRANCISCO Running Rainfall Normals

	Running Average
ending Year	30 Yr	10 Yr
1860		22.24
1870		25.09
1880	23.88	24.32
1890	24.67	24.60
1900	22.81	19.51
1910	21.61	20.72
1920	20.35	20.82
1930	20.39	19.63
1940	20.31	20.48
1950	20.50	21.40
1960	20.79	20.47
1970	20.66	20.09
1980	19.86	19.01
1990	20.52	22.46
2000	22.28	25.38
2010	23.87	23.76