CLIMATE OF SAN FRANCISCO
Monthly Minimum Temperatures
1914-2009

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
1914 46.77 47.86 51.52 51.87 51.03 50.50 52.00 52.97 54.07 54.84 51.17 44.00 50.72
1915 45.32 47.79 50.77 51.47 52.06 51.80 53.45 53.97 54.93 52.45 49.63 46.74 50.87
1916 42.35 49.52 49.19 49.97 48.71 50.57 52.58 52.19 53.77 50.84 47.17 42.97 49.15
1917 40.84 45.11 44.26 48.00 48.26 49.83 52.16 52.39 55.50 53.61 51.97 48.58 49.21
1918 46.32 45.82 47.45 50.07 48.32 51.40 52.32 54.16 56.83 56.00 49.77 44.42 50.24
1919 44.45 46.32 46.26 49.37 50.32 50.60 51.23 52.39 54.73 51.94 48.20 43.61 49.12
1920 45.52 46.21 46.03 47.83 48.58 52.70 51.61 53.45 53.83 53.19 50.33 46.23 49.63
1921 44.55 46.25 48.68 47.67 48.16 53.53 52.65 53.68 55.50 54.87 51.50 48.10 50.43
1922 40.87 44.68 46.58 46.80 49.87 53.03 54.55 53.58 55.07 54.16 48.30 45.87 49.45
1923 43.06 45.32 48.61 49.67 50.35 51.27 54.23 55.32 56.30 55.26 53.50 45.58 50.71
1924 43.87 50.10 47.97 50.20 52.13 53.10 53.39 53.23 54.47 53.23 50.43 43.23 50.44
1925 45.77 50.00 48.06 50.87 52.71 53.03 54.84 55.03 56.43 55.03 51.37 47.39 51.71
1926 42.45 50.18 53.26 54.80 53.61 52.30 53.58 53.84 53.93 55.29 54.17 46.52 51.99
1927 46.52 49.04 47.84 48.00 50.42 53.20 52.55 53.94 55.50 53.58 52.50 46.71 50.82
1928 45.71 48.79 52.39 50.87 52.52 52.87 52.94 52.55 53.77 52.58 50.13 44.45 50.80
1929 42.39 44.86 47.65 47.37 49.81 55.00 54.90 55.00 54.60 55.19 50.63 49.77 50.60
1930 44.94 49.61 50.94 52.50 50.06 52.43 52.23 55.13 57.03 54.74 50.90 46.35 51.41
1931 46.87 51.18 51.55 50.77 54.19 56.00 54.58 53.26 55.30 52.90 47.80 44.71 51.59
1932 43.97 44.55 49.74 49.27 52.13 52.20 52.94 53.81 55.23 54.94 53.13 41.90 50.32
1933 41.74 44.25 48.87 48.60 49.32 51.00 52.39 53.26 54.20 54.29 51.93 45.97 49.65
1934 46.35 50.04 53.06 51.47 53.77 53.77 53.45 54.48 54.93 54.65 53.10 47.65 52.23
1935 45.65 48.43 46.16 52.17 51.97 52.93 52.55 52.90 54.30 53.81 48.20 47.55 50.55
1936 49.00 48.03 49.94 51.30 54.65 55.77 53.35 53.94 55.03 54.13 50.20 46.48 51.82
1937 38.58 44.46 48.94 48.63 50.32 55.03 54.19 53.23 54.43 56.03 52.83 49.45 50.51
1938 46.16 47.25 48.10 49.53 50.61 51.77 54.39 54.45 54.33 55.16 49.87 48.23 50.82
1939 46.23 45.04 47.16 49.20 51.52 51.63 53.55 55.55 58.23 55.23 51.30 50.13 51.23
1940 48.26 50.97 51.77 51.70 52.06 53.73 55.03 55.19 59.20 55.61 51.43 49.90 52.91
1941 49.42 50.89 52.52 50.63 55.55 54.37 55.39 56.52 57.17 54.42 52.77 49.03 53.22
1942 46.87 48.25 48.81 50.27 51.39 52.37 54.77 54.06 55.03 53.55 50.43 47.35 51.10
1943 46.26 48.96 50.81 50.50 51.45 51.73 54.19 54.10 57.43 55.32 52.53 48.68 51.83
1944 46.81 46.72 48.97 48.67 50.61 52.67 53.10 53.06 53.27 54.61 51.37 49.26 50.76
1945 45.23 49.00 46.52 48.83 51.26 54.30 54.97 53.16 55.87 55.68 51.40 48.45 51.22
1946 45.58 45.11 47.26 49.27 50.90 53.17 54.84 53.26 55.13 53.35 49.10 47.06 50.34
1947 41.19 47.96 50.61 51.63 52.16 54.90 54.35 56.06 54.43 55.65 49.33 45.81 51.18
1948 47.84 45.00 46.52 48.53 50.29 54.30 53.71 54.35 53.03 53.00 49.37 43.42 49.95
1949 38.77 43.32 48.26 48.50 51.29 53.23 52.06 54.10 55.33 51.13 52.53 45.32 49.49
1950 41.81 45.89 47.39 48.53 48.58 51.40 52.45 53.19 55.03 54.32 55.07 49.68 50.28
1951 45.52 46.32 46.19 47.67 51.10 51.40 51.35 52.26 53.97 54.19 50.37 45.29 49.64
1952 43.35 46.31 46.03 49.17 50.00 51.30 53.42 52.13 53.77 52.74 49.20 47.35 49.56
1953 49.35 47.29 46.45 47.07 50.35 51.23 50.58 54.26 57.03 53.71 51.63 48.71 50.64
1954 46.71 47.29 47.10 50.80 49.94 51.67 52.81 53.29 54.87 53.71 51.33 45.42 50.41
1955 42.81 45.82 47.65 47.07 49.58 51.30 51.19 50.61 52.20 52.58 49.67 49.03 49.13
1956 47.45 45.07 46.97 48.33 51.16 51.87 52.26 53.42 55.20 53.35 51.00 45.74 50.15
1957 43.65 49.29 49.06 50.97 52.84 53.97 53.61 53.61 57.50 56.68 51.33 46.71 51.60
1958 47.29 51.75 48.00 50.43 53.77 57.07 54.32 55.84 58.60 54.77 51.37 51.23 52.87
1959 49.23 47.79 50.74 51.37 50.84 52.93 54.26 56.16 56.53 57.39 52.40 49.10 52.39
1960 46.55 48.90 50.35 50.07 51.23 53.53 52.81 52.29 52.93 54.23 50.37 46.42 50.81
1961 44.06 50.32 49.19 50.00 50.84 53.87 53.39 55.97 55.97 54.55 50.13 46.00 51.19
1962 45.00 47.32 47.68 49.87 49.74 51.00 51.39 53.97 53.17 54.84 52.70 48.03 50.39
1963 45.35 52.82 48.35 49.53 52.26 52.40 54.10 53.61 57.43 57.06 51.67 43.35 51.50
1964 45.77 47.59 47.35 47.83 48.42 51.97 53.06 54.48 55.80 55.39 50.40 50.00 50.67
1965 46.87 48.11 49.29 50.27 49.00 51.60 52.90 55.90 55.43 57.35 53.33 43.55 51.13
1966 46.45 46.43 48.00 50.63 49.74 52.80 52.45 52.94 56.90 55.16 51.83 46.71 50.84
1967 47.23 46.86 47.19 46.17 50.90 51.77 53.77 54.45 57.67 58.48 54.87 46.65 51.33
1968 44.19 52.28 51.26 49.57 50.48 53.43 52.94 56.87 56.83 53.94 51.13 45.29 51.52
1969 44.19 46.25 48.16 48.53 51.23 54.53 51.94 52.58 54.97 55.42 52.63 51.16 50.97
1970 50.13 51.25 51.13 47.30 50.55 51.80 52.52 51.87 55.67 52.87 53.27 46.87 51.27
1971 45.81 46.21 47.71 47.67 49.52 51.37 52.19 55.65 57.13 51.03 49.83 44.58 49.89
1972 43.29 48.79 49.23 49.27 49.39 51.50 55.58 55.32 56.10 56.71 50.53 42.77 50.71
1973 45.65 50.04 47.65 50.33 50.48 52.90 52.81 52.32 55.23 53.55 51.20 47.87 50.84
1974 46.42 46.86 48.74 49.23 49.19 52.60 53.90 54.61 54.13 54.94 50.93 46.58 50.68
1975 45.48 48.29 48.35 47.27 50.10 52.17 53.16 53.94 53.90 53.32 49.67 47.58 50.27
1976 46.42 47.62 46.55 48.20 50.19 54.20 54.13 56.81 56.53 55.35 54.30 48.35 51.56
1977 45.10 49.18 47.45 48.97 50.58 52.07 53.10 56.35 56.37 54.16 52.13 50.84 51.36
1978 51.10 50.61 53.90 51.20 52.65 53.10 52.74 54.74 57.40 54.68 50.13 44.52 52.23
1979 46.71 48.00 50.65 51.17 52.94 52.30 54.58 55.65 59.13 57.52 52.80 50.61 52.67
1980 48.81 52.24 50.26 51.00 50.74 52.23 54.10 53.68 55.03 54.23 51.77 48.23 51.86
1981 47.84 50.07 49.84 49.27 50.58 54.90 51.87 53.61 54.27 53.13 53.33 50.06 51.56
1982 43.45 49.61 47.74 49.57 49.61 51.83 52.52 53.84 55.27 55.10 49.57 47.42 50.46
1983 44.45 49.71 50.81 51.10 52.16 53.67 55.42 57.65 57.73 55.35 50.53 48.84 52.29
1984 44.87 45.83 48.61 46.77 50.84 51.40 55.65 55.26 57.53 53.77 50.40 45.32 50.52
1985 43.61 47.43 46.52 51.23 51.32 55.77 56.42 57.42 57.60 54.97 48.90 45.13 51.36
1986 51.45 53.11 53.03 51.13 52.48 56.40 55.48 55.68 56.50 55.26 51.47 46.61 53.22
1987 45.68 49.00 49.61 50.70 52.71 52.90 54.29 56.23 55.77 56.48 51.80 47.39 51.88
1988 47.03 48.31 49.65 51.10 51.03 53.17 55.35 56.68 53.87 54.16 51.60 45.97 51.49
1989 43.94 43.07 49.26 52.47 51.52 53.87 54.10 55.58 55.17 53.45 50.37 45.06 50.65
1990 46.06 44.68 47.77 51.40 51.71 53.87 55.74 58.13 57.80 53.65 49.13 41.23 50.93
1991 45.81 49.61 46.90 49.20 49.68 51.40 54.65 56.87 55.23 54.68 50.80 45.77 50.88
1992 44.26 50.83 52.52 53.90 55.03 55.83 57.87 55.52 56.67 57.61 51.87 45.87 53.15
1993 44.68 47.71 51.97 51.70 54.87 55.93 55.32 58.00 54.77 55.48 49.60 45.00 52.09
1994 45.97 45.82 49.81 50.57 51.81 52.30 53.45 55.03 55.97 53.32 45.63 43.87 50.30
1995 49.90 50.50 49.29 49.93 51.58 53.80 58.00 55.77 56.67 55.19 52.10 50.19 52.74
1996 48.35 50.59 50.71 52.90 53.84 53.43 54.84 55.03 55.20 54.13 51.10 50.29 52.53
1997 47.03 48.64 49.32 50.07 54.16 53.53 54.84 58.03 58.53 54.81 53.50 47.45 52.49
1998 48.84 47.75 49.16 48.50 51.77 53.90 53.94 54.29 55.53 52.90 49.70 43.65 50.83
1999 44.61 45.57 45.65 48.00 47.94 50.17 52.77 55.10 54.13 53.81 51.87 46.52 49.68
2000 47.90 48.90 48.32 50.80 51.68 53.20 52.81 54.16 57.13 53.90 47.63 47.61 51.17
2001 44.90 45.75 48.84 46.27 52.32 52.30 53.58 54.16 53.60 53.87 50.93 47.23 50.31
2002 44.32 47.43 46.84 48.67 49.00 51.27 53.23 53.94 53.57 52.77 51.77 48.81 50.13
2003 49.97 47.46 49.81 48.00 50.90 53.27 52.97 57.32 56.90 54.23 49.40 47.84 51.51
2004 46.55 47.83 51.45 50.20 51.81 52.90 55.32 57.13 56.47 53.03 50.10 47.32 51.68
2005 44.90 50.21 50.48 49.03 53.58 53.43 55.13 53.97 53.57 52.90 52.60 49.29 51.59
2006 47.19 46.96 45.48 49.37 50.77 53.53 54.65 54.45 52.60 53.32 50.77 46.16 50.44
2007 43.35 47.32 48.57 48.60 50.65 51.80 55.19 55.71 56.97 53.84 50.70 45.61 50.69
2008 45.10 46.69 47.65 47.57 50.74 51.47 54.61 55.13 55.67 55.00 53.20 45.35 50.68
2009 47.29 47.30 48.03 48.67 50.65 54.50 53.23 55.45 55.77 54.76 50.72 45.29 51.49
Max 51.45 53.11 53.90 54.80 55.55 57.07 58.00 58.13 59.20 58.48 55.07 51.23 53.22
Min 38.58 43.07 44.26 46.17 47.94 49.83 50.58 50.61 52.20 50.84 45.63 41.23 49.12
Mean 45.62 47.91 48.86 49.68 51.12 52.87 53.67 54.54 55.55 54.41 51.05 46.82 51.01

 

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