CLIMATE OF SAN FRANCISCO
Hot and Cold Spells


HOT SPELLS

90 F OR ABOVE
4 days 6 Sep - 9 Sep 1904 92 100 101 90
4 days 20 Sep - 23 Sep 1939 97 97 97 96
4 days 6 Apr - 9 Apr 1989 91 92 94 91
3 days 20 Jun - 22 Jun 1929 90 95 94
3 days 13 Sep - 15 Sep 1971 99 01 94
3 days 30 Sep - 2 Oct 1980 91 97 96
3 days 5 Oct - 7 Oct 1987 00 02 90

85 F OR ABOVE
8 days 16 Sep - 23 Sep 1939 86 87 88 89 97 97 97 96
5 days 12 Sep - 16 Sep 1909 86 90 89 93 92
5 days 8 Jun - 12 Jun 1877 87 88 86 92 88
5 days 24 Sep - 28 Sep 1970 86 87 92 89 87
5 days 5 Apr - 9 Apr 1989 88 91 92 94 91

80 F OR ABOVE
8 days 16 Sep - 23 Sep 1939 86 87 88 89 97 97 97 96
6 days 2 Oct - 7 Oct 1986 80 84 86 83 80 81
6 days 23 Jun - 28 Jun 1976 88 95 90 87 94 83
6 days 24 Sep - 29 Sep 1970 86 87 92 89 87 87
6 days 11 Oct - 16 Oct 1959 81 83 87 84 82 88
6 days 11 Sep - 16 Sep 1909 82 86 90 89 93 92
6 days 18 Oct - 23 Oct 1887 82 86 87 84 80 80
6 days24 Oct - 29 Oct 1890 82 82 83 86 86 84
6 days 4 Apr - 9 Apr 1989 80 88 91 92 94 91

75 F OR ABOVE
10 days 20 Oct - 29 Oct 1890 76 82 76 77 82 82 83 86 86 84
9 days 14 Jun - 22 Jun 1981 77 88 78 78 79 83 75 85 78
9 days 15 Sep - 23 Sep 1939 79 86 87 88 89 97 97 97 96
8 days 27 Oct - 3 Nov 1930 75 76 78 76 79 79 79 75
7 days Many Occurrences

COLD SPELLS

32 F OR BELOW
4 days 21 Dec - 24 Dec 1990 30 28 31 32
4 days 14 Jan - 17 Jan 1888 29 29 31 32
2 days 9 Dec - 10 Dec 1972 30 32
2 days 8 Jan - 9 Jan 1937 30 32
2 days 20 Jan - 21 Jan 1937 32 30
2 days 11 Dec - 12 Dec 1932 27 31

35 F OR BELOW
6 days 20 Dec - 25 Dec 1990 34 30 28 31 32 35
4 days 8 Dec - 11 Dec 1972 34 30 32 34
4 days 14 Jan - 17 Jan 1888 29 29 31 32
4 days 9 Dec - 12 Dec 1932 34 33 27 31
3 days 6 Feb - 8 Feb 1989 34 31 34 Latest

40 F OR BELOW
10 days 7 Jan - 16 Jan 1929 30 40 38 40 38 36 36 37 40 40
10 days 19 Jan - 28 Jan 1949 40 38 40 39 35 36 38 36 38 39
10 days 7 Dec - 16 Dec 1972 38 34 30 32 34 36 35 35 36 40
9 days 19 Jan - 27 Jan 1937 37 32 30 34 36 30 36 40 38
8 days 20 Dec - 27 Dec 1990 34 30 28 31 32 35 38 39 Latest

45 F OR BELOW
63 days 19 Dec 1948-19 Feb 1949 Too Numerous to List
44 days 15 Dec 1916-27 Jan 1917 Too Numerous to List
39 days 27 Dec 1936- 3 Feb 1937 Too Numerous to List

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