SAN JON st,

Monthly Extreme Minimum Temperature (Degrees Fahrenheit)

(297867)

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201303
a = 1 day missing, b = 2 days missing, c = 3 days, ..etc..,
z = 26 or more days missing, A = Accumulations present
Long-term means based on columns; thus, the monthly row may not
sum (or average) to the long-term annual value.
MAXIMUM ALLOWABLE NUMBER OF MISSING DAYS : 5
Individual Months not used for annual or monthly statistics if more than 5 days are missing.
Individual Years not used for annual statistics if any month in that year has more than 5 days missing.
YEAR(S) JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANN
1907 ----- z ----- z ----- z ----- z ----- z 43.00 54.00 59.00 43.00 30.00 16.00 7.00 7.00
1908 3.00 4.00 21.00 25.00 29.00 50.00 55.00 e 59.00 34.00 23.00 c 15.00 12.00 3.00
1909 4.00 2.00 -3.00 21.00 22.00 51.00 61.00 58.00 38.00 31.00 19.00 -9.00 -9.00
1910 5.00 -9.00 25.00 26.00 38.00 46.00 58.00 48.00 46.00 26.00 18.00 11.00 -9.00
1911 -14.00 -4.00 14.00 27.00 a 33.00 49.00 56.00 52.00 49.00 22.00 a 5.00 -3.00 -14.00
1912 -4.00 2.00 15.00 25.00 a 36.00 41.00 50.00 a 57.00 39.00 24.00 10.00 -1.00 -4.00
1913 -19.00 a -4.00 11.00 19.00 a 38.00 53.00 a 57.00 a 56.00 36.00 a 21.00 25.00 1.00 -19.00
1914 14.00 a 5.00 18.00 22.00 44.00 55.00 58.00 50.00 a 43.00 25.00 20.00 4.00 a 4.00
1915 -7.00 15.00 14.00 a 27.00 27.00 41.00 53.00 45.00 46.00 30.00 13.00 -1.00 g -7.00
1916 18.00 w 20.00 r 24.00 l 19.00 32.00 e 52.00 b 50.00 a 54.00 f 42.00 d 25.00 c 0.00 ----- z 0.00
1917 8.00 2.00 2.00 a 22.00 22.00 37.00 60.00 50.00 a 36.00 16.00 c ----- z 4.00 k 2.00
1918 -6.00 0.00 c 13.00 24.00 34.00 a 50.00 c 60.00 52.00 g 41.00 c 29.00 c 5.00 b -13.00 b -13.00
1919 -20.00 11.00 a 18.00 b 23.00 d 44.00 b 35.00 b 56.00 53.00 a 44.00 a ----- z 7.00 f ----- z -20.00
1920 -7.00 a 12.00 a 7.00 e 10.00 h 38.00 g 50.00 b 56.00 a 49.00 b 39.00 a 28.00 f 15.00 d 0.00 d -7.00
1921 9.00 b ----- z 15.00 d 21.00 f 38.00 b 41.00 e 55.00 d 56.00 d 40.00 b 27.00 b 18.00 a 2.00 c 2.00
1922 -2.00 a 1.00 e -5.00 h 28.00 f 36.00 g 48.00 a 48.00 b 45.00 a 43.00 a 25.00 g 11.00 b 9.00 -5.00
1923 10.00 d 6.00 a 9.00 29.00 a 40.00 c 53.00 f 52.00 b 49.00 e ----- z 29.00 1.00 a -13.00 -13.00
1924 7.00 e 13.00 c 10.00 a ----- z 33.00 b 44.00 b 54.00 d 56.00 a 36.00 a 23.00 b 20.00 b -11.00 e -11.00
1925 -2.00 d 11.00 b 15.00 a 27.00 b 37.00 c 46.00 c 52.00 e 53.00 b ----- z ----- z 16.00 b ----- z -2.00
1926 7.00 b 14.00 c 8.00 b 24.00 h 39.00 p ----- z ----- z ----- z ----- z ----- z ----- z ----- z 7.00
1927 ----- z 7.00 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z -2.00 a -2.00
1928 ----- z ----- z ----- z ----- z ----- z 44.00 b ----- z ----- z ----- z ----- z ----- z ----- z 44.00
1929 2.00 f ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 0.00 h 0.00
1930 ----- z ----- z ----- z 29.00 b 30.00 e ----- z ----- z ----- z ----- z ----- z ----- z ----- z 29.00
1931 5.00 ----- z ----- z 30.00 33.00 ----- z ----- z ----- z ----- z ----- z 12.00 11.00 5.00
1932 ----- z ----- z ----- z ----- z 44.00 z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 44.00
1933 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1934 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1935 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1936 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1937 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1938 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1939 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1940 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1941 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1942 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 45.00 z ----- z ----- z 45.00
1943 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 12.00 a ----- z 12.00
1944 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1945 ----- z ----- z 22.00 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 22.00
1946 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1947 ----- z ----- z ----- z ----- z ----- z ----- z 63.00 z ----- z 38.00 ----- z ----- z ----- z 38.00
1948 -5.00 b 1.00 -9.00 19.00 c 35.00 51.00 55.00 50.00 35.00 22.00 10.00 11.00 a -9.00
1949 -5.00 8.00 18.00 25.00 38.00 a 48.00 60.00 51.00 45.00 19.00 21.00 4.00 a -5.00
1950 -7.00 12.00 4.00 27.00 35.00 47.00 57.00 49.00 44.00 37.00 7.00 -1.00 -7.00
1951 1.00 -15.00 11.00 20.00 a 41.00 a 44.00 60.00 51.00 a 36.00 31.00 6.00 a 2.00 -15.00
1952 0.00 12.00 10.00 19.00 36.00 53.00 56.00 59.00 a 46.00 a 28.00 -4.00 0.00 -4.00
1953 8.00 a 8.00 a 12.00 a 22.00 30.00 c 61.00 e 55.00 56.00 38.00 29.00 13.00 8.00 b 8.00
1954 6.00 a 10.00 n 11.00 a 32.00 a 25.00 47.00 57.00 54.00 a 44.00 a 16.00 21.00 4.00 4.00
1955 4.00 0.00 5.00 b 22.00 a 38.00 c 40.00 a 57.00 b 48.00 41.00 17.00 9.00 14.00 0.00
1956 5.00 a 0.00 8.00 a 25.00 a 35.00 56.00 58.00 54.00 45.00 29.00 14.00 8.00 0.00
1957 4.00 17.00 13.00 20.00 43.00 45.00 b 56.00 d 58.00 39.00 26.00 -5.00 a 13.00 -5.00
1958 9.00 12.00 11.00 29.00 40.00 45.00 53.00 55.00 a 43.00 31.00 16.00 -1.00 -1.00
1959 -18.00 a 11.00 14.00 26.00 39.00 a 48.00 50.00 53.00 37.00 a 28.00 5.00 a 14.00 -18.00
1960 -15.00 0.00 a 5.00 25.00 30.00 c 46.00 a 55.00 47.00 43.00 a 26.00 a 11.00 d 9.00 b -15.00
1961 8.00 a 10.00 15.00 m 28.00 l 35.00 e 46.00 c 51.00 52.00 34.00 30.00 11.00 -15.00 -15.00
1962 -13.00 3.00 10.00 17.00 30.00 40.00 57.00 55.00 41.00 34.00 7.00 -2.00 -13.00
1963 -33.00 4.00 13.00 32.00 41.00 50.00 60.00 59.00 43.00 37.00 16.00 -7.00 -33.00
1964 -5.00 -5.00 14.00 18.00 30.00 43.00 54.00 51.00 46.00 32.00 17.00 5.00 -5.00
1965 12.00 -1.00 8.00 28.00 31.00 48.00 58.00 58.00 37.00 32.00 15.00 12.00 -1.00
1966 -10.00 9.00 10.00 22.00 33.00 49.00 61.00 53.00 47.00 24.00 19.00 -1.00 -10.00
1967 6.00 10.00 10.00 28.00 28.00 36.00 56.00 53.00 43.00 26.00 22.00 10.00 6.00
1968 6.00 14.00 14.00 28.00 42.00 51.00 59.00 55.00 41.00 33.00 16.00 5.00 5.00
1969 7.00 11.00 13.00 35.00 40.00 48.00 62.00 58.00 48.00 22.00 16.00 -1.00 -1.00
1970 -1.00 15.00 15.00 23.00 a 40.00 41.00 59.00 55.00 32.00 24.00 13.00 14.00 -1.00
1971 -14.00 0.00 8.00 20.00 30.00 49.00 55.00 53.00 37.00 30.00 25.00 15.00 -14.00
1972 -1.00 4.00 20.00 26.00 38.00 52.00 53.00 50.00 38.00 26.00 14.00 0.00 -1.00
1973 4.00 13.00 ----- z 11.00 33.00 46.00 53.00 56.00 35.00 27.00 16.00 6.00 4.00
1974 5.00 7.00 18.00 22.00 38.00 41.00 60.00 52.00 38.00 34.00 15.00 12.00 5.00
1975 0.00 2.00 16.00 22.00 33.00 41.00 a 56.00 50.00 39.00 23.00 13.00 9.00 0.00
1976 3.00 14.00 13.00 34.00 35.00 49.00 57.00 48.00 41.00 26.00 -1.00 10.00 -1.00
1977 0.00 19.00 20.00 23.00 45.00 56.00 61.00 58.00 43.00 32.00 17.00 6.00 0.00
1978 5.00 3.00 15.00 32.00 32.00 50.00 60.00 55.00 45.00 31.00 ----- z -13.00 -13.00
1979 -6.00 15.00 19.00 22.00 29.00 45.00 56.00 56.00 47.00 25.00 12.00 12.00 -6.00
1980 10.00 6.00 9.00 27.00 40.00 55.00 a 63.00 59.00 45.00 a 21.00 b 5.00 20.00 5.00
1981 18.00 -1.00 23.00 29.00 33.00 47.00 60.00 57.00 47.00 32.00 25.00 12.00 -1.00
1982 8.00 -1.00 12.00 28.00 34.00 51.00 56.00 59.00 48.00 32.00 19.00 -3.00 -3.00
1983 8.00 5.00 22.00 21.00 34.00 42.00 54.00 61.00 32.00 37.00 12.00 -4.00 -4.00
1984 -2.00 15.00 18.00 26.00 32.00 52.00 58.00 60.00 34.00 33.00 22.00 14.00 -2.00
1985 2.00 -8.00 22.00 25.00 37.00 45.00 55.00 55.00 34.00 32.00 19.00 8.00 -8.00
1986 15.00 -12.00 25.00 29.00 37.00 53.00 60.00 60.00 42.00 a 28.00 16.00 17.00 -12.00
1987 0.00 11.00 10.00 29.00 40.00 51.00 56.00 53.00 48.00 29.00 15.00 -6.00 -6.00
1988 0.00 1.00 13.00 22.00 33.00 43.00 54.00 50.00 42.00 36.00 15.00 8.00 0.00
1989 11.00 -3.00 8.00 24.00 40.00 46.00 59.00 56.00 40.00 24.00 13.00 -3.00 -3.00
1990 3.00 13.00 20.00 29.00 32.00 49.00 55.00 56.00 51.00 26.00 17.00 -11.00 -11.00
1991 12.00 22.00 21.00 31.00 29.00 53.00 58.00 59.00 39.00 14.00 2.00 16.00 2.00
1992 14.00 19.00 17.00 32.00 40.00 44.00 56.00 50.00 46.00 30.00 16.00 11.00 11.00
1993 10.00 7.00 14.00 30.00 34.00 48.00 62.00 54.00 41.00 11.00 8.00 ----- z 7.00
1994 6.00 7.00 17.00 21.00 35.00 54.00 53.00 59.00 38.00 34.00 16.00 19.00 6.00
1995 14.00 19.00 14.00 22.00 39.00 46.00 50.00 59.00 35.00 33.00 19.00 8.00 8.00
1996 7.00 7.00 7.00 26.00 41.00 54.00 62.00 59.00 36.00 25.00 17.00 2.00 2.00
1997 2.00 15.00 19.00 20.00 34.00 51.00 53.00 56.00 45.00 25.00 18.00 -1.00 -1.00
1998 18.00 18.00 14.00 30.00 42.00 47.00 62.00 57.00 50.00 32.00 26.00 0.00 0.00
1999 8.00 17.00 21.00 28.00 36.00 51.00 55.00 61.00 33.00 31.00 23.00 15.00 8.00
2000 15.00 15.00 19.00 31.00 36.00 56.00 60.00 a 62.00 33.00 a 35.00 a 22.00 15.00 a 15.00
2001 14.00 16.00 22.00 31.00 38.00 b 48.00 62.00 57.00 45.00 a 29.00 b 13.00 16.00 a 13.00
2002 13.00 6.00 6.00 24.00 39.00 55.00 63.00 54.00 46.00 30.00 19.00 6.00 6.00
2003 19.00 7.00 17.00 25.00 36.00 47.00 60.00 58.00 40.00 29.00 14.00 ----- z 7.00
2004 2.00 9.00 29.00 28.00 35.00 g 52.00 55.00 53.00 b 41.00 32.00 13.00 -2.00 -2.00
2005 14.00 21.00 13.00 27.00 32.00 46.00 55.00 55.00 47.00 35.00 16.00 -3.00 -3.00
2006 13.00 6.00 17.00 31.00 46.00 58.00 63.00 58.00 39.00 26.00 17.00 12.00 6.00
2007 1.00 6.00 16.00 23.00 41.00 42.00 57.00 61.00 44.00 30.00 17.00 7.00 1.00
2008 5.00 14.00 23.00 31.00 34.00 52.00 59.00 52.00 47.00 28.00 23.00 10.00 5.00
2009 8.00 17.00 8.00 22.00 42.00 50.00 56.00 56.00 36.00 23.00 19.00 3.00 3.00
2010 2.00 11.00 21.00 28.00 35.00 55.00 60.00 49.00 50.00 28.00 11.00 17.00 2.00
2011 -1.00 -15.00 25.00 a 30.00 29.00 a 54.00 62.00 a 63.00 46.00 29.00 b 20.00 a -5.00 a -15.00
2012 13.00 13.00 22.00 33.00 43.00 54.00 62.00 a 54.00 44.00 28.00 19.00 6.00 6.00
2013 8.00 17.00 a 16.00 31.00 z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 8.00
Period of Record Statistics
MEAN 2.84 7.24 14.18 25.52 35.50 48.08 56.87 54.62 41.30 27.69 14.27 4.70 -2.44
S.D. 9.53 8.12 6.46 4.53 5.05 5.16 3.50 4.10 4.77 5.29 6.51 8.43 8.30
SKEW -1.04 -0.59 -0.56 -0.30 -0.30 -0.19 -0.20 -0.27 -0.09 -0.71 -0.83 -0.41 -0.96
MAX 19.00 22.00 29.00 35.00 46.00 61.00 63.00 63.00 51.00 37.00 26.00 20.00 15.00
MIN -33.00 -15.00 -9.00 11.00 22.00 35.00 48.00 45.00 32.00 11.00 -5.00 -15.00 -33.00
NO YRS 85 83 82 80 82 84 84 82 83 80 83 79 57