WALNUT CREEK, e:

Monthly Extreme Minimum Temperature (Degrees Fahrenheit)

(029158)

File last updated on Apr 3, 2013
*** Note *** Provisional Data *** After Year/Month 201301
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
1915 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1916 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1917 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1918 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1919 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1920 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1921 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1922 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1923 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1924 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1925 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1926 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1927 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1928 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1929 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1930 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1931 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1932 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
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 ----- z ----- z ----- z 9999.00
1943 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1944 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1945 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1946 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1947 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1948 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1949 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1950 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1951 ----- z ----- z ----- z 29.00 r 29.00 28.00 40.00 58.00 z 39.00 z 22.00 19.00 1.00 1.00
1952 8.00 11.00 3.00 24.00 27.00 32.00 36.00 45.00 25.00 ----- z 12.00 11.00 3.00
1953 16.00 16.00 a 17.00 10.00 24.00 29.00 48.00 41.00 24.00 22.00 14.00 b 7.00 a 7.00
1954 5.00 a 19.00 10.00 24.00 30.00 31.00 a 50.00 35.00 29.00 20.00 14.00 5.00 5.00
1955 5.00 6.00 12.00 10.00 21.00 28.00 36.00 43.00 26.00 26.00 17.00 9.00 5.00
1956 11.00 1.00 7.00 18.00 28.00 36.00 38.00 36.00 36.00 22.00 9.00 6.00 1.00
1957 11.00 a 2.00 21.00 21.00 28.00 36.00 46.00 33.00 34.00 27.00 9.00 11.00 2.00
1958 9.00 15.00 14.00 14.00 30.00 32.00 39.00 50.00 34.00 21.00 10.00 5.00 5.00
1959 0.00 n 7.00 o 9.00 20.00 19.00 33.00 42.00 43.00 29.00 25.00 14.00 16.00 0.00
1960 0.00 9.00 17.00 19.00 21.00 40.00 43.00 41.00 33.00 22.00 16.00 11.00 0.00
1961 8.00 14.00 14.00 17.00 a 25.00 33.00 44.00 48.00 34.00 17.00 11.00 -1.00 -1.00
1962 -2.00 -10.00 5.00 22.00 23.00 32.00 42.00 40.00 37.00 28.00 18.00 10.00 -10.00
1963 3.00 15.00 11.00 15.00 23.00 31.00 44.00 52.00 39.00 29.00 20.00 11.00 3.00
1964 0.00 8.00 a 10.00 20.00 19.00 32.00 40.00 43.00 35.00 28.00 -4.00 5.00 -4.00
1965 13.00 7.00 9.00 23.00 17.00 32.00 46.00 38.00 28.00 27.00 18.00 1.00 1.00
1966 ----- z 9.00 0.00 21.00 31.00 29.00 42.00 46.00 a 40.00 a 20.00 12.00 -7.00 d -7.00
1967 6.00 8.00 ----- z 9.00 9.00 30.00 52.00 50.00 40.00 26.00 18.00 0.00 b 0.00
1968 1.00 18.00 14.00 18.00 26.00 34.00 41.00 32.00 28.00 18.00 9.00 -21.00 -21.00
1969 0.00 7.00 9.00 16.00 21.00 31.00 38.00 46.00 34.00 13.00 13.00 a 4.00 a 0.00
1970 -5.00 10.00 11.00 10.00 15.00 26.00 34.00 47.00 22.00 14.00 14.00 14.00 -5.00
1971 -15.00 5.00 5.00 12.00 18.00 29.00 40.00 49.00 22.00 8.00 11.00 -2.00 -15.00
1972 6.00 5.00 15.00 19.00 25.00 38.00 45.00 45.00 34.00 26.00 18.00 -3.00 -3.00
1973 8.00 16.00 20.00 20.00 28.00 36.00 37.00 41.00 33.00 a 26.00 11.00 9.00 8.00
1974 8.00 12.00 15.00 23.00 c 23.00 35.00 41.00 40.00 28.00 26.00 12.00 3.00 3.00
1975 5.00 11.00 15.00 17.00 14.00 33.00 40.00 37.00 36.00 19.00 5.00 d 10.00 5.00
1976 6.00 15.00 5.00 19.00 32.00 35.00 42.00 38.00 36.00 20.00 15.00 7.00 5.00
1977 9.00 14.00 6.00 18.00 20.00 35.00 44.00 45.00 34.00 a 29.00 18.00 16.00 6.00
1978 18.00 16.00 23.00 26.00 26.00 36.00 31.00 30.00 30.00 26.00 20.00 -1.00 -1.00
1979 -14.00 0.00 18.00 20.00 26.00 32.00 37.00 37.00 37.00 18.00 14.00 11.00 -14.00
1980 14.00 15.00 20.00 22.00 24.00 29.00 37.00 40.00 34.00 20.00 14.00 15.00 14.00
1981 11.00 10.00 21.00 19.00 28.00 41.00 49.00 50.00 37.00 22.00 10.00 9.00 9.00
1982 2.00 12.00 17.00 21.00 28.00 28.00 37.00 46.00 31.00 21.00 17.00 11.00 2.00
1983 3.00 17.00 22.00 20.00 25.00 30.00 38.00 43.00 42.00 32.00 15.00 14.00 3.00
1984 7.00 11.00 12.00 12.00 27.00 35.00 52.00 50.00 41.00 21.00 17.00 14.00 7.00
1985 11.00 0.00 12.00 25.00 27.00 34.00 45.00 40.00 30.00 29.00 12.00 12.00 0.00
1986 16.00 7.00 22.00 22.00 27.00 40.00 38.00 50.00 30.00 25.00 18.00 14.00 7.00
1987 0.00 5.00 5.00 24.00 28.00 37.00 36.00 41.00 33.00 31.00 15.00 4.00 0.00
1988 12.00 16.00 12.00 22.00 22.00 34.00 43.00 42.00 31.00 31.00 13.00 0.00 0.00
1989 7.00 6.00 21.00 22.00 27.00 35.00 38.00 36.00 30.00 18.00 14.00 4.00 4.00
1990 3.00 4.00 19.00 26.00 30.00 32.00 48.00 39.00 35.00 24.00 13.00 -11.00 -11.00
1991 10.00 14.00 12.00 20.00 25.00 33.00 45.00 41.00 38.00 19.00 16.00 -4.00 -4.00
1992 13.00 19.00 22.00 30.00 35.00 35.00 39.00 48.00 39.00 28.00 11.00 11.00 11.00
1993 12.00 23.00 25.00 26.00 28.00 33.00 42.00 40.00 32.00 23.00 9.00 10.00 9.00
1994 12.00 13.00 21.00 21.00 26.00 35.00 r 40.00 50.00 32.00 25.00 7.00 12.00 7.00
1995 12.00 19.00 18.00 24.00 24.00 30.00 39.00 49.00 39.00 23.00 18.00 9.00 9.00
1996 2.00 -4.00 20.00 24.00 29.00 34.00 54.00 44.00 34.00 15.00 20.00 10.00 -4.00
1997 4.00 12.00 16.00 21.00 29.00 34.00 35.00 45.00 39.00 17.00 15.00 4.00 4.00
1998 12.00 12.00 15.00 18.00 24.00 31.00 42.00 42.00 29.00 26.00 18.00 9.00 9.00
1999 12.00 13.00 16.00 18.00 28.00 36.00 51.00 43.00 39.00 24.00 13.00 11.00 b 11.00
2000 7.00 11.00 23.00 22.00 28.00 37.00 40.00 50.00 34.00 26.00 12.00 13.00 a 7.00
2001 10.00 5.00 23.00 19.00 30.00 39.00 44.00 47.00 38.00 a 32.00 b 16.00 c 10.00 5.00
2002 9.00 7.00 6.00 24.00 28.00 38.00 52.00 39.00 34.00 26.00 19.00 12.00 6.00
2003 19.00 ----- z 21.00 17.00 24.00 40.00 49.00 52.00 41.00 34.00 14.00 11.00 11.00
2004 10.00 8.00 20.00 25.00 33.00 34.00 38.00 43.00 35.00 29.00 5.00 14.00 5.00
2005 11.00 21.00 19.00 22.00 28.00 36.00 41.00 48.00 32.00 25.00 15.00 5.00 5.00
2006 8.00 5.00 12.00 20.00 28.00 35.00 52.00 43.00 31.00 25.00 5.00 8.00 5.00
2007 0.00 12.00 8.00 19.00 24.00 ----- z 55.00 52.00 32.00 27.00 15.00 11.00 0.00
2008 9.00 12.00 16.00 23.00 25.00 27.00 50.00 52.00 38.00 19.00 a 21.00 10.00 9.00
2009 12.00 9.00 16.00 22.00 37.00 38.00 50.00 37.00 39.00 18.00 15.00 6.00 6.00
2010 13.00 21.00 19.00 20.00 27.00 35.00 43.00 41.00 32.00 26.00 10.00 -2.00 -2.00
2011 -5.00 10.00 a 19.00 21.00 23.00 40.00 z 42.00 47.00 b 37.00 27.00 15.00 8.00 -5.00
2012 14.00 15.00 18.00 26.00 27.00 a 39.00 48.00 53.00 39.00 23.00 10.00 11.00 10.00
2013 -1.00 12.00 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z -1.00
Period of Record Statistics
MEAN 6.85 10.52 14.72 20.03 25.50 33.61 42.74 43.51 33.67 23.54 13.61 6.82 2.17
S.D. 6.76 6.25 5.98 4.35 4.84 3.56 5.47 5.48 4.71 5.05 4.46 6.88 7.01
SKEW -1.03 -0.63 -0.42 -0.69 -0.78 0.02 0.39 -0.23 -0.48 -0.49 -1.12 -1.52 -1.21
MAX 19.00 23.00 25.00 30.00 37.00 41.00 55.00 53.00 42.00 34.00 21.00 16.00 14.00
MIN -15.00 -10.00 0.00 9.00 9.00 26.00 31.00 30.00 22.00 8.00 -4.00 -21.00 -21.00
NO YRS 60 60 60 61 62 59 62 61 61 61 62 62 52