CHACO CANYN NATL MON,

Monthly Extreme Minimum Temperature (Degrees Fahrenheit)

(291647)

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201103
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
1909 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1910 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1911 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1912 ----- z ----- z ----- z ----- z ----- z ----- z ----- z 48.00 i 23.00 22.00 9.00 -6.00 -6.00
1913 ----- z -1.00 d 8.00 15.00 21.00 31.00 l ----- z ----- z ----- z ----- z ----- z ----- z -1.00
1914 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
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 33.00 p 38.00 a 50.00 49.00 41.00 17.00 1.00 6.00 1.00
1923 4.00 3.00 5.00 18.00 26.00 30.00 50.00 45.00 ----- z ----- z ----- z ----- z 3.00
1924 ----- z ----- z ----- z ----- z 31.00 u 30.00 45.00 42.00 24.00 b 16.00 5.00 k 3.00 s 3.00
1925 ----- z ----- z 11.00 20.00 r ----- z 34.00 i 48.00 46.00 33.00 ----- z ----- z ----- z 11.00
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 50.00 48.00 ----- z ----- z 8.00 18.00 z 8.00
1933 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 40.00 ----- z ----- z ----- z 40.00
1934 ----- z ----- z ----- z ----- z ----- z ----- z ----- z 57.00 z ----- z ----- z ----- z ----- z 57.00
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 40.00 ----- z ----- z ----- z 40.00
1939 -2.00 ----- z 8.00 11.00 ----- z ----- z ----- z ----- z ----- z ----- z ----- z 0.00 -2.00
1940 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 41.00 ----- z 9.00 ----- z 9.00
1941 ----- z 10.00 11.00 ----- z 34.00 33.00 ----- z ----- z ----- z 26.00 10.00 3.00 3.00
1942 ----- z -2.00 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z -2.00
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 -1.00 z -1.00
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 -16.00 c -2.00 9.00 18.00 29.00 40.00 41.00 40.00 37.00 24.00 b 4.00 6.00 l -16.00
1949 -13.00 g -6.00 13.00 b 20.00 d 28.00 34.00 50.00 42.00 38.00 14.00 13.00 -7.00 -13.00
1950 -11.00 3.00 a 6.00 e 17.00 22.00 a 29.00 a 50.00 44.00 36.00 29.00 a 0.00 a 5.00 h -11.00
1951 -1.00 c -18.00 10.00 e 15.00 24.00 a 31.00 51.00 48.00 32.00 21.00 e 11.00 g -4.00 f -18.00
1952 -5.00 b 7.00 c 9.00 a 21.00 28.00 43.00 48.00 a 48.00 a 32.00 b 24.00 d -12.00 -4.00 e -12.00
1953 1.00 -4.00 10.00 b 17.00 c 19.00 b 36.00 c 51.00 44.00 b 33.00 d 23.00 f 11.00 a -4.00 -4.00
1954 1.00 b 8.00 6.00 a 21.00 d 30.00 a 32.00 b 49.00 41.00 34.00 a 23.00 h 16.00 f 2.00 1.00
1955 3.00 a 3.00 d 9.00 g 9.00 h 26.00 b 32.00 g 42.00 47.00 a 32.00 b 18.00 b 4.00 f -5.00 b -5.00
1956 12.00 a -8.00 l 2.00 d 14.00 j 23.00 e 38.00 c 39.00 a 40.00 a 38.00 c 15.00 b 3.00 -9.00 c -9.00
1957 6.00 a 9.00 10.00 b 16.00 e 33.00 c 38.00 h 48.00 50.00 33.00 b 28.00 e -1.00 6.00 -1.00
1958 -5.00 a 10.00 d 9.00 c 12.00 f 30.00 c 34.00 h 49.00 b 48.00 d 33.00 c 18.00 f -2.00 b -6.00 a -6.00
1959 -5.00 d 7.00 c 8.00 d 20.00 27.00 d 32.00 c 40.00 b 40.00 b 28.00 d 24.00 a 4.00 3.00 a -5.00
1960 -9.00 7.00 j 19.00 v 19.00 25.00 40.00 48.00 t 41.00 i 33.00 16.00 10.00 2.00 -9.00
1961 -3.00 10.00 11.00 15.00 25.00 33.00 42.00 42.00 24.00 15.00 12.00 -38.00 -38.00
1962 -21.00 -7.00 ----- z 22.00 10.00 30.00 36.00 34.00 28.00 25.00 14.00 -16.00 -21.00
1963 -35.00 -9.00 5.00 9.00 22.00 31.00 44.00 44.00 36.00 24.00 9.00 -11.00 -35.00
1964 -16.00 a -9.00 7.00 11.00 22.00 30.00 42.00 33.00 33.00 11.00 9.00 -6.00 -16.00
1965 -3.00 -8.00 0.00 ----- z 14.00 30.00 40.00 34.00 22.00 17.00 12.00 -4.00 -8.00
1966 -7.00 -1.00 3.00 9.00 26.00 36.00 a 45.00 41.00 a 36.00 17.00 7.00 -20.00 -20.00
1967 -19.00 5.00 8.00 12.00 a 13.00 37.00 a 45.00 41.00 31.00 a 13.00 8.00 -11.00 -19.00
1968 -8.00 6.00 9.00 11.00 19.00 29.00 33.00 28.00 f 23.00 9.00 -1.00 -12.00 -12.00
1969 -5.00 1.00 2.00 14.00 29.00 37.00 40.00 47.00 34.00 15.00 3.00 -2.00 -5.00
1970 -14.00 9.00 -3.00 11.00 14.00 28.00 ----- z 48.00 22.00 8.00 7.00 -1.00 -14.00
1971 -37.00 -3.00 -17.00 8.00 14.00 25.00 43.00 45.00 23.00 17.00 11.00 -12.00 -37.00
1972 -9.00 -7.00 6.00 12.00 20.00 40.00 47.00 44.00 24.00 22.00 11.00 -2.00 -9.00
1973 -2.00 5.00 17.00 15.00 21.00 ----- z ----- z 44.00 26.00 16.00 -2.00 ----- z -2.00
1974 -13.00 a -2.00 10.00 a 7.00 21.00 29.00 b 42.00 a 38.00 a 19.00 a 26.00 5.00 -11.00 -13.00
1975 -11.00 -1.00 10.00 11.00 b 18.00 a 28.00 46.00 36.00 a 29.00 a 8.00 a 2.00 -4.00 -11.00
1976 -11.00 3.00 6.00 c 14.00 b 25.00 a 29.00 a 45.00 39.00 31.00 9.00 -35.00 b -11.00 a -35.00
1977 -15.00 a -1.00 5.00 a 14.00 17.00 30.00 45.00 41.00 35.00 a 20.00 11.00 -2.00 -15.00
1978 10.00 9.00 a 14.00 16.00 a 22.00 32.00 42.00 40.00 22.00 a 23.00 a 17.00 -24.00 b -24.00
1979 -14.00 2.00 13.00 12.00 23.00 31.00 a 37.00 a 41.00 b 35.00 12.00 5.00 4.00 a -14.00
1980 5.00 c -3.00 a -3.00 11.00 c 17.00 a 29.00 34.00 a ----- z 26.00 11.00 b 1.00 a 8.00 b -3.00
1981 0.00 b ----- z 2.00 a 1.00 20.00 a 30.00 d 42.00 b 44.00 j 36.00 b 17.00 7.00 a -8.00 b -8.00
1982 -10.00 -12.00 10.00 18.00 25.00 34.00 42.00 40.00 b 29.00 9.00 7.00 1.00 -12.00
1983 -2.00 15.00 18.00 13.00 20.00 29.00 44.00 48.00 21.00 21.00 9.00 1.00 -2.00
1984 -19.00 6.00 7.00 15.00 20.00 32.00 45.00 46.00 33.00 24.00 8.00 6.00 -19.00
1985 1.00 -7.00 13.00 19.00 30.00 35.00 44.00 41.00 22.00 21.00 7.00 -2.00 -7.00
1986 6.00 -13.00 13.00 17.00 21.00 40.00 45.00 48.00 31.00 23.00 13.00 8.00 -13.00
1987 -24.00 -4.00 2.00 17.00 33.00 37.00 40.00 38.00 a 29.00 17.00 8.00 -7.00 -24.00
1988 -11.00 11.00 2.00 13.00 a 23.00 32.00 48.00 50.00 27.00 25.00 8.00 -9.00 -11.00
1989 -14.00 -26.00 12.00 20.00 27.00 38.00 48.00 39.00 27.00 7.00 -2.00 -3.00 -26.00
1990 -11.00 -5.00 15.00 24.00 30.00 31.00 49.00 42.00 40.00 21.00 3.00 -37.00 -37.00
1991 -17.00 4.00 12.00 19.00 25.00 32.00 41.00 46.00 30.00 15.00 3.00 9.00 -17.00
1992 0.00 14.00 11.00 23.00 32.00 32.00 39.00 38.00 28.00 18.00 -1.00 -16.00 -16.00
1993 8.00 11.00 6.00 13.00 21.00 33.00 45.00 41.00 26.00 7.00 0.00 -2.00 -2.00
1994 -2.00 -8.00 8.00 20.00 24.00 35.00 45.00 48.00 32.00 17.00 5.00 6.00 -8.00
1995 5.00 a 14.00 8.00 13.00 25.00 27.00 39.00 48.00 32.00 15.00 4.00 9.00 o 4.00
1996 -5.00 -1.00 9.00 15.00 30.00 31.00 45.00 45.00 28.00 12.00 12.00 0.00 -5.00
1997 -19.00 7.00 8.00 12.00 27.00 41.00 36.00 47.00 38.00 15.00 10.00 -7.00 -19.00
1998 10.00 11.00 10.00 15.00 26.00 33.00 49.00 48.00 31.00 21.00 10.00 -5.00 -5.00
1999 5.00 0.00 15.00 10.00 24.00 30.00 51.00 42.00 22.00 15.00 1.00 -8.00 -8.00
2000 -8.00 a 11.00 8.00 21.00 18.00 42.00 45.00 41.00 20.00 22.00 4.00 -2.00 b -8.00
2001 -2.00 1.00 14.00 13.00 28.00 27.00 46.00 42.00 26.00 14.00 7.00 a -16.00 d -16.00
2002 -1.00 -12.00 -5.00 17.00 26.00 38.00 49.00 38.00 36.00 24.00 8.00 1.00 -12.00
2003 7.00 3.00 12.00 11.00 20.00 34.00 43.00 48.00 32.00 21.00 5.00 -2.00 a -2.00
2004 0.00 0.00 12.00 25.00 25.00 34.00 37.00 42.00 25.00 18.00 -11.00 -8.00 -11.00
2005 9.00 11.00 12.00 ----- z 19.00 a 33.00 41.00 46.00 31.00 25.00 7.00 -13.00 -13.00
2006 -4.00 1.00 10.00 13.00 26.00 37.00 47.00 42.00 28.00 19.00 -2.00 -4.00 e -4.00
2007 -9.00 a -10.00 8.00 21.00 30.00 30.00 i 46.00 47.00 29.00 16.00 6.00 -3.00 -10.00
2008 -13.00 a 4.00 a 12.00 a 12.00 18.00 a 33.00 49.00 42.00 37.00 12.00 a 4.00 b -1.00 c -13.00
2009 -2.00 5.00 9.00 12.00 36.00 41.00 46.00 39.00 29.00 h 15.00 b 0.00 c -9.00 a -9.00
2010 -6.00 8.00 a 11.00 22.00 v 19.00 a 38.00 47.00 43.00 36.00 17.00 -4.00 a 3.00 -6.00
2011 -15.00 b -26.00 a 9.00 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z -26.00
Period of Record Statistics
MEAN -6.12 0.60 8.05 15.07 23.71 33.37 44.34 43.11 30.46 17.73 4.75 -5.18 -14.91
S.D. 10.07 8.88 5.53 4.57 5.41 4.24 4.41 4.12 5.71 5.50 7.49 9.15 10.32
SKEW -0.64 -0.83 -1.71 -0.14 -0.12 0.44 -0.51 -0.32 -0.08 -0.08 -2.53 -1.42 -0.92
MAX 12.00 15.00 18.00 25.00 36.00 43.00 51.00 50.00 41.00 29.00 17.00 9.00 -2.00
MIN -37.00 -26.00 -17.00 1.00 10.00 25.00 33.00 33.00 19.00 7.00 -35.00 -38.00 -38.00
NO YRS 65 65 66 60 66 62 65 64 69 64 65 62 33