JACKSON EXP STN, TENNESSEE

Monthly Average Minimum Temperature (Degrees Fahrenheit)

(404561)

File last updated on May 16,
*** Note *** Provisional Data *** After Year/Month 201205
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
1891 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1892 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1893 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1894 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1895 ----- z ----- z ----- z 49.97 55.61 65.83 68.58 66.87 64.68 h 39.26 39.00 33.77 52.36
1896 32.58 33.86 39.23 57.27 63.97 66.03 70.74 68.00 58.83 46.13 42.40 31.97 50.92
1897 28.39 37.39 45.77 50.60 53.52 65.37 70.26 66.06 59.33 48.52 39.13 34.42 49.90
1898 38.81 34.04 45.71 46.67 59.81 68.33 69.03 67.74 h 64.03 49.48 38.17 f 30.00 h 52.88
1899 31.74 23.75 40.58 51.96 c 63.32 68.73 d 68.10 70.00 e 56.50 j 54.68 c 44.07 c 31.90 a 49.89
1900 34.23 30.41 a 39.52 b 53.00 59.64 c 68.93 ----- z ----- z 67.67 56.78 d 41.54 b ----- z 50.19
1901 35.74 32.96 a 42.73 a 48.08 d ----- z 68.89 c ----- z ----- z ----- z ----- z ----- z ----- z 45.68
1902 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 47.79 l 45.93 a 32.39 39.16
1903 30.39 29.96 44.29 47.30 54.87 55.73 65.23 63.81 51.67 44.71 32.80 24.13 45.41
1904 26.42 32.55 41.45 41.47 51.57 a 60.00 62.16 62.47 a 60.40 43.87 35.27 32.97 a 45.88
1905 24.27 a 24.82 f 45.87 49.67 62.72 b 65.93 68.23 66.90 62.04 b 50.58 39.87 31.74 51.62
1906 33.20 a 27.86 37.10 50.10 55.32 63.90 a 66.00 67.42 66.77 48.35 37.03 36.61 49.14
1907 40.94 32.68 51.68 43.62 a 54.00 62.77 68.48 68.23 a 59.53 46.84 37.03 35.58 50.12
1908 31.23 34.72 48.71 52.63 59.65 65.57 67.39 67.55 59.67 41.39 41.90 36.81 50.60
1909 34.19 37.50 41.74 50.00 56.23 67.17 69.16 67.77 59.67 45.06 46.87 26.65 50.17
1910 30.32 26.59 a 45.48 47.23 61.55 67.93 a ----- z ----- z 61.63 46.10 32.17 28.71 44.77
1911 33.26 35.32 40.69 b 46.40 56.06 64.57 65.00 a 68.37 d 66.33 51.84 35.93 35.29 49.92
1912 21.48 24.72 35.48 51.03 56.90 62.69 a 70.10 b 65.97 b 61.54 f 48.52 b 33.07 b 32.63 d 45.69
1913 35.95 k 30.88 b 39.29 48.00 b 55.89 c 62.86 b 68.93 d 68.54 c 62.48 e 46.07 d 42.62 a 33.53 a 50.83
1914 35.24 b 29.04 36.93 a 48.38 a 53.26 68.53 68.23 a 68.63 a 59.70 c 52.48 b 34.96 b 28.60 a 48.67
1915 26.75 g 35.79 32.52 48.20 59.81 63.67 66.35 65.19 62.79 b 48.97 a 41.50 32.40 a 50.65
1916 35.79 b 30.38 37.61 46.70 58.94 64.14 b 70.83 a 68.65 55.00 c 45.35 37.07 29.10 a 48.30
1917 34.13 28.59 a 41.10 46.07 a 49.21 b 62.63 67.30 a 64.19 58.90 a 38.97 35.28 a 20.10 a 45.54
1918 10.67 a 35.93 43.94 47.87 59.81 66.87 62.84 68.19 51.77 52.65 37.20 37.58 47.94
1919 28.52 32.54 39.42 47.10 55.84 66.73 67.97 67.65 58.90 59.23 37.93 28.84 49.22
1920 29.42 32.69 38.97 45.20 58.65 61.67 66.39 64.32 62.60 46.35 33.53 33.94 47.81
1921 35.61 36.54 49.71 47.13 54.29 67.23 68.90 67.84 67.50 42.74 40.20 34.19 50.99
1922 30.06 37.25 41.90 51.90 58.90 64.97 66.58 63.23 59.27 45.77 38.23 37.23 49.61
1923 34.97 29.46 36.32 45.90 56.29 64.90 65.55 67.29 60.37 44.26 37.62 a 40.61 48.63
1924 25.55 31.52 35.77 47.63 51.00 67.63 64.77 67.58 56.97 46.48 38.77 30.45 47.01
1925 31.03 37.21 40.61 53.13 51.77 67.27 67.52 64.65 67.77 47.13 36.87 28.71 49.47
1926 30.87 36.39 35.74 42.03 53.23 61.40 65.65 68.35 64.13 52.03 34.33 31.94 48.01
1927 31.03 39.07 41.13 51.43 59.10 64.53 64.90 62.03 58.93 47.00 43.27 29.77 49.35
1928 28.81 32.14 38.06 43.67 55.03 64.00 68.65 69.39 54.37 52.55 39.33 30.90 48.07
1929 30.13 27.36 44.45 52.30 56.94 64.30 69.16 62.97 60.73 47.90 38.90 34.35 49.12
1930 28.48 39.54 38.16 49.33 58.19 60.87 67.77 63.77 62.57 46.06 40.43 30.32 48.79
1931 29.55 35.21 35.00 45.63 52.52 63.60 69.19 65.42 63.23 51.52 45.53 40.90 49.78
1932 36.94 40.34 35.58 49.53 55.61 66.33 70.39 67.90 61.40 46.32 34.67 30.71 49.64
1933 37.06 31.93 39.65 48.50 61.35 62.23 67.74 65.58 65.97 47.19 37.27 39.23 50.31
1934 32.55 26.36 34.87 47.40 55.35 66.43 70.06 70.29 58.97 49.42 41.80 31.19 48.72
1935 31.42 33.57 47.35 48.47 57.48 63.17 69.13 68.48 58.87 49.58 40.67 26.29 49.54
1936 25.65 27.07 41.84 43.90 56.55 63.13 71.35 69.00 64.43 48.81 33.83 34.35 48.33
1937 36.93 a 32.54 34.45 48.23 57.48 65.70 65.45 68.87 58.50 47.33 a 36.60 32.39 48.71
1938 31.00 41.36 47.32 50.53 58.13 63.37 68.45 69.16 59.13 45.65 36.20 29.48 49.98
1939 34.32 32.54 40.35 46.00 55.84 68.07 67.61 65.94 61.27 49.06 33.83 33.87 49.06
1940 14.65 32.41 39.35 48.30 50.55 64.63 66.90 66.84 53.57 45.77 36.27 36.26 46.29
1941 31.77 29.00 33.39 50.77 57.87 64.20 69.10 68.81 61.97 55.77 35.83 34.68 49.43
1942 23.48 30.79 40.45 49.70 54.71 65.37 68.65 65.35 56.93 46.19 42.17 33.61 48.12
1943 29.39 33.00 34.74 48.17 60.13 68.00 68.23 67.77 57.20 45.13 34.10 30.71 48.05
1944 31.35 38.55 39.58 48.62 a 59.97 67.07 63.45 68.35 61.50 45.42 41.97 28.61 49.54
1945 30.19 33.75 48.87 50.50 53.68 64.23 66.19 66.55 62.73 46.48 42.20 27.84 49.44
1946 31.84 34.76 c 47.90 a 52.10 54.45 63.38 i 69.14 q 64.07 d 58.60 46.68 44.80 36.71 c 47.19
1947 35.19 22.96 31.65 51.10 a 53.97 65.03 60.71 70.61 60.83 55.29 38.43 30.61 48.03
1948 20.94 32.48 42.71 52.87 56.45 63.87 68.71 63.68 58.17 43.81 40.80 36.06 48.38
1949 38.06 36.75 40.32 49.17 58.13 a 67.97 71.48 66.45 55.53 53.97 35.23 33.58 50.55
1950 39.94 34.96 35.29 43.40 60.35 64.73 65.81 63.26 59.80 52.65 32.30 25.87 48.20
1951 30.58 32.54 40.83 a 45.23 52.65 65.03 ----- z 66.03 58.70 48.97 33.67 36.27 a 46.41
1952 38.23 37.52 39.48 46.40 55.61 69.87 67.61 67.65 55.30 37.39 36.17 32.58 48.65
1953 35.90 34.57 42.81 44.87 60.65 69.30 68.68 64.32 54.07 43.55 33.47 29.71 48.49
1954 31.94 37.68 38.42 53.47 52.03 64.77 70.19 69.61 60.17 50.10 35.17 31.23 49.56
1955 29.35 33.18 41.23 52.27 58.42 59.60 70.77 67.23 59.97 46.77 36.27 29.45 48.71
1956 26.35 38.28 38.32 46.70 60.10 63.17 68.06 66.19 53.55 a 49.16 36.20 39.29 48.78
1957 29.48 39.75 39.39 51.90 57.81 66.37 67.32 64.45 60.20 45.55 40.17 37.10 49.96
1958 26.52 20.36 35.16 48.10 57.10 64.53 69.48 64.65 60.67 45.58 39.90 27.55 46.63
1959 27.45 32.54 37.16 48.97 61.29 63.97 66.13 68.29 62.57 50.84 34.60 35.00 49.07
1960 34.10 30.83 29.42 50.37 53.39 63.90 67.19 68.35 61.97 51.61 37.03 27.39 47.96
1961 24.68 37.11 43.23 44.83 53.87 62.00 66.16 64.23 59.10 45.20 a 38.23 31.55 47.52
1962 23.39 33.82 35.32 45.57 62.52 64.70 66.81 64.29 59.37 50.77 35.63 25.10 47.27
1963 17.65 20.79 41.26 50.77 57.26 65.83 67.52 65.74 57.70 47.00 37.67 18.00 45.60
1964 25.16 27.41 37.48 52.30 58.81 65.57 67.68 65.65 58.67 43.52 40.27 32.45 47.91
1965 29.77 28.54 32.94 50.57 62.48 65.37 67.06 66.10 63.00 43.94 41.70 32.35 48.65
1966 23.26 31.64 38.55 47.27 54.39 61.00 70.32 65.10 59.07 42.94 41.30 30.90 47.14
1967 30.32 26.86 44.26 53.17 55.90 65.87 65.29 62.10 55.67 45.03 33.53 33.48 47.62
1968 24.77 24.31 36.45 49.73 56.58 64.70 67.81 67.71 55.33 46.87 38.83 29.42 46.88
1969 29.71 32.07 31.84 49.93 57.13 65.17 71.13 64.29 59.13 48.13 35.07 29.29 47.74
1970 21.68 29.46 37.90 51.73 58.65 64.43 66.32 68.77 65.90 48.55 37.33 34.90 48.80
1971 27.97 29.32 34.90 45.87 52.58 67.47 67.58 65.16 64.17 55.42 38.50 39.61 49.05
1972 30.23 30.62 39.29 50.63 56.61 62.30 67.19 67.19 64.87 49.94 38.53 30.74 49.01
1973 28.16 29.32 47.42 48.57 54.97 67.23 70.16 65.48 65.17 52.42 44.40 ----- z 52.12
1974 35.71 31.36 44.52 47.53 60.52 62.00 69.03 67.19 56.83 45.52 39.47 31.97 49.30
1975 32.23 32.29 36.19 46.80 60.55 65.50 67.23 69.32 58.07 50.16 41.70 33.90 49.49
1976 25.87 38.28 44.97 48.20 52.23 63.27 66.68 63.13 58.57 43.13 30.63 25.74 46.72
1977 15.48 24.00 c 42.40 a 50.67 59.90 65.07 71.10 68.39 64.70 44.23 41.77 29.26 48.08
1978 19.32 19.11 34.90 50.23 57.48 65.90 69.77 68.19 62.63 42.13 42.67 30.29 46.89
1979 21.03 23.64 41.32 49.83 57.58 64.50 70.71 67.94 59.63 48.94 37.17 31.81 47.84
1980 32.42 25.97 35.26 45.23 56.87 65.10 72.45 70.26 63.73 44.19 37.40 29.94 48.23
1981 23.84 29.46 36.42 53.47 54.48 68.33 70.16 67.19 57.47 47.55 39.60 27.48 47.95
1982 22.06 29.29 41.97 45.20 60.48 63.30 71.32 67.61 59.20 47.71 40.33 38.97 48.95
1983 29.42 33.29 39.94 44.03 56.06 63.77 70.74 70.74 60.13 51.19 40.07 24.13 48.63
1984 22.26 33.10 37.19 47.50 55.77 66.67 67.65 67.71 58.17 56.39 36.60 40.42 49.12
1985 20.77 27.54 43.06 50.83 58.10 65.33 69.03 68.45 58.83 54.10 47.17 25.19 49.03
1986 26.03 34.96 37.84 49.47 59.90 68.23 71.71 66.23 65.13 50.87 41.50 33.03 50.41
1987 28.45 35.29 41.55 44.33 63.06 66.77 69.65 71.00 59.23 40.55 42.53 33.77 49.68
1988 25.00 27.93 38.58 46.67 53.55 61.87 69.26 70.10 61.63 43.94 39.03 30.00 47.30
1989 34.81 29.11 40.87 47.90 55.55 66.03 69.61 67.10 60.50 48.52 38.23 20.48 48.23
1990 34.71 38.54 42.55 46.07 56.65 66.73 68.48 66.48 62.67 45.84 42.70 33.90 50.44
1991 30.45 33.39 41.35 53.50 63.94 68.13 70.52 66.74 61.60 49.90 36.93 35.97 51.04
1992 30.23 36.45 40.81 48.33 55.94 63.57 70.10 64.45 60.23 46.39 40.40 33.19 49.17
1993 32.39 28.96 38.42 45.67 57.55 66.37 72.61 69.52 58.27 47.45 36.97 32.97 48.93
1994 26.39 32.46 39.55 51.00 54.35 69.23 69.84 66.00 57.17 50.06 45.27 36.52 49.82
1995 31.03 29.71 43.71 49.07 59.90 64.07 68.68 71.94 58.90 47.29 33.77 30.35 49.03
1996 28.71 30.10 34.65 44.73 62.52 66.43 69.13 67.90 59.77 48.42 38.40 34.90 48.81
1997 27.65 36.89 43.19 42.90 53.16 65.47 70.45 67.39 60.77 47.94 37.63 32.87 48.86
1998 35.94 37.64 41.26 49.37 63.00 69.83 72.16 69.29 64.87 50.77 41.53 34.10 52.48
1999 33.84 37.43 36.87 53.97 56.61 68.57 72.65 66.32 57.03 45.90 42.77 31.97 50.33
2000 30.71 35.10 43.77 45.80 61.74 66.43 68.55 69.58 60.73 50.74 39.00 22.03 49.52
2001 25.74 35.75 36.26 54.07 58.48 63.93 71.29 70.65 59.40 45.65 40.40 36.42 49.84
2002 31.77 31.14 39.77 52.63 57.29 67.47 71.42 69.68 64.70 53.94 37.63 32.32 50.81
2003 24.52 30.96 41.35 50.43 ----- z 63.67 70.26 69.94 58.60 49.13 44.33 31.32 48.59
2004 28.68 30.07 44.13 48.67 63.13 67.83 69.19 63.45 60.73 54.68 46.37 29.74 50.56
2005 36.58 36.93 39.00 49.47 54.97 67.17 71.10 71.61 64.03 47.68 41.20 28.84 50.71
2006 36.29 29.82 41.61 55.23 58.13 65.00 70.23 71.10 58.07 46.29 39.00 34.26 50.42
2007 32.42 28.43 47.84 46.20 60.29 66.73 69.55 72.77 64.17 53.52 39.40 35.26 51.38
2008 27.61 32.83 40.45 48.07 57.74 68.47 69.39 67.84 61.90 46.45 35.60 29.97 48.86
2009 26.16 33.14 41.06 48.67 59.77 68.30 67.32 66.97 64.17 a 48.10 40.97 30.13 49.56
2010 24.10 25.25 38.55 50.80 62.19 71.43 72.74 71.23 59.70 43.35 37.53 26.45 48.61
2011 25.90 33.50 40.35 50.30 57.23 68.00 72.42 67.45 57.52 a 43.03 40.97 32.58 49.10
2012 31.71 33.86 49.13 48.82 b 62.60 u ----- z ----- z ----- z ----- z ----- z ----- z ----- z 40.88
Period of Record Statistics
MEAN 29.51 32.07 40.12 48.74 57.27 65.36 68.52 67.16 60.31 47.89 38.74 31.83 48.86
S.D. 5.43 4.50 4.24 2.97 3.23 2.45 2.27 2.32 3.32 3.92 3.51 4.25 1.31
SKEW -0.64 -0.45 0.25 0.03 0.01 -0.46 -0.60 -0.11 -0.04 0.26 0.18 -0.50 -0.25
MAX 40.94 41.36 51.68 57.27 63.97 71.43 72.74 72.77 67.77 59.23 47.17 40.90 52.48
MIN 10.67 19.11 29.42 41.47 49.21 55.73 60.71 62.03 51.67 37.39 30.63 18.00 45.41
NO YRS 114 115 116 117 114 115 111 112 112 115 115 113 102