KNOXVILLE WSO AIRPORT, TENNESSEE

Monthly Average Temperature (Degrees Fahrenheit)

(404950)

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
1910 38.19 39.88 b 57.32 57.80 63.11 71.23 76.53 75.53 73.17 62.08 43.55 34.35 57.73
1911 43.08 47.21 49.00 56.83 70.39 76.22 75.87 77.37 77.10 63.92 44.53 44.92 60.54
1912 32.77 36.09 46.58 59.58 67.48 72.43 77.23 75.37 74.37 60.98 45.98 39.73 57.38
1913 46.42 40.93 50.19 57.48 67.85 75.12 80.10 78.81 70.15 57.26 50.33 42.69 59.78
1914 41.60 39.12 44.50 58.25 68.11 79.42 77.45 76.31 70.00 61.23 47.77 36.77 58.38
1915 38.76 43.84 41.16 61.93 69.10 72.55 76.76 74.39 72.75 62.13 51.57 39.82 58.73
1916 45.02 39.95 47.68 57.32 69.76 72.78 77.73 77.03 68.65 59.47 48.80 38.97 58.60
1917 43.35 39.38 48.90 60.43 60.87 71.37 76.18 74.29 68.72 52.37 47.48 32.55 56.32
1918 29.23 45.59 55.58 57.07 70.27 74.77 73.97 79.26 65.13 63.71 48.62 47.55 59.23
1919 39.10 40.39 51.06 58.58 66.71 76.70 79.52 76.00 72.10 68.89 51.00 41.03 60.09
1920 41.42 39.17 48.00 56.97 66.02 73.42 76.21 73.69 71.67 60.34 45.37 40.94 57.77
1921 41.90 44.57 58.69 59.37 66.19 78.23 78.61 76.63 77.43 57.73 50.82 44.40 61.22
1922 39.69 46.86 51.85 61.05 68.23 75.77 77.31 74.00 73.52 60.66 49.08 46.65 60.39
1923 43.95 39.36 49.02 57.40 65.21 74.97 76.56 76.24 72.38 59.18 47.55 47.85 59.14
1924 34.77 40.22 45.48 58.00 62.58 76.25 75.61 78.37 66.27 60.42 50.70 40.18 57.41
1925 41.53 47.27 52.10 63.40 64.05 78.37 79.94 78.47 79.72 56.95 46.80 39.19 60.65
1926 38.31 44.16 42.92 55.52 67.61 73.22 78.24 77.94 76.83 60.87 44.23 41.60 58.45
1927 40.13 50.38 51.34 61.93 68.73 72.97 77.85 73.71 73.22 63.05 52.67 40.58 60.55
1928 38.39 41.83 48.77 55.62 65.15 71.87 77.97 77.34 67.07 61.98 48.60 41.52 58.01
1929 40.63 38.93 53.31 61.75 66.13 73.42 76.89 75.42 71.00 57.44 47.43 39.39 58.48
1930 40.31 47.86 47.05 61.35 68.52 74.52 80.68 76.48 73.92 57.45 48.42 36.85 59.45
1931 39.97 44.73 44.56 58.32 66.00 77.45 81.02 76.05 76.77 63.21 55.68 49.19 61.08
1932 48.45 50.34 45.55 59.63 67.65 76.83 79.89 78.34 72.05 59.27 45.92 43.15 60.59
1933 46.76 40.79 48.98 59.32 72.45 77.22 79.35 76.74 76.20 61.42 49.38 48.74 61.45
1934 42.95 a 36.70 48.47 60.02 69.26 78.20 81.19 78.35 72.85 61.60 51.67 39.42 60.06
1935 41.39 42.62 56.05 58.92 67.77 73.60 79.69 79.45 73.75 62.40 50.80 32.61 59.92
1936 34.77 37.74 52.73 57.22 71.92 79.70 80.45 80.18 76.08 61.95 46.95 44.90 60.38
1937 51.45 40.39 47.37 58.42 67.94 77.17 77.97 79.23 71.05 57.02 45.18 39.55 59.39
1938 40.31 49.27 57.05 61.10 68.26 73.23 78.39 79.52 71.93 62.05 50.42 39.87 60.95
1939 42.60 47.05 52.57 a 56.93 68.61 78.15 78.79 77.55 75.90 63.58 47.05 42.35 60.93
1940 26.69 40.19 47.21 57.73 65.40 75.58 76.94 77.40 69.65 61.31 48.62 46.16 57.74
1941 40.68 36.62 43.95 62.75 70.48 76.22 79.24 79.08 75.83 67.10 48.03 45.15 60.43
1942 37.63 36.14 50.16 61.55 67.79 76.70 78.57 a 75.06 69.25 59.94 51.17 39.00 58.58
1943 42.44 42.09 46.26 57.03 69.73 79.90 77.97 78.95 67.90 56.79 46.85 39.81 58.81
1944 40.85 46.57 49.42 57.32 71.76 78.62 78.42 77.55 71.78 59.42 47.03 37.15 59.66
1945 38.00 43.54 58.95 60.47 64.06 73.90 77.79 77.18 74.48 58.31 50.60 34.97 59.35
1946 40.15 43.70 57.85 61.67 66.53 74.07 78.39 74.44 70.18 60.34 53.58 44.19 60.42
1947 43.45 33.18 41.23 61.90 65.44 74.28 74.58 79.40 g 72.78 a 66.02 47.80 41.45 56.55
1948 32.21 44.50 54.21 63.50 67.34 75.97 79.15 76.55 71.53 56.97 51.95 42.39 59.69
1949 48.47 47.75 49.45 56.75 68.81 76.52 80.56 76.92 67.50 65.21 46.97 43.08 60.67
1950 51.97 45.91 47.42 55.77 70.50 74.73 75.45 74.16 69.43 63.87 43.35 35.35 58.99
1951 41.89 44.00 49.60 56.82 66.97 75.45 79.26 78.89 71.92 61.92 42.70 43.47 59.41
1952 46.52 45.38 49.03 59.33 68.47 81.42 81.10 77.16 70.37 55.84 46.48 40.74 60.15
1953 44.65 44.71 52.27 56.22 71.55 77.95 78.19 78.40 71.47 63.27 a 47.93 39.31 60.49
1954 39.79 46.98 48.29 64.62 62.24 76.47 81.74 79.85 76.00 61.52 46.05 38.52 60.17
1955 38.73 43.38 52.24 62.85 70.37 70.45 79.84 80.47 75.50 58.81 45.85 38.79 59.77
1956 36.03 47.22 49.97 56.58 69.84 74.53 77.50 78.37 69.08 63.55 47.22 51.40 60.11
1957 41.35 49.61 48.71 62.80 69.87 76.65 79.61 77.66 72.65 56.55 50.57 43.95 a 60.83
1958 35.58 31.93 45.84 58.98 68.23 75.68 78.45 77.16 72.12 59.79 51.42 37.44 57.72
1959 37.21 43.73 47.06 60.00 71.45 74.92 78.47 79.24 73.13 62.37 46.72 42.55 59.74
1960 40.74 38.57 36.76 61.28 65.87 74.77 78.39 78.16 73.07 61.81 48.75 35.23 57.78
1961 34.19 46.68 51.60 52.70 62.05 70.68 74.35 74.15 72.42 57.90 51.73 39.92 57.36
1962 36.92 47.20 46.74 54.65 74.03 74.38 78.31 78.18 70.90 62.48 46.40 37.02 58.93
1963 33.39 34.93 55.05 60.80 65.89 72.32 73.58 75.50 69.42 62.02 47.25 30.15 56.69
1964 36.29 36.09 47.63 60.52 66.90 75.08 75.63 73.69 69.98 55.45 52.23 43.52 57.75
1965 40.10 39.73 46.79 62.38 72.31 73.87 77.95 77.47 73.52 58.95 51.70 43.00 59.81
1966 33.95 41.55 50.42 58.90 66.06 74.23 79.31 74.95 68.83 57.50 49.12 40.00 57.90
1967 41.89 38.02 54.69 62.68 63.50 73.12 71.76 73.16 65.52 58.16 44.20 44.56 57.61
1968 37.06 33.28 49.87 59.02 65.24 73.52 77.19 78.35 69.05 58.74 48.08 37.03 57.20
1969 36.44 39.39 42.05 59.43 67.26 74.43 78.90 74.52 69.32 59.08 45.45 37.66 56.99
1970 30.55 39.29 48.69 61.22 68.56 73.38 78.45 77.10 75.28 62.79 48.12 44.10 58.96
1971 38.50 39.39 45.53 58.42 63.90 75.85 75.40 75.98 73.23 65.24 48.65 50.34 59.20
1972 42.44 39.41 48.16 59.47 64.90 70.83 75.44 75.89 71.90 56.79 47.42 44.76 58.12
1973 38.03 39.86 55.79 56.32 63.47 74.73 76.63 76.19 73.78 62.32 52.42 41.06 59.22
1974 49.27 43.09 55.18 59.73 68.10 70.48 77.65 76.52 69.73 58.56 50.72 41.82 60.07
1975 43.29 45.45 46.61 57.47 70.03 74.52 77.55 78.76 68.90 60.05 50.17 41.06 59.49
1976 34.29 48.21 52.55 58.90 63.35 73.83 76.19 74.89 67.68 54.52 43.12 37.48 57.08
1977 27.16 41.41 54.97 62.92 69.77 75.27 80.24 78.89 74.02 57.34 52.63 40.15 59.56
1978 29.39 34.54 48.95 61.05 66.52 75.38 78.69 77.06 74.78 58.18 54.42 42.79 58.48
1979 33.02 36.71 53.10 59.85 66.94 72.80 74.94 77.61 72.18 58.31 51.38 42.15 58.25
1980 41.61 36.59 47.63 59.07 68.10 75.13 82.08 81.66 73.67 55.98 47.33 40.10 59.08
1981 33.37 41.82 46.76 63.42 63.82 77.08 81.32 78.32 70.15 58.87 49.42 38.66 58.58
1982 33.79 43.09 52.97 55.17 69.27 72.55 77.56 76.71 70.00 59.48 50.92 46.32 58.99
1983 37.98 41.11 49.68 53.22 65.35 72.42 78.48 79.60 70.28 60.16 47.38 36.39 57.67
1984 35.31 43.40 47.66 57.25 62.76 74.75 73.27 74.11 67.12 67.65 46.27 47.50 58.09
1985 29.42 37.05 50.24 58.55 65.71 72.50 76.52 75.15 68.50 63.68 56.77 34.82 57.41
1986 34.95 43.86 48.73 58.60 68.13 77.20 81.44 76.74 72.78 60.16 52.42 39.08 59.51
1987 36.81 42.16 49.18 54.98 71.26 75.48 78.52 79.58 70.03 52.82 50.18 43.47 58.71
1988 33.90 39.38 50.05 57.20 65.00 74.40 78.69 79.52 71.27 52.65 49.62 40.42 57.67
1989 42.81 41.25 53.50 57.72 62.39 73.28 77.47 76.74 70.90 59.34 48.08 32.18 57.97
1990 44.73 48.86 53.58 57.85 65.85 75.32 77.98 77.89 72.12 59.90 52.10 45.02 60.93
1991 41.19 43.77 51.97 62.73 72.00 74.88 79.32 76.50 71.37 60.98 47.08 43.52 60.44
1992 40.47 45.78 48.26 58.95 64.02 72.17 77.92 73.69 71.25 57.31 48.30 39.98 58.17
1993 43.48 39.46 45.63 56.15 66.92 75.97 83.02 78.66 70.55 57.89 48.32 40.19 58.85
1994 31.95 43.36 49.47 61.93 63.89 76.42 76.76 75.74 69.00 60.13 53.53 44.84 58.92
1995 39.18 40.68 53.10 61.00 67.31 73.73 80.23 81.52 70.47 58.56 43.57 37.05 58.87
1996 36.40 39.66 44.73 55.08 69.35 74.20 76.77 76.15 68.87 59.16 44.05 43.32 57.31
1997 39.40 46.54 54.18 54.02 62.19 71.87 78.37 75.69 71.65 58.90 43.87 39.16 57.99
1998 42.82 45.98 49.42 57.30 70.65 75.90 79.35 77.71 76.00 61.84 50.07 44.35 60.95
1999 42.97 a 44.07 45.23 61.20 66.19 74.97 78.60 77.78 a 69.90 58.53 52.72 42.34 59.54
2000 37.47 46.09 53.24 55.87 69.90 74.66 a 77.31 76.84 70.63 60.97 47.40 34.00 58.70
2001 35.45 45.79 46.29 61.68 68.39 72.92 77.98 77.44 68.17 56.90 54.17 45.58 59.23
2002 41.53 41.30 50.32 62.62 65.24 76.55 79.13 78.89 74.87 62.90 46.38 40.65 60.03
2003 33.84 40.84 53.24 60.40 67.44 72.12 76.29 77.82 69.35 58.48 53.00 38.44 58.44
2004 37.27 40.33 53.24 58.52 70.79 74.62 76.71 73.74 70.18 63.79 53.07 39.85 59.34
2005 43.00 44.00 48.42 58.60 64.06 74.97 78.42 79.31 74.07 61.10 51.23 37.58 59.56
2006 45.63 40.68 50.81 63.57 65.50 75.38 79.39 80.40 68.23 56.81 48.87 44.31 59.96
2007 41.13 38.16 56.95 56.10 69.98 76.73 77.48 83.24 74.70 65.03 49.28 45.50 61.19
2008 37.02 43.17 49.40 59.23 66.44 76.63 77.85 77.02 72.98 59.06 45.78 42.08 58.89
2009 36.63 42.79 51.27 58.37 67.50 75.98 74.48 76.35 71.72 57.95 50.88 39.00 58.58
2010 34.29 34.79 47.35 62.00 70.77 79.90 81.81 81.39 73.15 60.03 50.95 32.82 59.10
2011 35.95 46.20 52.90 63.33 68.05 77.95 81.76 80.08 69.87 57.95 51.13 45.00 60.85
2012 43.24 46.16 60.35 61.36 a 73.61 v ----- z ----- z ----- z ----- z ----- z ----- z ----- z 52.78
Period of Record Statistics
MEAN 39.16 42.14 49.90 59.15 67.33 74.99 78.08 77.24 71.68 60.10 48.86 40.98 59.13
S.D. 4.94 4.10 4.13 2.58 2.76 2.22 2.04 2.04 2.80 3.06 2.96 4.10 1.19
SKEW -0.04 -0.18 -0.01 -0.10 -0.07 0.30 -0.25 0.11 0.20 0.15 0.11 -0.08 -0.02
MAX 51.97 50.38 60.35 64.62 74.03 81.42 83.02 83.24 79.72 68.89 56.77 51.40 61.45
MIN 26.69 31.93 36.76 52.70 60.87 70.45 71.76 73.16 65.13 52.37 42.70 30.15 56.32
NO YRS 103 103 103 103 102 102 102 101 102 102 102 102 101