DAYTON, TENNESSEE

Monthly Average Maximum Temperature (Degrees Fahrenheit)

(402360)

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
1956 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 81.35 g 75.10 a 59.33 61.84 65.42
1957 50.03 58.71 59.58 74.43 80.26 85.63 90.00 90.68 82.47 66.03 61.43 53.65 71.08
1958 45.16 44.14 55.16 72.93 78.87 87.60 88.97 89.06 84.13 73.03 64.13 47.74 l 71.20
1959 49.43 c 55.29 61.10 73.37 81.94 85.73 s 89.77 a 89.06 82.50 72.32 59.27 53.03 69.73
1960 49.81 48.79 a 47.29 74.13 77.74 86.30 87.50 g 90.00 82.97 71.94 61.27 46.74 67.00
1961 47.50 c 57.64 64.27 a 69.16 e 74.69 b 83.43 85.62 j 84.52 h ----- z 74.23 64.79 f 51.06 65.25
1962 47.23 e 60.71 56.97 a 67.53 87.45 85.63 88.55 90.10 81.33 74.16 57.40 46.90 70.33
1963 43.19 48.46 67.74 73.83 79.81 84.30 86.00 87.45 82.70 80.29 61.27 41.29 69.69
1964 50.19 47.17 62.03 73.43 81.52 88.20 86.65 86.00 83.30 69.39 64.60 52.68 70.43
1965 52.35 52.18 56.77 75.20 84.00 83.93 87.87 89.03 83.43 73.32 62.63 54.19 71.24
1966 42.84 50.96 63.84 70.80 78.10 88.03 92.16 87.23 80.17 71.32 60.27 49.68 69.62
1967 52.03 49.54 68.81 76.93 78.16 86.17 84.19 84.16 80.17 73.23 57.43 53.13 70.33
1968 47.55 46.21 64.61 72.17 78.87 88.57 90.48 93.71 83.73 72.97 58.77 47.26 70.41
1969 44.71 49.64 56.06 75.27 81.42 89.33 92.26 87.58 81.13 70.94 58.63 45.83 a 69.40
1970 41.35 51.68 62.26 74.23 82.65 85.20 90.10 87.94 87.63 74.06 58.57 54.06 70.81
1971 46.77 52.57 56.97 75.23 78.19 89.27 86.65 87.65 85.20 76.87 59.83 57.16 71.03
1972 53.77 50.52 61.52 74.57 78.65 85.03 87.74 88.68 84.57 69.71 55.10 52.39 70.19
1973 47.87 50.68 66.26 67.70 77.16 86.50 88.45 87.58 84.93 75.23 64.50 51.55 70.70
1974 56.16 54.43 68.10 74.13 80.55 82.60 89.97 86.74 78.00 73.06 60.77 50.00 71.21
1975 53.52 55.68 58.90 71.70 81.71 85.93 88.35 88.77 78.93 72.32 61.43 51.45 70.73
1976 44.52 62.48 65.10 76.03 76.77 84.30 87.45 87.39 80.63 66.74 54.57 49.29 69.61
1977 35.90 55.25 66.87 76.87 82.58 88.80 92.45 89.10 82.93 68.84 59.63 48.32 70.63
1978 37.16 44.46 60.06 74.73 77.58 87.20 91.19 87.13 86.00 73.32 64.50 52.45 69.65
1979 41.61 46.46 65.26 71.80 78.06 84.77 84.23 87.35 80.77 72.03 61.23 52.06 68.80
1980 48.42 47.79 58.13 72.13 79.81 87.40 96.16 96.39 87.90 70.13 58.37 51.77 71.20
1981 45.68 54.43 61.03 77.40 77.61 88.90 90.68 87.65 81.93 69.90 61.17 44.81 70.10
1982 44.61 53.89 65.71 67.67 84.68 86.57 89.00 85.81 79.60 72.26 59.97 55.32 70.42
1983 46.87 51.61 61.94 66.33 78.06 84.97 90.77 92.39 82.70 73.45 59.20 44.55 69.40
1984 45.29 56.31 60.42 69.27 77.77 89.53 86.23 85.81 81.43 77.03 57.60 58.29 70.42
1985 40.90 50.18 66.29 74.93 79.48 86.07 87.13 84.74 81.43 73.74 65.47 46.13 69.71
1986 50.06 57.04 65.45 77.00 80.94 89.97 94.35 88.00 81.77 71.32 60.47 47.61 72.00
1987 47.10 52.79 63.48 71.10 83.10 86.27 90.32 91.39 82.50 69.90 62.70 52.81 71.12
1988 43.32 52.55 63.16 73.53 79.42 90.00 88.00 88.26 79.20 63.55 59.97 50.48 69.29
1989 53.39 51.43 64.26 70.80 74.35 80.93 83.87 84.42 76.90 70.81 59.87 41.68 67.73
1990 54.19 59.07 63.65 71.20 75.97 85.23 87.23 86.68 82.23 70.77 63.53 53.97 71.14
1991 48.03 53.50 64.19 72.52 a 79.52 81.83 86.87 86.42 82.87 72.42 56.53 52.77 69.79
1992 49.68 56.59 60.35 71.17 74.97 80.13 84.58 80.32 77.67 67.61 56.93 45.39 67.12
1993 51.03 49.25 55.13 68.70 77.48 84.60 92.42 89.81 81.77 68.65 57.37 48.26 68.70
1994 41.16 54.18 62.23 74.97 75.13 84.23 82.35 82.45 77.33 69.00 63.60 52.94 68.30
1995 47.03 50.25 65.10 74.00 77.29 82.70 88.74 88.00 77.17 68.68 53.07 46.03 68.17
1996 45.45 49.52 56.19 69.87 80.06 83.10 85.19 84.10 76.67 69.58 53.57 52.13 67.12
1997 48.42 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 48.42
1998 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 53.65 53.65
1999 51.71 54.61 57.16 72.57 78.77 85.23 87.06 90.77 85.00 71.45 66.17 51.97 71.04
2000 47.68 56.62 65.87 66.67 80.77 86.00 89.48 88.97 80.87 74.55 56.33 40.77 69.55
2001 43.81 54.96 56.90 71.80 78.71 83.10 86.32 85.61 78.37 69.29 67.43 55.06 69.28
2002 50.29 52.18 59.94 72.90 75.35 86.30 89.81 90.84 84.17 70.52 54.53 47.84 69.55
2003 42.29 47.71 62.61 70.33 75.77 80.77 84.77 86.26 80.40 70.13 62.83 47.61 67.62
2004 46.65 47.69 64.35 69.27 80.71 83.73 86.10 83.19 79.97 72.48 60.77 48.58 68.62
2005 51.94 52.57 57.42 69.23 75.06 83.63 86.42 86.84 84.40 71.52 61.73 46.03 68.90
2006 53.77 48.04 60.84 75.63 74.71 85.67 89.32 90.29 77.87 67.00 58.53 54.03 69.64
2007 49.26 46.96 68.39 66.07 81.19 86.93 85.00 93.84 84.93 74.81 59.63 54.10 70.93
2008 45.03 52.03 59.06 69.40 76.52 88.67 89.32 88.52 83.10 71.10 56.67 51.23 69.22
2009 45.39 53.79 60.68 68.47 76.48 88.33 85.48 86.61 80.47 65.97 61.47 46.42 68.30
2010 41.45 41.68 56.48 74.37 79.58 88.03 90.90 90.58 86.80 74.77 61.63 40.52 68.90
2011 43.39 55.07 61.00 72.70 78.86 b 87.87 90.50 a 92.65 78.76 a 68.45 60.77 53.00 70.25
2012 51.48 54.97 71.57 a 72.77 83.18 t ----- z ----- z ----- z ----- z ----- z ----- z ----- z 62.70
Period of Record Statistics
MEAN 47.19 52.09 61.75 72.24 78.96 85.84 88.39 88.08 81.80 71.51 60.08 50.22 69.78
S.D. 4.36 4.26 4.41 2.95 2.76 2.45 2.83 2.95 2.78 3.05 3.18 4.43 1.15
SKEW -0.25 0.00 -0.46 -0.31 0.56 -0.28 0.27 0.19 0.07 0.03 -0.04 -0.18 -0.47
MAX 56.16 62.48 71.57 77.40 87.45 90.00 96.16 96.39 87.90 80.29 67.43 61.84 72.00
MIN 35.90 41.68 47.29 66.07 74.35 80.13 82.35 80.32 76.67 63.55 53.07 40.52 67.12
NO YRS 55 54 54 54 53 52 51 52 52 54 53 54 49