PORTLAND 2, TENNESSEE

Monthly Average Maximum Temperature (Degrees Fahrenheit)

(407359)

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
1955 ----- z ----- z ----- z ----- z ----- z 85.25 n 91.65 91.16 88.80 71.67 a 57.70 48.71 74.95
1956 43.81 54.66 60.16 67.67 79.52 86.03 90.50 a 89.65 83.50 74.94 58.43 57.65 70.54
1957 46.06 55.61 56.06 72.70 78.77 a 85.53 88.68 89.10 80.23 66.45 58.53 54.29 69.33
1958 43.13 40.07 50.58 69.17 77.74 85.70 88.06 86.32 81.83 71.58 62.57 45.00 66.81
1959 47.32 52.36 58.65 70.20 81.45 84.69 a 88.58 89.03 82.97 a 71.81 56.27 51.10 b 69.54
1960 47.10 43.72 43.48 d 73.73 76.32 85.50 87.41 b 91.09 i 84.04 b 72.84 60.50 43.06 65.25
1961 40.42 54.21 58.23 61.47 71.16 79.53 k 84.89 d 86.54 c 83.33 c 74.36 f 62.06 n 47.37 d 65.29
1962 42.90 55.07 52.19 64.33 86.48 84.74 g ----- z 89.97 79.23 73.13 54.87 44.97 64.31
1963 39.29 42.61 63.26 71.70 76.45 85.30 86.16 86.55 81.40 80.48 59.37 36.71 67.44
1964 47.06 44.90 57.81 71.90 79.42 87.30 87.65 86.61 83.43 70.87 65.10 51.19 69.44
1965 50.13 51.71 52.58 74.20 82.32 83.50 86.71 89.68 83.70 72.32 63.55 a 53.74 70.35
1966 40.39 ----- z 62.03 a 67.33 75.90 85.47 90.97 84.23 77.43 68.19 59.47 47.32 68.98
1967 49.16 46.14 66.06 73.60 74.45 83.83 82.81 80.39 77.40 70.84 53.43 52.13 67.52
1968 41.61 41.76 59.26 70.00 75.23 84.83 87.19 89.06 81.43 70.10 56.03 46.16 66.89
1969 43.23 45.96 51.55 70.37 78.81 84.57 90.39 87.26 79.73 70.06 54.17 43.39 66.62
1970 40.19 47.93 55.39 72.67 81.10 82.47 86.55 86.81 85.73 70.48 55.40 53.94 68.22
1971 44.42 48.11 56.13 71.83 74.65 87.93 84.87 84.45 82.77 77.48 59.33 56.96 c 69.08
1972 48.23 46.90 57.19 69.43 76.52 82.33 85.97 85.61 83.60 67.10 52.50 47.06 66.87
1973 43.16 45.50 64.13 63.67 72.71 85.27 87.35 85.77 83.87 75.06 59.43 48.42 67.86
1974 48.55 50.43 62.23 69.03 75.90 78.40 87.29 85.06 74.07 69.00 57.93 46.90 67.07
1975 50.00 48.25 52.74 64.83 78.29 84.27 87.61 87.26 75.00 70.90 60.13 48.17 b 67.29
1976 42.30 a 57.14 63.19 70.07 a 71.45 81.27 85.52 83.06 78.30 63.77 49.87 46.45 66.03
1977 29.94 47.75 63.84 73.07 80.90 85.53 91.42 87.06 83.24 a 65.87 a 58.30 45.32 67.69
1978 32.74 34.32 52.87 72.64 b 74.87 86.00 88.03 88.13 83.90 a 70.40 a 62.87 50.13 66.41
1979 33.42 39.67 a 59.48 68.76 m 77.08 e 83.80 83.52 85.35 77.77 69.13 a 58.57 49.94 65.25
1980 43.97 43.03 56.55 b 67.54 d 76.71 83.70 91.35 91.23 84.30 69.90 58.60 50.39 68.11
1981 41.90 53.67 d 57.84 f 75.33 73.60 a 84.97 87.74 84.81 78.90 67.57 c 60.28 a 45.63 d 68.58
1982 41.03 47.04 62.87 64.27 81.65 81.70 89.00 84.68 80.30 70.52 62.70 53.39 68.26
1983 43.87 51.21 58.84 f 63.80 ----- z 83.57 92.00 ----- z 84.03 73.74 60.73 40.29 65.92
1984 42.03 56.10 55.55 67.50 74.23 88.27 86.19 86.35 80.90 73.94 ----- z 56.94 69.82
1985 39.20 a 44.29 64.03 73.73 78.19 86.30 90.53 a 86.81 83.13 74.84 64.70 43.35 69.09
1986 47.71 50.96 62.39 75.00 78.93 a 86.67 93.81 87.19 83.07 70.29 53.93 46.45 69.70
1987 41.87 48.21 61.68 67.77 84.13 87.07 89.48 90.29 82.90 66.90 62.77 50.94 69.50
1988 41.87 45.46 e 58.97 70.70 78.81 88.43 90.26 89.45 80.30 63.13 62.00 d 51.68 68.42
1989 51.65 41.26 a 60.13 68.73 74.32 81.67 86.71 87.16 78.33 71.39 58.90 35.55 66.32
1990 51.87 55.86 59.19 67.40 72.74 86.03 89.16 88.03 83.90 69.06 63.93 52.13 69.94
1991 43.39 50.68 59.61 70.87 80.00 84.40 88.97 88.55 81.47 71.10 54.13 49.94 68.59
1992 45.39 53.41 58.32 68.23 74.13 80.07 87.42 81.68 78.80 68.84 56.90 44.58 66.48
1993 46.77 48.15 a 52.42 65.53 76.81 83.77 92.45 89.19 79.37 67.29 55.03 45.65 66.87
1994 36.13 50.25 58.16 71.77 72.87 85.83 85.35 85.03 77.90 70.55 62.97 50.94 67.31
1995 44.42 47.86 62.52 70.30 76.03 83.43 89.03 91.74 79.57 69.68 51.27 44.87 67.56
1996 42.94 49.69 53.47 a 65.43 79.61 83.83 85.94 86.35 78.63 69.90 51.80 51.48 66.59
1997 43.48 51.89 61.97 63.77 72.06 78.60 88.68 85.87 80.80 69.39 51.23 45.39 66.09
1998 48.90 50.43 55.32 66.07 79.48 85.40 86.42 87.65 88.10 75.19 61.80 50.23 69.58
1999 49.55 52.93 ----- z 71.23 77.81 83.73 89.94 90.32 86.53 72.16 65.10 50.16 71.77
2000 44.68 54.34 63.39 65.07 78.71 85.23 88.29 88.13 79.97 74.74 56.10 35.52 67.85
2001 40.77 51.50 51.97 72.69 a 78.06 82.53 86.90 87.10 79.43 69.48 65.80 52.87 68.26
2002 47.97 49.71 56.97 70.70 73.84 85.20 88.06 89.19 83.63 67.10 53.43 44.74 67.55
2003 38.55 42.43 60.00 69.50 74.94 79.47 85.55 86.68 78.13 68.87 60.87 47.13 66.01
2004 44.58 46.66 61.52 66.90 79.68 82.70 84.87 81.58 79.27 70.26 60.83 50.44 o 68.99
2005 48.16 50.79 54.23 69.37 74.94 84.20 87.94 89.32 83.80 69.74 60.87 42.29 67.97
2006 53.58 45.89 58.45 73.13 73.55 ----- z 89.42 88.23 76.17 65.74 55.23 52.13 66.50
2007 47.00 40.79 68.03 a 66.00 82.06 87.90 87.68 96.35 85.57 74.32 58.07 c 51.06 70.40
2008 42.23 48.69 57.39 66.77 74.42 86.68 e 88.06 86.03 82.33 69.71 54.90 46.97 67.01
2009 40.19 51.43 58.77 a 67.20 73.52 86.43 82.87 84.87 78.37 64.03 60.93 44.65 66.10
2010 38.42 38.89 55.71 74.07 77.42 90.03 91.48 90.65 84.70 74.71 60.60 38.61 67.94
2011 39.10 50.00 b 58.90 71.87 74.87 86.59 a 91.00 a 90.06 78.00 69.37 a 62.44 c 50.58 68.57
2012 51.26 52.69 71.16 71.76 a 81.14 x ----- z ----- z ----- z ----- z ----- z ----- z ----- z 61.72
Period of Record Statistics
MEAN 43.84 48.41 58.49 69.39 77.01 84.60 88.08 87.36 81.36 70.50 58.60 47.90 67.93
S.D. 4.81 4.99 4.84 3.38 3.30 2.41 2.42 2.76 3.12 3.32 3.99 4.97 1.30
SKEW -0.44 -0.49 -0.22 -0.26 0.48 -0.52 0.05 0.14 0.01 0.28 -0.24 -0.48 0.29
MAX 53.58 57.14 71.16 75.33 86.48 90.03 93.81 96.35 88.80 80.48 65.80 57.65 70.54
MIN 29.94 34.32 43.48 61.47 71.16 78.40 82.81 80.39 74.07 63.13 49.87 35.52 66.01
NO YRS 57 56 54 56 55 53 56 55 57 56 55 56 45