PORTLAND 2, TENNESSEE

Monthly Average 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 73.37 o 80.89 79.31 75.67 60.07 a 46.63 39.06 63.60
1956 35.44 45.91 49.08 56.68 69.08 74.73 79.03 a 77.45 70.27 63.44 47.55 49.10 59.81
1957 37.35 46.70 47.16 61.93 68.00 a 76.20 77.79 76.24 70.73 56.11 49.13 45.35 59.39
1958 35.31 30.04 42.63 58.43 66.89 74.03 78.48 75.71 70.93 59.34 51.47 34.74 56.50
1959 36.69 41.79 47.63 59.23 70.92 73.95 a 77.61 78.65 72.17 a 61.39 45.55 42.98 b 59.05
1960 39.95 35.71 34.09 d 61.65 64.61 74.43 76.41 b 79.11 i 72.14 b 61.10 49.02 33.94 54.82
1961 31.13 44.29 50.24 51.80 61.23 69.61 k 74.89 d 74.70 c 69.44 d 57.52 j 48.85 q 37.33 e 55.00
1962 32.58 42.29 41.98 52.48 72.37 72.57 g ----- z 76.19 66.85 61.19 44.73 33.23 52.39
1963 27.89 30.45 51.18 59.30 64.16 73.07 74.34 73.44 67.02 62.89 46.82 26.52 54.75
1964 34.52 33.88 45.44 59.85 66.48 a 74.15 75.05 74.03 68.95 55.06 51.05 40.53 56.58
1965 38.55 39.30 42.18 61.35 69.89 72.58 75.10 75.82 71.57 56.79 50.03 a 43.08 58.02
1966 30.37 ----- z 48.93 a 56.92 63.92 71.35 78.66 73.26 66.12 53.84 48.38 37.29 57.19
1967 39.31 34.93 53.92 61.62 63.73 72.78 72.66 69.95 65.02 58.48 43.17 42.37 56.49
1968 32.61 31.24 47.27 58.32 64.42 73.22 75.52 77.18 68.58 58.13 47.42 36.60 55.88
1969 34.18 37.61 40.44 58.78 66.42 73.33 78.94 74.40 67.77 58.32 43.00 33.53 55.56
1970 28.84 36.95 44.45 59.85 67.31 71.40 74.03 75.44 74.00 58.55 45.25 42.60 56.55
1971 34.74 38.27 43.69 56.80 61.89 75.90 74.35 73.24 71.78 64.90 47.72 47.50 c 57.57
1972 37.77 36.76 46.50 58.48 65.19 70.43 75.65 74.32 72.27 55.00 43.83 38.40 56.22
1973 33.27 35.62 53.58 54.58 61.48 75.02 77.02 74.85 72.70 62.35 50.17 38.79 57.45
1974 41.44 39.79 51.52 56.22 66.00 68.63 75.73 74.82 64.52 55.23 47.75 38.11 56.65
1975 39.31 39.50 42.77 53.50 67.61 73.38 75.94 77.40 64.77 59.47 49.58 39.86 c 56.92
1976 32.03 a 44.59 51.87 56.21 b 60.06 71.57 74.71 71.95 66.58 52.31 38.90 35.08 54.66
1977 19.94 36.11 51.71 61.18 69.11 74.13 79.55 76.95 72.32 b 53.85 a 49.42 36.13 56.70
1978 24.18 24.41 43.40 60.43 b 64.58 74.63 77.66 76.56 72.33 a 56.15 a 51.48 39.11 55.41
1979 25.32 29.43 a 48.42 55.97 n 65.50 h 72.60 75.40 74.87 67.55 57.93 a 47.62 40.24 53.94
1980 36.74 33.36 45.78 b 54.83 g 65.26 72.75 80.40 79.84 72.18 55.77 46.23 39.13 57.04
1981 30.47 41.22 e 46.24 f 63.00 61.60 a 75.07 76.90 73.92 65.80 55.28 d 48.64 b 35.67 d 57.05
1982 29.84 38.00 50.94 52.98 70.06 70.03 78.18 74.00 67.78 58.58 50.84 a 40.50 d 56.81
1983 36.19 42.11 46.43 h 54.00 b ----- z 74.12 80.90 ----- z 71.03 62.29 49.48 30.97 55.68
1984 30.94 44.72 45.08 56.83 62.37 76.30 75.37 75.69 68.10 63.42 ----- z 47.47 58.75
1985 29.20 a 34.32 51.05 a 61.35 67.89 75.53 78.85 a 76.69 70.58 61.55 55.22 32.55 57.90
1986 35.73 42.04 49.13 61.45 67.78 a 76.65 82.61 75.95 73.57 59.82 46.12 a 38.11 59.08
1987 34.02 40.25 50.19 56.02 73.82 a 76.83 79.52 79.50 71.02 53.47 52.27 40.87 d 58.98
1988 33.44 35.00 j 48.32 57.88 66.14 b 75.87 79.69 79.93 a 70.42 51.63 a 49.89 g 38.65 a 60.20
1989 42.52 b 33.85 a 49.15 57.29 a 64.63 73.00 77.66 76.98 68.88 59.60 48.72 26.35 56.55
1990 43.11 46.11 50.24 55.85 63.47 75.47 78.40 77.11 72.48 58.34 53.52 42.24 59.70
1991 35.94 40.71 50.15 61.65 71.56 75.60 79.37 77.50 71.43 60.16 45.30 41.31 59.22
1992 36.97 43.84 48.32 57.82 64.18 70.95 78.65 72.77 69.58 57.31 48.45 37.73 57.21
1993 38.79 37.33 a 44.08 55.03 66.76 74.27 82.19 78.52 68.87 57.29 46.23 38.50 57.32
1994 29.26 40.18 47.92 60.93 62.35 76.50 77.02 75.29 67.37 60.06 53.38 43.24 57.79
1995 36.48 36.93 51.84 58.93 66.58 73.68 79.15 81.65 69.10 59.05 42.05 36.58 57.67
1996 34.40 38.95 42.90 a 54.97 69.98 74.43 76.69 76.66 68.60 59.56 43.75 42.29 56.93
1997 34.61 43.96 51.24 52.98 62.00 71.45 78.06 75.97 70.15 59.08 44.27 38.55 56.86
1998 42.24 43.68 47.24 56.87 70.40 76.28 78.77 78.00 76.32 63.66 51.32 42.32 60.59
1999 40.29 43.25 ----- z 60.87 67.47 75.40 81.16 78.48 72.27 58.84 53.87 40.94 61.17
2000 36.39 43.84 51.58 54.50 68.39 75.28 a 77.65 77.76 69.62 62.85 46.97 a 27.18 57.67
2001 32.42 42.45 42.37 63.13 d 68.10 72.53 77.58 78.08 68.72 57.17 b 52.78 43.95 58.27
2002 38.68 39.93 46.18 59.70 63.82 75.88 79.26 78.92 73.35 59.32 44.77 37.13 58.08
2003 29.15 35.00 49.31 58.52 66.52 70.25 77.03 77.45 68.32 58.34 51.47 38.52 56.65
2004 34.60 36.64 51.06 56.65 70.63 73.93 76.05 72.56 69.77 61.71 52.03 41.72 o 59.60
2005 40.97 42.45 44.06 58.75 63.45 74.70 79.29 79.56 73.38 59.18 49.80 34.35 58.33
2006 44.06 36.52 47.92 62.47 63.74 ----- z 79.29 79.27 66.95 55.85 45.85 42.16 56.74
2007 39.21 32.11 55.65 a 55.32 70.21 76.42 77.47 84.52 74.77 64.71 47.44 c 42.81 60.05
2008 33.61 39.00 47.26 56.12 63.90 76.46 e 77.89 75.97 72.05 58.56 45.35 37.23 56.95
2009 31.74 40.71 49.17 a 56.90 65.63 77.10 74.35 75.90 70.48 55.15 50.75 36.85 57.06
2010 30.10 31.64 46.66 61.75 68.94 80.20 81.48 80.58 72.35 60.92 49.75 30.79 57.93
2011 31.52 40.40 b 49.37 60.10 65.66 76.41 a 81.40 a 79.00 68.82 58.42 a 53.04 c 41.98 58.84
2012 40.76 43.03 59.97 60.52 a 71.21 x ----- z ----- z ----- z ----- z ----- z ----- z ----- z 51.07
Period of Record Statistics
MEAN 34.69 38.62 47.86 58.12 66.27 74.17 77.74 76.56 70.11 58.73 48.25 38.54 57.50
S.D. 4.91 4.85 4.26 2.94 3.15 2.17 2.26 2.61 2.71 3.09 3.39 4.83 1.39
SKEW -0.42 -0.56 -0.28 -0.24 0.22 -0.18 0.02 0.24 -0.01 -0.13 -0.23 -0.47 0.16
MAX 44.06 46.70 59.97 63.13 73.82 80.20 82.61 84.52 76.32 64.90 55.22 49.10 60.59
MIN 19.94 24.41 34.09 51.80 60.06 68.63 72.66 69.95 64.52 51.63 38.90 26.35 54.66
NO YRS 57 55 54 55 54 53 56 55 57 56 54 56 43