ROANOKE WSO AIRPORT, VIRGINIA

Monthly Average Temperature (Degrees Fahrenheit)

(447285)

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
1948 ----- z ----- z ----- z ----- z ----- z ----- z ----- z 72.81 66.45 54.06 49.22 40.45 56.60
1949 44.77 44.14 46.10 53.29 a 65.02 73.65 77.26 73.16 64.85 61.48 47.13 40.37 57.60
1950 47.53 40.25 42.58 53.65 65.23 a 71.35 73.16 72.26 65.77 60.89 43.22 34.53 55.87
1951 38.44 39.75 45.40 54.45 64.23 72.83 76.03 75.66 68.12 60.27 41.18 38.37 56.23
1952 42.11 41.95 45.10 56.30 65.15 77.77 78.31 73.34 66.82 54.42 47.45 39.45 57.35
1953 41.45 42.54 47.61 55.22 70.87 74.55 78.34 76.76 68.80 60.84 47.65 39.13 58.65
1954 37.35 43.89 45.53 60.53 60.68 73.48 77.53 75.69 71.85 59.23 43.03 36.92 57.14
1955 35.31 39.35 a 48.34 60.12 67.69 68.00 79.77 77.13 68.72 58.10 44.53 34.15 56.77
1956 35.31 41.97 45.92 53.58 65.69 72.23 76.24 75.68 66.77 58.92 45.58 47.81 57.14
1957 35.71 43.36 45.40 59.75 67.61 73.70 76.44 73.66 68.53 53.45 48.12 41.05 57.23
1958 33.35 31.80 41.29 55.82 64.61 71.78 78.15 75.02 68.13 57.00 50.33 34.18 55.12
1959 35.97 40.88 45.45 58.50 68.73 73.73 77.08 79.05 70.30 59.55 44.75 41.08 57.92
1960 38.00 36.52 33.97 60.13 63.16 73.02 75.87 77.69 69.62 58.74 47.70 32.34 55.56
1961 33.18 41.11 50.05 51.00 61.44 71.30 76.56 75.56 71.88 58.27 49.23 37.19 56.40
1962 35.63 40.12 43.50 53.75 69.92 72.37 74.16 74.34 64.82 59.37 45.00 33.32 55.53
1963 32.89 31.96 49.66 58.60 64.42 72.85 74.94 73.85 65.98 60.47 48.57 30.47 55.39
1964 37.31 35.53 46.47 56.83 67.31 74.62 75.85 73.95 66.82 54.00 51.13 39.98 56.65
1965 35.97 36.39 41.89 54.90 69.19 69.72 73.84 74.19 69.65 55.92 47.47 41.52 55.89
1966 30.55 35.05 46.66 51.45 63.26 71.08 77.82 73.02 66.02 54.56 47.17 37.76 54.53
1967 40.81 34.79 48.45 58.98 58.97 70.23 73.39 72.58 63.22 54.68 43.33 41.32 55.06
1968 32.98 33.76 51.27 56.48 62.37 71.25 75.61 75.24 66.72 57.40 48.05 33.68 55.40
1969 32.29 37.21 40.65 57.27 65.02 73.07 75.94 73.47 66.65 56.56 44.53 33.60 54.69
1970 29.74 36.82 42.44 56.52 66.74 72.85 76.11 74.03 72.58 59.66 46.28 39.97 56.15
1971 33.84 39.09 43.58 55.42 61.47 72.62 73.52 72.56 69.80 62.06 45.33 45.27 56.21
1972 39.56 35.97 45.58 55.50 61.98 67.63 74.29 73.16 67.58 52.13 45.40 44.52 55.28
1973 37.24 35.73 51.02 53.80 61.08 73.75 75.45 75.95 70.73 59.16 49.33 38.11 56.78
1974 45.21 38.98 50.74 57.15 64.29 68.10 74.48 73.42 64.78 54.95 47.25 38.90 56.52
1975 39.58 40.38 42.19 52.87 66.45 71.50 74.47 76.98 66.53 59.95 51.07 38.74 56.73
1976 33.37 46.74 50.81 57.40 62.24 70.02 73.92 72.08 65.13 50.23 40.18 34.24 54.70
1977 23.61 36.62 52.52 58.85 68.05 71.12 79.69 77.73 70.38 53.56 48.52 35.84 56.37
1978 27.79 29.46 44.15 56.27 63.71 72.68 75.98 77.44 71.38 53.98 49.43 39.50 55.15
1979 31.34 29.34 48.63 55.67 63.79 69.32 73.45 73.98 66.32 54.61 49.57 40.90 54.74
1980 37.42 34.00 43.52 56.70 64.77 70.02 78.05 76.79 71.47 55.42 45.38 38.68 56.02
1981 31.98 38.18 43.10 58.53 60.92 73.97 76.08 73.37 66.10 53.66 45.17 32.79 54.49
1982 28.65 37.84 44.82 50.77 67.48 70.12 75.45 72.32 65.73 57.39 47.78 42.34 55.06
1983 35.61 36.48 46.95 52.37 61.02 70.05 77.02 77.90 68.10 57.10 47.07 34.92 55.38
1984 33.53 43.59 43.34 54.22 63.10 74.20 73.18 74.37 64.08 64.27 46.00 47.08 56.75
1985 31.24 38.57 50.21 61.82 67.05 72.63 76.47 73.81 68.35 60.32 55.42 35.13 57.58
1986 35.19 38.32 47.13 58.77 63.85 74.13 78.81 72.39 68.92 58.94 47.37 38.48 56.86
1987 34.16 36.86 46.60 53.23 67.10 74.93 79.24 77.79 68.85 51.45 49.57 41.42 56.77
1988 30.74 37.91 47.48 55.33 63.34 70.93 77.05 77.45 65.97 51.18 46.68 38.85 55.24
1989 41.34 38.20 47.35 54.25 61.15 73.68 75.89 74.05 68.05 58.40 46.02 29.53 55.66
1990 43.61 45.86 51.48 56.00 64.23 72.55 76.84 74.55 68.32 59.19 52.12 43.74 59.04
1991 39.31 42.66 49.18 57.50 69.60 73.52 77.85 74.77 69.32 59.39 46.80 42.32 58.52
1992 39.56 41.47 46.48 55.48 60.16 68.37 76.94 72.06 67.92 55.48 46.32 38.48 55.73
1993 39.68 35.93 42.11 54.50 65.60 71.92 80.24 76.82 68.53 55.34 47.28 36.18 56.18
1994 30.52 39.38 46.69 60.92 60.53 75.05 77.53 73.92 66.85 56.63 51.38 42.94 56.86
1995 38.48 36.88 50.06 56.78 64.32 71.98 76.90 78.52 67.42 58.47 43.17 35.47 56.54
1996 33.61 38.21 41.61 56.30 65.16 72.75 74.40 73.37 66.08 57.94 40.97 40.13 55.04
1997 35.76 42.95 49.66 52.47 60.27 69.18 76.10 73.37 67.73 56.24 43.60 38.27 55.47
1998 41.18 42.23 45.76 56.50 67.11 73.47 77.45 75.87 73.57 59.02 48.92 43.37 58.70
1999 39.79 42.00 43.94 58.13 64.08 a 72.25 79.15 75.44 66.40 55.73 52.88 a 42.47 57.69
2000 35.32 43.43 51.68 54.86 a 67.63 73.78 73.29 72.85 65.87 59.37 44.15 30.43 b 56.06
2001 36.94 42.88 43.35 59.45 64.79 73.32 74.31 76.85 66.45 56.90 53.10 a 43.43 c 57.65
2002 41.95 40.88 48.16 58.77 63.95 74.48 78.00 76.95 70.67 57.61 46.22 37.68 57.94
2003 33.06 35.66 49.58 56.82 62.55 69.53 75.13 76.35 66.72 56.10 52.20 37.89 55.97
2004 34.61 38.47 50.15 58.08 70.76 72.25 76.50 73.39 69.10 59.31 51.37 39.47 57.79
2005 40.50 41.66 44.06 56.72 62.23 72.73 77.76 77.60 71.15 60.19 49.85 36.84 57.61
2006 43.52 39.55 48.61 60.83 63.34 72.22 77.53 78.34 65.15 55.42 50.30 45.05 58.32
2007 41.21 34.21 53.16 55.95 67.56 74.42 75.66 82.15 71.50 63.55 48.30 43.40 59.26
2008 37.50 41.62 49.39 56.98 64.19 75.90 76.06 74.15 69.65 58.16 45.95 41.82 57.61
2009 35.90 42.18 48.32 57.48 65.35 74.08 73.31 76.06 68.77 57.26 51.50 37.27 57.29
2010 33.52 33.09 49.76 60.87 67.82 78.15 79.31 77.18 71.20 60.58 47.23 31.32 57.50
2011 34.66 43.23 47.45 60.08 66.05 75.83 80.21 77.76 68.78 56.85 50.50 43.92 58.78
2012 41.40 44.28 57.37 58.03 a 69.61 v ----- z ----- z ----- z ----- z ----- z ----- z ----- z 50.27
Period of Record Statistics
MEAN 36.40 38.91 46.74 56.49 64.72 72.45 76.37 75.16 68.04 57.36 47.46 38.68 56.54
S.D. 4.57 3.85 3.74 2.60 2.80 2.18 1.90 2.12 2.27 2.93 3.09 4.15 1.23
SKEW -0.02 -0.35 -0.26 -0.10 0.17 0.00 0.11 0.66 0.30 -0.19 0.01 -0.14 0.33
MAX 47.53 46.74 57.37 61.82 70.87 78.15 80.24 82.15 73.57 64.27 55.42 47.81 59.26
MIN 23.61 29.34 33.97 50.77 58.97 67.63 73.16 72.06 63.22 50.23 40.18 29.53 54.49
NO YRS 64 64 64 64 63 63 63 64 64 64 64 64 63