NORFOLK WSO AIRPORT, VIRGINIA

Monthly Average Minimum Temperature (Degrees Fahrenheit)

(446139)

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
1946 34.19 35.11 46.65 46.93 58.68 63.73 68.48 66.90 64.70 55.55 47.97 37.52 52.20
1947 39.68 26.39 34.00 48.50 57.52 63.72 a 67.42 71.00 67.00 57.81 43.27 33.35 50.80
1948 27.03 32.66 43.42 48.20 57.48 65.40 70.06 67.87 63.17 50.71 48.37 37.52 50.99
1949 40.74 39.71 39.61 48.57 56.10 67.57 72.84 70.74 62.87 56.84 41.33 37.52 52.87
1950 44.06 35.64 37.26 45.20 56.45 64.37 69.29 67.10 64.17 56.42 39.40 31.03 50.87
1951 34.32 33.89 39.10 46.60 54.65 64.60 69.39 70.07 b 63.10 56.74 40.13 36.35 50.75
1952 36.00 35.31 39.16 50.17 57.68 68.67 71.16 69.77 64.13 47.87 41.93 35.70 a 51.46
1953 37.48 37.14 42.45 48.77 62.19 64.90 71.45 68.52 63.33 54.90 41.83 36.74 52.48
1954 32.68 37.18 39.39 49.93 55.03 66.07 69.19 69.19 64.27 54.94 42.00 32.71 51.05
1955 31.32 31.00 42.16 50.37 58.17 a 62.70 72.61 72.35 65.87 52.48 40.20 30.26 50.79
1956 30.71 37.14 38.68 46.17 53.26 66.33 69.87 68.65 62.93 58.19 43.07 42.97 51.50
1957 31.71 36.71 40.39 51.23 58.68 68.70 68.71 67.52 67.70 50.77 45.70 38.29 52.18
1958 29.48 28.00 36.71 49.03 57.23 62.63 72.45 70.29 61.73 54.39 46.63 29.26 49.82
1959 30.29 34.86 39.45 49.43 59.71 66.57 71.74 70.16 65.80 57.03 42.00 36.32 51.95
1960 34.55 33.03 31.42 52.77 59.42 66.57 68.48 72.52 65.30 53.39 42.63 25.77 50.49
1961 26.45 34.11 43.35 45.67 54.65 63.30 71.19 70.06 67.87 50.55 45.13 33.00 50.44
1962 30.06 32.39 35.94 45.97 58.58 64.87 67.29 68.55 61.13 53.81 43.60 30.10 49.36
1963 29.84 27.29 42.77 50.27 54.65 64.43 67.90 67.90 59.07 51.10 42.67 27.87 48.81
1964 32.87 31.41 39.19 46.03 56.58 63.97 69.81 66.42 62.90 49.58 44.03 38.16 50.08
1965 29.90 31.00 35.35 44.67 59.52 64.40 69.32 68.26 64.93 49.61 41.87 33.90 49.39
1966 28.52 31.43 38.10 45.27 54.29 62.33 68.52 67.74 62.20 49.87 41.10 34.19 48.63
1967 37.52 31.75 38.19 46.83 51.68 62.17 68.84 68.32 58.40 48.74 36.53 34.61 48.63
1968 26.35 24.93 38.84 45.60 54.90 65.77 70.90 72.42 62.53 54.77 44.20 33.06 49.52
1969 31.48 34.61 36.61 50.27 57.97 69.07 72.13 68.68 63.13 55.19 41.43 33.45 51.17
1970 25.81 29.71 37.68 49.00 59.35 66.23 69.81 69.87 65.60 56.29 43.33 39.48 51.01
1971 31.45 34.18 38.32 44.53 55.94 67.70 69.29 67.74 66.23 61.10 43.33 43.55 51.95
1972 38.52 35.07 40.55 45.57 56.10 61.60 69.81 67.77 64.53 52.13 43.80 41.45 51.41
1973 32.52 31.32 44.35 48.57 58.16 69.00 69.77 70.87 66.27 54.97 43.10 37.74 52.22
1974 40.71 34.50 43.58 49.43 57.97 65.00 69.19 70.45 64.00 48.61 44.27 37.45 52.10
1975 36.42 36.82 38.35 43.57 58.81 67.80 70.35 69.68 65.57 55.00 45.63 33.71 51.81
1976 28.45 37.45 43.29 50.40 56.55 67.07 68.84 67.87 61.30 48.74 36.13 31.97 49.84
1977 21.94 30.57 44.87 51.33 58.23 64.93 72.00 71.71 68.03 52.45 47.60 35.48 51.60
1978 29.10 26.29 37.77 48.17 58.13 64.67 67.77 72.06 63.73 50.48 48.43 35.26 50.16
1979 30.84 25.14 38.77 48.30 58.35 61.27 68.94 70.45 66.63 50.26 46.63 36.10 50.14
1980 33.68 26.28 37.39 48.67 58.35 64.67 70.77 71.35 67.57 51.13 39.93 33.65 50.29
1981 23.68 32.86 35.26 50.17 56.45 69.37 71.68 67.52 61.87 50.84 43.43 33.10 49.68
1982 27.00 34.00 39.42 45.20 60.00 65.57 71.10 67.19 62.07 52.03 45.47 41.06 50.84
1983 34.06 33.68 43.10 46.10 56.45 64.07 70.42 69.97 64.73 55.16 42.33 33.48 51.13
1984 27.68 37.14 36.55 46.97 57.97 66.57 69.58 70.77 62.90 59.23 41.03 40.97 51.45
1985 26.61 32.29 42.06 50.63 59.52 65.53 70.52 69.48 64.90 58.10 51.83 32.29 51.98
1986 30.42 34.61 39.13 47.40 58.06 66.20 73.39 69.23 64.33 57.52 47.90 37.35 52.13
1987 32.77 30.39 37.87 46.67 58.26 67.90 73.35 71.97 66.60 46.55 44.23 37.52 51.17
1988 29.74 32.72 39.26 46.93 56.68 63.90 71.32 72.87 63.03 47.52 43.93 32.65 50.05
1989 36.65 35.04 41.10 46.67 55.29 69.73 71.10 71.19 66.87 53.26 43.57 27.03 51.46
1990 36.32 40.07 43.77 48.37 57.39 65.83 72.68 70.97 63.07 56.29 44.23 41.42 53.37
1991 35.26 36.43 43.61 51.67 63.13 67.70 74.52 71.71 63.33 52.32 43.57 37.90 53.43
1992 34.26 36.79 38.71 48.27 54.00 63.30 73.16 68.03 66.83 51.74 45.83 37.42 51.53
1993 36.81 30.68 37.97 47.80 58.32 66.67 74.84 70.13 65.70 52.35 44.90 33.45 51.63
1994 27.74 32.89 41.23 53.43 55.74 70.77 74.74 68.87 63.77 53.13 48.47 42.90 52.81
1995 38.03 33.89 42.26 49.50 58.65 68.00 74.35 72.45 65.07 56.03 39.47 32.03 52.48
1996 30.48 32.34 36.74 48.70 57.55 67.30 70.42 68.61 65.47 53.42 39.07 38.84 50.75
1997 33.39 37.86 42.10 44.97 54.55 63.13 70.94 68.16 64.77 53.81 42.80 35.87 51.03
1998 39.26 40.50 43.19 49.93 59.16 67.90 71.90 72.29 67.43 53.84 43.60 41.26 54.19
1999 36.29 35.93 38.94 48.10 58.52 66.80 73.55 72.42 65.97 53.48 46.80 36.81 52.80
2000 32.87 36.28 43.06 49.03 61.06 67.70 69.55 69.81 65.47 53.42 41.37 30.39 51.67
2001 31.23 35.32 38.58 47.97 57.71 68.77 69.06 71.13 63.20 51.61 46.43 41.10 51.84
2002 35.23 35.68 42.55 53.73 57.87 68.07 72.81 71.74 67.97 58.45 42.50 34.74 53.44
2003 29.29 33.61 42.61 49.37 57.94 67.87 73.00 73.65 67.50 53.52 48.57 35.35 52.69
2004 31.13 34.90 43.58 50.63 63.81 68.13 72.32 69.03 67.13 54.16 44.93 35.74 52.96
2005 33.42 34.43 37.23 48.37 54.16 67.63 73.81 73.42 69.33 57.19 44.43 34.00 52.29
2006 38.74 34.14 40.84 50.93 57.13 66.87 72.74 72.87 62.90 53.13 47.17 37.65 52.93
2007 37.68 29.96 41.35 48.20 56.74 67.10 70.74 71.58 67.03 61.03 43.80 39.87 52.92
2008 34.06 36.93 43.90 51.20 55.32 69.10 70.90 70.90 67.57 51.48 42.00 39.19 52.71
2009 30.06 33.07 39.39 49.27 60.48 68.00 69.32 72.45 65.23 54.48 48.73 36.81 52.28
2010 30.35 29.50 41.45 50.70 61.45 72.13 73.42 73.16 67.07 55.10 44.27 28.26 52.24
2011 29.23 35.21 41.26 53.47 60.06 70.37 73.71 72.87 67.83 53.45 46.73 41.48 53.81
2012 38.00 37.62 49.35 50.72 a 61.22 v ----- z ----- z ----- z ----- z ----- z ----- z ----- z 43.92
Period of Record Statistics
MEAN 32.60 33.53 40.16 48.52 57.58 66.22 70.92 70.11 64.77 53.58 43.83 35.66 51.43
S.D. 4.43 3.50 3.12 2.31 2.28 2.35 1.94 1.90 2.23 3.19 2.97 4.02 1.27
SKEW 0.14 -0.56 0.09 0.10 0.17 0.00 0.16 -0.02 -0.38 0.11 -0.01 -0.20 -0.23
MAX 44.06 40.50 49.35 53.73 63.81 72.13 74.84 73.65 69.33 61.10 51.83 43.55 54.19
MIN 21.94 24.93 31.42 43.57 51.68 61.27 67.29 66.42 58.40 46.55 36.13 25.77 48.63
NO YRS 67 67 67 67 66 66 66 66 66 66 66 66 66