JOHN H KERR DAM, VIRGINIA

Monthly Average Minimum Temperature (Degrees Fahrenheit)

(444414)

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 40.19 47.40 55.81 63.57 67.97 64.06 57.67 43.68 41.13 30.26 51.17
1949 37.39 35.93 36.19 46.30 56.71 65.83 73.29 71.26 59.07 c 49.23 34.83 a 30.81 49.74
1950 38.81 31.25 33.39 42.93 56.03 61.77 67.03 64.71 58.47 50.42 32.60 24.90 46.86
1951 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 33.67 30.16 31.91
1952 33.52 31.28 35.26 45.73 54.87 65.77 68.61 65.90 58.17 41.61 36.43 30.48 47.30
1953 33.55 32.82 36.84 46.27 61.29 63.55 a 67.71 65.35 55.79 b ----- z 36.13 32.19 48.32
1954 28.35 31.61 37.23 50.37 52.87 62.70 66.00 65.48 60.33 50.32 35.23 26.39 47.24
1955 25.90 25.79 39.10 48.63 56.35 56.07 69.43 a 68.35 61.20 47.48 34.83 24.06 46.43
1956 24.35 31.10 35.29 44.90 55.10 63.27 67.77 66.26 58.47 51.39 36.23 38.61 47.73
1957 28.32 33.36 36.84 49.67 57.74 65.97 65.29 62.90 62.90 42.23 37.50 30.13 47.74
1958 21.71 22.07 32.40 a 44.97 56.19 62.17 70.42 65.81 55.83 45.77 39.80 22.58 44.98
1959 24.68 29.82 34.26 47.33 57.94 60.93 67.19 66.45 56.50 49.16 35.66 a 30.23 46.68
1960 30.81 28.69 25.71 48.40 54.45 63.80 65.83 a 67.10 a 57.67 46.48 35.27 22.26 45.54
1961 21.55 30.71 38.97 42.30 51.71 61.83 67.26 66.48 62.07 43.58 38.30 29.84 46.22
1962 24.68 30.11 33.42 44.63 58.19 63.70 65.13 63.39 55.93 49.13 36.37 25.81 45.87
1963 22.00 21.86 38.42 44.53 52.19 61.37 63.26 62.90 53.63 43.10 37.47 21.55 43.52
1964 24.94 27.72 37.00 45.83 54.77 63.07 67.58 63.52 56.17 41.26 37.70 31.77 45.94
1965 24.71 27.96 33.45 42.70 58.29 62.04 b 66.61 ----- z 60.63 44.74 36.00 28.19 44.12
1966 22.17 b 26.50 35.13 a 43.67 54.19 60.37 64.94 64.97 54.50 40.19 35.00 28.32 44.16
1967 29.84 24.36 34.94 45.30 48.87 59.00 65.39 63.29 50.47 41.50 a 29.87 30.16 43.58
1968 21.52 20.41 36.16 43.70 51.32 60.67 65.43 a 64.83 a 51.27 44.90 36.83 22.87 43.33
1969 19.97 25.50 27.35 45.43 52.58 65.47 68.16 61.52 54.20 43.48 31.25 b 27.53 a 43.54
1970 21.61 28.36 33.71 44.57 57.06 63.83 67.48 65.61 c 61.47 48.48 39.48 a 29.48 b 46.76
1971 24.94 27.11 33.52 39.57 49.71 62.77 64.26 64.48 61.67 56.45 36.67 37.84 46.58
1972 30.97 27.14 37.13 43.53 53.29 58.63 66.81 65.23 59.90 44.84 36.20 35.90 46.63
1973 27.06 26.18 42.10 45.87 51.94 66.13 66.94 66.39 60.53 46.48 38.00 a 30.65 47.36
1974 36.97 29.79 38.84 46.27 55.81 60.13 66.55 67.32 58.50 42.42 ----- z 32.67 a 48.66
1975 29.81 33.68 36.26 41.57 57.87 64.07 66.68 c 66.16 58.43 48.35 40.50 28.74 47.68
1976 25.73 a 34.72 40.32 43.40 53.71 63.77 64.77 63.94 54.63 42.29 30.27 25.10 45.22
1977 16.81 24.80 c 37.71 ----- z ----- z ----- z ----- z 67.90 61.97 44.39 41.23 28.94 40.47
1978 23.00 20.57 33.35 44.23 51.58 60.90 64.48 67.06 60.93 42.81 40.50 30.58 45.00
1979 25.68 20.32 34.55 44.50 52.35 56.73 63.52 64.23 58.20 43.65 38.27 31.03 44.42
1980 29.00 22.55 31.58 44.10 53.61 59.53 67.26 67.26 62.40 45.84 33.33 28.19 45.39
1981 20.87 26.93 29.65 45.30 49.61 65.93 66.23 61.71 55.63 42.06 36.23 27.42 43.96
1982 21.81 30.64 35.52 41.13 54.77 62.60 68.16 64.26 58.07 47.32 38.13 36.23 46.55
1983 ----- z 27.18 38.06 42.80 51.84 60.43 65.39 65.77 56.87 48.06 38.10 28.16 47.52
1984 22.71 30.86 32.81 44.13 52.42 64.13 66.94 66.68 55.53 55.39 33.90 34.87 46.70
1985 25.42 29.18 35.19 45.83 54.68 60.17 66.61 64.81 57.77 51.10 48.27 27.74 47.23
1986 26.13 32.25 33.52 44.77 52.35 62.83 67.71 64.77 59.53 50.29 42.30 29.84 47.19
1987 26.06 24.86 31.68 42.20 55.90 63.67 68.10 67.81 62.53 38.58 38.97 33.81 46.18
1988 22.58 27.66 34.23 41.70 51.84 58.70 66.84 67.94 57.50 40.19 35.43 28.06 44.39
1989 30.48 30.79 35.39 42.30 50.65 65.87 67.10 67.23 60.70 47.29 40.27 22.45 46.71
1990 33.77 35.07 42.10 45.37 55.81 62.73 69.48 67.32 58.43 48.94 37.20 36.71 49.41
1991 30.94 32.64 39.77 48.80 61.03 63.73 70.81 68.23 59.60 46.35 37.20 34.03 49.43
1992 31.42 32.52 37.06 45.17 51.84 61.10 70.35 64.23 61.03 44.29 41.57 32.13 47.73
1993 32.65 27.18 35.23 43.57 57.71 63.57 71.00 67.65 62.90 45.87 39.27 30.29 48.07
1994 24.42 29.50 37.52 48.37 51.81 66.93 72.06 ----- z 57.40 44.77 42.40 35.16 46.39
1995 31.77 30.18 37.74 45.07 55.97 64.53 70.45 69.32 60.23 49.13 36.77 27.61 48.23
1996 27.16 30.45 33.71 47.20 56.39 65.27 68.77 66.39 61.17 49.42 34.00 34.00 47.83
1997 28.81 34.68 40.13 41.83 49.23 60.50 67.55 64.19 58.33 45.77 35.40 29.35 46.31
1998 32.45 32.18 37.29 45.70 57.71 65.67 68.32 66.55 62.43 46.55 35.87 34.42 48.76
1999 30.42 29.43 32.65 45.53 52.97 62.33 69.87 68.26 58.80 44.42 40.50 30.26 47.12
2000 24.10 29.62 39.03 45.33 57.29 66.57 66.48 66.00 59.53 44.32 34.63 21.77 46.22
2001 25.03 30.93 33.68 45.77 54.06 64.97 64.48 68.23 55.80 41.94 38.10 34.87 46.49
2002 29.19 28.82 36.39 47.97 54.32 63.93 69.06 67.58 62.23 52.13 38.13 28.35 48.18
2003 24.06 28.75 37.06 45.07 55.65 63.23 69.39 69.04 f 57.60 45.71 42.23 28.68 45.22
2004 23.97 27.48 38.32 47.40 62.94 65.80 69.65 66.97 61.90 51.13 41.97 30.23 48.98
2005 30.19 ----- z 35.06 46.30 52.71 64.73 72.65 69.77 63.07 51.10 39.30 29.03 50.36
2006 35.42 30.14 36.32 47.20 52.26 64.67 70.23 71.58 59.43 46.16 39.93 33.13 48.87
2007 32.90 24.64 37.23 44.83 56.10 65.57 67.42 71.00 61.47 53.39 37.63 35.19 48.95
2008 27.94 32.69 36.81 47.13 54.26 67.30 68.90 66.58 62.50 45.19 37.30 34.13 48.39
2009 26.68 29.79 37.16 47.27 58.97 66.67 68.68 71.74 60.93 48.23 42.07 29.35 48.96
2010 25.68 26.82 37.35 47.70 60.06 71.57 72.26 71.32 63.67 ----- z 36.17 25.35 48.90
2011 25.77 30.18 37.29 51.57 59.06 68.90 72.87 a 70.23 65.20 48.97 41.33 34.90 b 50.52
2012 32.55 b 33.76 46.42 48.00 60.09 t ----- z ----- z ----- z ----- z ----- z ----- z ----- z 40.18
Period of Record Statistics
MEAN 27.32 28.90 36.00 45.35 54.78 63.29 67.79 66.40 59.01 46.39 37.51 29.93 46.77
S.D. 4.69 3.71 3.31 2.33 3.07 2.81 2.32 2.39 3.03 3.78 3.23 4.07 1.74
SKEW 0.35 -0.49 -0.17 0.12 0.33 -0.05 0.40 0.37 -0.52 0.37 0.28 -0.11 -0.16
MAX 38.81 35.93 46.42 51.57 62.94 71.57 73.29 71.74 65.20 56.45 48.27 38.61 50.52
MIN 16.81 20.32 25.71 39.57 48.87 56.07 63.26 61.52 50.47 38.58 29.87 21.55 43.33
NO YRS 62 62 64 63 62 62 62 60 63 61 63 64 53