ROCKY KNOB, VIRGINIA

Monthly Average Temperature (Degrees Fahrenheit)

(447330)

File last updated on May 16,
*** Note *** Provisional Data *** After Year/Month 197511
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
1940 ----- z ----- z ----- z ----- z ----- z ----- z 69.81 66.37 61.88 55.85 43.75 40.19 b 56.31
1941 32.00 d 30.00 37.45 57.73 66.33 a 69.28 74.16 74.58 73.03 66.29 n 47.73 40.70 c 54.82
1942 31.29 e 30.59 f 43.44 55.37 62.41 d 68.45 a 71.73 a 67.62 b 63.71 a 54.58 a 45.64 a 32.76 54.27
1943 36.31 34.97 h 41.03 a 48.63 61.33 h 72.33 69.52 a 70.77 61.53 53.33 a 44.35 36.62 a 53.44
1944 36.58 a 40.07 43.82 50.78 65.33 a 68.93 69.95 a 68.50 a 64.02 54.55 a 43.77 33.78 a 53.34
1945 34.17 a 38.23 54.18 a 56.70 57.73 a 68.30 70.03 a 69.15 a 68.87 56.68 a 48.35 36.05 a 54.87
1946 38.63 40.89 54.40 55.37 59.23 67.77 69.29 65.60 63.58 57.39 50.82 40.21 55.26
1947 40.76 27.71 34.23 55.23 60.18 67.53 67.65 71.55 63.60 57.08 39.80 35.97 b 51.77
1948 ----- z ----- z ----- z ----- z ----- z ----- z ----- z 69.06 62.97 51.27 p 47.30 41.65 k 59.78
1949 41.12 g 41.02 42.27 50.05 60.36 b 67.66 a 71.71 b 68.47 60.90 57.23 42.14 a 38.50 c 54.57
1950 45.48 37.68 39.24 49.43 61.48 66.33 67.48 66.73 60.13 55.47 40.32 30.68 a 51.71
1951 37.11 i 37.07 45.86 t ----- z ----- z 68.86 l 71.00 a 70.55 64.21 d 56.52 38.12 38.19 53.67
1952 39.03 37.28 41.53 51.58 60.87 73.15 d 71.94 e 68.42 e 61.80 b 49.58 a 44.93 a 35.67 b 52.98
1953 38.69 38.79 43.34 50.38 j 65.33 d 68.62 b 71.08 71.58 64.35 j 57.31 44.65 36.89 53.63
1954 36.53 39.79 41.13 57.18 56.18 67.93 ----- z 69.90 66.84 e ----- z 40.32 b 33.23 50.90
1955 30.79 35.98 ----- z 55.28 62.52 62.43 71.77 71.18 63.50 54.29 42.20 31.48 52.86
1956 29.79 38.67 42.24 49.27 60.66 66.92 72.06 73.19 63.60 56.24 43.60 47.78 a 53.67
1957 33.15 40.55 39.47 48.05 j 61.63 a 67.92 69.84 68.05 64.30 48.18 ----- z 36.85 52.99
1958 27.73 25.33 j ----- z 50.70 60.24 65.80 b 71.74 69.35 63.22 51.71 46.60 31.96 c 53.91
1959 31.07 a 36.20 41.66 53.77 62.91 c 66.55 i 70.19 e 71.74 d 63.86 h 53.00 c 42.25 37.38 c 50.02
1960 32.78 f 32.20 i 30.70 h 54.83 57.13 65.95 b 69.63 70.76 63.60 54.89 45.63 29.37 56.87
1961 31.06 d 35.65 e 45.52 45.45 a 55.68 65.50 e 69.64 j 68.56 64.90 e 52.95 c 45.72 c 35.00 49.63
1962 ----- z 38.08 c 38.05 c 48.32 65.69 d 65.02 f 68.93 k 68.71 b 61.00 g 53.64 f 40.91 g 29.10 e 47.99
1963 28.68 26.11 44.85 53.22 58.00 h 65.17 o 69.12 f 67.69 e 59.23 h ----- z 45.00 25.58 e 41.59
1964 31.78 b 28.85 b ----- z 51.02 58.98 i ----- z 68.61 65.98 a 62.41 a ----- z 47.67 35.93 c 49.03
1965 33.25 a 32.36 38.83 b 52.52 65.71 65.34 a 68.85 69.42 a 65.07 a 51.95 b 45.10 39.23 a 52.30
1966 27.34 31.30 44.19 48.80 59.45 66.93 b 71.70 a 67.60 62.40 f 52.43 b 45.98 34.07 a 49.98
1967 37.64 b 31.74 a 46.24 55.55 56.16 66.15 67.14 b 67.43 a 59.59 a 51.93 b 40.53 a 38.73 51.57
1968 31.34 25.95 44.84 52.87 57.19 65.64 a 69.56 70.31 61.71 f 53.15 43.02 a 30.68 49.50
1969 30.25 c 30.32 35.30 a 53.85 61.56 67.66 b 70.32 64.45 60.92 f 53.39 39.03 29.02 48.65
1970 28.89 32.83 h ----- z ----- z 63.77 67.12 a 70.10 69.24 67.09 c ----- z ----- z 34.87 p 61.04
1971 31.92 ----- z ----- z 52.50 b 57.70 f 68.55 b 67.35 a 65.60 65.13 59.31 r ----- z 42.34 56.20
1972 37.58 27.69 p 40.84 ----- z 58.00 o 59.98 a 68.00 67.06 ----- z ----- z ----- z ----- z 54.69
1973 ----- z 31.73 45.89 48.95 56.29 68.07 70.31 69.05 64.73 53.77 45.22 32.74 53.34
1974 42.98 34.45 ----- z ----- z 60.50 e ----- z ----- z ----- z ----- z ----- z ----- z ----- z 45.98
1975 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 54.72 o 47.91 c ----- z 47.91
Period of Record Statistics
MEAN 34.10 34.86 42.56 52.41 60.83 67.27 70.09 68.95 64.01 54.14 44.25 35.38 53.05
S.D. 4.71 4.73 4.73 3.17 3.23 2.54 1.67 2.23 2.77 2.42 3.04 4.61 1.36
SKEW 0.63 -0.45 0.83 -0.17 0.06 -0.39 0.11 0.26 1.33 -0.55 -0.15 0.27 0.47
MAX 45.48 41.02 54.40 57.73 66.33 73.15 74.16 74.58 73.03 57.39 50.82 47.78 55.26
MIN 27.34 25.95 34.23 45.45 55.68 59.98 67.14 64.45 59.59 48.18 38.12 25.58 51.57
NO YRS 28 26 25 27 27 27 29 34 26 25 30 31 9