YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1955 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 51.43 | 50.77 | 51.10 | j | ||
1956 | 48.92 | 47.47 | 54.77 | 59.08 | 65.18 | 73.52 | 77.24 | 74.58 | 73.95 | 63.65 | 56.63 | 47.21 | 61.85 | |||||||||||||
1957 | 45.44 | 52.75 | 55.18 | 59.65 | 63.05 | 76.25 | 78.05 | 75.71 | 74.13 | 63.16 | 53.79 | b | 46.53 | 61.97 | ||||||||||||
1958 | 46.47 | b | 55.04 | 51.48 | 59.35 | 67.69 | 70.47 | 76.15 | 81.34 | b | 75.15 | 69.62 | a | 56.87 | 53.71 | 63.61 | ||||||||||
1959 | 49.77 | a | 49.52 | a | 58.06 | 63.55 | a | 63.26 | 74.29 | b | 80.55 | 76.27 | 70.47 | 67.66 | 58.03 | a | 49.63 | 63.42 | ||||||||
1960 | 46.24 | b | 50.50 | a | 56.27 | a | 59.05 | 64.19 | 76.55 | a | 80.18 | 76.02 | 73.58 | 64.08 | 53.25 | 46.84 | 62.23 | |||||||||
1961 | 42.55 | 52.12 | 52.98 | 59.73 | 61.40 | 75.90 | 80.47 | a | 78.53 | 71.17 | 66.22 | b | 53.27 | 44.24 | 61.55 | |||||||||||
1962 | 42.39 | 47.41 | a | 51.18 | 62.67 | 62.65 | 72.33 | 76.28 | a | 75.32 | 71.63 | 62.05 | 55.72 | 46.63 | 60.52 | |||||||||||
1963 | 42.23 | 55.91 | 52.68 | 53.12 | 62.27 | 70.25 | 74.16 | 76.31 | 74.28 | a | 64.63 | 51.33 | 40.56 | 59.81 | ||||||||||||
1964 | 44.34 | 50.17 | 50.82 | 56.45 | 61.48 | 68.80 | 76.76 | 76.52 | 69.70 | 67.84 | 50.22 | 49.60 | a | 60.22 | ||||||||||||
1965 | 45.15 | 49.41 | 53.58 | 57.13 | 64.69 | 66.87 | 75.03 | 76.71 | 68.35 | 68.56 | 55.85 | 41.76 | 60.26 | |||||||||||||
1966 | 46.61 | 47.91 | 54.32 | 63.43 | 66.79 | 72.80 | 73.66 | 78.68 | 72.12 | 65.32 | 55.85 | 45.68 | 61.93 | |||||||||||||
1967 | 46.19 | 48.02 | 52.03 | 49.43 | 65.16 | 68.75 | 80.21 | 81.24 | 75.53 | 66.92 | 58.67 | 45.06 | 61.44 | |||||||||||||
1968 | 44.37 | 54.38 | 55.79 | 59.57 | 63.94 | 74.65 | 77.58 | 73.37 | 72.78 | 63.63 | 52.70 | 44.82 | 61.46 | |||||||||||||
1969 | 43.98 | 46.41 | 52.63 | 57.23 | 66.52 | 69.12 | a | 77.94 | 79.65 | 75.08 | 62.00 | 57.22 | 49.66 | 61.45 | ||||||||||||
1970 | 49.90 | 52.34 | 55.37 | 55.52 | 66.84 | 71.20 | 78.42 | 75.29 | 72.60 | 62.29 | 55.30 | 44.85 | 61.66 | |||||||||||||
1971 | 44.33 | a | 46.46 | 51.11 | 55.10 | 59.48 | 68.73 | 77.32 | 78.84 | 73.57 | 61.81 | 53.22 | 43.42 | 59.45 | ||||||||||||
1972 | 41.48 | 51.16 | 58.18 | 57.57 | 66.26 | 72.42 | 77.31 | 76.94 | 69.95 | 62.06 | 49.92 | 39.90 | 60.26 | |||||||||||||
1973 | 44.79 | 51.72 | a | 50.03 | 59.97 | a | 69.03 | 75.02 | 76.50 | 74.65 | 69.93 | 63.18 | 51.58 | 47.24 | 61.14 | |||||||||||
1974 | 46.88 | a | 49.00 | 53.50 | 56.23 | 64.82 | 73.12 | 76.03 | 76.04 | c | 74.40 | a | 68.13 | 52.86 | b | 45.68 | 61.39 | |||||||||
1975 | 43.03 | 48.75 | b | 50.56 | 52.15 | 65.63 | 70.58 | 74.53 | a | 74.60 | a | 74.05 | 60.25 | a | 50.38 | a | 46.95 | 59.29 | ||||||||
1976 | 47.53 | 50.91 | 52.56 | 54.90 | 67.21 | 70.62 | a | 76.26 | 71.95 | 72.83 | 68.21 | 57.77 | 50.32 | 61.76 | ||||||||||||
1977 | 43.35 | 52.95 | 51.26 | 63.72 | 57.86 | j | 75.47 | 77.39 | 77.27 | 71.72 | 66.79 | 55.37 | 50.98 | 62.39 | a | |||||||||||
1978 | 51.00 | 51.73 | 58.50 | 56.53 | 66.44 | 71.15 | 77.47 | 77.76 | 71.27 | 69.97 | a | 52.80 | 43.34 | 62.33 | ||||||||||||
1979 | 46.11 | 48.57 | 54.73 | 57.83 | 66.79 | 73.32 | 76.63 | 74.74 | 76.00 | 64.74 | 54.20 | 50.37 | 62.00 | |||||||||||||
1980 | 48.81 | 53.69 | 53.11 | 59.12 | 63.18 | 67.52 | 77.18 | 74.07 | a | 71.82 | 67.97 | 57.67 | 48.76 | 61.91 | ||||||||||||
1981 | 48.29 | 52.73 | 53.32 | 59.60 | 66.82 | 77.85 | 77.84 | 76.06 | 73.35 | 62.02 | 57.22 | 49.97 | 62.92 | |||||||||||||
1982 | 43.62 | b | 51.46 | 52.66 | 56.54 | b | 66.68 | 68.41 | a | 75.65 | 76.27 | 71.92 | 64.66 | 50.43 | 46.94 | 60.44 | ||||||||||
1983 | 43.63 | a | 52.59 | 53.98 | a | 55.77 | 64.98 | 71.80 | 74.32 | 78.11 | ----- | z | 68.07 | a | 53.32 | 49.93 | c | 60.59 | a | |||||||
1984 | 47.71 | 50.52 | 57.25 | a | 57.66 | a | 69.27 | 72.64 | a | 81.62 | a | 78.28 | a | 77.48 | 60.60 | 52.40 | 46.34 | 62.65 | ||||||||
1985 | 42.55 | a | 51.23 | b | 50.68 | a | 62.53 | 65.26 | 76.95 | 80.33 | b | 73.17 | a | 68.92 | 63.87 | 51.68 | b | 41.78 | a | 60.75 | ||||||
1986 | 51.19 | b | 54.18 | 59.00 | a | 59.86 | a | ----- | z | 73.34 | a | 76.44 | ----- | z | 67.12 | 66.34 | b | 58.13 | 47.34 | 61.29 | b | |||||
1987 | 45.72 | b | 52.12 | c | 52.52 | d | 64.24 | c | 69.66 | 73.27 | 72.25 | a | ----- | z | 72.72 | 70.06 | 55.03 | a | ----- | z | 62.76 | b | ||||
1988 | 48.10 | 54.80 | d | 57.81 | d | 60.93 | c | 63.69 | e | 72.31 | d | 82.21 | 77.23 | 74.15 | 67.61 | d | 54.62 | 47.89 | 63.44 | |||||||
1989 | 44.23 | 47.02 | 55.73 | 63.77 | 66.94 | g | 72.88 | 78.19 | 75.24 | 70.12 | a | 63.77 | 56.28 | 45.89 | c | 61.19 | a | |||||||||
1990 | 47.13 | a | 47.18 | 56.43 | a | 63.35 | 65.55 | 72.88 | 79.56 | 77.68 | a | 74.70 | b | 68.42 | 53.64 | a | 43.17 | a | 62.47 | |||||||
1991 | 47.43 | a | 55.56 | d | 50.42 | 57.71 | a | 62.32 | 71.04 | b | 78.98 | 74.63 | 76.85 | 70.89 | 57.67 | 47.37 | 62.57 | |||||||||
1992 | 44.47 | 53.93 | a | 57.00 | 62.83 | 71.58 | 73.25 | 77.18 | 79.58 | 74.37 | 68.93 | a | 54.84 | a | 43.90 | a | 63.49 | |||||||||
1993 | 45.40 | 50.16 | 58.82 | a | 58.76 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 53.28 | h | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 45.82 | 50.99 | 54.11 | 58.73 | 65.29 | 72.33 | 77.40 | 76.53 | 72.71 | 65.57 | 54.40 | 46.62 | 61.61 | |||||||||||||
S.D. | 2.52 | 2.69 | 2.68 | 3.46 | 2.59 | 2.72 | 2.24 | 2.17 | 2.40 | 2.95 | 2.54 | 3.15 | 1.17 | |||||||||||||
SKEW | 0.35 | -0.02 | 0.30 | -0.36 | 0.13 | -0.02 | 0.07 | 0.28 | -0.26 | -0.02 | -0.07 | -0.12 | -0.16 | |||||||||||||
MAX | 51.19 | 55.91 | 59.00 | 64.24 | 71.58 | 77.85 | 82.21 | 81.34 | 77.48 | 70.89 | 58.67 | 53.71 | 63.61 | |||||||||||||
MIN | 41.48 | 46.41 | 50.03 | 49.43 | 59.48 | 66.87 | 72.25 | 71.95 | 67.12 | 60.25 | 49.92 | 39.90 | 59.29 | |||||||||||||
YRS | 38 | 38 | 38 | 38 | 34 | 37 | 37 | 35 | 36 | 37 | 38 | 37 | 32 |