YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1959 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 67.34 | b | 62.35 | 54.92 | 61.54 | i | ||
1960 | 47.98 | 50.57 | 57.47 | a | 61.62 | 65.31 | 71.72 | 79.26 | 74.66 | 76.43 | 64.87 | 54.88 | 53.00 | 63.15 | ||||||||||||
1961 | 55.81 | 55.16 | 54.55 | b | 60.70 | c | 61.10 | b | 71.17 | 76.05 | 77.23 | 70.52 | 65.23 | 55.55 | 51.61 | 62.89 | ||||||||||
1962 | 52.87 | 49.74 | c | 50.17 | a | 63.72 | a | 61.02 | d | 67.65 | 72.61 | 77.39 | 72.73 | b | 64.94 | 57.77 | 54.63 | a | 62.10 | |||||||
1963 | 49.37 | 58.79 | 53.31 | 54.80 | 61.81 | 65.28 | 73.69 | 75.03 | 75.83 | 65.29 | 56.45 | 54.19 | 61.99 | |||||||||||||
1964 | 50.23 | 53.02 | a | 53.85 | 57.68 | 61.66 | 67.22 | 77.16 | 75.88 | a | 70.62 | 71.02 | 54.42 | 51.03 | a | 61.98 | ||||||||||
1965 | 53.30 | a | 53.88 | 54.92 | 59.00 | 62.65 | a | 64.48 | a | 74.52 | 77.84 | 68.40 | 70.35 | 56.83 | 50.94 | 62.26 | ||||||||||
1966 | 50.56 | 51.34 | 58.68 | 63.35 | 65.83 | a | 70.23 | 75.34 | 76.90 | 72.53 | 66.34 | 56.82 | 53.05 | a | 63.41 | |||||||||||
1967 | 53.15 | a | 57.38 | 56.00 | a | 50.25 | 64.42 | 65.38 | 77.45 | 79.16 | 72.52 | 68.88 | a | 60.50 | 48.85 | 62.83 | ||||||||||
1968 | 51.24 | 57.78 | 56.95 | 58.50 | 62.33 | a | 67.85 | 74.60 | 71.58 | a | 71.26 | a | 64.66 | 57.97 | 49.10 | 61.98 | ||||||||||
1969 | 52.61 | 48.50 | 53.63 | 58.67 | 64.02 | b | 64.43 | 74.85 | 78.18 | 73.37 | 61.81 | 59.75 | 52.95 | 61.90 | ||||||||||||
1970 | 52.16 | 56.75 | 55.79 | 55.97 | 64.98 | b | 68.35 | 76.34 | 76.65 | a | 71.32 | 62.06 | 57.77 | 49.34 | 62.29 | |||||||||||
1971 | 52.82 | 52.57 | 55.27 | 56.63 | 59.58 | 66.73 | 74.52 | 77.42 | a | 72.72 | 62.98 | 55.32 | 46.56 | 61.09 | ||||||||||||
1972 | 50.23 | 55.91 | a | 60.03 | 59.23 | 64.16 | 70.50 | a | 76.35 | 74.42 | 69.68 | b | 60.98 | a | 54.18 | 50.48 | 62.18 | |||||||||
1973 | 48.44 | 52.16 | 50.16 | 57.40 | 64.24 | 71.50 | 72.21 | 73.18 | 66.85 | 65.42 | 53.68 | 52.87 | 60.68 | |||||||||||||
1974 | 49.57 | a | 53.23 | 54.76 | b | 59.15 | 62.02 | 69.77 | 74.60 | 72.26 | 74.24 | a | 62.48 | a | 57.12 | a | 50.60 | 61.65 | ||||||||
1975 | 53.42 | a | 50.80 | a | 52.05 | 51.48 | 61.50 | 64.98 | 72.71 | 72.24 | 73.28 | 61.56 | 57.10 | a | 53.89 | 60.42 | ||||||||||
1976 | 55.89 | 53.70 | a | 54.66 | b | 55.98 | 64.82 | 70.72 | 73.05 | 71.60 | 69.38 | 66.31 | 62.52 | 55.23 | a | 62.82 | ||||||||||
1977 | 52.03 | 59.20 | 51.85 | 60.92 | 58.00 | a | 69.13 | 75.45 | a | 75.50 | 69.65 | 67.45 | 61.58 | 56.70 | a | 63.12 | ||||||||||
1978 | 52.73 | 53.50 | b | 57.84 | 56.35 | 66.18 | a | 72.08 | 76.03 | 73.45 | 73.75 | 70.02 | 55.18 | 49.97 | 63.09 | |||||||||||
1979 | 48.95 | 51.86 | 55.40 | 60.16 | a | 64.27 | 72.48 | 74.94 | 74.08 | 78.28 | 64.37 | 57.05 | 57.05 | 63.24 | ||||||||||||
1980 | 54.88 | a | 57.77 | a | 54.37 | 60.88 | 59.24 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 57.43 | g | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 51.82 | 53.98 | 54.84 | 58.21 | 62.82 | 68.58 | 75.09 | 75.23 | 72.17 | 65.45 | 57.37 | 52.24 | 62.25 | |||||||||||||
S.D. | 2.29 | 3.10 | 2.55 | 3.41 | 2.27 | 2.71 | 1.77 | 2.34 | 2.80 | 2.95 | 2.62 | 2.74 | 0.85 | |||||||||||||
SKEW | 0.07 | 0.14 | -0.02 | -0.61 | -0.41 | -0.18 | 0.35 | -0.11 | 0.26 | 0.33 | 0.65 | -0.07 | -0.62 | |||||||||||||
MAX | 55.89 | 59.20 | 60.03 | 63.72 | 66.18 | 72.48 | 79.26 | 79.16 | 78.28 | 71.02 | 62.52 | 57.05 | 63.41 | |||||||||||||
MIN | 47.98 | 48.50 | 50.16 | 50.25 | 58.00 | 64.43 | 72.21 | 71.58 | 66.85 | 60.98 | 53.68 | 46.56 | 60.42 | |||||||||||||
YRS | 21 | 21 | 21 | 21 | 21 | 20 | 20 | 20 | 20 | 21 | 21 | 21 | 20 |