YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1950 | 69.36 | q | 74.68 | 77.19 | 86.90 | 90.65 | 101.03 | 101.26 | 104.58 | 95.20 | 93.84 | 79.43 | 73.60 | a | 88.94 | a | ||||||||||
1951 | 66.00 | 68.61 | 74.74 | 81.74 | c | 93.61 | c | 100.47 | 105.62 | o | 98.81 | 97.33 | 88.45 | 71.77 | 62.65 | 82.20 | a | |||||||||
1952 | 63.23 | 68.14 | 67.74 | 81.27 | 94.23 | 98.87 | 102.29 | 101.29 | 98.53 | 92.58 | 68.97 | 65.06 | 83.52 | |||||||||||||
1953 | 70.03 | 69.50 | 76.03 | 79.50 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 76.59 | a | 65.23 | 72.81 | f | |||||
1954 | 66.65 | 76.96 | 72.13 | a | 86.87 | 87.00 | y | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 67.58 | 74.04 | g | ||||
1955 | 58.32 | 66.04 | 76.45 | 82.77 | 91.71 | 100.93 | ----- | z | 97.93 | d | 99.23 | 92.71 | 73.77 | 69.81 | 82.70 | a | ||||||||||
1956 | 69.57 | c | 64.10 | 79.39 | 82.93 | 94.61 | 104.30 | 104.62 | r | 101.45 | 102.43 | 86.58 | 73.90 | 67.48 | 84.25 | a | ||||||||||
1957 | 62.74 | 75.04 | d | 75.68 | 81.50 | 87.84 | 102.40 | 103.35 | 99.48 | 97.80 | 81.35 | 67.30 | 67.48 | 83.50 | ||||||||||||
1958 | 67.55 | 70.32 | 68.39 | 85.97 | a | 97.74 | 102.57 | 106.84 | 102.52 | 98.07 | 88.65 | 75.87 | 73.71 | 86.51 | ||||||||||||
1959 | 69.74 | 68.00 | 79.23 | ----- | z | 91.48 | 105.07 | 105.90 | 100.39 | 98.93 | 88.19 | 74.83 | 64.94 | 86.06 | a | |||||||||||
1960 | 60.13 | 64.83 | 80.19 | 86.33 | 93.74 | 105.23 | 106.29 | 103.32 | 101.53 | 91.57 | q | 76.47 | 66.90 | 85.91 | a | |||||||||||
1961 | 69.68 | 72.50 | 74.48 | 84.63 | 91.48 | 102.60 | 104.23 | 100.77 | 94.60 | 87.84 | 70.90 | 64.16 | 84.82 | |||||||||||||
1962 | 63.94 | 69.25 | 70.26 | 89.63 | 89.13 | 101.00 | b | 104.45 | 107.45 | 98.67 | 89.84 | 81.83 | a | 70.03 | 86.29 | |||||||||||
1963 | 64.13 | 76.18 | 75.84 | 80.77 | 96.68 | 98.30 | 105.48 | 100.94 | 101.97 | 93.29 | 75.30 | 69.87 | 86.56 | |||||||||||||
1964 | 64.39 | 67.28 | 71.45 | 82.37 | 91.90 | 100.23 | 106.00 | 99.94 | 96.43 | 92.35 | 71.10 | a | 67.10 | 84.21 | ||||||||||||
1965 | 66.16 | 68.50 | 70.94 | 79.07 | 88.71 | 95.70 | 105.19 | 104.74 | 95.83 | 92.19 | 76.13 | 65.13 | 84.02 | |||||||||||||
1966 | 62.65 | 64.54 | 78.61 | 88.80 | 97.48 | 103.97 | 106.94 | 103.90 | 96.50 | 87.65 | 77.43 | 67.03 | 86.29 | |||||||||||||
1967 | 67.77 | 74.68 | 79.58 | 78.73 | 93.10 | 98.47 | 104.39 | 104.23 | 98.90 | 91.29 | 78.87 | 60.68 | 85.89 | |||||||||||||
1968 | 66.19 | 73.34 | 75.10 | 82.47 | 93.97 | 104.00 | 105.25 | g | 100.71 | 100.63 | 88.65 | 74.59 | a | 64.03 | 83.97 | a | ||||||||||
1969 | 66.97 | 67.11 | 73.84 | 86.83 | 97.13 | 101.80 | 107.87 | 108.52 | 100.50 | 85.16 | 74.47 | 68.26 | 86.54 | |||||||||||||
1970 | 59.75 | w | ----- | z | 73.80 | a | 81.75 | b | 95.86 | j | 103.23 | h | 107.73 | i | 105.14 | j | 95.92 | f | 84.45 | i | 75.93 | 65.19 | 74.17 | h | ||
1971 | 68.32 | 70.36 | 79.45 | 81.53 | 88.10 | 100.50 | 106.23 | 99.19 | 97.93 | 81.48 | 74.40 | 62.45 | 84.16 | |||||||||||||
1972 | 67.58 | 75.45 | 86.40 | a | 85.83 | 92.52 | 100.90 | a | 106.35 | 101.55 | 97.93 | 80.65 | 69.30 | 62.87 | 85.61 | |||||||||||
1973 | 62.32 | 67.68 | 65.52 | 80.60 | 94.87 | a | 101.87 | 105.29 | 105.06 | 99.40 | 90.74 | 74.00 | 69.42 | 84.73 | ||||||||||||
1974 | 65.71 | 71.46 | 76.58 | 85.53 | 94.10 | 107.37 | 103.29 | 102.81 | 97.87 | 85.84 | 74.50 | 62.81 | 85.65 | |||||||||||||
1975 | 65.84 | 68.36 | 71.87 | 75.67 | 90.29 | 100.40 | 104.10 | 105.03 | 98.33 | 87.06 | 76.07 | 67.26 | 84.19 | |||||||||||||
1976 | 69.52 | 72.00 | 74.00 | 80.77 | 92.74 | 102.23 | 103.23 | 103.48 | 94.30 | 83.81 | 76.43 | 69.00 | 85.13 | |||||||||||||
1977 | 64.84 | 75.68 | 72.19 | 86.33 | 86.61 | 103.17 | 105.03 | 102.90 | 97.97 | 90.19 | 78.50 | 70.06 | 86.12 | |||||||||||||
1978 | 65.19 | 67.71 | 73.84 | 79.10 | 91.73 | a | 104.97 | 106.61 | 102.87 | 97.23 | 90.61 | 71.07 | 61.10 | 84.34 | ||||||||||||
1979 | 57.32 | 67.79 | 70.45 | 82.17 | 90.55 | 102.30 | 105.65 | 101.55 | 102.90 | 90.81 | 71.10 | 69.39 | 84.33 | |||||||||||||
1980 | 64.71 | 69.66 | 70.16 | 82.43 | 87.03 | 103.63 | 107.68 | 102.48 | 100.23 | 88.45 | 77.83 | 74.87 | 85.76 | |||||||||||||
1981 | 70.48 | 73.39 | 73.50 | a | 87.37 | 90.81 | 104.93 | 104.42 | 104.13 | 98.93 | 84.03 | 77.70 | 70.45 | 86.68 | ||||||||||||
1982 | 63.71 | 69.79 | 70.97 | a | 83.13 | 90.94 | 99.59 | a | 103.13 | 102.16 | 95.50 | 86.26 | 69.97 | 63.46 | c | 83.22 | ||||||||||
1983 | 66.77 | a | 67.64 | 70.00 | a | 75.67 | 91.58 | 99.53 | 105.40 | a | 101.84 | 100.55 | a | 86.50 | a | 73.13 | 65.81 | 83.70 | ||||||||
1984 | 68.90 | 72.76 | 80.23 | 81.60 | 98.80 | a | 102.00 | ----- | z | 100.45 | 97.17 | a | 81.48 | 73.43 | 61.55 | 83.49 | a | |||||||||
1985 | 63.00 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 63.00 | k |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 65.59 | 70.27 | 74.46 | 82.90 | 92.37 | 101.88 | 105.07 | 102.39 | 98.42 | 88.02 | 74.50 | 66.75 | 85.07 | |||||||||||||
S.D. | 3.24 | 3.56 | 4.32 | 3.43 | 3.13 | 2.45 | 1.63 | 2.38 | 2.19 | 3.75 | 3.28 | 3.60 | 1.14 | |||||||||||||
SKEW | -0.62 | 0.24 | 0.36 | -0.06 | 0.17 | -0.13 | -0.37 | 0.49 | 0.14 | -0.40 | -0.15 | 0.33 | -0.04 | |||||||||||||
MAX | 70.48 | 76.96 | 86.40 | 89.63 | 98.80 | 107.37 | 107.87 | 108.52 | 102.90 | 93.84 | 81.83 | 74.87 | 86.68 | |||||||||||||
MIN | 57.32 | 64.10 | 65.52 | 75.67 | 86.61 | 95.70 | 101.26 | 97.93 | 94.30 | 80.65 | 67.30 | 60.68 | 83.22 | |||||||||||||
YRS | 34 | 34 | 35 | 34 | 32 | 32 | 27 | 32 | 32 | 31 | 34 | 35 | 24 |