YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1940 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 102.81 | c | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 102.81 | k |
1941 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1942 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 107.46 | e | 102.07 | a | 100.20 | 87.62 | e | 80.60 | 72.00 | 91.66 | f | |||
1943 | 68.38 | b | 77.07 | 78.96 | c | 88.83 | f | 95.48 | d | 99.75 | f | 104.33 | g | 99.83 | g | ----- | z | 88.59 | b | 79.80 | ----- | z | 81.38 | f | ||
1944 | 66.00 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 66.00 | k |
1945 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1946 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1947 | ----- | z | 73.59 | a | 75.24 | b | 81.27 | 91.94 | 96.53 | 103.84 | 98.68 | 99.30 | 85.94 | 66.93 | 62.40 | a | 85.06 | a | ||||||||
1948 | 66.23 | 64.71 | a | 67.16 | 83.50 | 91.73 | a | 98.90 | a | 102.71 | 102.19 | 97.63 | 86.48 | 69.60 | 62.61 | 82.79 | ||||||||||
1949 | 52.58 | 64.36 | 72.68 | 84.00 | 90.03 | 97.93 | 99.90 | 100.03 | a | 95.68 | b | 81.94 | 79.55 | a | 65.03 | 81.98 | ||||||||||
1950 | 64.16 | 72.04 | 76.35 | 85.83 | 89.68 | 99.07 | 98.90 | 101.97 | 92.37 | c | 89.87 | a | 77.93 | 71.73 | a | 84.99 | ||||||||||
1951 | 65.19 | 67.54 | 73.23 | 80.14 | a | 90.16 | 96.80 | 101.48 | 96.32 | 94.72 | a | 84.26 | 70.23 | 62.39 | 81.87 | |||||||||||
1952 | 63.35 | 66.29 | a | 66.68 | 79.63 | 93.77 | 98.73 | 100.03 | a | 100.79 | b | 99.60 | 94.35 | 70.87 | 64.58 | 83.22 | ||||||||||
1953 | 71.45 | 70.79 | 78.03 | 81.87 | 86.61 | 101.93 | 102.67 | d | 101.84 | 101.43 | 88.23 | 78.37 | 66.47 | a | 85.81 | |||||||||||
1954 | 68.48 | 78.73 | b | 73.52 | b | 88.31 | d | 94.06 | 100.32 | b | 102.00 | b | 99.45 | b | 99.13 | 90.81 | 81.23 | 69.55 | 87.13 | |||||||
1955 | 60.17 | b | 66.79 | 77.86 | b | 82.19 | d | 90.70 | d | 99.93 | 100.00 | b | 97.87 | 99.37 | 92.74 | 76.03 | 72.35 | 84.67 | ||||||||
1956 | 70.90 | 64.52 | 79.66 | b | 82.43 | 94.63 | d | 103.07 | 101.66 | b | 100.97 | 101.83 | a | 88.06 | 76.57 | 69.52 | b | 86.15 | ||||||||
1957 | 64.61 | 75.75 | 75.94 | 82.73 | 86.23 | e | 102.23 | 104.16 | 100.69 | b | 99.18 | b | 83.52 | b | 70.10 | 70.14 | c | 84.61 | ||||||||
1958 | 68.84 | 70.31 | b | 69.23 | 82.20 | 97.42 | 102.46 | b | 104.61 | 101.48 | 97.33 | 88.57 | a | 76.53 | 74.74 | 86.14 | ||||||||||
1959 | 71.06 | 68.32 | 79.06 | 88.23 | 89.89 | d | 104.10 | 104.87 | 98.57 | a | 96.57 | 87.58 | 75.57 | 65.77 | 85.80 | |||||||||||
1960 | 61.94 | 65.72 | 80.52 | 85.83 | 93.10 | b | 105.03 | 104.55 | 101.26 | 99.83 | a | 82.79 | b | 76.70 | 66.94 | 85.35 | ||||||||||
1961 | 69.74 | 72.61 | 75.13 | 85.14 | a | 91.72 | b | 102.60 | 102.94 | 99.58 | 93.50 | 86.37 | a | 70.93 | 64.77 | 84.59 | ||||||||||
1962 | 65.00 | 69.36 | 71.32 | 89.03 | 90.40 | a | 99.50 | 102.60 | a | 104.87 | 96.10 | 87.84 | 78.83 | a | 69.90 | 85.40 | ||||||||||
1963 | 63.87 | 75.32 | 74.93 | a | 80.41 | a | 94.61 | 97.23 | 104.16 | 97.84 | 99.17 | 89.84 | 75.37 | 69.87 | 85.22 | |||||||||||
1964 | 63.97 | 66.90 | 71.94 | 81.59 | a | 90.10 | 98.93 | 103.13 | a | 97.84 | 94.07 | 89.71 | 71.45 | a | 67.00 | 83.05 | ||||||||||
1965 | 67.52 | 69.15 | a | 72.06 | 81.17 | a | 88.23 | 94.41 | a | 102.55 | 101.60 | a | 93.70 | 91.55 | 76.07 | 65.45 | 83.62 | |||||||||
1966 | 63.60 | a | 65.07 | 78.37 | a | 85.47 | 94.77 | 100.80 | 103.55 | 101.65 | 95.43 | 87.23 | 77.97 | a | 67.55 | 85.12 | ||||||||||
1967 | 68.13 | 73.71 | 78.10 | 77.57 | 90.58 | 97.03 | 101.87 | 102.16 | 97.03 | 89.26 | 78.87 | 60.65 | 84.58 | |||||||||||||
1968 | 66.81 | 73.48 | 74.23 | a | 81.07 | 91.35 | 101.79 | a | 101.32 | 98.13 | 97.93 | 87.84 | 73.24 | a | 64.42 | 84.30 | ||||||||||
1969 | 67.55 | 67.79 | 72.65 | 83.60 | 93.77 | 97.63 | 103.06 | 104.81 | 98.43 | 83.23 | 74.13 | 67.52 | 84.51 | |||||||||||||
1970 | 67.16 | 73.86 | 72.26 | 78.73 | 94.00 | 100.97 | 105.13 | 102.55 | 94.62 | a | 83.71 | 76.13 | 65.74 | 84.57 | ||||||||||||
1971 | 68.16 | 70.43 | 80.14 | b | 81.73 | 87.55 | 99.33 | 105.00 | 98.35 | 96.93 | 80.65 | 74.43 | 62.94 | 83.80 | ||||||||||||
1972 | 68.23 | 76.24 | 85.77 | 85.80 | 93.29 | 101.27 | 106.32 | 101.90 | 97.60 | 80.94 | 69.43 | 64.50 | a | 85.94 | ||||||||||||
1973 | 63.19 | 68.43 | 67.00 | 81.14 | a | 94.68 | 102.43 | 104.52 | 104.35 | 99.13 | 90.48 | 74.40 | 70.06 | 84.99 | ||||||||||||
1974 | 66.23 | 72.07 | 77.48 | 85.23 | 94.58 | 106.43 | 102.71 | 102.94 | 97.73 | 85.77 | 74.37 | 63.55 | 85.76 | |||||||||||||
1975 | 66.87 | 68.93 | 72.42 | 77.10 | 89.74 | 99.70 | 103.06 | 103.68 | 97.50 | 86.90 | 75.90 | 67.42 | 84.10 | |||||||||||||
1976 | 69.68 | 73.38 | 75.13 | 82.27 | 92.97 | 102.44 | c | 102.81 | 103.16 | 97.50 | v | ----- | z | ----- | z | ----- | z | 87.73 | d | |||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 66.10 | 70.43 | 74.94 | 82.84 | 91.86 | 100.40 | 103.02 | 100.95 | 97.44 | 87.18 | 75.10 | 66.92 | 84.65 | |||||||||||||
S.D. | 3.72 | 4.03 | 4.34 | 3.00 | 2.73 | 2.72 | 1.90 | 2.23 | 2.39 | 3.37 | 3.69 | 3.47 | 1.26 | |||||||||||||
SKEW | -1.50 | 0.21 | 0.04 | 0.24 | -0.23 | 0.02 | -0.03 | -0.16 | -0.29 | -0.14 | -0.37 | 0.30 | -0.48 | |||||||||||||
MAX | 71.45 | 78.73 | 85.77 | 89.03 | 97.42 | 106.43 | 107.46 | 104.87 | 101.83 | 94.35 | 81.23 | 74.74 | 87.13 | |||||||||||||
MIN | 52.58 | 64.36 | 66.68 | 77.10 | 86.23 | 94.41 | 98.90 | 96.32 | 92.37 | 80.65 | 66.93 | 60.65 | 81.87 | |||||||||||||
YRS | 31 | 31 | 31 | 30 | 31 | 31 | 31 | 31 | 30 | 31 | 31 | 30 | 28 |