YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1937 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 67.34 | a | 71.32 | 72.74 | 70.37 | 67.81 | 57.83 | 53.32 | 65.82 | e | ||||||
1938 | 52.35 | 53.64 | 55.13 | 60.83 | 64.16 | 68.00 | 70.55 | 71.39 | 72.47 | 66.10 | 53.80 | 52.94 | 61.78 | |||||||||||||
1939 | 51.81 | 50.25 | 56.48 | 63.43 | 65.13 | a | 66.13 | 70.61 | ----- | z | ----- | z | 64.32 | 59.47 | 54.13 | 60.18 | b | |||||||||
1940 | 51.23 | a | 53.03 | 56.03 | a | 59.50 | 63.52 | b | 67.00 | 67.42 | 69.65 | 65.83 | 60.77 | 50.57 | b | 48.65 | 59.43 | |||||||||
1941 | 49.26 | 51.67 | a | 53.90 | a | 54.18 | b | 61.32 | 61.27 | 69.39 | 64.32 | 70.19 | i | 66.87 | 59.47 | 52.33 | a | 58.54 | a | |||||||
1942 | 50.48 | 54.14 | 58.03 | b | 60.93 | 63.23 | 66.96 | b | 72.13 | 73.48 | 70.20 | 67.61 | 55.83 | 52.46 | c | 62.13 | ||||||||||
1943 | 49.21 | b | 59.14 | 56.87 | 60.17 | 61.03 | 64.47 | 68.32 | 69.31 | b | ----- | z | 62.41 | b | 57.79 | a | 50.24 | b | 59.91 | a | ||||||
1944 | 52.17 | a | 52.21 | 56.71 | 56.57 | 62.68 | 65.07 | 68.93 | b | 71.57 | c | 70.70 | 66.87 | 55.07 | 50.00 | 60.71 | ||||||||||
1945 | 52.70 | a | 53.89 | 52.87 | 56.47 | 61.19 | 68.40 | 70.65 | 68.32 | 68.17 | 63.32 | 54.37 | 50.94 | 60.11 | ||||||||||||
1946 | 50.68 | 52.21 | 53.77 | 57.00 | 62.93 | a | 65.37 | 69.17 | a | 68.43 | a | 68.93 | 60.55 | 53.57 | 50.26 | 59.41 | ||||||||||
1947 | 48.61 | 54.61 | 56.47 | a | 60.27 | 63.48 | 64.07 | 67.94 | 67.80 | a | 69.27 | 61.00 | 54.90 | 50.94 | 59.95 | |||||||||||
1948 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 69.81 | 71.36 | c | 69.90 | a | 61.43 | a | 54.50 | ----- | z | 65.40 | g | ||
1949 | ----- | z | ----- | z | ----- | z | ----- | z | 63.61 | m | 68.87 | 69.61 | 70.23 | 69.57 | 59.74 | 60.40 | 50.06 | 64.07 | e | |||||||
1950 | 49.06 | 58.04 | 56.10 | 60.03 | 61.29 | 65.53 | ----- | z | ----- | z | ----- | z | ----- | z | 60.41 | a | 58.52 | 58.62 | d | |||||||
1951 | 54.26 | 54.57 | 54.16 | 59.57 | 64.39 | 69.03 | 71.13 | 72.00 | 68.33 | 64.23 | a | 57.13 | 48.68 | 61.46 | ||||||||||||
1952 | 47.61 | 51.31 | 52.29 | 59.30 | 63.03 | 63.80 | 69.37 | a | 70.55 | 71.13 | 67.65 | 54.50 | 51.58 | 60.18 | ||||||||||||
1953 | 54.84 | 53.11 | 53.90 | 56.73 | 61.03 | 62.27 | 68.81 | 69.13 | 72.07 | 65.45 | 58.03 | 51.71 | 60.59 | |||||||||||||
1954 | 50.39 | 55.43 | 54.23 | 56.97 | 62.63 | a | 63.13 | 65.58 | 67.58 | 68.00 | b | 63.74 | 58.07 | 50.42 | 59.68 | |||||||||||
1955 | 49.26 | 49.36 | 51.71 | 52.53 | 59.45 | b | 63.07 | 64.65 | 67.13 | 68.59 | a | 63.23 | 54.40 | 51.10 | 57.87 | |||||||||||
1956 | 49.58 | 47.14 | 53.23 | a | 58.41 | a | 62.48 | 64.23 | 69.52 | 69.23 | 68.83 | a | 62.16 | 54.00 | 50.61 | 59.12 | ||||||||||
1957 | 44.26 | 53.07 | 54.29 | 58.52 | a | 63.10 | 67.10 | a | 69.65 | 70.00 | 72.17 | a | 63.71 | 57.70 | 53.68 | 60.60 | ||||||||||
1958 | 53.68 | 57.07 | a | 55.42 | 59.53 | 65.13 | 69.10 | 71.45 | 71.97 | 71.93 | 67.94 | 56.30 | 56.35 | 62.99 | ||||||||||||
1959 | 53.43 | a | 51.96 | 56.13 | 60.57 | 63.42 | 66.10 | 68.94 | 69.81 | 66.37 | 64.81 | 59.17 | a | 52.87 | 61.13 | |||||||||||
1960 | 49.77 | 53.41 | 55.10 | 60.37 | 60.19 | 68.30 | 68.26 | 68.13 | 69.00 | 64.35 | 57.13 | 52.90 | 60.58 | |||||||||||||
1961 | 55.35 | 54.32 | 55.39 | 59.10 | 60.13 | 68.27 | 70.19 | 70.32 | 67.93 | 64.19 | 54.10 | 50.35 | 60.80 | |||||||||||||
1962 | 49.39 | 53.29 | 54.48 | 60.80 | 59.71 | 65.47 | 68.10 | 71.94 | 69.47 | 64.32 | 57.63 | 53.90 | 60.71 | |||||||||||||
1963 | 48.97 | 59.57 | 55.06 | 55.60 | 62.32 | 65.43 | 69.35 | 69.65 | 71.97 | 65.74 | 55.97 | 53.58 | 61.10 | |||||||||||||
1964 | 50.55 | 55.34 | 53.97 | 55.87 | 60.19 | 65.17 | 68.52 | 69.87 | 69.33 | 65.90 | 53.67 | 49.61 | 59.83 | |||||||||||||
1965 | 49.77 | 53.64 | 59.19 | 59.57 | 60.26 | 64.30 | 68.16 | 72.52 | 71.20 | 68.84 | 58.50 | 50.13 | 61.34 | |||||||||||||
1966 | 51.97 | 52.50 | 54.77 | 61.80 | 62.94 | 68.55 | a | 70.23 | 72.55 | 73.53 | 65.16 | 56.77 | 52.71 | 61.96 | ||||||||||||
1967 | 51.65 | 55.00 | 54.00 | 56.00 | 65.42 | 67.83 | 72.42 | 74.97 | 76.23 | 66.39 | 58.13 | 49.39 | 62.29 | |||||||||||||
1968 | 51.13 | 59.52 | 59.39 | 57.93 | 62.58 | 69.77 | 71.61 | 71.29 | 72.23 | 64.32 | 56.60 | 49.61 | 62.17 | |||||||||||||
1969 | 45.23 | 49.75 | 59.87 | 58.97 | 67.00 | 67.27 | 70.16 | 72.20 | a | 70.33 | 65.90 | 58.37 | 52.74 | 61.48 | ||||||||||||
1970 | 52.10 | 58.79 | 59.45 | 56.67 | 65.39 | 68.60 | 71.81 | 70.32 | 70.03 | 66.03 | 57.00 | 50.35 | 62.21 | |||||||||||||
1971 | 48.35 | 52.43 | 52.87 | 56.90 | 59.35 | 63.97 | 67.26 | 71.03 | 69.53 | 61.35 | 54.31 | a | 47.35 | 58.73 | ||||||||||||
1972 | 47.06 | 52.59 | 56.55 | 55.47 | 62.61 | 66.93 | 71.37 | a | 71.58 | 68.47 | 62.61 | 56.60 | 47.35 | 59.93 | ||||||||||||
1973 | 48.58 | 57.07 | 53.58 | 60.55 | a | 63.23 | a | 67.07 | 68.47 | a | 67.90 | 69.17 | a | 63.81 | 52.70 | 53.58 | 60.48 | |||||||||
1974 | 48.10 | 50.89 | 55.23 | 57.77 | 60.94 | 65.31 | a | 69.35 | 70.53 | a | 71.47 | 66.29 | 57.20 | 52.20 | a | 60.44 | ||||||||||
1975 | 52.26 | 51.79 | 53.35 | 53.20 | 61.97 | 66.03 | 68.65 | 68.29 | 69.76 | a | 60.68 | 54.10 | 51.68 | 59.31 | ||||||||||||
1976 | 51.70 | a | 52.07 | a | 53.00 | a | 56.23 | 62.65 | 65.07 | 69.90 | 68.73 | a | 70.39 | b | 65.97 | 59.67 | 51.42 | 60.57 | ||||||||
1977 | 52.94 | 58.71 | 54.71 | 61.10 | 60.00 | a | 66.90 | 69.26 | 70.00 | a | 66.43 | 64.45 | 54.37 | 52.06 | 60.91 | |||||||||||
1978 | 52.29 | 54.82 | 59.97 | 58.25 | b | 62.23 | 68.03 | 68.13 | a | 70.61 | 68.47 | 67.16 | 53.50 | 47.39 | 60.90 | |||||||||||
1979 | 44.74 | 50.25 | 58.06 | 58.60 | 63.10 | 67.57 | 70.90 | 70.81 | 73.23 | d | 65.29 | 55.57 | 54.19 | 61.03 | ||||||||||||
1980 | 49.58 | 56.38 | 55.42 | g | 59.66 | a | 62.03 | 63.43 | 70.10 | 67.84 | 69.31 | a | 65.87 | 57.23 | 53.84 | 61.39 | a | |||||||||
1981 | 55.16 | 55.50 | 57.06 | 58.57 | 61.97 | 66.76 | a | 69.47 | a | 69.65 | 69.79 | a | 63.97 | 57.37 | 51.97 | 61.44 | ||||||||||
1982 | 46.74 | 52.69 | b | 53.97 | 56.57 | 62.48 | 63.35 | d | 67.29 | c | 69.84 | 69.63 | 64.80 | a | 53.83 | 50.08 | e | 59.27 | ||||||||
1983 | 53.83 | m | 55.74 | i | 58.62 | r | 62.33 | i | 62.33 | d | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 62.33 | k |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 50.42 | 53.86 | 55.40 | 58.30 | 62.40 | 66.13 | 69.42 | 70.15 | 69.99 | 64.56 | 56.25 | 51.56 | 60.65 | |||||||||||||
S.D. | 2.65 | 2.89 | 2.13 | 2.33 | 1.73 | 2.06 | 1.61 | 1.94 | 2.01 | 2.23 | 2.24 | 2.25 | 1.10 | |||||||||||||
SKEW | -0.28 | 0.26 | 0.62 | -0.37 | 0.31 | -0.30 | -0.55 | -0.25 | 0.55 | -0.31 | -0.11 | 0.47 | -0.19 | |||||||||||||
MAX | 55.35 | 59.57 | 59.97 | 63.43 | 67.00 | 69.77 | 72.42 | 74.97 | 76.23 | 68.84 | 60.41 | 58.52 | 62.99 | |||||||||||||
MIN | 44.26 | 47.14 | 51.71 | 52.53 | 59.35 | 61.27 | 64.65 | 64.32 | 65.83 | 59.74 | 50.57 | 47.35 | 57.87 | |||||||||||||
YRS | 43 | 43 | 42 | 43 | 44 | 45 | 45 | 44 | 42 | 45 | 46 | 45 | 38 |