YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1928 | 52.42 | 46.72 | 59.71 | 63.97 | 72.32 | 85.03 | 87.94 | 80.32 | 78.70 | 70.23 | 52.50 | 46.29 | 66.35 | |||||||||||||
1929 | 47.00 | 39.96 | 53.74 | 66.30 | 72.16 | 85.73 | 84.03 | 80.20 | a | 76.62 | a | 65.03 | 47.57 | 49.77 | 64.01 | |||||||||||
1930 | 41.55 | 56.36 | 53.97 | 71.00 | 71.97 | 86.73 | 83.68 | 84.72 | b | 79.40 | 67.65 | 53.80 | 42.94 | 66.15 | ||||||||||||
1931 | 46.45 | 47.25 | 53.68 | 64.73 | 74.10 | b | 87.00 | 85.74 | 81.55 | 79.90 | 69.06 | 51.90 | 44.29 | 65.47 | ||||||||||||
1932 | 35.10 | 51.71 | a | 53.68 | 68.70 | 74.94 | 82.41 | c | 85.40 | a | 82.50 | a | 77.03 | 64.21 | b | 57.90 | a | 38.93 | a | 64.38 | ||||||
1933 | 39.32 | 44.81 | b | 60.81 | 62.53 | 73.69 | b | 82.33 | 87.13 | 85.16 | 83.13 | 70.89 | c | 58.73 | 55.16 | 66.98 | ||||||||||
1934 | 47.16 | 57.22 | a | 64.53 | a | 70.93 | 81.03 | 88.50 | b | 91.68 | 88.42 | 78.83 | 74.14 | c | 56.20 | 47.74 | 70.53 | |||||||||
1935 | 50.23 | 48.79 | 58.30 | a | 66.07 | a | 68.43 | a | 85.47 | 88.48 | 82.45 | 74.69 | a | 68.65 | 56.17 | a | 45.26 | 66.08 | ||||||||
1936 | 44.42 | 50.17 | 60.03 | 68.47 | 76.39 | 85.90 | 86.71 | 86.48 | 74.72 | a | 66.37 | a | 57.07 | b | 48.90 | 67.14 | ||||||||||
1937 | 41.10 | 49.25 | 51.63 | a | 67.67 | 75.07 | a | 82.67 | 87.29 | 88.03 | a | 78.83 | 69.77 | 58.17 | f | 46.52 | 67.08 | a | ||||||||
1938 | 46.00 | 49.79 | 57.29 | 67.20 | 73.52 | 84.07 | 85.94 | 89.13 | 75.77 | 69.81 | 53.93 | 50.26 | 66.89 | |||||||||||||
1939 | 40.61 | 36.89 | 56.97 | 67.47 | 77.37 | a | 87.55 | a | 87.19 | 85.35 | 79.97 | a | 67.61 | 55.10 | a | 52.48 | 66.21 | |||||||||
1940 | 42.13 | a | 48.50 | k | 59.79 | b | 66.97 | 76.42 | 83.40 | 87.58 | 82.19 | 78.63 | 72.13 | 53.43 | 47.03 | b | 68.16 | a | ||||||||
1941 | 44.35 | 52.04 | 53.53 | a | 59.03 | 72.13 | a | 78.00 | 83.45 | 82.65 | 76.73 | 64.03 | 57.33 | 48.52 | 64.32 | |||||||||||
1942 | 48.39 | 45.46 | 53.77 | 64.00 | 74.04 | f | 87.12 | e | 88.48 | 83.94 | 76.77 | 66.00 | 61.20 | 49.77 | 65.90 | a | ||||||||||
1943 | 49.35 | 55.18 | 58.90 | 71.63 | 76.58 | 84.90 | a | 87.71 | 88.26 | 79.67 | 69.45 | 57.86 | a | 39.94 | 68.29 | |||||||||||
1944 | 35.77 | 46.72 | 56.10 | 62.86 | b | 73.97 | 84.53 | 83.90 | 84.97 | 77.07 | 68.19 | 51.93 | 38.77 | 63.73 | ||||||||||||
1945 | 43.06 | 53.82 | 57.17 | a | 63.83 | 77.65 | 84.23 | 88.52 | b | 85.42 | 80.97 | a | 68.90 | 59.70 | 45.10 | 67.36 | ||||||||||
1946 | 42.37 | a | 52.39 | 61.00 | r | 72.87 | 74.13 | 89.17 | 86.77 | 82.23 | 80.93 | a | 66.42 | 51.55 | a | 52.66 | b | 68.32 | a | |||||||
1947 | 43.29 | 54.29 | 57.35 | 65.23 | 78.32 | 84.41 | a | 90.03 | 84.00 | 83.93 | 71.10 | 48.73 | 44.42 | 67.09 | ||||||||||||
1948 | 42.39 | 44.59 | 48.23 | 71.03 | 76.45 | 83.03 | 89.03 | 87.06 | 81.70 | 67.32 | 52.67 | 49.23 | 66.06 | |||||||||||||
1949 | 33.00 | 45.64 | 56.90 | 65.45 | a | 74.55 | 82.30 | 84.84 | 83.65 | 80.23 | 65.94 | 64.57 | 47.87 | 65.41 | ||||||||||||
1950 | 51.52 | 55.39 | 60.13 | a | 69.90 | 75.65 | 87.00 | a | 83.03 | a | 84.10 | b | 75.47 | 78.43 | c | 62.53 | 55.65 | 69.90 | ||||||||
1951 | 46.74 | 51.96 | 56.65 | 65.00 | a | 78.27 | e | 85.50 | 91.45 | 84.06 | 82.60 | 69.81 | 54.10 | 46.52 | 67.72 | |||||||||||
1952 | 49.68 | 48.38 | 52.45 | 64.83 | a | 75.45 | 87.63 | 86.94 | 88.57 | a | 80.60 | 74.29 | 49.87 | 42.55 | 66.77 | |||||||||||
1953 | 52.28 | b | 46.04 | 58.23 | 65.77 | 71.10 | a | 88.23 | 89.48 | 86.81 | 84.40 | 69.26 | 57.57 | 44.61 | 67.81 | |||||||||||
1954 | 48.45 | 59.43 | 56.23 | 72.93 | 76.10 | b | 86.83 | a | 89.68 | 84.42 | 82.29 | b | 70.79 | b | 60.40 | 49.16 | 69.73 | |||||||||
1955 | 42.97 | 46.68 | 58.03 | 65.43 | 73.52 | 83.40 | 83.94 | 82.57 | a | 82.48 | a | 71.84 | 57.57 | 49.39 | 66.48 | |||||||||||
1956 | 52.42 | 44.31 | 60.81 | 65.20 | 80.71 | 89.10 | 86.16 | 84.58 | 84.77 | 71.13 | 54.73 | 49.39 | 68.61 | |||||||||||||
1957 | 48.06 | 57.11 | a | 55.29 | 64.27 | 69.19 | 84.93 | 87.61 | 81.94 | 79.80 | 62.68 | 46.50 | 50.29 | 65.64 | ||||||||||||
1958 | 42.84 | 53.07 | 47.94 | 60.00 | 77.39 | 86.83 | 88.29 | 87.32 | 75.73 | 65.03 | 57.67 | 55.61 | 66.48 | |||||||||||||
1959 | 49.61 | 49.25 | 57.10 | 66.43 | 73.90 | 85.31 | a | 88.26 | 83.65 | 81.17 | a | 67.94 | 56.03 | 45.58 | 67.02 | |||||||||||
1960 | 41.29 | 43.76 | 59.58 | 68.90 | 74.81 | 85.10 | 86.35 | 87.97 | 82.83 | 66.29 | 57.77 | 38.23 | 66.07 | |||||||||||||
1961 | 41.61 | 50.25 | 57.87 | 66.87 | 78.48 | 87.23 | 89.03 | 83.45 | 76.07 | 69.48 | 50.67 | 44.29 | 66.28 | |||||||||||||
1962 | 44.81 | 54.75 | 52.35 | 70.63 | 79.00 | 85.57 | 84.52 | 89.90 | 79.43 | 69.16 | 59.17 | 50.52 | 68.32 | |||||||||||||
1963 | 41.35 | 50.32 | 57.61 | 69.00 | 79.94 | 86.60 | 91.90 | 84.32 | 80.57 | 74.74 | 59.20 | 50.68 | 68.85 | |||||||||||||
1964 | ----- | z | 39.83 | 53.68 | 62.60 | 76.81 | 86.30 | 90.65 | 87.19 | 79.00 | 73.52 | 55.57 | 46.90 | 68.37 | a | |||||||||||
1965 | 50.29 | 48.93 | 53.26 | 66.90 | 74.06 | 82.23 | 87.03 | 83.23 | 75.63 | 72.26 | 60.80 | 46.55 | 66.76 | |||||||||||||
1966 | 41.45 | 44.75 | 61.39 | 67.83 | 79.19 | 84.00 | 90.35 | 84.61 | 80.60 | 71.06 | 62.23 | 49.03 | 68.04 | |||||||||||||
1967 | 50.16 | 53.82 | 65.87 | 69.60 | 75.90 | 81.07 | 88.03 | 79.00 | 76.53 | 72.00 | 59.53 | 39.00 | 67.54 | |||||||||||||
1968 | 44.29 | 51.34 | 54.45 | 62.77 | 74.32 | 86.57 | 84.71 | 81.19 | 80.07 | 71.00 | 54.27 | 45.32 | 65.86 | |||||||||||||
1969 | 52.55 | 49.68 | 51.10 | 68.83 | 75.50 | a | 83.07 | 87.74 | 87.32 | 78.30 | 65.07 | a | 54.63 | 47.80 | a | 66.80 | ||||||||||
1970 | 44.32 | 54.67 | a | 52.90 | 64.67 | ----- | z | 84.27 | 87.71 | 84.80 | a | 79.03 | 63.94 | 57.83 | 51.84 | 66.00 | a | |||||||||
1971 | 48.97 | 50.43 | 61.39 | 65.93 | 75.68 | 87.63 | 87.58 | 80.68 | 76.17 | 65.52 | 54.67 | 40.06 | 66.22 | |||||||||||||
1972 | 48.39 | 56.00 | 67.55 | 71.17 | 76.80 | a | 85.63 | 87.48 | 81.06 | 75.20 | 65.80 | a | 46.33 | 44.52 | 67.16 | |||||||||||
1973 | 40.48 | 45.61 | 52.71 | 59.70 | 73.10 | 83.47 | 84.00 | 85.57 | a | 78.90 | 72.16 | 60.73 | 50.71 | 65.59 | ||||||||||||
1974 | 44.00 | 48.81 | a | 64.29 | 67.67 | c | 81.59 | b | 90.10 | 86.34 | b | 81.52 | 75.70 | 65.43 | a | 55.43 | 41.71 | 66.88 | ||||||||
1975 | 41.96 | d | 46.71 | 54.68 | 61.83 | 72.65 | 84.97 | 83.13 | 85.77 | 73.86 | a | 70.97 | a | 56.60 | 48.71 | 65.15 | ||||||||||
1976 | 45.87 | a | 57.59 | 58.06 | 66.63 | 73.34 | b | 86.03 | 85.39 | 84.13 | ----- | z | ----- | z | ----- | z | ----- | z | 69.63 | d | ||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 45.04 | 49.75 | 56.83 | 66.52 | 75.40 | 85.29 | 87.11 | 84.46 | 78.99 | 69.01 | 55.79 | 47.01 | 66.77 | |||||||||||||
S.D. | 4.63 | 4.97 | 4.18 | 3.32 | 2.88 | 2.30 | 2.29 | 2.60 | 2.80 | 3.32 | 4.18 | 4.36 | 1.49 | |||||||||||||
SKEW | -0.33 | -0.27 | 0.31 | -0.12 | 0.01 | -0.47 | 0.08 | 0.11 | 0.14 | 0.32 | -0.35 | -0.20 | 0.34 | |||||||||||||
MAX | 52.55 | 59.43 | 67.55 | 72.93 | 81.59 | 90.10 | 91.90 | 89.90 | 84.77 | 78.43 | 64.57 | 55.65 | 70.53 | |||||||||||||
MIN | 33.00 | 36.89 | 47.94 | 59.03 | 68.43 | 78.00 | 83.03 | 79.00 | 73.86 | 62.68 | 46.33 | 38.23 | 63.73 | |||||||||||||
YRS | 48 | 48 | 48 | 49 | 47 | 49 | 49 | 49 | 48 | 48 | 47 | 48 | 42 |