YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1913 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 56.22 | m | ----- | z |
1914 | 61.77 | 63.64 | 69.37 | d | 67.57 | 68.26 | 80.20 | 87.00 | 85.26 | 83.53 | 75.81 | 74.20 | 57.35 | 72.83 | ||||||||||||
1915 | 63.55 | 60.77 | b | 65.19 | 67.87 | 71.16 | 86.80 | 92.94 | 92.65 | 80.40 | 80.00 | 63.60 | ----- | z | 74.99 | a | ||||||||||
1916 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 88.37 | 70.06 | 71.83 | a | 62.81 | 73.27 | h | |||
1917 | 58.06 | 64.46 | 68.97 | 74.53 | 72.52 | 96.63 | 96.94 | 93.81 | 92.30 | 89.61 | 81.30 | 75.16 | 80.36 | |||||||||||||
1918 | 69.29 | 71.32 | 71.48 | 80.60 | 78.16 | 92.90 | 96.74 | 98.16 | 90.31 | a | 83.52 | 76.37 | 70.03 | 81.57 | ||||||||||||
1919 | 71.74 | 65.14 | 70.32 | 79.90 | 80.65 | 93.30 | 95.39 | 95.84 | 95.13 | 79.23 | 67.83 | 77.33 | s | 81.32 | a | |||||||||||
1920 | 71.84 | 68.59 | 68.84 | 71.50 | 80.35 | 85.27 | 98.29 | 93.94 | 88.80 | 77.65 | 71.97 | 65.71 | 78.56 | |||||||||||||
1921 | 63.61 | 69.64 | 70.42 | 74.27 | 70.84 | 84.23 | 94.58 | 94.10 | 89.43 | 81.17 | a | 74.93 | 66.58 | 77.82 | ||||||||||||
1922 | 59.65 | 61.11 | a | 64.16 | 66.33 | 80.06 | 89.00 | 91.00 | 95.48 | 95.07 | 81.45 | 68.97 | 54.00 | h | 77.48 | a | ||||||||||
1923 | ----- | z | 53.26 | a | 63.68 | 63.23 | 76.90 | 79.10 | 88.71 | 89.81 | 87.50 | 79.65 | 73.73 | 60.77 | 74.21 | a | ||||||||||
1924 | 62.48 | f | 71.83 | 59.48 | 64.00 | 81.03 | 90.67 | 92.29 | 93.39 | 94.40 | 79.94 | 75.93 | a | 62.19 | 78.65 | a | ||||||||||
1925 | 67.00 | 69.96 | 70.26 | 70.97 | 79.45 | 85.57 | 97.68 | 98.03 | 87.67 | 74.07 | a | 69.33 | 67.58 | 78.13 | ||||||||||||
1926 | 63.97 | 68.71 | 70.13 | 71.30 | 78.52 | 86.87 | 99.77 | 95.16 | 89.03 | 83.42 | 79.27 | 60.16 | 78.86 | |||||||||||||
1927 | 64.48 | 63.07 | 63.52 | 69.37 | 78.90 | a | 83.03 | 92.68 | 90.74 | 85.83 | 81.65 | 74.47 | 59.29 | 75.59 | ||||||||||||
1928 | 72.45 | 69.07 | 70.68 | 75.40 | 77.77 | 84.20 | 90.84 | 92.26 | 92.73 | 78.35 | 71.40 | 63.68 | 78.24 | |||||||||||||
1929 | 60.13 | 59.29 | 66.13 | 66.17 | 80.03 | 85.33 | 92.26 | 96.84 | 85.57 | 83.19 | 76.53 | 73.87 | 77.11 | |||||||||||||
1930 | 59.29 | 70.64 | 67.26 | 74.83 | 69.97 | 82.70 | 94.19 | 91.77 | 82.80 | 78.71 | 71.73 | 65.97 | 75.82 | |||||||||||||
1931 | 64.68 | 62.68 | 73.55 | 76.37 | 81.68 | 84.77 | 96.10 | 93.23 | 87.50 | 79.61 | 66.13 | 60.48 | 77.23 | |||||||||||||
1932 | 58.52 | 60.76 | 70.74 | 74.27 | 76.52 | 83.10 | 89.90 | 91.71 | 88.30 | 79.26 | 79.57 | 60.45 | 76.09 | |||||||||||||
1933 | 59.94 | 61.79 | 70.77 | 67.57 | 69.52 | 83.90 | 90.61 | 91.03 | 84.73 | 84.90 | 78.60 | 68.90 | 76.02 | |||||||||||||
1934 | 68.55 | 66.93 | 79.23 | 78.93 | 84.23 | 78.17 | 93.42 | 93.61 | 89.93 | 82.26 | 72.50 | 66.23 | 79.50 | |||||||||||||
1935 | 62.03 | 65.18 | 62.94 | 70.77 | 73.03 | 87.80 | 92.16 | 93.52 | 90.33 | 78.06 | 70.40 | 68.29 | 76.21 | |||||||||||||
1936 | 67.90 | 61.90 | 70.35 | 77.13 | 83.65 | ----- | z | 95.42 | 95.39 | 91.13 | 80.16 | 74.60 | 64.74 | 78.40 | a | |||||||||||
1937 | 52.61 | 62.00 | 68.00 | 72.97 | 77.13 | 86.17 | 93.32 | 96.77 | 92.27 | 84.26 | 75.70 | 71.23 | 77.70 | |||||||||||||
1938 | 69.84 | 62.86 | 63.61 | 72.60 | 77.52 | 84.83 | 90.97 | 92.71 | 95.53 | 82.32 | 75.10 | 67.94 | 77.99 | |||||||||||||
1939 | 65.52 | 60.46 | 66.77 | a | 78.17 | 80.84 | 86.30 | 93.94 | 93.71 | 87.50 | 81.03 | 76.30 | 73.77 | 78.69 | ||||||||||||
1940 | 65.90 | 64.52 | 71.42 | 72.13 | 82.23 | 85.87 | 92.68 | 92.32 | 86.53 | 83.71 | 72.30 | 69.97 | 78.30 | |||||||||||||
1941 | 62.03 | 65.86 | 67.45 | 65.80 | 78.42 | 81.27 | 93.26 | 90.00 | 83.60 | 75.55 | 74.93 | 63.90 | 75.17 | |||||||||||||
1942 | 66.35 | 63.29 | 66.77 | a | 66.00 | 77.00 | 83.83 | 95.48 | 93.42 | 88.47 | 80.10 | 75.57 | 68.68 | 77.08 | ||||||||||||
1943 | 65.58 | 66.96 | 67.06 | 71.97 | 79.52 | 83.10 | 91.61 | 91.81 | 93.47 | 82.45 | 76.53 | 63.07 | b | 77.76 | ||||||||||||
1944 | 63.35 | 61.97 | 67.63 | a | 72.83 | 79.26 | 78.17 | 91.19 | 96.29 | 87.97 | 82.03 | 67.57 | 72.35 | 76.72 | ||||||||||||
1945 | 66.94 | 65.86 | 63.58 | 71.50 | 78.61 | 81.30 | 92.23 | 92.13 | 89.13 | 80.45 | 73.57 | 64.93 | a | 76.69 | ||||||||||||
1946 | 65.06 | 64.36 | 65.74 | 73.77 | 74.55 | 89.70 | 91.90 | 95.39 | 93.20 | 75.58 | 64.83 | 64.65 | 76.56 | |||||||||||||
1947 | 62.35 | 69.46 | 67.65 | 73.20 | 80.90 | 83.43 | 97.77 | 90.81 | 93.50 | 81.13 | 69.03 | 63.23 | 77.71 | |||||||||||||
1948 | 70.13 | 62.34 | 61.00 | 70.78 | g | 77.52 | 82.57 | 94.48 | h | 94.23 | 96.42 | d | 79.90 | 74.67 | 63.20 | a | 76.20 | b | ||||||||
1949 | 50.74 | 59.14 | 63.52 | 73.70 | 76.68 | 87.17 | 92.07 | a | 94.00 | 94.17 | 79.03 | 81.60 | 66.16 | 76.50 | ||||||||||||
1950 | 60.57 | a | 68.64 | 70.06 | 75.17 | 75.07 | a | 84.60 | 93.87 | 93.32 | 85.79 | a | 88.90 | 79.17 | 74.13 | a | 79.11 | |||||||||
1951 | 63.32 | 64.96 | 69.71 | 70.33 | 78.10 | b | 83.90 | 94.64 | f | 93.48 | 92.87 | 82.58 | 71.97 | 61.52 | 75.70 | a | ||||||||||
1952 | 58.52 | 64.76 | 59.42 | 68.87 | 84.20 | a | 80.87 | 95.42 | 96.73 | a | 96.10 | 88.68 | 67.87 | 64.28 | b | 77.14 | ||||||||||
1953 | 70.26 | 68.18 | 67.48 | 69.10 | 72.43 | a | 84.27 | 94.59 | i | 94.93 | b | 93.73 | d | 88.33 | p | 75.37 | 69.77 | a | 76.55 | b | ||||||
1954 | 66.25 | g | 74.79 | 64.06 | 73.24 | a | 77.77 | 83.07 | 95.31 | b | 90.06 | 93.47 | 82.94 | 77.57 | 67.42 | 79.97 | a | |||||||||
1955 | 58.39 | 64.36 | 69.38 | b | 73.19 | i | 74.42 | 84.07 | 89.35 | 94.87 | 93.23 | 81.19 | 71.87 | 65.10 | a | 76.93 | a | |||||||||
1956 | 64.84 | 59.00 | 73.10 | 68.13 | 76.52 | 89.43 | 93.52 | 92.10 | 96.77 | 79.10 | 76.67 | 70.71 | 78.32 | |||||||||||||
1957 | 58.20 | a | 67.75 | 66.61 | 70.13 | 70.06 | 89.33 | 95.87 | 93.94 | 90.33 | 74.03 | 66.23 | 69.16 | 75.97 | ||||||||||||
1958 | 66.06 | 65.68 | 59.97 | 71.83 | 81.39 | 85.37 | 92.87 | 94.29 | 93.13 | 86.97 | 73.30 | 75.16 | 78.84 | |||||||||||||
1959 | 69.97 | 60.82 | 74.81 | 77.93 | 75.03 | 89.57 | 96.71 | 92.45 | 87.47 | 83.13 | 76.10 | 67.32 | 79.28 | |||||||||||||
1960 | 59.52 | 62.39 | a | 71.13 | 75.07 | 77.97 | 89.97 | 98.00 | 94.10 | 94.43 | 79.68 | 69.87 | 66.19 | 78.19 | ||||||||||||
1961 | 70.06 | 68.64 | 66.26 | 76.13 | 75.70 | a | 88.87 | 92.52 | 93.39 | 86.70 | 81.06 | 68.13 | 63.55 | 77.58 | ||||||||||||
1962 | 64.77 | 59.85 | a | 60.87 | 77.90 | 73.87 | 83.87 | 92.48 | 97.42 | 91.23 | 81.48 | 73.48 | c | 69.42 | 77.22 | |||||||||||
1963 | 61.74 | 73.43 | 66.84 | 68.27 | 77.84 | 79.83 | 93.87 | 92.29 | 91.30 | 81.00 | 70.20 | 69.71 | 77.19 | |||||||||||||
1964 | 63.00 | 66.86 | 64.81 | 68.90 | 74.52 | 83.77 | 95.35 | 92.06 | 87.69 | a | 86.39 | 67.27 | 64.42 | 76.25 | ||||||||||||
1965 | 65.06 | 67.07 | 64.39 | 70.47 | 75.26 | 75.70 | 90.97 | 95.53 | a | 83.53 | 86.00 | 70.73 | 63.16 | 75.66 | ||||||||||||
1966 | 62.68 | 61.29 | 71.03 | 76.57 | 78.23 | 85.50 | 93.39 | 95.23 | 88.80 | 80.37 | a | 71.50 | 65.90 | 77.54 | ||||||||||||
1967 | 66.45 | 69.68 | 66.77 | a | 60.93 | 76.77 | 78.47 | 93.45 | 97.13 | 86.83 | 86.58 | 75.67 | 59.55 | 76.52 | ||||||||||||
1968 | 64.94 | 70.31 | 69.32 | 70.93 | 77.39 | 85.73 | 91.90 | 90.42 | 89.97 | 81.10 | 72.17 | 63.13 | 77.28 | |||||||||||||
1969 | 64.10 | 58.18 | 64.77 | 70.93 | 78.00 | 76.67 | 92.35 | 97.90 | 92.03 | 77.65 | 72.40 | 65.90 | 75.91 | |||||||||||||
1970 | 64.13 | 68.93 | 67.29 | 68.03 | 78.97 | 85.53 | 95.35 | 95.45 | 89.80 | 78.16 | 73.03 | 61.32 | 77.17 | |||||||||||||
1971 | 65.45 | 65.39 | 69.77 | 68.50 | 71.00 | 84.17 | 94.29 | 95.55 | 90.07 | 76.68 | 69.50 | 56.71 | 75.59 | |||||||||||||
1972 | 65.19 | 71.07 | 76.29 | 75.60 | 80.23 | 84.40 | 96.39 | 91.68 | 84.43 | b | 73.52 | 67.03 | 62.45 | 77.36 | ||||||||||||
1973 | 59.81 | 61.68 | 57.52 | 68.53 | 77.61 | 88.30 | 91.97 | 92.35 | 84.27 | 82.06 | 67.63 | 67.61 | 74.95 | |||||||||||||
1974 | 61.23 | 66.68 | 67.16 | 72.80 | 76.65 | 90.67 | 91.61 | 91.68 | 91.30 | 77.19 | 71.30 | 63.06 | 76.78 | |||||||||||||
1975 | 66.84 | 61.68 | 62.23 | 60.80 | 76.13 | 82.37 | 91.84 | 94.13 | 90.47 | 78.74 | 73.67 | 67.00 | 75.49 | |||||||||||||
1976 | 68.65 | 64.93 | 66.48 | 67.23 | 79.06 | 88.40 | 90.16 | 90.26 | 80.17 | 80.68 | 74.43 | 69.38 | b | 76.65 | ||||||||||||
1977 | 62.52 | 72.57 | 63.90 | 75.00 | 68.90 | 86.77 | 95.87 | 92.16 | 87.57 | 83.35 | 76.83 | 68.87 | 77.86 | |||||||||||||
1978 | 62.23 | 63.11 | 65.55 | 66.23 | 76.94 | 89.53 | 94.45 | 91.68 | 86.13 | 84.68 | 66.33 | 60.74 | 75.63 | |||||||||||||
1979 | 57.35 | 62.75 | 63.90 | 71.80 | 74.97 | 86.23 | 91.48 | 88.39 | 95.40 | 79.45 | 70.24 | a | 70.71 | 76.06 | ||||||||||||
1980 | 61.94 | 67.34 | 63.68 | 71.33 | 66.23 | 84.53 | 92.90 | 90.23 | 86.80 | 82.19 | 74.63 | 70.84 | 76.05 | |||||||||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 63.85 | 65.18 | 67.16 | 71.47 | 76.83 | 85.09 | 93.47 | 93.40 | 89.62 | 80.83 | 72.76 | 66.06 | 77.17 | |||||||||||||
S.D. | 4.39 | 4.19 | 4.10 | 4.38 | 3.89 | 3.97 | 2.50 | 2.45 | 3.95 | 3.68 | 4.02 | 4.33 | 1.46 | |||||||||||||
SKEW | -0.36 | -0.01 | 0.18 | -0.20 | -0.59 | 0.14 | 0.16 | -0.35 | -0.22 | -0.08 | -0.07 | 0.13 | 0.21 | |||||||||||||
MAX | 72.45 | 74.79 | 79.23 | 80.60 | 84.23 | 96.63 | 99.77 | 98.16 | 96.77 | 89.61 | 81.60 | 75.16 | 81.57 | |||||||||||||
MIN | 50.74 | 53.26 | 57.52 | 60.80 | 66.23 | 75.70 | 87.00 | 85.26 | 80.17 | 70.06 | 63.60 | 56.71 | 72.83 | |||||||||||||
YRS | 63 | 66 | 66 | 64 | 66 | 65 | 63 | 66 | 67 | 66 | 67 | 64 | 55 |