YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1914 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 68.39 | 58.60 | 41.45 | 56.15 | i | |||
1915 | 41.65 | 50.32 | 58.93 | a | 70.03 | 74.52 | 86.85 | j | 90.55 | 91.48 | 81.41 | a | 74.26 | 59.17 | 48.06 | 67.31 | a | |||||||||
1916 | 42.45 | b | 58.57 | a | 67.16 | 72.93 | 80.16 | 90.80 | 92.91 | i | 87.25 | g | 81.40 | 67.57 | h | 53.20 | j | 44.17 | a | 67.21 | d | |||||
1917 | 36.06 | 49.07 | a | 55.84 | 64.47 | 71.06 | 90.93 | 94.74 | 91.52 | 81.77 | 74.03 | 61.27 | 53.48 | 68.69 | ||||||||||||
1918 | 41.33 | a | 52.74 | a | 63.26 | 69.73 | 76.28 | b | 95.17 | a | 91.84 | 89.48 | 84.47 | 75.68 | 55.90 | 37.67 | a | 69.46 | ||||||||
1919 | 24.65 | 46.07 | 60.97 | b | 74.12 | f | 82.27 | a | 91.73 | 91.36 | f | 92.14 | c | 82.04 | c | 70.77 | i | 57.59 | a | 49.00 | 65.16 | c | ||||
1920 | 44.34 | b | 53.03 | 58.45 | 66.67 | 81.43 | c | 85.03 | 94.23 | a | ----- | z | 82.87 | 70.81 | d | 59.21 | a | 49.83 | a | 67.81 | a | |||||
1921 | 53.54 | c | 57.73 | b | 68.17 | b | ----- | z | 85.97 | 95.43 | 95.18 | c | 87.62 | g | 85.41 | a | 75.68 | 61.72 | a | 47.87 | a | 72.67 | b | |||
1922 | 44.13 | 52.44 | c | 59.63 | d | 66.41 | a | 80.52 | 93.17 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 66.05 | f | |||
1923 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1924 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 60.10 | a | 43.97 | 52.04 | j | |
1925 | 45.45 | 59.68 | 66.87 | a | 74.52 | a | 85.33 | a | 91.00 | k | 96.85 | d | 89.61 | 82.77 | 76.39 | ----- | z | ----- | z | 75.27 | c | |||||
1926 | ----- | z | ----- | z | 60.85 | e | 72.81 | i | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 60.85 | k |
1927 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1928 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1929 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1930 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1931 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1932 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1933 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1934 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 91.79 | k | 97.74 | 94.42 | 85.36 | b | 78.52 | 61.30 | 49.52 | 77.81 | f | |||||
1935 | 48.68 | 57.64 | 63.48 | 72.71 | b | 75.94 | 93.76 | a | 96.26 | 93.36 | c | 86.40 | 75.55 | 56.37 | 47.68 | 72.32 | ||||||||||
1936 | 52.43 | a | 56.57 | a | 65.23 | a | 73.97 | a | 83.39 | 92.33 | 93.55 | 91.77 | 81.93 | 72.42 | 57.30 | 47.97 | b | 72.41 | ||||||||
1937 | 23.72 | b | 50.96 | a | 59.55 | 66.77 | 83.20 | a | 89.77 | 92.70 | h | 92.87 | 87.70 | 74.68 | 62.83 | a | 49.57 | a | 67.42 | a | ||||||
1938 | 49.10 | 51.61 | 57.13 | 68.66 | a | 76.10 | 88.70 | 92.00 | 92.32 | 88.03 | 74.97 | 53.10 | 51.52 | 70.27 | ||||||||||||
1939 | 48.68 | 44.39 | 64.10 | 75.60 | 82.83 | a | 92.20 | 97.58 | 94.81 | 84.73 | 74.00 | 60.73 | 52.66 | b | 72.69 | |||||||||||
1940 | 50.53 | a | 56.19 | b | 65.44 | d | 73.44 | c | 85.73 | e | 94.50 | d | 97.53 | a | 93.29 | c | 83.07 | 75.61 | c | ----- | z | 47.07 | c | 74.76 | a | |
1941 | 47.83 | b | 57.88 | b | 61.00 | d | 64.93 | a | 80.59 | b | 87.13 | 93.87 | a | 90.39 | 82.63 | c | 69.38 | b | 59.26 | c | 50.06 | 70.41 | ||||
1942 | 45.77 | a | 50.92 | c | 60.86 | c | 72.75 | f | 81.68 | 93.72 | e | 99.58 | 92.64 | i | ----- | z | 81.69 | b | 76.07 | b | ----- | z | 73.79 | d | ||
1943 | 62.64 | i | 66.30 | e | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 77.29 | q | 65.97 | a | 49.29 | c | 60.52 | i |
1944 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1945 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 87.70 | g | 98.26 | d | 97.07 | d | 92.77 | 79.50 | a | 67.67 | 48.09 | h | 87.05 | g | ||
1946 | 54.16 | f | 62.96 | d | 70.23 | e | 81.41 | a | 84.61 | 96.90 | 99.13 | ----- | z | ----- | z | 75.84 | f | 62.13 | 55.07 | b | 76.56 | d | ||||
1947 | 49.39 | 61.46 | b | 68.03 | 73.97 | 85.69 | b | ----- | z | ----- | z | ----- | z | ----- | z | 75.83 | a | 53.86 | b | 48.70 | a | 64.62 | d | |||
1948 | 51.23 | 53.00 | 58.23 | 77.10 | 82.39 | 90.53 | 96.29 | 92.10 | 86.62 | i | 73.32 | 55.67 | 50.97 | 70.98 | a | |||||||||||
1949 | 34.90 | 45.39 | 61.77 | 74.10 | 78.48 | 87.90 | 93.76 | b | 93.37 | a | 87.40 | 69.90 | 64.53 | 46.97 | 69.87 | |||||||||||
1950 | 50.84 | 58.29 | 64.39 | 75.27 | 79.23 | 91.70 | 91.58 | 91.90 | 83.57 | 84.03 | 65.77 | 56.71 | 74.44 | |||||||||||||
1951 | 50.97 | 54.43 | 60.90 | 70.50 | 79.55 | 89.40 | 97.13 | 91.48 | d | 88.41 | c | 72.66 | b | 55.31 | a | 47.26 | 71.50 | |||||||||
1952 | 48.97 | a | 52.39 | a | 54.74 | 69.47 | 82.06 | 90.67 | 93.10 | a | 92.50 | e | 85.62 | a | 80.00 | 48.90 | 46.03 | 70.37 | ||||||||
1953 | 56.77 | 54.18 | 63.77 | 70.83 | 74.37 | a | 92.68 | b | 93.38 | e | 90.50 | a | 90.40 | 74.90 | 62.07 | 46.19 | 72.50 | |||||||||
1954 | 50.87 | 62.25 | 59.87 | 77.87 | 84.16 | 90.38 | a | 94.93 | c | 91.03 | 86.33 | 76.13 | 64.24 | a | 47.45 | 73.79 | ||||||||||
1955 | 43.84 | 49.43 | 63.65 | 68.67 | 78.87 | a | 87.04 | b | 92.03 | 91.00 | a | 88.93 | a | 78.71 | 60.03 | a | 56.57 | a | 71.56 | |||||||
1956 | 55.45 | 49.77 | c | 65.40 | a | 68.31 | a | 83.93 | b | 94.38 | a | 93.93 | b | 91.45 | 91.67 | 75.40 | a | 52.76 | e | 49.58 | 72.67 | |||||
1957 | 48.93 | a | 60.64 | 62.48 | 69.03 | 75.06 | 91.48 | a | 93.48 | b | 90.06 | 87.29 | b | 69.00 | 52.43 | b | 53.03 | 71.08 | ||||||||
1958 | 49.32 | 58.74 | a | 56.16 | 69.37 | 85.73 | a | 92.97 | a | 96.13 | 94.68 | 84.57 | 74.33 | a | 58.59 | a | 57.26 | 73.15 | ||||||||
1959 | 52.77 | 54.64 | 63.90 | b | 73.96 | c | 79.70 | a | 92.67 | 97.27 | a | 90.00 | c | 85.69 | a | 73.70 | d | 58.20 | 46.90 | 72.45 | ||||||
1960 | 38.97 | 50.10 | 68.23 | 73.07 | 81.19 | 94.87 | 98.37 | a | 96.00 | a | 89.77 | 69.90 | 59.97 | a | 35.23 | a | 71.30 | |||||||||
1961 | 43.19 | 57.50 | 62.55 | 71.93 | b | 81.35 | 95.82 | b | 96.48 | 91.00 | a | 81.80 | 72.81 | 56.53 | 35.23 | 70.52 | ||||||||||
1962 | 35.45 | 47.11 | 56.35 | 77.00 | a | 78.52 | 89.33 | 94.23 | 95.17 | a | 86.33 | 74.00 | 62.53 | 48.68 | 70.39 | |||||||||||
1963 | 41.84 | 58.75 | 63.10 | 69.28 | a | 85.45 | 88.96 | b | 97.43 | a | 89.20 | a | 88.25 | b | 78.16 | 59.80 | 45.55 | 72.15 | ||||||||
1964 | 47.58 | 51.48 | 58.52 | 67.28 | a | 81.10 | a | 88.33 | 95.81 | 91.48 | 84.17 | 78.97 | a | 54.77 | 48.19 | 70.64 | ||||||||||
1965 | 49.65 | 53.07 | 58.93 | a | 68.63 | 76.66 | b | 84.57 | 92.16 | 93.30 | a | 81.50 | 77.74 | 62.57 | 47.84 | 70.55 | ||||||||||
1966 | 39.06 | 47.18 | 64.35 | 74.17 | 84.38 | b | 90.86 | b | 95.86 | c | 93.03 | 86.33 | 73.74 | 62.93 | 47.35 | 71.60 | ||||||||||
1967 | 46.67 | a | 58.75 | 67.10 | a | 67.20 | 79.52 | 86.40 | 93.13 | 92.07 | a | 84.37 | 76.77 | 63.57 | 36.00 | 70.96 | ||||||||||
1968 | 26.58 | 54.17 | 62.48 | 66.80 | 79.10 | a | 92.14 | b | 93.45 | 87.77 | 85.70 | 75.17 | a | 57.90 | 43.52 | 68.73 | ||||||||||
1969 | 51.68 | 52.39 | 57.55 | 72.60 | 82.35 | 89.60 | 96.84 | 96.39 | 88.63 | 70.26 | 57.90 | 53.45 | 72.47 | |||||||||||||
1970 | 51.35 | 60.81 | a | 59.39 | 65.03 | 83.03 | 91.57 | 96.77 | 95.55 | 84.40 | 70.06 | 64.20 | 49.90 | 72.67 | ||||||||||||
1971 | 53.03 | 56.00 | 66.48 | 73.17 | 76.81 | 92.37 | 98.74 | 93.61 | 86.33 | 68.16 | 58.53 | 44.03 | 72.27 | |||||||||||||
1972 | 54.26 | 60.69 | 73.23 | 74.93 | 82.90 | 89.00 | 97.46 | c | 92.58 | 85.97 | 67.65 | 53.87 | 46.35 | 73.24 | ||||||||||||
1973 | 41.81 | 50.79 | 52.45 | b | 65.43 | 81.48 | 91.57 | 94.97 | 94.03 | 87.40 | 77.77 | 61.83 | 53.68 | 71.10 | ||||||||||||
1974 | 45.65 | 54.89 | 67.03 | 71.63 | 84.55 | 97.90 | 94.06 | 93.45 | 86.62 | a | 73.77 | 59.17 | 47.19 | 72.99 | ||||||||||||
1975 | 42.55 | b | 54.04 | 58.71 | 64.80 | 78.71 | 92.07 | 94.90 | 94.29 | 84.17 | 75.55 | 59.37 | 47.19 | 70.53 | ||||||||||||
1976 | 51.03 | 58.97 | 61.19 | 71.03 | a | 81.10 | 91.10 | 95.47 | a | 92.83 | a | 82.80 | 70.26 | 61.40 | 50.17 | a | 72.28 | |||||||||
1977 | 41.29 | 57.21 | 59.57 | a | 73.07 | a | 76.93 | a | 93.90 | 95.03 | a | 93.39 | 86.87 | 76.71 | 63.20 | 58.06 | 72.94 | |||||||||
1978 | 51.32 | 54.13 | e | 65.45 | 72.20 | 79.94 | 93.47 | 97.06 | 94.71 | 85.77 | 77.81 | 58.47 | 40.32 | 72.55 | ||||||||||||
1979 | 40.97 | 53.41 | a | 60.71 | 72.20 | 77.50 | a | 90.87 | 98.45 | 92.52 | 91.63 | 78.23 | 54.70 | 48.39 | 71.63 | |||||||||||
1980 | 49.29 | 57.72 | 59.19 | 71.10 | 76.74 | 93.47 | 97.77 | ----- | z | 87.67 | 73.29 | 63.28 | a | 56.87 | 71.49 | a | ||||||||||
1981 | 52.68 | 59.79 | 62.37 | a | 77.07 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 62.97 | h | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 45.78 | 54.79 | 62.14 | 71.21 | 80.58 | 91.45 | 95.44 | 92.54 | 85.74 | 74.63 | 59.72 | 48.16 | 71.61 | |||||||||||||
S.D. | 7.36 | 4.79 | 4.14 | 3.88 | 3.48 | 2.88 | 2.23 | 2.00 | 2.85 | 3.59 | 4.50 | 5.22 | 1.34 | |||||||||||||
SKEW | -1.26 | -0.06 | 0.19 | 0.18 | -0.42 | -0.23 | -0.17 | 0.06 | 0.40 | 0.06 | 0.57 | -0.51 | -0.26 | |||||||||||||
MAX | 56.77 | 66.30 | 73.23 | 81.41 | 85.97 | 97.90 | 99.58 | 97.07 | 92.77 | 84.03 | 76.07 | 58.06 | 74.44 | |||||||||||||
MIN | 23.72 | 44.39 | 52.45 | 64.47 | 71.06 | 84.57 | 90.55 | 87.77 | 81.40 | 67.65 | 48.90 | 35.23 | 68.69 | |||||||||||||
YRS | 52 | 54 | 54 | 50 | 52 | 49 | 49 | 46 | 49 | 51 | 53 | 53 | 38 |