YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1935 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1936 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1937 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1938 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1939 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1940 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1941 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1942 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1943 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1944 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1948 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1949 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1950 | ----- | z | ----- | z | 71.88 | w | 73.40 | 79.97 | 89.20 | 84.39 | 86.77 | 77.97 | 80.06 | 64.37 | 56.35 | 76.94 | c | |||||||||
1951 | 49.55 | 56.57 | 62.20 | a | 70.90 | 78.19 | 86.70 | 94.65 | 92.50 | a | 86.70 | 74.26 | 57.96 | b | 51.94 | 71.84 | ||||||||||
1952 | 53.39 | 56.59 | 59.16 | 69.00 | 80.90 | 93.63 | 90.48 | 94.26 | 81.67 | 74.35 | 53.87 | 46.77 | 71.17 | |||||||||||||
1953 | 58.35 | 53.96 | 67.23 | 72.34 | a | 79.29 | 96.40 | 91.58 | 89.10 | 87.37 | 71.90 | 61.72 | a | 49.38 | j | 75.39 | a | |||||||||
1954 | 55.13 | 64.62 | b | 62.04 | c | 79.07 | a | 77.13 | 90.77 | 94.39 | 89.71 | 86.87 | 73.58 | 64.50 | 56.52 | 74.53 | ||||||||||
1955 | 49.58 | 53.75 | 65.57 | a | 72.64 | b | 77.89 | c | 86.97 | a | 88.74 | 89.26 | 84.86 | a | 73.74 | 60.77 | 56.90 | 71.72 | ||||||||
1956 | 55.61 | 48.10 | 67.90 | 71.37 | 86.10 | 91.83 | 91.10 | a | 90.16 | 89.17 | 77.03 | 58.79 | a | 56.53 | a | 73.64 | ||||||||||
1957 | 53.23 | 61.75 | 60.60 | a | 66.53 | 74.26 | 87.32 | k | 94.00 | 87.00 | d | 82.30 | 66.45 | 51.63 | 58.96 | c | 68.79 | a | ||||||||
1958 | 46.39 | 54.29 | 50.35 | 64.72 | a | 78.97 | 89.63 | 91.83 | g | 90.88 | g | 81.23 | 68.58 | 62.33 | 55.77 | 65.23 | b | |||||||||
1959 | 49.10 | 54.07 | 62.83 | a | 70.34 | a | 80.39 | 89.12 | f | 89.39 | 88.65 | 85.70 | 71.00 | a | 59.00 | a | 50.00 | 69.13 | a | |||||||
1960 | 44.87 | 44.78 | b | 62.27 | a | 75.45 | a | 81.57 | a | 88.33 | 84.36 | c | 88.29 | 83.20 | 72.10 | 62.41 | a | 43.16 | 69.23 | |||||||
1961 | 50.39 | 56.54 | 60.58 | 71.87 | 82.00 | a | 88.40 | 86.65 | 86.77 | 80.43 | 74.39 | 51.47 | 48.10 | 69.80 | ||||||||||||
1962 | 47.32 | 62.11 | 59.90 | 73.24 | a | 85.97 | 87.47 | 88.97 | 92.52 | 83.07 | 75.45 | 60.54 | b | 53.68 | 72.52 | |||||||||||
1963 | 48.13 | 56.46 | 65.70 | a | 75.76 | a | 81.81 | 84.83 | a | 93.33 | d | 87.16 | 84.13 | 79.00 | 64.00 | 49.65 | 72.50 | |||||||||
1964 | 52.03 | 44.10 | 61.74 | 71.97 | a | 82.70 | a | 90.73 | 95.23 | 93.54 | e | 81.00 | 77.23 | 59.37 | 52.84 | 71.87 | ||||||||||
1965 | 57.29 | 54.32 | 55.26 | 74.21 | a | 78.03 | 85.33 | 92.35 | 87.97 | 82.48 | a | 75.00 | 68.03 | 55.29 | 72.13 | |||||||||||
1966 | 45.23 | 51.21 | 67.50 | a | 72.70 | 82.94 | 84.80 | 94.36 | c | 83.45 | 82.40 | 72.42 | 65.28 | a | 50.81 | 71.09 | ||||||||||
1967 | 55.74 | 55.61 | 70.06 | 75.67 | 80.45 | 85.00 | 87.00 | 83.32 | 80.30 | 76.55 | 60.80 | 43.67 | a | 71.18 | ||||||||||||
1968 | 50.77 | 52.96 | a | 58.68 | 69.33 | l | 77.48 | 90.50 | 87.84 | 86.81 | 82.50 | 75.23 | 55.87 | 53.50 | a | 70.19 | a | |||||||||
1969 | 58.77 | a | 53.42 | b | 52.10 | 71.41 | a | 79.13 | 84.17 | 94.19 | 91.87 | 79.73 | 65.35 | 59.57 | 52.32 | 70.17 | ||||||||||
1970 | 48.23 | 58.19 | a | 57.10 | 68.73 | 80.52 | 85.93 | 89.35 | 90.16 | 80.40 | 65.97 | 60.13 | 56.90 | 70.13 | ||||||||||||
1971 | 52.38 | b | 53.68 | 65.77 | 70.17 | 79.19 | 90.10 | 88.87 | a | 82.76 | b | 78.70 | 68.84 | 58.90 | 49.10 | 69.87 | ||||||||||
1972 | 55.97 | a | 63.28 | d | 69.81 | 77.30 | c | 78.55 | 89.37 | 85.65 | 83.61 | 77.13 | 68.77 | 49.17 | 50.03 | 70.72 | ||||||||||
1973 | 44.55 | 50.54 | 55.19 | j | 61.70 | 75.19 | 87.37 | 87.00 | 89.10 | b | 79.67 | 75.10 | 64.78 | c | 51.52 | 69.68 | a | |||||||||
1974 | 54.03 | b | 57.21 | 70.90 | 72.80 | 87.03 | 90.67 | 90.94 | 84.00 | b | 72.97 | 67.58 | 55.63 | 46.90 | 70.89 | |||||||||||
1975 | 48.35 | 47.75 | 61.65 | 67.47 | 76.21 | l | 90.26 | k | 85.40 | f | 88.87 | 79.25 | b | 75.10 | 60.73 | 55.29 | 64.94 | c | ||||||||
1976 | 52.68 | 63.00 | 61.94 | 71.87 | 76.10 | a | 87.60 | 85.65 | 88.00 | 79.93 | a | 65.74 | 54.50 | 52.10 | 69.92 | |||||||||||
1977 | 45.74 | 56.79 | 60.52 | 69.27 | 78.42 | 91.23 | 91.29 | 89.20 | a | 85.97 | 73.42 | 62.87 | 56.77 | 71.79 | ||||||||||||
1978 | 44.48 | 44.64 | 62.35 | 74.80 | 77.19 | 87.13 | 93.55 | 87.97 | a | 79.70 | 72.55 | 55.17 | 44.26 | 68.65 | ||||||||||||
1979 | 39.10 | 54.00 | 62.70 | a | 67.24 | m | 76.76 | f | 83.43 | 90.77 | 87.26 | 82.37 | 76.83 | a | 52.77 | 53.03 | 68.23 | b | ||||||||
1980 | 50.35 | 53.15 | b | 60.26 | 68.43 | 75.45 | 95.33 | 95.94 | 89.42 | 80.63 | 70.00 | 55.87 | 60.37 | a | 71.27 | |||||||||||
1981 | 52.32 | 59.21 | 59.63 | a | 74.53 | ----- | z | 97.00 | t | 90.87 | 84.03 | 77.73 | 67.55 | 62.80 | 55.71 | g | 69.85 | c | ||||||||
1982 | 53.42 | 53.04 | 63.13 | 69.50 | 77.13 | a | 84.90 | 89.90 | a | 87.81 | 80.48 | e | 68.87 | 55.83 | 46.41 | b | 69.20 | |||||||||
1983 | 48.20 | a | 49.96 | 58.32 | 63.77 | 75.03 | 85.21 | a | 91.55 | 91.84 | 86.60 | 71.63 | a | 61.17 | f | 44.78 | d | 69.72 | a | |||||||
1984 | 47.28 | b | 56.90 | 60.60 | a | 66.80 | 81.78 | h | 84.33 | 87.84 | 84.07 | a | 79.93 | 65.58 | 56.33 | 50.45 | b | 67.28 | a | |||||||
1985 | 44.57 | a | 51.96 | 61.00 | 71.33 | 78.16 | 87.57 | 91.26 | 89.90 | 84.52 | a | 70.03 | b | 60.97 | 48.37 | a | 69.97 | |||||||||
1986 | 57.87 | a | 52.74 | a | 66.23 | 74.37 | 77.16 | 81.90 | 91.03 | 88.33 | d | 79.14 | a | 66.13 | 53.47 | 44.87 | a | 69.44 | ||||||||
1987 | 44.35 | 50.79 | 57.29 | 68.80 | 76.43 | a | 85.50 | 90.71 | 85.97 | 78.52 | a | 73.61 | 57.57 | 45.65 | 67.93 | |||||||||||
1988 | 43.71 | 56.36 | a | 61.61 | 69.14 | a | 76.67 | a | 84.37 | 83.74 | 84.35 | 79.13 | 73.52 | 62.07 | 47.73 | e | 68.53 | |||||||||
1989 | 53.80 | a | 47.54 | 70.68 | 76.80 | 83.58 | 83.67 | 89.35 | 85.04 | d | 81.10 | j | 74.69 | b | 63.18 | b | 46.97 | 70.48 | a | |||||||
1990 | 49.69 | e | 53.96 | b | 59.65 | 70.74 | g | 78.19 | 96.37 | 87.23 | a | 86.74 | 80.63 | 71.00 | b | 61.72 | l | 47.23 | a | 71.07 | b | |||||
1991 | 43.43 | a | 58.61 | 62.13 | a | 71.53 | 82.54 | c | 87.60 | 83.90 | a | 83.87 | a | 75.00 | a | 71.47 | a | 52.07 | 47.33 | a | 68.29 | |||||
1992 | 45.87 | 55.93 | 65.20 | a | 73.57 | 74.80 | a | 84.21 | b | 90.86 | c | 84.52 | b | 81.70 | 75.76 | b | 54.24 | a | 47.40 | a | 69.50 | |||||
1993 | 47.32 | 50.63 | a | 61.04 | d | 72.17 | a | 80.43 | a | 87.07 | 90.71 | 85.04 | d | 81.74 | c | 69.45 | b | 54.83 | 52.03 | 69.37 | ||||||
1994 | 51.07 | a | 57.07 | 62.35 | 71.10 | 78.15 | e | 93.14 | h | 91.42 | 89.81 | d | 84.00 | 70.94 | 59.83 | 53.90 | 69.97 | a | ||||||||
1995 | 50.32 | 59.93 | 61.74 | 70.77 | 77.81 | 86.47 | 92.19 | 90.32 | 80.73 | 74.68 | 62.89 | c | 46.58 | e | 71.20 | |||||||||||
1996 | 52.45 | 55.55 | 61.65 | 74.87 | 89.55 | 89.64 | b | 89.48 | b | 85.84 | 77.31 | a | 69.03 | b | 59.17 | 53.77 | 71.53 | |||||||||
1997 | 44.23 | 48.46 | 67.63 | d | 61.10 | a | 77.14 | b | 85.37 | 91.29 | 89.43 | j | 85.10 | 72.31 | b | 54.73 | 42.59 | b | 66.36 | a | ||||||
1998 | 51.73 | a | 51.64 | 59.17 | a | 68.32 | e | 86.41 | b | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 63.46 | g | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 49.97 | 54.33 | 62.21 | 71.17 | 79.60 | 87.84 | 90.12 | 87.76 | 81.53 | 72.08 | 58.76 | 50.76 | 70.68 | |||||||||||||
S.D. | 4.56 | 4.76 | 4.35 | 3.83 | 3.51 | 3.46 | 3.12 | 2.92 | 3.30 | 3.73 | 4.35 | 4.58 | 1.54 | |||||||||||||
SKEW | 0.01 | -0.06 | -0.13 | -0.58 | 0.91 | 0.79 | -0.30 | 0.18 | 0.05 | -0.11 | -0.16 | 0.10 | 0.35 | |||||||||||||
MAX | 58.77 | 64.62 | 70.90 | 79.07 | 89.55 | 96.40 | 95.94 | 94.26 | 89.17 | 80.06 | 68.03 | 60.37 | 74.53 | |||||||||||||
MIN | 39.10 | 44.10 | 50.35 | 61.10 | 74.26 | 81.90 | 83.74 | 82.76 | 72.97 | 65.35 | 49.17 | 42.59 | 67.93 | |||||||||||||
YRS | 48 | 48 | 47 | 46 | 45 | 43 | 46 | 46 | 47 | 48 | 46 | 46 | 32 |