YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1951 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1952 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1953 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1954 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1955 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1956 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1957 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1958 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1959 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1960 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1961 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1962 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1963 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1964 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1965 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1966 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1967 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1968 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1969 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1970 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1971 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1972 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1973 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1974 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1975 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1976 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1977 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1978 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1979 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1980 | ----- | z | ----- | z | ----- | z | ----- | z | 38.92 | e | 48.31 | a | 56.68 | 51.94 | 43.13 | 30.32 | 21.20 | 21.37 | a | 38.98 | d | |||||
1981 | 14.90 | a | 12.32 | 23.81 | 34.60 | 40.42 | 49.43 | 56.40 | a | 52.87 | 45.86 | a | 31.32 | 23.90 | 14.48 | 33.36 | ||||||||||
1982 | 8.60 | a | 9.74 | a | 22.00 | a | 25.47 | 38.74 | 45.23 | 53.58 | 56.23 | 44.57 | 31.10 | 17.93 | 14.87 | 30.67 | ||||||||||
1983 | 15.60 | a | 17.07 | 24.16 | 27.00 | 37.13 | 47.53 | 55.26 | 57.55 | 42.43 | 31.87 | a | 20.53 | 3.81 | 31.66 | |||||||||||
1984 | 8.87 | 19.24 | 21.16 | 28.17 | 40.61 | 47.53 | 55.29 | 55.03 | 41.28 | a | 30.10 | b | 21.21 | a | 11.77 | a | 31.69 | |||||||||
1985 | 5.39 | 8.36 | 21.35 | 33.07 | 41.35 | 47.41 | a | 56.00 | 50.42 | 40.43 | 28.87 | a | 11.43 | 6.39 | 29.21 | |||||||||||
1986 | 18.90 | 16.71 | 26.94 | 33.73 | 38.61 | 51.17 | a | 54.19 | 52.61 | 42.77 | 33.00 | 20.00 | a | 12.43 | a | 33.42 | ||||||||||
1987 | 11.34 | b | 18.71 | 22.35 | 29.30 | 42.87 | 50.37 | 55.36 | c | 53.16 | 41.93 | a | 29.40 | a | 23.30 | 13.18 | c | 32.61 | ||||||||
1988 | 5.30 | a | 13.96 | a | 21.10 | 27.47 | 40.30 | a | 53.20 | 54.65 | 53.58 | 42.83 | 33.32 | 20.97 | 11.13 | 31.48 | ||||||||||
1989 | 11.97 | 4.46 | 23.48 | 30.18 | b | 40.74 | 48.80 | 55.74 | 52.74 | 42.85 | c | 31.23 | a | 21.53 | 6.48 | d | 30.85 | |||||||||
1990 | 15.21 | b | 13.29 | 23.32 | 31.37 | 35.45 | 50.77 | 53.77 | a | 52.23 | 47.80 | 29.87 | a | 23.93 | 3.93 | a | 31.74 | |||||||||
1991 | 6.77 | a | 17.21 | 20.55 | 29.50 | 41.16 | 50.80 | 55.19 | 54.48 | 42.53 | 29.16 | 20.30 | 13.71 | 31.78 | ||||||||||||
1992 | 13.29 | 21.72 | 25.68 | 31.48 | a | 40.90 | 49.07 | 52.63 | a | 50.23 | a | 42.90 | a | 31.94 | 18.20 | 8.23 | a | 32.19 | ||||||||
1993 | 7.87 | a | 11.82 | 25.61 | 30.13 | 40.74 | 47.27 | 52.90 | 52.84 | 40.27 | 31.03 | 15.97 | 14.53 | a | 30.92 | |||||||||||
1994 | 15.50 | a | 9.04 | 23.42 | 30.93 | 41.29 | 51.90 | a | 52.60 | a | 54.71 | 44.72 | a | 33.65 | 20.80 | 16.42 | 32.91 | |||||||||
1995 | 12.93 | a | 17.32 | 21.58 | 26.80 | 37.90 | 46.79 | a | 52.87 | a | 54.39 | 44.31 | a | 29.97 | 21.27 | 14.81 | 31.74 | |||||||||
1996 | 6.32 | 12.97 | 17.63 | a | 29.20 | 41.46 | c | 49.17 | 55.48 | 51.00 | 43.73 | 32.58 | 20.57 | 15.00 | a | 31.26 | ||||||||||
1997 | 10.83 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 10.83 | k |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 11.15 | 14.00 | 22.76 | 29.90 | 39.92 | 49.10 | 54.62 | 53.29 | 43.20 | 31.10 | 20.18 | 11.91 | 31.72 | |||||||||||||
S.D. | 4.11 | 4.63 | 2.30 | 2.59 | 1.87 | 2.07 | 1.35 | 1.96 | 1.89 | 1.47 | 3.03 | 4.73 | 1.07 | |||||||||||||
SKEW | 0.11 | -0.30 | -0.19 | 0.15 | -0.84 | 0.16 | -0.22 | 0.38 | 0.65 | 0.21 | -1.43 | -0.22 | -0.36 | |||||||||||||
MAX | 18.90 | 21.72 | 26.94 | 34.60 | 42.87 | 53.20 | 56.68 | 57.55 | 47.80 | 33.65 | 23.93 | 21.37 | 33.42 | |||||||||||||
MIN | 5.30 | 4.46 | 17.63 | 25.47 | 35.45 | 45.23 | 52.60 | 50.23 | 40.27 | 28.87 | 11.43 | 3.81 | 29.21 | |||||||||||||
YRS | 17 | 16 | 16 | 16 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 16 |