YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1955 | ----- | z | 0.00 | q | 0.03 | 0.35 | 1.70 | a | 0.51 | 0.13 | 1.95 | 0.00 | e | 0.28 | 0.00 | 0.12 | 5.07 | b | ||||||||
1956 | 0.27 | 0.01 | 0.20 | d | 0.00 | l | 1.37 | 0.25 | 2.44 | 1.24 | 0.00 | 0.00 | f | 0.74 | 0.00 | 6.52 | b | |||||||||
1957 | 0.06 | h | 0.18 | 0.45 | 2.65 | 2.82 | b | 3.63 | 1.98 | 1.00 | g | 1.30 | 0.40 | b | 0.46 | g | 0.00 | 13.41 | c | |||||||
1958 | 0.51 | 0.03 | u | 0.81 | 0.71 | 5.73 | 1.52 | 7.34 | 1.99 | 0.44 | 0.21 | 0.25 | 0.02 | 19.53 | a | |||||||||||
1959 | 0.25 | 0.22 | 0.04 | 0.43 | 1.24 | 3.64 | 3.17 | 2.21 | 0.74 | 1.69 | 0.00 | ----- | z | 13.63 | a | |||||||||||
1960 | ----- | z | ----- | z | 0.11 | 2.20 | 0.70 | 1.52 | 1.81 | 0.04 | 1.18 | 1.36 | 0.11 | 0.72 | 9.75 | b | ||||||||||
1961 | 0.00 | 0.47 | 0.78 | o | 0.21 | 1.86 | 4.73 | 2.98 | 5.29 | 1.02 | 0.57 | 0.77 | 0.15 | a | 18.05 | a | ||||||||||
1962 | 0.31 | 0.03 | 0.39 | 0.54 | a | 3.30 | 3.87 | 2.98 | 0.42 | 1.14 | 0.22 | 0.49 | 0.00 | 13.69 | ||||||||||||
1963 | 0.15 | 0.00 | 0.55 | 0.00 | 1.26 | 1.01 | ----- | z | 0.69 | 1.09 | 0.00 | ----- | z | 0.10 | 4.85 | b | ||||||||||
1964 | 0.00 | 0.03 | a | 0.00 | 0.51 | 5.23 | 0.37 | 1.86 | 0.32 | 0.95 | 0.00 | 0.13 | 0.07 | 9.47 | ||||||||||||
1965 | 0.08 | 0.05 | 1.91 | 0.02 | 2.96 | 5.35 | 1.80 | 1.68 | 1.26 | 1.04 | 0.00 | 0.91 | 17.06 | |||||||||||||
1966 | 0.40 | 0.34 | ----- | z | 0.96 | 0.18 | 0.62 | 3.83 | 1.49 | 1.85 | 0.35 | 0.00 | 0.15 | 10.17 | a | |||||||||||
1967 | 0.13 | 0.00 | 0.00 | 0.21 | 2.73 | 7.25 | 2.49 | 3.97 | 1.39 | 0.05 | 0.12 | 0.01 | 18.35 | |||||||||||||
1968 | 0.00 | 0.10 | ----- | z | 0.44 | 1.84 | 1.05 | 3.56 | 3.45 | 0.10 | ----- | z | 0.00 | 0.13 | 10.67 | b | ||||||||||
1969 | ----- | z | 0.00 | 0.77 | 1.45 | 2.15 | 2.12 | 5.75 | 1.68 | 4.25 | 1.61 | 0.00 | 0.00 | 19.78 | a | |||||||||||
1970 | 0.00 | 0.00 | 0.60 | ----- | z | 2.02 | 2.05 | 1.52 | 1.84 | 1.04 | 0.34 | 0.01 | 0.00 | 9.42 | a | |||||||||||
1971 | 0.13 | 0.40 | 0.03 | 1.18 | 2.98 | 2.13 | 1.94 | ----- | z | 0.53 | ----- | z | 1.66 | 0.12 | 11.10 | b | ||||||||||
1972 | 0.15 | 0.05 | 0.03 | 0.43 | 0.99 | 1.78 | 3.89 | 4.25 | 0.63 | ----- | z | ----- | z | ----- | z | 12.20 | c | |||||||||
1973 | 0.06 | 0.00 | 2.53 | ----- | z | 1.90 | 0.68 | ----- | z | 0.98 | 2.59 | 0.56 | 0.18 | 0.12 | 9.60 | b | ||||||||||
1974 | 0.02 | 0.00 | 0.78 | 0.18 | 2.71 | 1.89 | ----- | z | 0.66 | ----- | z | 1.63 | 0.18 | 0.28 | 8.33 | b | ||||||||||
1975 | 0.28 | ----- | z | 0.26 | ----- | z | 1.34 | ----- | z | 1.73 | 0.61 | ----- | z | 0.00 | 0.45 | a | ----- | z | 4.67 | e | ||||||
1976 | 0.03 | ----- | z | 0.12 | 1.15 | 1.72 | 0.08 | 1.82 | 1.36 | 1.49 | ----- | z | 0.07 | ----- | z | 7.84 | c | |||||||||
1977 | 0.22 | 0.00 | ----- | z | 1.77 | 6.59 | 0.74 | 1.54 | 0.98 | 0.00 | 0.00 | 1.13 | 0.00 | 12.97 | a | |||||||||||
1978 | 0.18 | 0.52 | ----- | z | 0.70 | 3.60 | 2.40 | 0.44 | 2.49 | 0.00 | 0.23 | 0.68 | 0.17 | 11.41 | a | |||||||||||
1979 | 0.43 | 0.00 | 0.96 | 0.25 | 1.14 | 1.96 | 2.11 | 3.19 | 0.04 | 0.58 | 0.00 | b | 0.62 | 11.28 | ||||||||||||
1980 | 0.08 | b | 0.10 | 1.01 | c | 2.75 | 2.84 | 0.12 | 0.84 | 0.99 | 0.91 | 0.00 | 0.25 | 0.00 | 9.89 | |||||||||||
1981 | 0.06 | 0.00 | 1.53 | 0.24 | 1.75 | 0.30 | 2.89 | 1.11 | 2.12 | 1.80 | 0.24 | 0.10 | 12.14 | |||||||||||||
1982 | 0.04 | ----- | z | ----- | z | 0.95 | 3.27 | 7.51 | 2.88 | 1.28 | 1.67 | 1.06 | 0.44 | 0.76 | 19.86 | b | ||||||||||
1983 | 0.24 | 0.27 | 0.60 | 3.97 | 3.65 | 3.67 | 1.49 | 1.41 | 0.65 | a | 0.14 | 0.25 | b | 0.05 | 16.39 | |||||||||||
1984 | 0.05 | 0.65 | 1.10 | 2.60 | 0.56 | 1.45 | 2.04 | 0.29 | 0.52 | c | 3.47 | 0.00 | 0.02 | 12.75 | ||||||||||||
1985 | 0.30 | 0.00 | 0.10 | 1.70 | 3.60 | 0.80 | 3.15 | 0.86 | 0.79 | 1.49 | 0.47 | b | 0.04 | 13.30 | ||||||||||||
1986 | 0.00 | 0.28 | 0.25 | 0.85 | 0.10 | 3.65 | 1.24 | 2.60 | 0.93 | 2.38 | 0.32 | 0.24 | 12.84 | |||||||||||||
1987 | 0.25 | 0.65 | 1.06 | 0.00 | 3.25 | 1.94 | 2.70 | 2.75 | 1.60 | 0.00 | 0.35 | 0.35 | 14.90 | |||||||||||||
1988 | 0.75 | ----- | z | 0.05 | 0.33 | 1.58 | 2.72 | 3.86 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9.29 | f | ||||||
1989 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | 0.05 | 0.05 | j | ||
1990 | 0.61 | 0.90 | a | 0.35 | 0.20 | b | 1.42 | 0.40 | 2.91 | 1.10 | 1.04 | 0.01 | b | 0.45 | ----- | z | 9.39 | a | ||||||||
1991 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 3.28 | 1.65 | 0.04 | 1.10 | 0.88 | a | 6.95 | g | ||||
1992 | 0.05 | 0.72 | 0.91 | 0.00 | 0.78 | 3.95 | 3.74 | 2.28 | 0.17 | 0.73 | 0.76 | 0.03 | 14.12 | |||||||||||||
1993 | 0.02 | b | 0.35 | 1.03 | 1.37 | 2.88 | 1.50 | 0.94 | 5.65 | 0.32 | 2.01 | b | 0.64 | 0.01 | 16.72 | |||||||||||
1994 | 0.18 | 0.01 | 0.62 | 1.88 | 1.72 | 1.99 | 0.93 | 3.02 | 0.63 | 3.11 | 0.90 | 0.30 | 15.29 | |||||||||||||
1995 | 0.42 | 0.14 | a | 0.51 | 3.52 | 7.27 | 6.53 | 1.36 | 0.58 | 0.27 | 0.14 | 0.00 | 0.00 | 20.74 | ||||||||||||
1996 | 0.02 | 0.02 | 1.57 | 0.32 | 4.28 | 1.87 | 4.32 | 3.67 | 1.08 | 0.21 | 0.03 | 0.05 | 17.44 | |||||||||||||
1997 | 0.02 | 0.22 | 0.00 | 1.36 | 0.75 | 3.12 | 4.35 | 5.48 | 0.95 | 2.41 | p | 0.02 | 0.74 | 17.01 | a | |||||||||||
1998 | 0.00 | 0.41 | 1.21 | 1.47 | 1.73 | 1.76 | 5.45 | 2.18 | 0.21 | 0.49 | 1.56 | 0.06 | 16.53 | |||||||||||||
1999 | 0.41 | 0.15 | 0.70 | ----- | z | ----- | z | 2.47 | 1.40 | 2.94 | 1.11 | 0.02 | 0.01 | 0.00 | 9.21 | b | ||||||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.18 | 0.20 | 0.63 | 1.05 | 2.42 | 2.31 | 2.59 | 2.05 | 0.97 | 0.76 | 0.36 | 0.19 | 14.61 | |||||||||||||
S.D. | 0.19 | 0.25 | 0.59 | 1.01 | 1.62 | 1.87 | 1.49 | 1.45 | 0.81 | 0.91 | 0.43 | 0.27 | 3.00 | |||||||||||||
SKEW | 1.15 | 1.20 | 1.18 | 1.19 | 1.17 | 1.19 | 1.01 | 0.89 | 1.72 | 1.37 | 1.42 | 1.62 | 0.08 | |||||||||||||
MAX | 0.75 | 0.90 | 2.53 | 3.97 | 7.27 | 7.51 | 7.34 | 5.65 | 4.25 | 3.47 | 1.66 | 0.91 | 20.74 | |||||||||||||
MIN | 0.00 | 0.00 | 0.00 | 0.00 | 0.10 | 0.08 | 0.13 | 0.04 | 0.00 | 0.00 | 0.00 | 0.00 | 9.47 | |||||||||||||
YRS | 39 | 36 | 37 | 38 | 42 | 42 | 40 | 41 | 41 | 37 | 41 | 39 | 18 |