YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1966 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1967 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1968 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1969 | ----- | z | 0.02 | f | 1.10 | f | 1.11 | d | 3.59 | d | 3.21 | 4.22 | 2.12 | 0.80 | 2.58 | 0.74 | b | 0.31 | c | 18.68 | c | |||||
1970 | 0.05 | c | 0.09 | 2.96 | a | 1.11 | 0.41 | 1.94 | 2.97 | 2.45 | 0.77 | 0.57 | 0.42 | 0.00 | a | 13.74 | ||||||||||
1971 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1972 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1973 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1974 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1975 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1976 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1977 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1978 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1979 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1980 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1981 | ----- | z | 0.10 | 0.04 | c | ----- | z | 3.24 | 1.55 | ----- | z | 6.59 | 0.90 | 0.10 | 0.00 | 0.60 | 13.12 | c | ||||||||
1982 | 0.89 | d | 0.50 | 0.20 | 0.61 | 1.86 | 3.97 | 3.84 | 4.87 | 1.05 | 0.29 | 0.12 | 0.26 | b | 18.46 | |||||||||||
1983 | 0.26 | b | 0.12 | b | 1.39 | 0.90 | 2.50 | b | 3.69 | 1.77 | 2.31 | 0.10 | 0.39 | b | 0.67 | e | 0.49 | e | 14.59 | |||||||
1984 | 0.72 | a | 0.01 | c | 1.39 | 1.31 | 0.71 | b | 2.78 | 6.13 | a | 3.85 | 0.81 | 5.89 | b | 0.07 | 0.36 | g | 23.67 | a | ||||||
1985 | 0.46 | a | 0.20 | a | 1.44 | 1.99 | 3.59 | 0.00 | 6.59 | 0.73 | a | 1.42 | d | 0.49 | 0.42 | 0.22 | b | 17.55 | ||||||||
1986 | 0.00 | g | 0.19 | 0.31 | 0.37 | d | 1.09 | 2.67 | a | 2.73 | e | 6.41 | 0.98 | 1.17 | b | 0.70 | 0.32 | b | 16.94 | a | ||||||
1987 | 1.05 | 1.33 | a | 1.33 | 0.17 | 2.71 | e | 2.88 | 0.79 | 4.29 | b | 0.61 | c | 0.36 | 0.00 | e | 0.59 | d | 16.11 | |||||||
1988 | 0.00 | e | ----- | z | ----- | z | 0.16 | 1.06 | a | 1.34 | a | 1.29 | 1.50 | ----- | z | 0.14 | 0.15 | a | ----- | z | 5.64 | d | ||||
1989 | 0.15 | 0.66 | c | ----- | z | 0.44 | d | 1.65 | f | 2.00 | 1.76 | d | 1.69 | 1.72 | a | 0.30 | 0.01 | 0.58 | 9.31 | b | ||||||
1990 | 0.45 | a | 0.54 | c | 0.86 | 1.83 | 3.97 | b | 0.60 | 4.88 | b | 1.88 | 1.62 | a | 1.40 | f | 0.30 | 0.17 | d | 17.10 | a | |||||
1991 | 0.00 | 0.00 | 0.30 | 1.29 | 1.67 | c | 2.50 | 2.85 | 3.25 | b | 0.76 | 0.94 | 1.50 | a | 0.33 | g | 15.06 | a | ||||||||
1992 | 0.17 | e | 0.00 | f | 2.03 | 1.48 | 1.68 | a | 1.58 | b | 1.32 | d | 4.27 | 0.02 | 0.05 | 0.32 | g | 0.03 | o | 12.60 | c | |||||
1993 | 0.01 | d | 0.08 | c | 1.49 | 0.66 | 0.50 | d | 0.17 | a | 3.30 | 2.87 | 0.28 | c | 0.71 | 0.26 | l | 0.07 | 10.14 | a | ||||||
1994 | 0.43 | d | 0.00 | 1.03 | a | 1.26 | b | 4.65 | d | 2.39 | 0.87 | b | 2.92 | 1.28 | c | 2.68 | f | 0.37 | 0.12 | b | 15.32 | a | ||||
1995 | 0.00 | c | 0.31 | a | 0.90 | c | 3.68 | c | 7.77 | f | 3.32 | d | 1.61 | g | 0.20 | d | 1.23 | a | 0.00 | 0.03 | 0.00 | a | 9.67 | b | ||
1996 | 0.21 | c | 0.11 | 0.15 | 0.05 | a | 1.88 | d | 0.71 | a | 7.49 | c | 4.24 | c | 1.55 | 0.45 | g | 0.26 | a | 0.18 | a | 16.83 | a | |||
1997 | 0.61 | e | 0.19 | a | 0.23 | 2.29 | a | 2.61 | d | 4.67 | d | 0.92 | 4.48 | c | 2.65 | c | 0.30 | g | 1.45 | c | 0.00 | 20.10 | a | |||
1998 | 0.00 | 0.16 | d | 2.04 | c | 1.61 | 0.83 | e | 0.30 | a | 6.96 | e | 3.08 | c | 0.40 | a | 0.45 | b | 1.33 | c | 0.54 | b | 17.70 | |||
1999 | 0.00 | 0.00 | 0.14 | 4.62 | b | 0.75 | b | 0.55 | c | 2.86 | a | 4.61 | b | 1.40 | d | 0.25 | a | 0.50 | a | 0.10 | c | 15.78 | ||||
2000 | 0.43 | m | 0.06 | j | 1.11 | b | 0.29 | d | 1.06 | b | 1.66 | e | 2.94 | l | 5.96 | g | 0.74 | b | 0.80 | g | 0.10 | f | 0.89 | d | 5.75 | f |
2001 | 0.60 | f | 0.17 | 0.65 | d | 0.42 | 4.76 | i | 1.41 | d | 1.61 | l | 1.07 | b | 0.02 | l | 0.00 | 0.30 | l | 0.03 | d | 3.75 | e | |||
2002 | 0.58 | a | 0.02 | c | 0.16 | b | 0.19 | b | 0.91 | h | 0.05 | b | 2.03 | f | 0.11 | 0.58 | 0.08 | 0.17 | b | 0.05 | 1.99 | b | ||||
2003 | 0.00 | 0.09 | d | 1.85 | 0.63 | b | 0.84 | i | 2.01 | d | 2.88 | b | 0.47 | a | 1.74 | c | 0.07 | a | 0.07 | c | 0.04 | a | 9.85 | a | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.30 | 0.23 | 1.00 | 1.19 | 2.02 | 1.92 | 3.32 | 2.93 | 1.02 | 0.74 | 0.44 | 0.26 | 16.28 | |||||||||||||
S.D. | 0.33 | 0.31 | 0.79 | 1.11 | 1.27 | 1.29 | 2.11 | 1.82 | 0.61 | 1.35 | 0.47 | 0.26 | 1.73 | |||||||||||||
SKEW | 0.82 | 2.34 | 0.63 | 1.63 | 0.51 | 0.24 | 0.65 | 0.25 | 0.61 | 3.10 | 1.18 | 0.84 | -0.20 | |||||||||||||
MAX | 1.05 | 1.33 | 2.96 | 4.62 | 4.65 | 4.67 | 7.49 | 6.59 | 2.65 | 5.89 | 1.50 | 0.89 | 18.46 | |||||||||||||
MIN | 0.00 | 0.00 | 0.04 | 0.05 | 0.41 | 0.00 | 0.79 | 0.11 | 0.02 | 0.00 | 0.00 | 0.00 | 13.74 | |||||||||||||
YRS | 20 | 21 | 22 | 24 | 20 | 25 | 20 | 24 | 23 | 20 | 21 | 21 | 7 |