YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1963 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.24 | n | 0.66 | 0.65 | 0.44 | 0.26 | ----- | z | ||||
1964 | 0.32 | 0.54 | 0.36 | 0.44 | 0.40 | 0.56 | 0.48 | 0.57 | 0.35 | 0.35 | 0.38 | 0.70 | 0.70 | |||||||||||||
1965 | 0.25 | 0.15 | 1.32 | 0.25 | 0.60 | 0.66 | 0.65 | 0.60 | 0.90 | 0.16 | 1.39 | 0.37 | 1.39 | |||||||||||||
1966 | 0.50 | 0.15 | 0.10 | 0.32 | 0.65 | 0.60 | 0.50 | 0.80 | 0.00 | 0.80 | 0.36 | 1.66 | 1.66 | |||||||||||||
1967 | 0.90 | 0.25 | 0.75 | ----- | z | 0.10 | 0.46 | 0.48 | 0.45 | 0.59 | 0.42 | 0.34 | 0.36 | a | ----- | z | ||||||||||
1968 | 0.16 | 0.20 | 0.20 | 0.32 | 0.47 | 0.30 | 0.82 | 1.00 | 0.32 | 0.62 | 0.16 | a | 0.14 | 1.00 | a | |||||||||||
1969 | 0.68 | 0.13 | 0.07 | 0.17 | 0.42 | 1.10 | 0.53 | 0.40 | 0.33 | 0.83 | 0.25 | a | 0.61 | b | 1.10 | c | ||||||||||
1970 | 0.30 | 0.15 | 0.30 | 0.38 | 0.09 | 0.54 | 0.31 | 0.92 | 1.26 | 0.52 | a | 0.41 | 0.27 | b | 1.26 | c | ||||||||||
1971 | 0.30 | b | 0.28 | a | 0.33 | a | 0.42 | 0.69 | 0.26 | 0.57 | 0.41 | 0.53 | 0.46 | 0.54 | a | 0.97 | d | 0.97 | i | |||||||
1972 | 0.42 | 0.06 | 0.58 | 0.84 | c | 0.53 | a | 0.63 | 0.06 | 0.53 | a | 0.68 | 1.06 | f | 0.41 | c | 0.41 | a | 1.06 | o | ||||||
1973 | 0.32 | 0.35 | d | 0.08 | 0.42 | 0.53 | 0.79 | ----- | z | 0.75 | 0.30 | 0.09 | 0.31 | 0.29 | ----- | z | ||||||||||
1974 | 0.56 | 0.33 | 0.35 | 0.68 | 0.12 | 0.91 | 0.42 | 0.56 | 0.25 | 0.30 | e | 0.24 | 0.32 | 0.91 | e | |||||||||||
1975 | 0.45 | 0.40 | 0.81 | 0.16 | 0.68 | 0.32 | 1.03 | 0.21 | 0.40 | 0.50 | 0.98 | b | 0.30 | a | 1.03 | c | ||||||||||
1976 | 0.31 | 0.62 | b | 0.34 | 0.23 | 0.18 | 0.24 | 0.30 | 0.31 | 0.74 | a | 0.26 | 0.23 | 0.05 | 0.74 | c | ||||||||||
1977 | 0.25 | 0.27 | 0.21 | 0.19 | 0.45 | 0.11 | 1.24 | 0.72 | a | 0.42 | a | 0.68 | 0.41 | 0.42 | 1.24 | b | ||||||||||
1978 | 0.39 | 0.50 | 0.45 | 0.25 | a | 0.57 | a | 0.17 | 0.42 | 0.31 | 0.33 | 0.73 | a | 0.35 | 0.88 | 0.88 | c | |||||||||
1979 | 0.67 | 0.26 | 0.27 | 0.15 | 0.61 | 1.09 | 0.27 | 0.68 | 0.15 | 0.80 | 0.43 | b | 0.07 | 1.09 | b | |||||||||||
1980 | 0.35 | 0.47 | 0.54 | 0.31 | 0.31 | 0.00 | 0.31 | 0.38 | a | 0.41 | 0.43 | 0.25 | 0.27 | 0.54 | a | |||||||||||
1981 | 0.10 | 0.09 | 0.28 | 0.58 | 1.20 | a | 0.47 | 0.68 | 0.22 | 0.66 | 0.64 | a | 0.33 | 0.98 | b | 1.20 | d | |||||||||
1982 | 0.78 | 0.13 | 0.65 | 0.08 | h | 0.87 | a | 0.84 | 0.55 | 0.27 | 1.27 | c | 0.55 | 0.46 | 0.20 | 1.27 | l | |||||||||
1983 | 0.23 | 0.21 | 0.26 | e | 0.38 | 0.85 | 0.57 | 0.24 | a | 1.20 | c | 0.31 | c | 0.58 | 0.95 | 1.20 | 1.20 | l | ||||||||
1984 | 0.21 | b | 0.17 | 0.43 | c | 0.40 | a | 0.76 | 2.15 | 0.61 | 0.93 | a | 0.41 | e | 0.33 | 0.56 | 0.44 | 2.15 | l | |||||||
1985 | 0.46 | a | 0.27 | b | 0.50 | 0.23 | 0.55 | 0.31 | b | 1.49 | c | 0.17 | b | 1.25 | e | 1.02 | a | 1.00 | d | 0.41 | 1.49 | t | ||||
1986 | 0.27 | a | 0.40 | a | ----- | z | 0.37 | 0.34 | 0.50 | a | 0.73 | 0.37 | 0.76 | a | 0.74 | 0.27 | 0.17 | ----- | z | |||||||
1987 | 0.24 | 0.21 | b | 0.34 | 0.47 | 0.38 | 0.58 | 0.71 | 0.42 | 0.27 | c | 0.36 | 0.43 | 0.27 | 0.71 | e | ||||||||||
1988 | 0.46 | 0.46 | 0.16 | 0.16 | 0.29 | c | 0.83 | c | 0.30 | e | 0.48 | c | 0.69 | 0.12 | 0.94 | c | 0.45 | 0.94 | q | |||||||
1989 | 0.17 | 1.12 | 0.54 | 0.83 | 0.24 | a | 0.47 | 0.60 | b | 0.54 | 0.60 | 0.57 | 0.43 | 0.46 | b | 1.12 | e | |||||||||
1990 | 0.15 | e | 0.20 | b | 0.34 | a | 0.65 | 0.54 | 0.20 | 0.34 | 0.36 | 0.42 | 0.80 | 0.61 | 0.21 | 0.80 | h | |||||||||
1991 | 0.08 | 0.30 | b | 0.31 | 0.27 | 0.40 | 0.82 | b | 0.23 | c | 0.63 | 0.94 | b | 0.50 | 0.35 | 0.10 | 0.94 | i | ||||||||
1992 | 0.15 | 0.17 | 0.88 | 0.80 | a | 0.63 | 0.35 | a | 0.60 | 0.47 | 0.19 | 0.61 | 0.86 | 0.15 | 0.88 | b | ||||||||||
1993 | 0.80 | s | 0.78 | c | 0.73 | 0.53 | a | 0.53 | a | 0.64 | e | 1.31 | b | 0.30 | a | 0.68 | b | 0.92 | 0.03 | d | 0.11 | ----- | z | |||
1994 | 0.13 | 0.47 | 0.22 | 0.33 | 0.60 | 0.46 | 0.10 | 0.27 | 0.50 | b | 0.84 | b | 0.24 | 0.16 | 0.84 | d | ||||||||||
1995 | 0.19 | 1.40 | a | 1.06 | 0.34 | 0.51 | b | 0.39 | 0.71 | a | 0.41 | 0.92 | b | 0.29 | 0.62 | 0.33 | 1.40 | f | ||||||||
1996 | 0.24 | b | 1.55 | b | 0.40 | 0.23 | 0.35 | 0.40 | 0.46 | 0.24 | s | 0.51 | 0.80 | 0.33 | 0.40 | 1.55 | w | |||||||||
1997 | 0.37 | b | 0.31 | 0.36 | 0.48 | a | 0.37 | 0.67 | 0.17 | 2.64 | 0.52 | 0.52 | 0.30 | 0.10 | b | 2.64 | e | |||||||||
1998 | 0.16 | 0.13 | 0.23 | 0.64 | 0.13 | 0.27 | 0.66 | 0.45 | 0.31 | 0.48 | 0.21 | 0.08 | 0.66 | |||||||||||||
1999 | 0.29 | 0.19 | 0.08 | 0.27 | 0.24 | 0.31 | 0.22 | 0.30 | 0.19 | 0.25 | 0.02 | 0.24 | f | 0.31 | f | |||||||||||
2000 | 0.40 | j | 0.81 | d | 0.41 | d | 0.55 | b | 0.29 | 0.31 | 1.05 | c | 0.71 | i | 0.87 | c | 0.33 | 0.31 | 0.26 | e | ----- | z | ||||
2001 | 0.21 | a | 0.17 | 0.24 | 0.65 | 0.42 | 0.54 | 0.53 | 0.50 | 0.51 | 0.35 | 0.86 | d | 0.42 | 0.86 | e | ||||||||||
2002 | 0.15 | 0.15 | 0.39 | 0.30 | 0.11 | 0.03 | 0.34 | 0.24 | 1.09 | c | 0.20 | 0.61 | c | 0.80 | 1.09 | f | ||||||||||
2003 | 0.06 | a | 0.25 | a | 0.14 | c | 0.28 | 0.22 | 0.30 | 0.30 | 0.64 | 0.85 | a | 0.07 | ----- | z | ----- | z | ----- | z | ||||||
2004 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.46 | x | 0.63 | l | 0.20 | t | 1.35 | o | 0.21 | p | ----- | z |
2005 | 0.16 | y | 0.30 | 0.80 | 0.80 | 0.61 | 0.45 | 0.34 | 0.68 | 1.10 | 0.70 | g | 1.17 | b | 0.93 | c | ----- | z | ||||||||
2006 | 0.45 | h | 0.32 | 0.59 | 0.00 | f | 0.05 | 0.72 | 0.89 | 0.14 | h | 0.38 | 0.64 | x | 0.38 | 0.11 | ----- | z | ||||||||
2007 | 0.53 | 0.32 | 0.42 | 0.49 | 0.34 | 0.23 | 0.23 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | |||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.33 | 0.37 | 0.42 | 0.41 | 0.45 | 0.52 | 0.54 | 0.57 | 0.58 | 0.51 | 0.48 | 0.42 | 1.01 | |||||||||||||
S.D. | 0.20 | 0.32 | 0.27 | 0.20 | 0.24 | 0.36 | 0.32 | 0.41 | 0.32 | 0.24 | 0.30 | 0.35 | 0.30 | |||||||||||||
SKEW | 1.09 | 2.21 | 1.24 | 0.70 | 0.60 | 2.18 | 1.08 | 3.38 | 0.61 | 0.04 | 1.16 | 1.64 | 0.39 | |||||||||||||
MAX | 0.90 | 1.55 | 1.32 | 0.84 | 1.20 | 2.15 | 1.49 | 2.64 | 1.27 | 1.02 | 1.39 | 1.66 | 1.66 | |||||||||||||
MIN | 0.06 | 0.06 | 0.07 | 0.15 | 0.05 | 0.00 | 0.06 | 0.17 | 0.00 | 0.07 | 0.02 | 0.05 | 0.54 | |||||||||||||
YRS | 39 | 43 | 42 | 40 | 43 | 43 | 42 | 39 | 43 | 40 | 42 | 41 | 16 |