YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1967 | ----- | z | ----- | z | 0.19 | 0.83 | 0.94 | 0.94 | 0.32 | 0.30 | 0.41 | 0.33 | 0.23 | 0.17 | ----- | z | ||||||||||
1968 | 0.20 | 0.03 | 0.60 | 0.68 | 0.28 | 0.90 | 1.69 | 1.10 | 1.20 | 0.26 | 0.22 | 0.03 | 1.69 | |||||||||||||
1969 | 0.23 | 0.16 | 0.02 | 0.41 | 0.58 | 0.97 | 0.36 | 0.32 | 1.57 | 0.66 | 0.04 | 0.11 | 1.57 | |||||||||||||
1970 | 0.17 | 0.10 | 1.08 | 0.56 | 1.51 | 0.78 | 0.65 | 0.30 | 0.30 | 0.73 | 0.32 | 0.12 | 1.51 | |||||||||||||
1971 | 0.27 | 0.07 | 0.22 | 1.47 | 0.18 | 0.90 | 0.87 | 0.30 | 0.38 | 0.92 | 0.13 | 0.03 | 1.47 | |||||||||||||
1972 | 0.06 | 0.22 | 0.27 | 0.47 | 0.41 | 0.63 | 0.42 | 0.45 | 1.09 | 0.42 | 0.06 | 0.37 | 1.09 | |||||||||||||
1973 | 0.02 | 0.10 | 0.46 | 0.25 | 2.70 | 1.40 | 0.86 | 0.56 | 0.79 | 0.82 | 0.20 | 0.16 | 2.70 | |||||||||||||
1974 | 0.15 | 0.08 | 0.50 | 0.88 | 1.25 | 0.69 | 0.59 | 4.49 | 0.38 | 0.29 | 0.12 | 0.36 | 4.49 | |||||||||||||
1975 | 0.15 | 0.07 | 0.60 | 1.06 | 1.11 | 0.74 | 3.65 | 0.16 | 0.83 | 0.71 | 0.24 | 0.32 | 3.65 | |||||||||||||
1976 | 0.20 | 0.23 | 0.35 | 0.72 | 0.21 | 0.88 | 0.59 | 2.22 | 0.22 | 0.15 | 0.01 | 0.21 | 2.22 | |||||||||||||
1977 | 0.14 | 0.15 | 0.33 | 0.33 | 1.68 | 1.51 | 1.68 | 0.79 | 1.63 | 0.87 | 0.46 | 0.63 | 1.68 | |||||||||||||
1978 | 0.04 | 0.00 | 0.03 | 0.27 | 0.70 | 0.61 | 1.32 | 0.70 | 1.49 | 0.29 | 0.35 | 0.47 | 1.49 | |||||||||||||
1979 | 0.40 | 0.30 | 0.32 | 0.62 | 1.05 | 1.54 | ----- | z | 1.07 | 0.35 | 0.31 | 0.35 | 0.00 | ----- | z | |||||||||||
1980 | 0.25 | 0.07 | 0.10 | 0.18 | 0.46 | 2.00 | 0.51 | 1.06 | 1.80 | 1.86 | 0.39 | 0.10 | 2.00 | |||||||||||||
1981 | 0.08 | 0.25 | 0.38 | 0.37 | 0.70 | 1.86 | 0.36 | 1.07 | 1.66 | 0.98 | 0.11 | 0.05 | 1.86 | |||||||||||||
1982 | 0.28 | 0.02 | 0.52 | 0.35 | 0.67 | 1.55 | ----- | z | 0.62 | 1.06 | 1.05 | 0.28 | 0.58 | ----- | z | |||||||||||
1983 | 0.60 | 0.08 | 0.65 | 0.04 | 0.37 | 1.23 | 0.87 | 1.14 | 0.96 | 0.47 | 0.23 | 0.05 | 1.23 | |||||||||||||
1984 | 0.11 | 0.15 | 0.16 | 0.54 | 0.23 | ----- | z | 0.63 | 0.55 | 0.12 | 1.85 | 0.17 | 0.30 | ----- | z | |||||||||||
1985 | 0.08 | 0.12 | 0.32 | 1.14 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ||||
1986 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1987 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1988 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1989 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1990 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.26 | ----- | z | |
1991 | 0.11 | 0.28 | 0.31 | 1.20 | 1.70 | 1.94 | 0.82 | 2.26 | 1.75 | 0.91 | 0.29 | 0.36 | 2.26 | |||||||||||||
1992 | 0.18 | 0.22 | 0.47 | 0.50 | 0.50 | 1.21 | 0.41 | 0.50 | 0.50 | 0.29 | 0.48 | 0.39 | 1.21 | |||||||||||||
1993 | 0.20 | 0.04 | 0.21 | 0.28 | 0.50 | 1.36 | 3.32 | 2.60 | 0.15 | 0.36 | 0.21 | 0.41 | 3.32 | |||||||||||||
1994 | 0.33 | 0.35 | 0.34 | 0.33 | 1.46 | 0.50 | 1.40 | 0.44 | 0.63 | 0.54 | 0.86 | 0.28 | 1.46 | |||||||||||||
1995 | 0.38 | 0.44 | 0.94 | 0.18 | 1.49 | 0.69 | 0.88 | 2.70 | 1.10 | 0.62 | 0.47 | 0.55 | 2.70 | |||||||||||||
1996 | 0.63 | 0.46 | 0.48 | 0.43 | 2.77 | 0.49 | 0.69 | 0.22 | 0.89 | 0.75 | 1.02 | d | 0.35 | 2.77 | d | |||||||||||
1997 | ----- | z | 0.10 | g | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.47 | 0.65 | ----- | z | ----- | z | 0.00 | f | ----- | z | ||
1998 | 0.00 | l | 0.15 | c | 0.12 | g | 0.55 | 1.51 | 1.15 | 1.03 | 0.59 | 0.18 | 1.54 | 0.05 | b | 0.00 | e | ----- | z | |||||||
1999 | 0.00 | k | 0.10 | e | 0.04 | d | 0.50 | a | 0.69 | 1.09 | 0.28 | 0.46 | 0.35 | 0.07 | 0.06 | b | ----- | z | ----- | z | ||||||
2000 | 0.50 | v | 0.29 | c | 0.34 | c | 0.29 | d | 0.34 | g | 1.44 | d | 0.58 | b | 1.94 | a | 0.67 | c | 0.82 | c | 1.04 | e | 0.00 | k | ----- | z |
2001 | 0.05 | k | 2.50 | e | 0.15 | k | 0.74 | i | 1.55 | f | 1.13 | i | 2.79 | c | 0.58 | f | 0.66 | e | 1.00 | b | 0.11 | e | 0.08 | f | ----- | z |
2002 | 0.30 | f | 0.01 | a | 0.15 | d | 0.35 | h | 0.85 | h | 1.62 | g | 0.83 | d | 1.74 | c | 0.59 | i | 0.45 | c | 0.10 | e | 0.59 | j | ----- | z |
2003 | 0.02 | e | 0.10 | j | 0.75 | g | 0.15 | t | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2004 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2005 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2006 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2007 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2008 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2009 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2010 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.21 | 0.24 | 0.37 | 0.55 | 0.99 | 1.12 | 1.05 | 1.07 | 0.82 | 0.70 | 0.30 | 0.26 | 2.12 | |||||||||||||
S.D. | 0.16 | 0.45 | 0.25 | 0.34 | 0.71 | 0.44 | 0.89 | 0.99 | 0.53 | 0.46 | 0.27 | 0.19 | 0.91 | |||||||||||||
SKEW | 1.22 | 4.52 | 1.01 | 1.02 | 1.06 | 0.45 | 1.81 | 1.75 | 0.49 | 1.09 | 1.61 | 0.30 | 1.12 | |||||||||||||
MAX | 0.63 | 2.50 | 1.08 | 1.47 | 2.77 | 2.00 | 3.65 | 4.49 | 1.80 | 1.86 | 1.04 | 0.63 | 4.49 | |||||||||||||
MIN | 0.02 | 0.00 | 0.02 | 0.04 | 0.18 | 0.49 | 0.28 | 0.16 | 0.12 | 0.07 | 0.01 | 0.00 | 1.09 | |||||||||||||
YRS | 25 | 29 | 28 | 28 | 26 | 26 | 27 | 29 | 29 | 29 | 29 | 26 | 20 |