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 | 0.56 | g | ----- | z |
1967 | 0.48 | ----- | z | ----- | z | 0.55 | ----- | z | 0.52 | 0.21 | 0.18 | 1.72 | 0.12 | ----- | z | 0.33 | ----- | z | ||||||||
1968 | ----- | z | 0.31 | 0.61 | 0.15 | 0.31 | ----- | 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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1981 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1982 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1983 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1984 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1985 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | 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 | ----- | z | ----- | z |
1991 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1992 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1993 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1994 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1995 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1996 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1997 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1998 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1999 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2000 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2001 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2002 | ----- | z | ----- | z | ----- | z | 0.40 | 0.07 | 0.00 | 0.08 | 0.04 | 0.30 | 0.44 | 0.45 | 0.15 | d | ----- | z | ||||||||
2003 | 0.00 | 0.00 | 0.00 | 0.75 | 0.60 | 0.10 | 0.08 | 0.50 | 0.42 | 0.05 | 0.23 | 0.52 | 0.75 | |||||||||||||
2004 | 0.00 | 0.75 | b | 0.00 | 0.36 | 0.03 | 0.19 | 0.48 | 0.24 | 0.34 | 0.90 | 0.30 | b | ----- | z | ----- | z | |||||||||
2005 | 0.19 | h | 0.34 | 0.40 | 0.85 | 0.91 | 0.08 | 0.45 | 0.35 | 0.00 | 0.19 | 0.35 | 0.35 | 0.91 | h | |||||||||||
2006 | 0.53 | 0.27 | 0.21 | a | 0.20 | 0.15 | 0.10 | 0.20 | 0.00 | 0.12 | 0.27 | 0.10 | 0.09 | 0.53 | a | |||||||||||
2007 | 0.35 | 0.22 | 0.40 | 0.25 | 0.25 | 0.75 | 0.32 | 0.05 | 0.12 | 0.23 | 0.12 | 0.60 | 0.75 | |||||||||||||
2008 | 0.50 | 0.26 | 0.16 | 0.04 | w | 0.05 | 0.65 | 0.22 | 0.40 | 0.40 | 0.33 | 0.56 | 0.32 | 0.65 | w | |||||||||||
2009 | 0.40 | a | 0.40 | 0.15 | 0.84 | 0.55 | 0.36 | 0.41 | 0.16 | 0.30 | 0.40 | 0.00 | e | 0.50 | a | 0.84 | g | |||||||||
2010 | 0.25 | 0.22 | b | 0.35 | 0.47 | 0.63 | 0.04 | b | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.31 | 0.31 | 0.25 | 0.48 | 0.35 | 0.28 | 0.27 | 0.21 | 0.41 | 0.33 | 0.26 | 0.36 | 0.68 | |||||||||||||
S.D. | 0.21 | 0.20 | 0.20 | 0.26 | 0.30 | 0.27 | 0.15 | 0.17 | 0.51 | 0.25 | 0.19 | 0.18 | 0.13 | |||||||||||||
SKEW | -0.63 | 0.95 | 0.29 | 0.28 | 0.51 | 0.66 | 0.09 | 0.33 | 2.11 | 1.35 | 0.17 | -0.18 | -0.71 | |||||||||||||
MAX | 0.53 | 0.75 | 0.61 | 0.85 | 0.91 | 0.75 | 0.48 | 0.50 | 1.72 | 0.90 | 0.56 | 0.60 | 0.75 | |||||||||||||
MIN | 0.00 | 0.00 | 0.00 | 0.15 | 0.03 | 0.00 | 0.08 | 0.00 | 0.00 | 0.05 | 0.00 | 0.09 | 0.53 | |||||||||||||
YRS | 8 | 9 | 9 | 10 | 10 | 10 | 9 | 9 | 9 | 9 | 8 | 8 | 3 |