YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1978 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.35 | 0.24 | 0.42 | 0.03 | 0.24 | 0.82 | 0.49 | ----- | z | |||||||
1979 | 0.24 | 0.04 | 0.14 | c | 0.00 | p | 0.16 | 0.42 | 0.30 | 0.42 | 0.12 | 0.22 | 0.20 | 0.32 | 0.42 | s | ||||||||||
1980 | 0.18 | 0.14 | 0.16 | 0.40 | b | 0.60 | 0.00 | 0.09 | ----- | z | 0.15 | 0.47 | 0.02 | 0.34 | ----- | z | ||||||||||
1981 | 0.07 | 0.18 | 0.08 | 0.06 | 0.42 | ----- | z | 0.42 | 0.66 | 0.26 | 0.54 | 0.38 | 0.00 | k | ----- | z | ||||||||||
1982 | 0.22 | 0.04 | 0.20 | 0.08 | 0.06 | 0.00 | 0.41 | 0.32 | 0.36 | 0.10 | a | 0.62 | 0.37 | 0.62 | a | |||||||||||
1983 | 0.04 | ----- | 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 | 0.14 | 0.37 | 0.30 | 0.53 | 0.62 | 0.45 | 0.18 | 0.88 | b | 0.97 | 0.70 | 0.65 | 0.16 | 0.97 | b | |||||||||||
1995 | 0.22 | 0.38 | 0.33 | 0.27 | 0.28 | 0.75 | 0.42 | 0.40 | 0.28 | 0.03 | 0.20 | 0.06 | 0.75 | |||||||||||||
1996 | 0.40 | 0.43 | 0.12 | 0.27 | 0.08 | 0.42 | 0.48 | 0.27 | 0.40 | 0.90 | 0.85 | 0.16 | 0.90 | |||||||||||||
1997 | 0.45 | 0.30 | 0.07 | 0.27 | a | 0.30 | 0.47 | 0.47 | 0.58 | 1.35 | 0.63 | 0.65 | 0.20 | 1.35 | a | |||||||||||
1998 | 0.12 | 0.23 | 0.60 | 0.20 | 0.15 | 0.08 | 0.55 | 0.44 | 0.52 | 0.90 | 0.45 | 0.05 | 0.90 | |||||||||||||
1999 | 0.20 | 0.28 | 0.10 | 1.15 | 0.60 | 0.26 | 0.60 | 1.10 | 0.30 | 0.10 | 0.08 | 0.08 | 1.15 | |||||||||||||
2000 | 0.12 | 0.66 | 0.74 | 0.10 | 0.20 | 0.13 | 0.35 | 0.65 | 0.25 | 0.60 | 0.25 | 0.15 | 0.74 | |||||||||||||
2001 | 0.20 | 0.58 | 0.28 | 0.80 | 0.45 | 0.62 | 0.25 | 0.75 | 0.40 | 0.12 | 0.23 | 0.17 | 0.80 | |||||||||||||
2002 | 0.12 | 0.20 | 0.07 | 0.16 | 0.05 | 0.08 | 0.25 | 0.43 | a | 0.45 | 0.35 | 0.40 | 0.14 | 0.45 | a | |||||||||||
2003 | 0.15 | 0.15 | 0.10 | 0.30 | 0.63 | 0.10 | 0.21 | 0.45 | 0.80 | 0.30 | 0.75 | 0.30 | 0.80 | |||||||||||||
2004 | 0.32 | 0.12 | 0.14 | 0.65 | a | 0.03 | 0.70 | 0.45 | 0.30 | 0.75 | 0.40 | 0.35 | 1.10 | 1.10 | a | |||||||||||
2005 | 0.80 | 0.20 | 0.12 | 0.35 | 0.25 | 0.15 | 0.75 | 0.35 | 0.57 | 0.65 | 0.10 | 0.03 | 0.80 | |||||||||||||
2006 | 0.45 | 0.25 | 0.33 | 0.35 | 0.28 | 0.35 | 0.85 | 0.50 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ||||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.25 | 0.27 | 0.23 | 0.37 | 0.30 | 0.31 | 0.40 | 0.52 | 0.47 | 0.43 | 0.41 | 0.26 | 0.87 | |||||||||||||
S.D. | 0.18 | 0.17 | 0.19 | 0.29 | 0.21 | 0.24 | 0.20 | 0.22 | 0.34 | 0.28 | 0.27 | 0.26 | 0.23 | |||||||||||||
SKEW | 1.64 | 0.83 | 1.58 | 1.37 | 0.35 | 0.33 | 0.62 | 1.19 | 1.14 | 0.25 | 0.24 | 2.26 | 0.32 | |||||||||||||
MAX | 0.80 | 0.66 | 0.74 | 1.15 | 0.63 | 0.75 | 0.85 | 1.10 | 1.35 | 0.90 | 0.85 | 1.10 | 1.35 | |||||||||||||
MIN | 0.04 | 0.04 | 0.07 | 0.06 | 0.03 | 0.00 | 0.09 | 0.27 | 0.03 | 0.03 | 0.02 | 0.03 | 0.45 | |||||||||||||
YRS | 18 | 17 | 17 | 16 | 17 | 17 | 18 | 17 | 17 | 17 | 17 | 16 | 13 |