YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1971 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.04 | ----- | z | |
1972 | 0.00 | 0.00 | 0.00 | 0.02 | 0.06 | 0.80 | 0.00 | 0.21 | 0.05 | 0.20 | 0.21 | 0.05 | 0.80 | |||||||||||||
1973 | 1.95 | 0.31 | 0.75 | 0.08 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.05 | 0.03 | 1.95 | |||||||||||||
1974 | 0.52 | 0.00 | 0.90 | 0.00 | 0.02 | 0.00 | 0.15 | 0.29 | 0.00 | 1.01 | 0.00 | 0.24 | 1.01 | |||||||||||||
1975 | 0.09 | 0.39 | 0.12 | 0.27 | 0.00 | 0.00 | 0.04 | 0.00 | 0.10 | 0.05 | 0.00 | 0.00 | 0.39 | |||||||||||||
1976 | 0.00 | 1.30 | 0.07 | 0.11 | 0.12 | 0.00 | 0.12 | 0.00 | 1.12 | 0.21 | 0.00 | 0.60 | 1.30 | |||||||||||||
1977 | 0.07 | 0.00 | 0.32 | 0.10 | 0.70 | 0.00 | ----- | z | 1.24 | 0.09 | ----- | z | 0.08 | 0.56 | ----- | z | ||||||||||
1978 | 0.32 | 0.42 | 0.59 | 0.15 | 0.30 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.38 | 0.10 | 0.59 | |||||||||||||
1979 | ----- | z | 0.14 | 0.63 | 0.00 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.40 | ----- | z | ||||
1980 | 0.56 | 0.87 | 0.24 | 0.37 | 0.00 | 0.21 | 0.00 | 0.00 | 0.36 | 0.00 | 0.00 | 0.00 | 0.87 | |||||||||||||
1981 | 0.10 | 0.04 | 0.32 | 0.00 | 0.78 | 0.00 | 0.00 | 0.20 | 0.28 | 0.00 | 0.00 | 0.00 | 0.78 | |||||||||||||
1982 | 0.00 | a | 0.00 | h | 0.87 | ----- | z | ----- | z | 0.00 | 0.00 | 0.64 | a | 0.00 | 0.00 | 0.77 | ----- | z | ----- | z | ||||||
1983 | 0.16 | a | 0.28 | 1.52 | a | 0.70 | 0.00 | 0.00 | i | ----- | z | 0.62 | 0.17 | 0.41 | 0.07 | 0.28 | ----- | z | ||||||||
1984 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 1.05 | 0.20 | 0.23 | 0.00 | 0.36 | 0.60 | a | 1.05 | a | |||||||||||
1985 | 0.15 | 0.00 | 0.08 | 0.05 | 0.00 | 0.00 | 0.12 | 0.00 | 0.16 | 0.04 | 0.53 | 0.00 | 0.53 | |||||||||||||
1986 | 0.07 | 0.40 | 0.45 | 0.07 | b | 0.04 | 0.00 | 0.86 | 0.75 | 0.00 | 0.00 | b | 1.03 | 0.96 | 1.03 | d | ||||||||||
1987 | 0.30 | 0.23 | 0.15 | 0.00 | 0.02 | 0.48 | 0.17 | 0.01 | 0.12 | ----- | z | 0.80 | 0.20 | ----- | z | |||||||||||
1988 | 0.32 | 0.15 | 0.00 | 1.33 | 0.00 | 0.00 | 0.00 | 0.97 | 0.00 | 0.00 | 0.09 | a | 0.10 | 1.33 | a | |||||||||||
1989 | 0.98 | 0.10 | 0.15 | 0.00 | 0.02 | 0.00 | 0.00 | 0.30 | a | 0.00 | a | 0.00 | 0.00 | 0.00 | 0.98 | b | ||||||||||
1990 | 0.36 | a | 0.06 | 0.00 | 0.08 | 0.13 | ----- | 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 | 0.00 | 0.29 | 0.59 | 0.12 | ----- | z | ||||
1997 | 0.39 | 0.10 | 0.00 | 0.00 | 0.01 | 0.01 | 0.76 | 0.41 | 0.64 | 0.01 | 0.04 | 0.31 | 0.76 | |||||||||||||
1998 | 0.13 | 1.00 | 0.16 | 0.06 | a | 0.23 | 0.00 | 0.00 | 0.84 | 0.38 | 0.10 | 0.02 | 0.00 | 1.00 | a | |||||||||||
1999 | 0.10 | 0.15 | 0.02 | 0.23 | 0.00 | 0.20 | 0.32 | 0.05 | 0.33 | 0.00 | 0.00 | 0.00 | 0.33 | |||||||||||||
2000 | 0.00 | a | 0.28 | 0.05 | 0.07 | 0.00 | 0.00 | 0.00 | 0.29 | 0.00 | 0.14 | 0.01 | 0.00 | 0.29 | a | |||||||||||
2001 | 0.26 | 0.75 | 0.52 | 0.01 | 0.00 | 0.00 | 0.28 | 0.00 | 0.00 | 0.00 | 0.09 | 0.06 | b | 0.75 | b | |||||||||||
2002 | 0.01 | 0.00 | 0.00 | 0.00 | a | 0.00 | 0.00 | a | 0.23 | 0.00 | b | 0.05 | a | 0.10 | 0.22 | 0.06 | 0.23 | e | ||||||||
2003 | 0.04 | 0.62 | 0.55 | 0.80 | 0.03 | 0.00 | 0.03 | 1.90 | a | 0.01 | 0.06 | 0.59 | 0.18 | a | 1.90 | b | ||||||||||
2004 | 0.05 | 0.70 | 0.33 | 0.10 | a | 0.00 | 0.00 | 0.00 | 0.20 | 0.06 | 0.46 | 0.48 | 0.88 | 0.88 | a | |||||||||||
2005 | 0.86 | a | 1.20 | 0.50 | a | 0.04 | 0.00 | 0.00 | 0.16 | 0.89 | 1.05 | 0.00 | 0.01 | 0.00 | 1.20 | b | ||||||||||
2006 | 0.03 | a | 0.01 | 0.13 | 0.56 | e | 0.01 | j | 0.04 | 0.15 | 0.00 | 0.28 | 0.60 | 0.01 | c | 0.15 | b | 0.60 | u | |||||||
2007 | 0.00 | 0.06 | e | 0.05 | w | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 2.81 | 0.00 | 0.00 | 0.73 | ----- | z | ||||||||||
2008 | 0.39 | 0.15 | 0.00 | 0.00 | 0.35 | 0.00 | 0.05 | 0.00 | 0.00 | 0.00 | 0.30 | 0.61 | 0.61 | |||||||||||||
2009 | 0.01 | 0.25 | 0.00 | 0.02 | a | 0.00 | 0.00 | 0.05 | 0.00 | 0.00 | 0.00 | 0.00 | 0.22 | 0.25 | a | |||||||||||
2010 | 0.43 | 0.97 | 0.15 | 0.01 | 0.00 | 0.00 | 0.00 | 0.35 | 0.00 | 0.62 | 0.05 | 1.30 | 1.30 | |||||||||||||
2011 | 0.00 | 0.12 | 0.10 | 0.00 | 0.20 | 0.00 | 0.32 | 0.20 | 1.01 | 0.08 | 0.28 | 0.30 | 1.01 | |||||||||||||
2012 | 0.01 | 0.01 | b | 0.01 | 0.15 | a | 0.00 | 0.00 | a | 1.20 | 0.13 | 0.80 | b | 0.24 | 0.00 | d | 0.70 | 1.20 | j | |||||||
2013 | 0.40 | 0.00 | 0.13 | b | 0.05 | b | 0.00 | a | 0.00 | 0.03 | 0.35 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | |||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.26 | 0.32 | 0.28 | 0.16 | 0.09 | 0.05 | 0.19 | 0.32 | 0.30 | 0.14 | 0.21 | 0.28 | 0.92 | |||||||||||||
S.D. | 0.38 | 0.37 | 0.34 | 0.28 | 0.19 | 0.16 | 0.32 | 0.44 | 0.55 | 0.24 | 0.28 | 0.33 | 0.43 | |||||||||||||
SKEW | 2.79 | 1.26 | 1.71 | 2.70 | 2.58 | 3.56 | 2.05 | 1.83 | 3.12 | 2.08 | 1.36 | 1.31 | 0.65 | |||||||||||||
MAX | 1.95 | 1.30 | 1.52 | 1.33 | 0.78 | 0.80 | 1.20 | 1.90 | 2.81 | 1.01 | 1.03 | 1.30 | 1.95 | |||||||||||||
MIN | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.25 | |||||||||||||
YRS | 35 | 35 | 35 | 35 | 33 | 33 | 32 | 34 | 34 | 32 | 34 | 35 | 25 |