YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1962 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | r | 0.35 | 0.20 | ----- | z | ||
1963 | 0.70 | 0.13 | 0.13 | 0.97 | 0.30 | 0.19 | 0.06 | 0.08 | 0.29 | 0.54 | 0.50 | 0.42 | 0.97 | |||||||||||||
1964 | 0.32 | 0.03 | 0.14 | 0.43 | 1.30 | 0.84 | 0.20 | 0.30 | 0.10 | 0.01 | 0.38 | 0.60 | 1.30 | |||||||||||||
1965 | 0.45 | 0.03 | 0.12 | 0.21 | 0.06 | 0.50 | 0.07 | 0.76 | 0.20 | 0.08 | 0.37 | 0.12 | 0.76 | |||||||||||||
1966 | ----- | z | 0.20 | 0.29 | 0.10 | 0.22 | 0.14 | 0.00 | 0.22 | 0.50 | 0.14 | 0.24 | 0.42 | ----- | z | |||||||||||
1967 | 0.33 | 0.02 | 0.41 | 0.62 | 0.34 | 0.64 | 0.10 | 0.33 | 0.45 | 0.55 | ----- | z | 0.15 | ----- | z | |||||||||||
1968 | 0.27 | 0.32 | 0.16 | 0.12 | 0.20 | 0.33 | 0.15 | 0.76 | ----- | z | 0.26 | 0.52 | 0.37 | ----- | z | |||||||||||
1969 | 0.41 | 0.40 | 0.35 | 0.18 | 0.16 | 0.70 | 0.00 | 0.00 | 0.17 | 0.48 | 0.06 | 0.39 | 0.70 | |||||||||||||
1970 | 0.55 | 0.50 | 0.12 | 0.05 | 0.52 | 0.68 | 0.00 | 0.00 | 0.34 | 0.66 | 0.40 | 0.38 | 0.68 | |||||||||||||
1971 | 0.54 | 0.05 | 0.40 | 0.18 | 0.80 | 0.44 | 0.00 | 0.00 | 0.07 | 0.14 | 0.55 | 0.31 | 0.80 | |||||||||||||
1972 | 0.25 | 0.14 | 0.20 | 0.07 | 0.15 | 0.65 | 0.06 | 0.04 | 0.51 | j | 0.50 | 0.30 | ----- | z | ----- | z | ||||||||||
1973 | 0.59 | q | 0.65 | 0.15 | g | 0.15 | ----- | z | 0.12 | ----- | z | ----- | z | ----- | z | 0.07 | v | 0.33 | 0.48 | ----- | z | |||||
1974 | 0.46 | 0.18 | 0.39 | ----- | z | 0.15 | 0.08 | 0.32 | 0.06 | 0.00 | 0.23 | b | 0.09 | 0.30 | ----- | z | ||||||||||
1975 | 0.20 | 0.33 | 0.43 | 0.49 | 0.06 | 0.65 | 0.75 | 0.17 | 0.00 | 0.27 | 0.16 | 0.29 | 0.75 | |||||||||||||
1976 | 0.20 | o | 0.36 | 0.29 | 0.20 | 0.03 | 0.20 | 0.35 | 0.34 | 0.25 | 0.08 | 0.13 | 0.00 | 0.36 | o | |||||||||||
1977 | 0.18 | 0.34 | 0.05 | 0.00 | 0.49 | 0.29 | 0.08 | 0.19 | 0.40 | 0.00 | 0.33 | 0.69 | 0.69 | |||||||||||||
1978 | 1.00 | d | 0.37 | 0.20 | 1.11 | 0.11 | 0.15 | 0.22 | 0.39 | 0.53 | 0.00 | 0.50 | 0.15 | 1.11 | d | |||||||||||
1979 | 0.57 | 0.40 | 0.20 | a | 0.31 | d | 0.75 | ----- | z | 0.00 | 1.50 | 0.43 | 0.59 | d | 0.53 | 0.85 | ----- | z | ||||||||
1980 | 0.56 | 0.58 | c | 0.15 | 0.15 | 0.33 | 0.78 | 0.05 | 0.00 | 0.65 | 0.35 | 0.41 | 0.63 | 0.78 | c | |||||||||||
1981 | 0.45 | 0.69 | f | 0.52 | 0.14 | 0.97 | 0.50 | 0.10 | 0.08 | 0.05 | 0.50 | 0.75 | a | 0.61 | a | 0.97 | h | |||||||||
1982 | 0.47 | 0.40 | 0.19 | 0.30 | 0.38 | 0.39 | 1.63 | 0.19 | 0.50 | 0.94 | 0.30 | 0.60 | 1.63 | |||||||||||||
1983 | 0.30 | 0.39 | 0.54 | 0.55 | 0.61 | 0.60 | 0.64 | 0.39 | 0.20 | 0.30 | a | 0.58 | 0.40 | 0.64 | a | |||||||||||
1984 | 0.13 | 0.46 | 0.36 | 0.47 | 0.23 | 0.37 | 0.05 | 0.65 | 0.03 | 0.20 | 0.75 | 0.40 | 0.75 | |||||||||||||
1985 | 0.09 | 0.14 | a | 0.18 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.19 | ----- | z | |||
1986 | 0.29 | 0.78 | 0.26 | b | 0.10 | 0.36 | 0.32 | 0.24 | 0.28 | 0.39 | 0.30 | 0.00 | 0.10 | b | 0.78 | d | ||||||||||
1987 | 0.36 | 0.32 | 0.28 | 0.30 | 0.20 | 0.36 | ----- | z | ----- | z | ----- | z | 0.00 | 0.49 | 0.47 | a | ----- | z | ||||||||
1988 | 0.32 | ----- | z | 0.22 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.11 | 0.00 | 0.58 | 0.79 | ----- | z | ||||||
1989 | 0.16 | 0.21 | 0.36 | o | 0.19 | o | ----- | z | ----- | z | 0.24 | 0.33 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ||||
1990 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.46 | 0.15 | ----- | z | ||
1991 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1992 | ----- | z | ----- | z | ----- | z | ----- | z | 0.37 | a | 0.39 | 0.38 | 0.41 | 0.09 | 0.35 | 0.52 | 0.42 | ----- | z | |||||||
1993 | 0.48 | 0.26 | 0.35 | 0.47 | 0.27 | 0.54 | 0.17 | 0.14 | 0.00 | 0.61 | d | 0.22 | 0.43 | a | 0.61 | e | ||||||||||
1994 | 0.10 | 0.27 | 0.02 | 0.18 | 0.32 | 0.03 | 1.00 | 0.00 | 0.13 | 0.11 | 0.47 | 0.45 | a | 1.00 | a | |||||||||||
1995 | 0.41 | 0.24 | 0.27 | 0.30 | 0.62 | ----- | z | 1.21 | 0.46 | 0.42 | 0.15 | 0.38 | 0.48 | ----- | z | |||||||||||
1996 | 0.40 | 0.34 | 0.36 | u | 0.36 | m | 0.35 | 0.20 | x | 0.06 | 0.12 | 0.15 | 0.20 | u | 0.40 | o | 0.70 | ----- | z | |||||||
1997 | 0.51 | 0.03 | 0.13 | 0.18 | 0.80 | ----- | z | 0.37 | ----- | z | 0.10 | ----- | z | 0.72 | s | 0.49 | ----- | z | ||||||||
1998 | 0.27 | 0.48 | 0.26 | 0.33 | 0.71 | 0.66 | 0.02 | 0.67 | 0.50 | 0.00 | 0.25 | 0.13 | 0.71 | |||||||||||||
1999 | 0.42 | 0.53 | 0.07 | a | 0.06 | 0.03 | 0.38 | 0.00 | 0.20 | 0.00 | 0.34 | 0.03 | 0.24 | 0.53 | a | |||||||||||
2000 | 0.30 | 0.49 | 0.40 | 0.40 | 0.06 | 0.13 | 0.03 | 0.00 | 0.16 | 0.37 | 0.30 | 0.80 | 0.80 | |||||||||||||
2001 | 0.40 | 0.29 | 0.10 | 0.13 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.20 | c | 0.02 | c | 0.32 | l | ----- | z | ||||
2002 | 0.20 | e | 0.02 | a | 0.13 | 0.33 | b | 0.20 | b | 0.25 | 0.00 | 1.00 | c | 0.05 | f | 0.00 | s | ----- | z | ----- | z | ----- | z | |||
2003 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | 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 | 0.31 | n | 0.14 | 0.25 | 0.00 | h | 0.04 | 0.28 | 0.30 | 0.62 | a | ----- | z | |||||
2006 | 0.39 | 0.22 | 0.64 | 0.47 | 0.40 | a | 0.10 | 0.21 | 0.35 | 0.40 | 0.19 | 0.20 | 0.20 | b | 0.64 | c | ||||||||||
2007 | 0.05 | 0.23 | 0.01 | 0.20 | 0.11 | b | 0.30 | 0.18 | 0.09 | a | 0.80 | 0.15 | 0.30 | 0.39 | 0.80 | c | ||||||||||
2008 | 0.21 | 0.35 | 0.15 | 0.17 | 0.24 | 0.20 | 0.05 | 0.61 | 0.66 | 0.42 | 0.18 | 0.53 | 0.66 | |||||||||||||
2009 | 0.36 | 0.17 | 0.13 | 0.25 | 0.39 | 0.71 | a | 0.10 | 0.51 | 0.00 | 0.35 | 0.18 | 0.74 | 0.74 | a | |||||||||||
2010 | 0.42 | 0.29 | 0.14 | 0.34 | 0.29 | 0.69 | b | 0.26 | 0.00 | 0.06 | 0.00 | ----- | z | ----- | z | ----- | z | |||||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.37 | 0.30 | 0.24 | 0.30 | 0.37 | 0.40 | 0.25 | 0.31 | 0.25 | 0.28 | 0.34 | 0.42 | 0.83 | |||||||||||||
S.D. | 0.18 | 0.18 | 0.15 | 0.24 | 0.28 | 0.23 | 0.35 | 0.33 | 0.22 | 0.22 | 0.19 | 0.21 | 0.25 | |||||||||||||
SKEW | 0.94 | 0.38 | 0.73 | 1.72 | 1.31 | 0.18 | 2.40 | 1.61 | 0.63 | 0.72 | 0.10 | 0.14 | 1.91 | |||||||||||||
MAX | 1.00 | 0.78 | 0.64 | 1.11 | 1.30 | 0.84 | 1.63 | 1.50 | 0.80 | 0.94 | 0.75 | 0.85 | 1.63 | |||||||||||||
MIN | 0.05 | 0.02 | 0.01 | 0.00 | 0.03 | 0.03 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.53 | |||||||||||||
YRS | 39 | 40 | 39 | 37 | 38 | 36 | 39 | 37 | 36 | 38 | 39 | 41 | 22 |