YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1970 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | 0.04 | 0.02 | 0.37 | 0.66 | 0.93 | ----- | z | ||||||
1971 | 0.77 | 0.25 | 0.38 | 0.45 | 0.36 | 0.63 | 0.07 | 0.04 | 0.72 | 0.40 | 0.63 | 1.30 | d | 1.30 | d | |||||||||||
1972 | 0.38 | 0.55 | 0.35 | 0.27 | 0.50 | 0.35 | 0.08 | 0.48 | 0.31 | 0.17 | 0.48 | 1.60 | 1.60 | |||||||||||||
1973 | 0.50 | 0.30 | 0.30 | 0.00 | 0.00 | 0.02 | 0.00 | 0.23 | 1.20 | 0.40 | 0.96 | 0.99 | 1.20 | |||||||||||||
1974 | 0.86 | 0.80 | 0.50 | 0.35 | 0.56 | 0.24 | 0.73 | 0.10 | 0.00 | 0.13 | 0.20 | 0.76 | 0.86 | |||||||||||||
1975 | 0.62 | 0.55 | 0.58 | 0.84 | 0.34 | 0.29 | 0.03 | 1.09 | 0.00 | 0.41 | 0.29 | 0.41 | 1.09 | |||||||||||||
1976 | 0.28 | 0.66 | 0.32 | 0.14 | 0.31 | 0.13 | 0.09 | 1.33 | 0.00 | 0.13 | 0.00 | 0.34 | 1.33 | |||||||||||||
1977 | 0.00 | 0.53 | 0.14 | 0.15 | 0.43 | 0.11 | 0.11 | 0.25 | 0.37 | 0.22 | 0.53 | 0.59 | 0.59 | |||||||||||||
1978 | 0.43 | 0.42 | b | 0.42 | 0.56 | 0.13 | 0.11 | 0.24 | 0.37 | 0.44 | 0.00 | 0.44 | 0.36 | 0.56 | b | |||||||||||
1979 | 0.31 | 0.51 | 0.18 | 0.31 | 0.02 | 0.51 | 0.05 | 0.43 | 0.21 | 0.92 | 0.53 | 0.88 | 0.92 | |||||||||||||
1980 | 0.81 | 0.30 | 0.48 | 0.42 | 0.39 | 0.12 | 0.05 | 0.21 | 1.20 | 0.05 | 0.78 | 0.61 | 1.20 | |||||||||||||
1981 | 0.82 | 0.70 | 0.03 | 0.01 | 1.49 | 0.23 | 0.05 | 0.11 | 0.35 | 0.93 | 0.57 | 0.67 | 1.49 | |||||||||||||
1982 | 0.35 | 0.50 | 0.63 | r | 0.37 | 0.40 | w | 0.79 | 0.21 | 0.08 | 0.41 | 0.53 | 0.64 | 0.64 | ----- | z | ||||||||||
1983 | 0.35 | l | 0.66 | 0.76 | 0.40 | 0.62 | 0.17 | 0.22 | 1.83 | a | 0.38 | 0.00 | 1.46 | 0.41 | 1.83 | m | ||||||||||
1984 | 0.37 | 0.55 | 0.76 | 0.68 | 1.06 | 0.79 | 0.11 | 0.31 | 0.36 | 0.21 | 0.76 | a | 0.35 | c | 1.06 | d | ||||||||||
1985 | 0.42 | 0.33 | 0.88 | 0.02 | 0.23 | 0.31 | 0.06 | 0.18 | 0.37 | 0.23 | 0.25 | 0.41 | 0.88 | |||||||||||||
1986 | 0.66 | 0.40 | 0.53 | 0.36 | 0.03 | 0.15 | 0.15 | 0.11 | 1.04 | 0.08 | 0.56 | 0.26 | 1.04 | |||||||||||||
1987 | 0.77 | c | 0.59 | 0.51 | 0.11 | 0.71 | 0.52 | 0.36 | 0.15 | 0.00 | 0.01 | 0.28 | 1.71 | 1.71 | c | |||||||||||
1988 | 0.25 | 0.04 | 0.21 | 0.33 | 0.43 | 0.69 | 0.00 | 0.21 | 0.18 | 0.00 | 0.56 | 0.64 | 0.69 | |||||||||||||
1989 | 0.26 | a | 0.71 | 0.44 | 0.42 | 1.69 | 0.11 | 0.21 | 0.17 | 0.00 | 0.94 | 0.49 | d | 0.05 | 1.69 | e | ||||||||||
1990 | 0.59 | 0.90 | 0.31 | 0.61 | 0.92 | 0.22 | 0.31 | 0.66 | 0.00 | 0.34 | 0.77 | 0.50 | 0.92 | |||||||||||||
1991 | 0.11 | c | 0.15 | 0.37 | 0.23 | 1.26 | 0.31 | 0.01 | 0.51 | 0.00 | 0.51 | 0.82 | a | 0.21 | a | 1.26 | e | |||||||||
1992 | 0.73 | b | 0.68 | 0.49 | 0.25 | 0.08 | 1.53 | v | 1.30 | 0.00 | 0.00 | 0.61 | w | 0.65 | p | 0.85 | a | ----- | z | |||||||
1993 | 0.61 | t | 0.44 | 0.07 | 0.24 | b | 0.40 | t | 0.43 | o | 0.42 | 0.16 | y | ----- | z | 0.02 | 0.57 | a | 0.62 | t | ----- | z | ||||
1994 | 0.37 | 1.09 | 0.20 | 0.99 | 0.24 | 0.41 | q | 0.09 | 0.43 | y | 0.02 | 0.92 | 1.14 | c | 0.45 | ----- | z | |||||||||
1995 | 0.97 | r | 0.38 | 0.99 | 0.47 | v | 0.32 | x | 0.37 | u | 0.07 | v | 0.19 | x | 0.13 | 0.17 | 0.74 | 0.39 | c | ----- | z | |||||
1996 | 0.21 | 0.35 | 0.41 | a | 0.25 | 0.56 | 0.13 | 0.06 | 0.00 | 0.83 | 0.63 | w | 0.53 | 1.00 | f | ----- | z | |||||||||
1997 | 0.22 | b | 0.07 | 0.38 | a | 0.36 | 0.40 | 1.17 | 0.08 | e | 0.13 | 0.28 | 0.64 | 0.20 | 0.27 | 1.17 | h | |||||||||
1998 | 0.42 | a | 0.46 | a | 0.35 | a | 0.38 | 1.21 | 0.74 | 1.27 | a | 0.05 | 0.10 | 0.07 | 0.60 | 0.50 | c | 1.27 | g | |||||||
1999 | 0.70 | 0.51 | 0.49 | 0.00 | 0.31 | 0.05 | 0.03 | 0.46 | 0.00 | 0.58 | y | 0.31 | ----- | z | ----- | z | ||||||||||
2000 | ----- | z | 0.38 | q | 0.31 | 0.06 | 0.22 | 0.18 | 0.34 | 0.00 | r | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | |||||
2001 | ----- | z | ----- | z | ----- | z | ----- | z | 0.10 | 0.56 | a | 0.65 | 0.27 | 0.31 | 0.00 | q | 0.76 | r | 0.00 | l | ----- | z | ||||
2002 | 0.00 | e | 0.00 | c | 0.00 | m | 0.10 | 0.24 | 0.00 | 0.25 | 0.20 | 0.07 | 0.02 | 0.69 | 2.02 | h | ----- | z | ||||||||
2003 | 0.50 | k | 0.00 | ----- | z | 1.13 | 0.09 | ----- | z | 0.00 | 0.07 | 0.17 | 0.80 | 0.41 | b | 0.00 | k | ----- | z | |||||||
2004 | 0.25 | f | 0.50 | d | 0.51 | 0.18 | ----- | z | ----- | z | 0.32 | 0.35 | 0.06 | a | 1.11 | h | 0.23 | a | ----- | z | ----- | z | ||||
2005 | ----- | z | 0.00 | a | 0.45 | 0.22 | 1.54 | 0.42 | 0.20 | 0.01 | 0.27 | 0.48 | 1.17 | a | 0.63 | c | ----- | z | ||||||||
2006 | 1.42 | h | 0.74 | 0.60 | 0.21 | 0.34 | 0.31 | ----- | z | 0.00 | 0.33 | 0.30 | c | 0.90 | d | 0.60 | h | ----- | z | |||||||
2007 | ----- | z | 1.50 | h | ----- | z | 0.00 | 0.58 | 0.06 | 0.28 | 0.00 | 0.35 | 0.82 | 0.10 | c | 0.00 | i | ----- | z | |||||||
2008 | 0.00 | k | 0.00 | e | 0.00 | c | 0.05 | 0.26 | 0.16 | 0.02 | 0.11 | 0.00 | 0.36 | 0.68 | ----- | z | ----- | z | ||||||||
2009 | 0.00 | f | 0.00 | c | 1.00 | a | 0.00 | 0.80 | 0.25 | 0.65 | 0.00 | 0.20 | 0.94 | 0.13 | b | 0.00 | c | 1.00 | o | |||||||
2010 | 1.50 | f | 0.75 | 0.35 | 0.75 | 0.54 | 0.42 | 0.00 | 0.73 | 0.33 | ----- | z | 0.40 | d | 0.40 | ----- | z | |||||||||
2011 | ----- | z | ----- | z | 0.72 | 0.12 | 1.15 | 0.26 | 0.62 | 0.00 | ----- | z | 0.60 | 0.00 | n | ----- | z | ----- | z | |||||||
2012 | ----- | z | 0.40 | 1.40 | ----- | z | 0.10 | 0.51 | 1.26 | 0.00 | 0.00 | a | 0.62 | 0.60 | 0.80 | ----- | z | |||||||||
2013 | ----- | z | ----- | z | 0.60 | 0.70 | 0.50 | 0.84 | 0.00 | 0.62 | 0.43 | 0.04 | 0.30 | 0.01 | ----- | z | ||||||||||
2014 | 0.25 | 0.28 | 0.15 | 0.49 | 0.13 | 0.62 | 0.05 | 1.63 | 0.14 | 0.51 | 0.60 | b | 0.55 | a | 1.63 | c | ||||||||||
2015 | 0.50 | 0.21 | 0.70 | 0.04 | 0.40 | 0.25 | 0.00 | 0.00 | c | ----- | z | 0.37 | 1.60 | 2.75 | f | ----- | z | |||||||||
2016 | 0.60 | x | ----- | z | 0.74 | ----- | z | ----- | z | 0.62 | ----- | z | ----- | z | ----- | z | 0.84 | l | 0.39 | 0.50 | ----- | z | ||||
2017 | ----- | z | ----- | z | 0.37 | s | 0.94 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.45 | 0.43 | 0.47 | 0.34 | 0.52 | 0.36 | 0.25 | 0.32 | 0.28 | 0.38 | 0.58 | 0.59 | 1.12 | |||||||||||||
S.D. | 0.25 | 0.27 | 0.28 | 0.29 | 0.44 | 0.27 | 0.34 | 0.43 | 0.32 | 0.31 | 0.33 | 0.39 | 0.35 | |||||||||||||
SKEW | 0.05 | 0.04 | 0.94 | 0.97 | 1.14 | 0.92 | 1.97 | 2.08 | 1.58 | 0.52 | 0.99 | 1.16 | 0.14 | |||||||||||||
MAX | 0.86 | 1.09 | 1.40 | 1.13 | 1.69 | 1.17 | 1.30 | 1.83 | 1.20 | 0.94 | 1.60 | 1.71 | 1.71 | |||||||||||||
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 | 0.56 | |||||||||||||
YRS | 29 | 40 | 41 | 43 | 41 | 40 | 44 | 42 | 42 | 39 | 43 | 34 | 18 |