YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1961 | ----- | z | 0.32 | f | 0.31 | 0.29 | 0.47 | 0.25 | 0.34 | 0.07 | 0.30 | 0.20 | 0.65 | 0.30 | ----- | z | ||||||||||
1962 | 0.40 | 0.35 | 0.24 | 0.45 | 0.66 | 0.10 | 0.00 | 0.13 | 0.14 | 0.54 | 0.42 | 0.28 | 0.66 | |||||||||||||
1963 | 0.30 | 0.46 | 0.13 | 0.42 | 0.14 | 0.20 | a | 0.12 | 0.27 | a | 0.64 | 0.35 | 0.66 | 0.74 | 0.74 | b | ||||||||||
1964 | 0.28 | 0.03 | 0.20 | 0.19 | 0.33 | ----- | z | 0.34 | ----- | z | 0.13 | 0.43 | 0.30 | 1.07 | ----- | z | ||||||||||
1965 | 0.67 | 0.08 | 0.76 | 0.30 | 0.45 | ----- | z | 0.83 | 0.80 | 0.10 | 0.13 | 0.45 | 0.18 | ----- | z | |||||||||||
1966 | 0.30 | 0.28 | 0.18 | 0.18 | 0.29 | 0.69 | 0.70 | 0.03 | 0.55 | 0.22 | 0.45 | 0.38 | 0.70 | |||||||||||||
1967 | 0.32 | 0.27 | 0.21 | 0.68 | 0.70 | 0.21 | 0.00 | 0.10 | 0.18 | 0.47 | 0.18 | 0.13 | 0.70 | |||||||||||||
1968 | 0.32 | 0.27 | 0.08 | 0.14 | 0.31 | 0.31 | 0.11 | 0.42 | 0.20 | 0.43 | 0.65 | 0.53 | 0.65 | |||||||||||||
1969 | 0.27 | 0.36 | 0.26 | 0.76 | 0.51 | 1.66 | 0.22 | 0.00 | 0.17 | 0.33 | 0.45 | 0.30 | 1.66 | |||||||||||||
1970 | 0.50 | 0.34 | 0.43 | 0.21 | 0.30 | 0.64 | 0.31 | 0.00 | 0.46 | 0.29 | 0.29 | 0.41 | 0.64 | |||||||||||||
1971 | 0.75 | 0.18 | 0.28 | 0.52 | 0.13 | 0.68 | 0.04 | 0.40 | 0.41 | 0.54 | 0.60 | 0.53 | 0.75 | |||||||||||||
1972 | 0.34 | 0.13 | 0.71 | 0.33 | 1.10 | 0.53 | 0.01 | 0.26 | 0.21 | 0.35 | 0.20 | 0.50 | 1.10 | |||||||||||||
1973 | 0.32 | 0.16 | 0.26 | 0.12 | 0.54 | 0.07 | 0.04 | 0.10 | 0.73 | 0.39 | 0.55 | 0.49 | 0.73 | |||||||||||||
1974 | 0.28 | 0.20 | 0.24 | 0.52 | 0.11 | 0.09 | 0.36 | 0.08 | 0.00 | 0.11 | 0.21 | 0.31 | 0.52 | |||||||||||||
1975 | 0.50 | 0.35 | 0.55 | 0.32 | 0.17 | 0.39 | 0.45 | 0.51 | 0.01 | 0.52 | 0.19 | 0.55 | 0.55 | |||||||||||||
1976 | 1.01 | 0.35 | 0.20 | 0.38 | 0.18 | 0.25 | 0.10 | 0.84 | 0.58 | 0.18 | 0.28 | 0.06 | 1.01 | |||||||||||||
1977 | 0.36 | 0.27 | 0.38 | 0.33 | 0.63 | 0.40 | 0.12 | 0.28 | 0.57 | 0.17 | 1.19 | 0.33 | 1.19 | |||||||||||||
1978 | 0.33 | 0.25 | 0.39 | 1.22 | 0.47 | 0.35 | 0.57 | 0.54 | 0.29 | 0.00 | 0.63 | 0.98 | 1.22 | |||||||||||||
1979 | 0.42 | 0.32 | 0.66 | 0.50 | 0.76 | 0.28 | 0.00 | 0.46 | 0.01 | 0.52 | 0.64 | 0.15 | 0.76 | |||||||||||||
1980 | 0.39 | 0.33 | 0.35 | 0.43 | 0.43 | 0.60 | 0.09 | 0.35 | 0.31 | 0.19 | 0.28 | 0.68 | a | 0.68 | a | |||||||||||
1981 | 0.21 | 0.54 | 0.85 | 0.48 | 0.59 | 0.40 | 0.31 | 0.01 | 0.70 | 0.27 | 0.38 | a | 0.78 | d | 0.85 | e | ||||||||||
1982 | 0.49 | d | 0.30 | 0.23 | 0.09 | p | 0.33 | 0.66 | 0.32 | 0.43 | 0.72 | 0.72 | 0.18 | 0.37 | 0.72 | t | ||||||||||
1983 | 0.33 | 0.37 | 1.16 | 0.71 | 0.76 | 0.71 | 0.39 | 0.60 | 0.07 | 0.52 | 0.35 | 0.51 | b | 1.16 | b | |||||||||||
1984 | 0.23 | 0.40 | 0.83 | 0.61 | 0.54 | 0.43 | 0.11 | 1.27 | 0.31 | 0.36 | 0.48 | 0.29 | 1.27 | |||||||||||||
1985 | 0.23 | 0.34 | 0.23 | 0.38 | 0.63 | 0.09 | 0.27 | 0.31 | 0.24 | 0.36 | 0.36 | 0.48 | 0.63 | |||||||||||||
1986 | 0.30 | 0.87 | 0.33 | 0.15 | 1.13 | 0.18 | 0.22 | 0.08 | 0.47 | 0.30 | 0.49 | 0.15 | 1.13 | |||||||||||||
1987 | 0.31 | 0.38 | 0.71 | 0.18 | 0.54 | 0.51 | 0.61 | 0.06 | 0.09 | a | 0.00 | a | 0.23 | 0.38 | 0.71 | b | ||||||||||
1988 | 0.53 | 0.33 | 0.26 | 0.90 | 0.67 | 0.27 | 0.00 | 0.00 | 0.10 | 0.00 | 1.40 | g | 0.28 | c | 1.40 | j | ||||||||||
1989 | 1.61 | b | 0.77 | f | 0.41 | 0.56 | 1.11 | g | 0.48 | 0.17 | 0.45 | 0.45 | c | 0.20 | 0.18 | b | 0.30 | 1.61 | t | |||||||
1990 | 0.27 | e | 0.06 | c | 0.45 | 1.00 | a | 0.31 | c | 0.16 | a | 0.06 | a | 0.66 | 0.00 | 0.23 | a | 0.22 | c | 0.34 | e | 1.00 | w | |||
1991 | 0.42 | 0.53 | d | 0.83 | e | 0.47 | 0.48 | 0.50 | a | 1.35 | 0.47 | 0.00 | 0.28 | 0.55 | d | 0.28 | b | 1.35 | p | |||||||
1992 | 0.15 | 0.16 | 0.45 | 0.23 | 0.28 | 0.57 | 1.04 | b | 0.11 | 0.11 | 0.30 | 0.45 | 0.60 | a | 1.04 | c | ||||||||||
1993 | 0.38 | h | 0.30 | a | 0.61 | b | 0.28 | 0.45 | c | 0.65 | 0.86 | 0.45 | a | 0.00 | 0.32 | 0.21 | h | 0.27 | 0.86 | w | ||||||
1994 | 0.25 | 0.23 | c | 0.63 | 0.28 | 0.77 | a | 0.42 | 0.25 | 0.01 | 0.43 | 0.42 | a | 0.40 | b | 0.32 | c | 0.77 | j | |||||||
1995 | 0.52 | a | 0.75 | a | 1.06 | 0.55 | 0.26 | 0.60 | a | 0.16 | a | 0.32 | a | 0.17 | 0.26 | 1.11 | c | 0.74 | e | 1.11 | m | |||||
1996 | 0.30 | d | 0.24 | 0.35 | 0.31 | a | 0.40 | 0.70 | a | 0.25 | a | 1.30 | 0.36 | 0.42 | 1.25 | b | 0.93 | b | 1.30 | k | ||||||
1997 | 0.60 | a | 0.52 | 0.24 | a | 0.90 | 0.35 | 0.90 | a | 0.41 | 0.10 | 0.18 | a | 0.30 | 0.14 | c | 0.29 | 0.90 | g | |||||||
1998 | 0.63 | 0.38 | 0.25 | 0.26 | a | 0.75 | a | 0.50 | 0.17 | 0.00 | 0.12 | b | 0.50 | 0.45 | b | 0.28 | 0.75 | f | ||||||||
1999 | 0.40 | b | 0.43 | a | 0.30 | 0.19 | c | 0.34 | b | 0.31 | 0.00 | 0.91 | a | 0.00 | 0.70 | 0.64 | a | 0.12 | b | 0.91 | l | |||||
2000 | 0.74 | a | 0.22 | c | 0.75 | d | 0.12 | 0.33 | b | 0.62 | 0.22 | 0.00 | 0.69 | 0.81 | a | 0.52 | 0.30 | 0.81 | k | |||||||
2001 | 0.30 | a | 0.16 | a | 0.30 | c | 0.35 | a | 0.19 | 0.26 | a | 0.63 | 0.04 | 0.16 | a | 0.49 | a | 0.38 | c | 0.35 | 0.63 | l | ||||
2002 | 0.35 | 0.20 | 0.22 | a | 0.30 | a | 0.41 | 0.30 | a | 0.07 | 0.15 | 0.15 | 0.13 | 0.09 | 0.72 | 0.72 | c | |||||||||
2003 | 0.44 | a | 0.44 | a | 0.37 | c | 0.34 | 0.32 | 0.16 | 0.00 | 0.12 | 0.55 | 0.20 | 0.10 | a | 0.96 | 0.96 | f | ||||||||
2004 | 0.59 | 0.40 | 0.27 | 0.44 | 0.92 | 0.30 | 0.55 | 0.69 | 0.13 | 0.27 | 0.26 | a | 0.31 | 0.92 | a | |||||||||||
2005 | 0.19 | a | 0.51 | 0.23 | a | 0.61 | a | 0.80 | 0.31 | 0.15 | a | 0.08 | 0.02 | 1.25 | a | 0.70 | a | 0.55 | c | 1.25 | i | |||||
2006 | 0.37 | a | 0.31 | 0.32 | b | 0.42 | a | 0.50 | b | 0.74 | 0.00 | 0.59 | 0.24 | 0.22 | a | 0.41 | d | 0.66 | a | 0.74 | l | |||||
2007 | 0.52 | 0.23 | c | 0.31 | 0.49 | b | 0.16 | b | 0.68 | b | 0.01 | a | 0.13 | b | 0.52 | 0.63 | d | 1.25 | f | 0.40 | e | ----- | z | |||
2008 | 0.22 | 0.15 | i | 0.24 | f | 0.15 | d | 0.47 | 0.38 | e | 0.01 | 0.35 | b | 0.03 | a | 0.55 | j | 0.35 | e | 0.20 | i | ----- | z | |||
2009 | 0.48 | g | 0.19 | f | 0.66 | i | 0.37 | b | 0.82 | c | 0.28 | b | 0.15 | c | 1.03 | b | 0.10 | c | 0.46 | d | 0.36 | a | 0.32 | f | ----- | z |
2010 | 0.52 | g | 0.35 | e | 0.50 | i | 0.50 | b | 0.47 | i | 0.60 | d | 0.00 | 0.12 | 0.65 | b | 0.66 | g | 0.44 | l | 0.80 | j | ----- | z | ||
2011 | 0.90 | j | 0.35 | k | 0.50 | j | 0.30 | q | 1.90 | f | 1.06 | i | 0.16 | h | 0.05 | l | 0.05 | f | 0.31 | i | 0.21 | q | 0.38 | f | ----- | z |
2012 | 0.30 | u | 0.35 | f | 0.80 | k | 0.49 | i | 0.24 | i | 0.60 | i | 0.35 | h | 0.00 | d | 0.00 | g | 0.42 | l | 0.40 | m | 0.78 | l | ----- | z |
2013 | 0.90 | f | 0.15 | g | 0.25 | h | 0.20 | e | 0.56 | f | 0.40 | e | 0.00 | g | 0.72 | d | 0.68 | f | 0.60 | k | 0.10 | q | 0.30 | h | ----- | z |
2014 | 0.51 | d | 0.50 | f | 0.40 | o | 0.64 | j | 0.49 | n | 0.45 | l | 0.47 | o | 0.22 | s | 0.45 | k | 0.49 | n | 0.73 | t | 0.35 | y | ----- | z |
2015 | 0.23 | m | 0.15 | o | 0.65 | v | 0.32 | i | 0.40 | m | 0.17 | m | 0.49 | k | 0.00 | m | 0.30 | n | 0.13 | s | 0.85 | r | 0.52 | m | ----- | z |
2016 | 0.59 | n | 0.35 | m | 0.32 | j | 0.23 | u | 0.88 | u | 0.00 | 0.56 | 0.11 | 0.19 | 0.60 | d | 0.33 | o | ----- | z | ----- | z | ||||
2017 | 0.00 | q | 0.00 | 0.51 | i | 0.49 | b | 0.25 | a | 0.58 | 0.00 | 0.10 | 0.18 | 0.78 | b | 0.26 | ----- | z | ----- | z | ||||||
2018 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2019 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2020 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.43 | 0.32 | 0.42 | 0.42 | 0.48 | 0.44 | 0.27 | 0.33 | 0.27 | 0.37 | 0.44 | 0.44 | 0.87 | |||||||||||||
S.D. | 0.24 | 0.16 | 0.25 | 0.24 | 0.24 | 0.27 | 0.30 | 0.33 | 0.23 | 0.23 | 0.26 | 0.24 | 0.28 | |||||||||||||
SKEW | 2.79 | 0.88 | 1.18 | 1.24 | 0.70 | 1.69 | 1.56 | 1.19 | 0.63 | 1.18 | 1.42 | 0.86 | 1.00 | |||||||||||||
MAX | 1.61 | 0.87 | 1.16 | 1.22 | 1.13 | 1.66 | 1.35 | 1.30 | 0.73 | 1.25 | 1.25 | 1.07 | 1.66 | |||||||||||||
MIN | 0.15 | 0.00 | 0.08 | 0.12 | 0.11 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.09 | 0.06 | 0.52 | |||||||||||||
YRS | 47 | 47 | 47 | 51 | 49 | 51 | 52 | 53 | 52 | 50 | 47 | 47 | 25 |