YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1963 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.10 | b | ----- | z |
1964 | 0.17 | ----- | z | ----- | z | 1.40 | 1.58 | 1.05 | 0.70 | 1.25 | 2.85 | 0.10 | 0.74 | 0.52 | ----- | z | ||||||||||
1965 | 0.20 | 0.68 | 2.02 | 0.65 | 0.60 | 1.00 | 1.45 | 1.25 | 1.55 | 1.35 | 1.35 | 1.00 | 2.02 | |||||||||||||
1966 | 0.47 | 0.60 | 1.15 | 0.56 | 0.15 | 1.60 | 2.63 | 2.00 | 0.70 | 1.08 | 0.50 | 0.50 | 2.63 | |||||||||||||
1967 | 0.40 | 0.20 | 0.30 | 0.90 | 0.50 | 1.50 | 0.57 | 1.40 | 0.90 | 0.75 | 0.25 | 0.27 | 1.50 | |||||||||||||
1968 | 0.18 | 0.07 | 1.14 | 2.00 | 0.70 | 1.10 | 1.82 | 0.55 | 1.25 | 1.85 | 0.50 | 0.70 | 2.00 | |||||||||||||
1969 | 0.60 | 0.03 | 0.30 | 1.25 | 0.25 | 0.73 | 1.10 | 2.80 | 0.80 | 0.60 | 0.40 | 0.50 | 2.80 | |||||||||||||
1970 | 0.08 | 0.12 | 0.90 | 0.90 | 3.10 | 0.55 | 1.20 | 1.76 | 0.40 | 2.00 | 1.37 | 0.60 | 3.10 | |||||||||||||
1971 | 0.20 | 0.38 | 0.60 | 0.40 | 1.25 | 1.00 | 1.10 | 4.00 | 1.33 | 2.40 | 0.65 | 0.24 | 4.00 | |||||||||||||
1972 | 0.60 | 0.20 | 0.40 | 0.40 | 0.90 | 1.95 | 2.70 | 1.80 | 2.65 | 0.50 | 1.37 | 0.45 | 2.70 | |||||||||||||
1973 | 0.23 | 0.10 | 0.98 | 0.50 | 1.40 | 0.67 | 0.97 | 1.73 | 0.96 | 0.97 | 1.03 | 0.20 | 1.73 | |||||||||||||
1974 | 0.20 | 0.35 | 0.22 | 0.15 | 1.02 | 1.86 | 1.25 | 1.85 | 0.41 | 0.37 | 1.65 | 0.42 | 1.86 | |||||||||||||
1975 | 0.66 | 0.18 | 0.40 | 0.57 | 0.55 | 1.62 | 0.73 | 0.92 | 0.55 | 0.85 | 1.23 | 0.20 | 1.62 | |||||||||||||
1976 | 0.45 | 0.47 | 0.97 | 0.56 | 0.13 | 0.91 | 1.25 | 0.43 | 0.60 | 0.41 | 0.25 | 0.10 | 1.25 | |||||||||||||
1977 | 0.13 | 0.29 | 0.83 | 0.70 | 1.50 | 0.77 | 1.18 | 1.88 | 2.30 | 1.10 | 1.20 | 0.35 | 2.30 | |||||||||||||
1978 | 0.25 | 0.10 | 0.16 | 1.05 | 1.07 | 0.74 | 1.87 | 2.16 | 0.90 | 0.60 | 0.53 | 0.40 | 2.16 | |||||||||||||
1979 | 0.26 | 0.72 | 0.80 | 0.40 | 1.60 | 1.35 | 1.86 | 0.40 | 2.10 | 1.28 | 0.20 | 0.08 | 2.10 | |||||||||||||
1980 | 0.63 | 0.13 | 0.28 | 0.26 | 0.56 | 0.82 | 1.50 | 0.95 | 1.58 | 0.33 | 0.26 | 0.20 | 1.58 | |||||||||||||
1981 | 0.05 | 0.57 | 1.00 | 1.50 | 0.25 | 2.10 | 1.11 | 1.53 | 1.07 | 0.83 | 0.38 | 0.21 | 2.10 | |||||||||||||
1982 | 0.35 | 0.04 | 0.47 | 0.69 | 1.35 | 1.80 | 2.00 | 0.26 | 0.89 | 1.40 | 0.87 | 1.15 | 2.00 | |||||||||||||
1983 | 0.55 | 0.20 | 0.20 | 0.80 | 0.50 | 0.34 | 2.48 | 2.35 | 1.85 | 0.55 | 1.45 | 0.40 | 2.48 | |||||||||||||
1984 | 0.10 | 0.45 | 0.08 | 1.32 | 1.00 | 1.25 | 1.05 | 0.92 | 3.85 | 1.40 | 0.15 | 0.90 | 3.85 | |||||||||||||
1985 | 0.04 | 0.15 | 0.90 | 0.90 | 1.68 | 1.85 | 1.31 | 1.50 | 2.52 | 0.70 | 0.80 | 0.60 | 2.52 | |||||||||||||
1986 | 0.33 | 0.50 | 0.53 | 1.35 | 1.50 | 2.25 | 1.62 | 1.46 | 1.60 | 0.57 | 0.50 | 0.14 | 2.25 | |||||||||||||
1987 | 0.25 | 0.12 | 0.38 | 0.18 | 1.50 | 1.12 | 1.85 | 1.30 | 0.55 | 0.12 | 1.40 | 0.27 | 1.85 | |||||||||||||
1988 | 0.65 | a | 0.02 | 0.55 | 0.30 | 1.86 | 0.80 | 0.82 | 2.00 | 2.20 | 0.23 | 1.12 | 0.68 | 2.20 | a | |||||||||||
1989 | 0.38 | 0.08 | 0.40 | 0.50 | 0.85 | 0.87 | 1.54 | 2.90 | 1.18 | 0.70 | 0.38 | 0.12 | 2.90 | |||||||||||||
1990 | 0.20 | 0.40 | 0.73 | 1.45 | 0.58 | 0.95 | 1.40 | 1.22 | 4.75 | 1.81 | 0.37 | 0.23 | b | 4.75 | b | |||||||||||
1991 | 0.10 | 0.29 | 1.10 | 0.95 | a | 1.02 | 1.31 | 2.16 | 1.74 | 1.69 | 0.75 | 2.57 | 0.17 | a | 2.57 | b | ||||||||||
1992 | 0.29 | 0.43 | 0.46 | 1.63 | 1.02 | 1.52 | 1.68 | 0.92 | 1.06 | 0.42 | a | 0.92 | a | 0.34 | d | 1.68 | f | |||||||||
1993 | 0.42 | 0.17 | 0.22 | 1.18 | 2.56 | 1.01 | 1.05 | 0.95 | 0.76 | 0.44 | 0.61 | 0.25 | 2.56 | |||||||||||||
1994 | 0.28 | 0.28 | 0.40 | b | 2.21 | a | 1.37 | 1.06 | 0.90 | 1.69 | 2.02 | 0.59 | 1.56 | a | 0.27 | a | 2.21 | e | ||||||||
1995 | 0.61 | 0.46 | c | 0.08 | g | 0.92 | 1.50 | 0.84 | 0.81 | 1.76 | 1.86 | 1.08 | 0.32 | a | 0.63 | b | 1.86 | m | ||||||||
1996 | 0.68 | 0.37 | 0.18 | c | 0.42 | 0.70 | 2.54 | 3.18 | 0.60 | 0.64 | 1.10 | 1.64 | 0.21 | 3.18 | c | |||||||||||
1997 | 1.15 | c | 0.51 | b | 0.19 | a | 0.08 | a | 0.54 | 1.36 | e | 1.08 | 1.67 | 0.55 | 0.95 | 0.61 | 0.15 | a | 1.67 | m | ||||||
1998 | 0.26 | f | 0.95 | c | 0.25 | 0.39 | 1.50 | c | 1.58 | m | 1.22 | a | 0.66 | a | 0.69 | 0.80 | 1.56 | 0.26 | d | ----- | z | |||||
1999 | 0.17 | 0.18 | a | 0.62 | b | 0.75 | 0.82 | c | 2.08 | f | 3.30 | 1.42 | a | 0.89 | 1.52 | 0.62 | 0.03 | 3.30 | m | |||||||
2000 | 0.24 | 0.46 | d | 1.41 | a | 0.10 | 1.02 | b | 1.22 | d | 1.10 | 2.21 | 0.50 | 0.43 | a | 1.02 | a | 0.22 | 2.21 | m | ||||||
2001 | 0.54 | 1.26 | e | 0.48 | 2.05 | 0.90 | b | 0.98 | f | 0.86 | 0.98 | b | 0.48 | a | 0.61 | ----- | z | 0.50 | a | ----- | z | |||||
2002 | 0.02 | 0.72 | c | 0.79 | 1.93 | a | 1.64 | 0.97 | f | 1.26 | c | 1.78 | d | 1.08 | d | 1.86 | 0.01 | 0.72 | 1.93 | u | ||||||
2003 | 0.01 | 0.03 | b | 0.31 | 0.64 | 1.48 | 0.98 | h | 3.56 | j | 0.32 | 1.81 | 0.68 | 0.48 | 0.54 | 3.56 | t | |||||||||
2004 | 0.26 | 0.32 | 0.98 | 0.65 | 1.14 | 0.62 | a | 2.69 | a | 0.83 | 0.95 | 1.69 | 0.13 | 0.77 | 2.69 | b | ||||||||||
2005 | 0.54 | 0.34 | a | 0.27 | ----- | z | 0.74 | f | 1.72 | k | 0.59 | 2.18 | 1.95 | 1.97 | a | 1.42 | 0.44 | ----- | z | |||||||
2006 | 0.23 | 0.29 | 0.49 | a | 0.59 | 0.96 | a | 0.92 | f | 2.35 | b | 0.60 | 1.03 | 1.07 | a | 1.14 | 1.02 | 2.35 | k | |||||||
2007 | 0.02 | c | 0.48 | a | 0.45 | 0.70 | a | 0.42 | b | 0.98 | f | 0.85 | 1.05 | 1.40 | a | 2.65 | b | 0.20 | c | 0.68 | 2.65 | s | ||||
2008 | 0.07 | e | 0.26 | b | 0.18 | a | 0.88 | b | 1.54 | c | ----- | z | 1.10 | b | 2.95 | 1.98 | a | 0.79 | b | 0.41 | a | 0.70 | a | ----- | z | |
2009 | ----- | z | 0.39 | a | 1.62 | b | ----- | z | 0.66 | 1.12 | b | 1.69 | 3.86 | e | 0.24 | 1.64 | 0.24 | c | 0.90 | ----- | z | |||||
2010 | 0.82 | 0.19 | 0.45 | 0.21 | 1.25 | c | 2.06 | g | 1.58 | 2.36 | 0.96 | 3.36 | 0.93 | c | 0.80 | d | 3.36 | q | ||||||||
2011 | 0.26 | q | 0.01 | s | ----- | z | 0.80 | r | 1.15 | t | 0.93 | c | 2.12 | b | 5.50 | a | 0.27 | 0.36 | 0.40 | a | 0.11 | ----- | z | |||
2012 | 0.14 | 0.50 | b | 0.41 | b | 1.42 | 2.40 | a | 3.23 | c | 1.35 | a | 0.74 | 0.50 | e | 0.57 | c | 0.51 | a | 0.33 | 3.23 | r | ||||
2013 | ----- | z | 0.27 | 0.39 | c | 0.56 | a | ----- | z | ----- | z | 0.78 | b | 1.44 | 0.50 | b | 1.63 | 0.28 | 0.68 | a | ----- | z | ||||
2014 | 0.12 | 0.42 | b | 0.37 | u | 0.85 | 2.04 | c | 0.84 | e | 0.79 | c | 0.70 | a | 0.94 | a | 0.74 | 0.75 | a | 0.55 | c | ----- | z | |||
2015 | 0.12 | b | 0.25 | 0.17 | 0.52 | 1.16 | b | 0.72 | a | ----- | z | 1.52 | b | 1.06 | a | 0.75 | c | 0.62 | 0.92 | ----- | z | |||||
2016 | 0.40 | ----- | z | ----- | z | 1.92 | ----- | z | 1.58 | k | 4.87 | c | 1.65 | c | 1.06 | e | 0.79 | ----- | z | ----- | z | ----- | z | |||
2017 | ----- | z | ----- | z | ----- | z | ----- | z | 1.02 | b | 1.15 | g | 1.67 | ----- | z | ----- | z | 3.28 | 0.32 | b | ----- | z | ----- | z | ||
2018 | 0.26 | ----- | z | 0.42 | a | ----- | z | ----- | z | 8.00 | h | 1.95 | m | 2.92 | v | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.32 | 0.34 | 0.59 | 0.86 | 1.13 | 1.24 | 1.54 | 1.60 | 1.30 | 1.06 | 0.77 | 0.45 | 2.44 | |||||||||||||
S.D. | 0.24 | 0.24 | 0.41 | 0.55 | 0.61 | 0.59 | 0.81 | 0.98 | 0.89 | 0.73 | 0.53 | 0.28 | 0.77 | |||||||||||||
SKEW | 1.08 | 1.36 | 1.36 | 0.79 | 0.82 | 1.29 | 1.77 | 1.61 | 1.66 | 1.34 | 0.95 | 0.59 | 1.15 | |||||||||||||
MAX | 1.15 | 1.26 | 2.02 | 2.21 | 3.10 | 3.23 | 4.87 | 5.50 | 4.75 | 3.36 | 2.57 | 1.15 | 4.75 | |||||||||||||
MIN | 0.01 | 0.02 | 0.08 | 0.08 | 0.13 | 0.34 | 0.57 | 0.26 | 0.24 | 0.10 | 0.01 | 0.03 | 1.25 | |||||||||||||
YRS | 50 | 50 | 49 | 50 | 50 | 41 | 52 | 53 | 53 | 54 | 52 | 53 | 30 |