YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1950 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1951 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1952 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1953 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.02 | a | 1.04 | 1.17 | h | 0.00 | 0.04 | 0.16 | a | 0.02 | ----- | z | ||||
1954 | 0.99 | 0.25 | 1.34 | h | 0.00 | 0.02 | 0.66 | a | 0.34 | 0.15 | 0.01 | 0.00 | 0.00 | 0.20 | 1.34 | i | ||||||||||
1955 | 0.63 | 0.00 | 0.00 | 0.05 | 0.01 | 0.00 | 1.04 | c | 0.25 | 0.00 | 0.01 | 0.07 | 0.20 | 1.04 | c | |||||||||||
1956 | 0.06 | 0.00 | 0.00 | 0.22 | 0.00 | 0.00 | 0.27 | 0.00 | 0.00 | 0.12 | 0.00 | 0.00 | 0.27 | |||||||||||||
1957 | ----- | z | 0.20 | q | 0.12 | a | 0.51 | 0.15 | 0.10 | 0.16 | 0.56 | 0.01 | 0.88 | 0.17 | 0.29 | ----- | z | |||||||||
1958 | 0.51 | 0.83 | 0.72 | 0.73 | 0.60 | 0.03 | 0.72 | 0.62 | 0.32 | 1.72 | 0.59 | 0.00 | 1.72 | |||||||||||||
1959 | 0.36 | 0.34 | 0.00 | 0.02 | 0.00 | 0.00 | 0.18 | 2.81 | 0.14 | 0.71 | 0.36 | 1.59 | 2.81 | |||||||||||||
1960 | 0.58 | 0.50 | 0.02 | 0.03 | 0.05 | 0.00 | 0.22 | 0.00 | 0.79 | 0.16 | 0.27 | 0.00 | 0.79 | |||||||||||||
1961 | 0.40 | 0.00 | 0.10 | 0.47 | 0.03 | 0.00 | 0.34 | 0.88 | 0.20 | 0.28 | 0.22 | 0.52 | 0.88 | |||||||||||||
1962 | 0.50 | 0.70 | 0.09 | 0.00 | 0.14 | 0.12 | 0.10 | 0.06 | 0.25 | 0.10 | 0.00 | 0.74 | 0.74 | |||||||||||||
1963 | 0.12 | 0.92 | 0.87 | 0.16 | 0.00 | 0.00 | 0.60 | 0.27 | 0.90 | 0.76 | 0.72 | 0.03 | 0.92 | |||||||||||||
1964 | 0.24 | 0.00 | 0.39 | 0.23 | 0.16 | 0.03 | 1.06 | 1.02 | 0.36 | 0.06 | 0.08 | 0.15 | 1.06 | |||||||||||||
1965 | ----- | z | 0.47 | 0.42 | 0.65 | 0.01 | 0.00 | 0.65 | 0.10 | 0.02 | 0.21 | 1.95 | 1.06 | ----- | z | |||||||||||
1966 | 0.14 | 0.68 | 0.25 | 0.00 | 0.00 | 0.22 | 0.08 | 0.32 | 0.03 | 0.11 | 0.51 | 0.86 | 0.86 | |||||||||||||
1967 | 0.60 | 0.00 | 0.46 | 0.52 | 0.07 | 0.00 | 0.65 | 0.89 | 0.33 | 0.00 | 0.44 | 0.85 | 0.89 | |||||||||||||
1968 | 0.14 | 0.27 | 0.65 | 0.08 | 0.08 | 0.51 | 0.84 | 0.11 | 0.11 | 0.24 | 0.13 | 0.16 | 0.84 | |||||||||||||
1969 | 0.50 | 0.29 | 0.32 | 0.00 | 0.25 | 0.00 | 0.22 | 0.34 | 1.16 | 0.07 | 0.31 | 0.00 | 1.16 | |||||||||||||
1970 | 0.04 | 0.06 | 1.34 | 0.10 | 0.00 | 0.00 | 0.13 | 0.67 | 0.04 | 0.00 | 0.41 | 0.14 | 1.34 | |||||||||||||
1971 | 0.00 | 0.26 | 0.00 | 0.03 | 0.45 | 0.00 | 0.17 | 0.90 | 0.32 | 0.41 | 0.00 | 0.36 | 0.90 | |||||||||||||
1972 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.44 | 0.51 | 0.12 | 0.48 | 0.51 | 0.80 | 0.21 | 0.80 | |||||||||||||
1973 | 0.44 | 0.56 | 1.77 | 0.00 | 0.13 | 0.01 | 0.10 | 0.22 | 0.00 | 0.00 | 0.57 | 0.01 | 1.77 | |||||||||||||
1974 | 0.55 | 0.02 | 0.54 | 0.03 | 0.03 | 0.00 | 2.00 | 0.24 | 0.09 | 0.36 | 0.46 | 0.72 | 2.00 | |||||||||||||
1975 | 0.13 | 0.34 | 0.27 | 0.16 | 0.00 | 0.00 | 0.08 | 0.11 | 0.22 | 0.10 | 0.34 | 0.14 | 0.34 | |||||||||||||
1976 | 0.00 | 1.53 | a | 0.30 | 0.73 | 0.16 | 0.00 | 0.19 | 0.00 | 1.46 | 0.32 | 0.11 | 0.51 | 1.53 | a | |||||||||||
1977 | 0.53 | 0.00 | 0.24 | 0.22 | 0.24 | 0.03 | 1.29 | 1.01 | 0.01 | 0.02 | 0.09 | 0.34 | 1.29 | |||||||||||||
1978 | 0.92 | 0.88 | 0.92 | 0.71 | 0.06 | 0.00 | 0.28 | 0.13 | 0.00 | 1.95 | 1.01 | 1.41 | 1.95 | |||||||||||||
1979 | 0.96 | a | 0.25 | 0.66 | 0.00 | 0.24 | 0.03 | 1.97 | 0.57 | 0.00 | 0.46 | 0.00 | 0.56 | 1.97 | a | |||||||||||
1980 | 0.80 | 0.76 | a | 0.46 | 0.48 | 0.12 | 0.00 | 0.21 | 0.00 | 0.58 | 0.05 | 0.00 | 0.05 | 0.80 | a | |||||||||||
1981 | 0.16 | 0.20 | 1.05 | 0.03 | 0.83 | 0.09 | 0.22 | 0.47 | 3.61 | 0.56 | 0.15 | 0.00 | 3.61 | |||||||||||||
1982 | 0.47 | 1.15 | 0.36 | v | 0.10 | 0.20 | 0.00 | 0.58 | 0.61 | 0.25 | 0.09 | 0.36 | 0.81 | 1.15 | v | |||||||||||
1983 | 0.11 | 0.47 | 0.77 | 0.24 | 0.00 | 0.00 | 0.24 | 0.95 | 0.54 | 0.85 | 0.18 | 0.60 | 0.95 | |||||||||||||
1984 | 0.00 | 0.00 | 0.00 | 0.00 | 0.02 | 0.00 | 1.44 | 0.68 | 0.19 | 0.00 | 0.72 | 0.70 | 1.44 | |||||||||||||
1985 | 0.56 | 0.27 | 0.22 | 0.05 | 0.00 | 0.01 | 0.14 | 0.00 | 0.67 | 1.04 | 0.69 | 0.02 | 1.04 | |||||||||||||
1986 | 0.27 | 1.04 | 1.64 | 0.34 | 0.26 | 0.07 | 0.42 | 0.77 | 1.34 | 0.57 | 0.60 | 1.28 | 1.64 | |||||||||||||
1987 | 0.38 | 0.20 | 0.13 | 0.06 | 0.16 | 0.28 | 0.10 | 0.35 | 0.85 | 0.30 | 0.60 | 0.22 | 0.85 | |||||||||||||
1988 | 0.98 | a | 0.67 | 0.00 | 0.78 | 0.03 | 0.00 | 0.27 | 0.68 | 0.00 | 0.06 | 0.32 | 0.12 | 0.98 | a | |||||||||||
1989 | 0.62 | 0.11 | 0.46 | 0.00 | 0.01 | 0.00 | 0.20 | 0.06 | 0.07 | 0.25 | 0.00 | 0.05 | 0.62 | |||||||||||||
1990 | 0.80 | 0.49 | 0.36 | 0.13 | 0.80 | 0.31 | 0.41 | 0.46 | 0.72 | 0.12 | 0.16 | 0.02 | a | 0.80 | a | |||||||||||
1991 | 1.00 | 0.56 | 1.00 | 0.00 | 0.00 | 0.05 | 0.00 | 0.18 | 0.33 | 0.11 | 0.44 | ----- | z | ----- | z | |||||||||||
1992 | 0.84 | 0.65 | 1.18 | 0.09 | 0.19 | 0.00 | 0.00 | 0.47 | 0.02 | 0.84 | 0.00 | 0.95 | 1.18 | |||||||||||||
1993 | 1.54 | 1.55 | 0.42 | 0.00 | 0.01 | 0.00 | 0.00 | 0.57 | 0.28 | 0.20 | 0.20 | 0.23 | 1.55 | |||||||||||||
1994 | 0.08 | 0.16 | 1.27 | 0.14 | 0.09 | 0.00 | 0.47 | 0.03 | 0.03 | 0.31 | 0.39 | 0.20 | 1.27 | |||||||||||||
1995 | 1.14 | 0.41 | 0.70 | 0.13 | 0.11 | 0.00 | 0.00 | 0.06 | 0.26 | 0.00 | 0.06 | 0.03 | 1.14 | |||||||||||||
1996 | 0.21 | 0.53 | 0.07 | 0.00 | 0.04 | 0.00 | 0.00 | 0.45 | 0.10 | 0.15 | 1.14 | 0.00 | 1.14 | |||||||||||||
1997 | 1.20 | 1.15 | 0.00 | ----- | z | 0.10 | j | 0.01 | 0.01 | 1.67 | 1.05 | 0.00 | 0.29 | 0.51 | ----- | z | ||||||||||
1998 | 0.48 | 1.42 | 0.34 | 0.34 | 0.14 | 0.00 | 0.46 | 0.80 | 0.58 | 0.01 | 0.60 | 0.14 | 1.42 | |||||||||||||
1999 | 0.24 | 0.63 | 0.02 | 0.49 | 0.07 | 0.00 | 1.40 | 0.33 | 0.58 | 0.00 | 0.00 | 0.00 | 1.40 | |||||||||||||
2000 | 0.00 | a | 0.35 | 0.19 | 0.00 | 0.00 | 0.36 | 0.00 | 0.83 | 0.00 | 0.49 | 0.05 | 0.00 | 0.83 | a | |||||||||||
2001 | 0.77 | 0.62 | 0.62 | 0.22 | 0.00 | 0.00 | 1.04 | 0.40 | 0.24 | 0.36 | 0.15 | 0.13 | 1.04 | |||||||||||||
2002 | 0.00 | 0.00 | 0.02 | 0.00 | 0.00 | 0.00 | 0.01 | c | 0.00 | 0.85 | 0.30 | 0.79 | 0.24 | 0.85 | c | |||||||||||
2003 | 0.30 | 1.01 | 0.98 | 0.40 | 0.00 | 0.00 | 0.10 | 0.52 | 1.25 | 0.00 | 0.25 | 0.45 | 1.25 | |||||||||||||
2004 | 0.23 | 0.47 | 0.17 | 0.81 | 0.00 | 0.00 | 0.12 | 0.21 | 0.61 | 2.14 | 1.25 | 0.34 | 2.14 | |||||||||||||
2005 | 0.67 | 1.40 | 0.45 | 0.31 | 0.00 | 0.00 | 0.36 | 0.35 | 0.00 | 0.80 | 0.14 | 0.00 | 1.40 | |||||||||||||
2006 | 0.00 | 0.11 | 0.36 | d | 0.09 | 0.00 | 0.10 | a | 0.66 | 0.10 | 0.10 | 0.21 | 0.00 | 0.00 | 0.66 | e | ||||||||||
2007 | 0.18 | 0.31 | 0.08 | 0.00 | 0.00 | 0.00 | 0.60 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | |||||||
2008 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2009 | ----- | z | ----- | z | 0.00 | a | 0.03 | 0.00 | 0.00 | 0.44 | 0.28 | 0.00 | 0.00 | 0.04 | 0.54 | ----- | z | |||||||||
2010 | 1.49 | 0.16 | d | 0.37 | 0.00 | 0.00 | 0.00 | 0.25 | 0.07 | 0.02 | 0.47 | 0.02 | 0.50 | 1.49 | d | |||||||||||
2011 | 0.00 | 1.27 | 0.49 | 0.37 | 0.18 | 0.00 | 0.20 | 0.20 | 0.37 | 0.07 | 0.36 | 0.28 | 1.27 | |||||||||||||
2012 | 0.01 | 0.06 | 0.19 | 0.21 | 0.00 | h | 0.00 | 1.57 | 0.37 | 0.06 | 0.43 | 0.00 | 0.56 | 1.57 | h | |||||||||||
2013 | 0.46 | a | 0.16 | a | 0.26 | 0.00 | 0.00 | 0.00 | 0.39 | b | 0.38 | 2.07 | a | 0.01 | 0.22 | 0.02 | 2.07 | e | ||||||||
2014 | 0.00 | d | 0.07 | d | 0.38 | b | 0.03 | i | 0.00 | c | 0.00 | d | 0.13 | f | 1.04 | e | 1.02 | c | 0.69 | b | 0.00 | a | 0.41 | b | ----- | z |
2015 | 0.23 | b | 0.00 | i | 1.13 | h | 0.00 | e | 0.03 | h | 0.64 | e | ----- | z | 0.20 | a | ----- | z | 0.10 | u | 0.00 | g | 0.00 | c | ----- | z |
2016 | 0.40 | e | 0.10 | 0.00 | 0.20 | 0.00 | 0.00 | 0.30 | 0.10 | 0.10 | f | 0.00 | b | 0.10 | b | 0.67 | a | 0.67 | p | |||||||
2017 | 0.50 | 0.00 | a | 0.20 | b | 0.00 | k | 0.00 | 0.00 | 0.00 | d | 0.00 | 0.14 | d | 0.00 | j | 0.00 | f | 0.00 | w | ----- | z | ||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.44 | 0.46 | 0.42 | 0.19 | 0.10 | 0.06 | 0.45 | 0.44 | 0.43 | 0.35 | 0.33 | 0.35 | 1.25 | |||||||||||||
S.D. | 0.39 | 0.43 | 0.43 | 0.24 | 0.18 | 0.15 | 0.48 | 0.46 | 0.61 | 0.46 | 0.37 | 0.38 | 0.59 | |||||||||||||
SKEW | 0.88 | 0.94 | 1.28 | 1.22 | 2.72 | 2.71 | 1.58 | 2.54 | 2.89 | 2.22 | 1.94 | 1.32 | 1.70 | |||||||||||||
MAX | 1.54 | 1.55 | 1.77 | 0.81 | 0.83 | 0.66 | 2.00 | 2.81 | 3.61 | 2.14 | 1.95 | 1.59 | 3.61 | |||||||||||||
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 | 0.27 | |||||||||||||
YRS | 60 | 60 | 60 | 60 | 60 | 64 | 62 | 62 | 61 | 61 | 61 | 61 | 48 |