YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1946 | ----- | z | ----- | z | ----- | z | 2.43 | 0.88 | 0.12 | 0.85 | 1.11 | 0.78 | 1.66 | 2.45 | 1.21 | 11.49 | c | |||||||||
1947 | 0.22 | 0.48 | 0.25 | 0.19 | 2.26 | 1.38 | 0.41 | 5.10 | 0.49 | 1.98 | 0.94 | 2.06 | 15.76 | |||||||||||||
1948 | 0.14 | 1.81 | 0.99 | 0.29 | 0.32 | 1.70 | 0.66 | 1.45 | 1.68 | 1.80 | 0.12 | 1.76 | 12.72 | |||||||||||||
1949 | 4.22 | 1.30 | 1.00 | 0.79 | 2.35 | 1.50 | 1.61 | 0.99 | 0.45 | 2.27 | 0.58 | 1.04 | 18.10 | |||||||||||||
1950 | 1.50 | 1.24 | 1.31 | 0.40 | 0.52 | 0.41 | 0.88 | 0.60 | 1.20 | 0.00 | 0.34 | 0.36 | 8.76 | |||||||||||||
1951 | 1.20 | 0.58 | 0.46 | 1.36 | 0.83 | 0.24 | 0.86 | 2.50 | 0.49 | 1.40 | 0.74 | 3.10 | 13.76 | |||||||||||||
1952 | 1.60 | 0.66 | 1.60 | 2.31 | 0.37 | 0.57 | 1.38 | 0.98 | 1.30 | 0.00 | 0.88 | 0.74 | 12.39 | |||||||||||||
1953 | 0.85 | 0.63 | 1.67 | 1.34 | 0.37 | 0.30 | 2.61 | 2.75 | 0.04 | 4.39 | 2.68 | 0.30 | 17.93 | |||||||||||||
1954 | 0.97 | 0.37 | 1.97 | 0.78 | 0.91 | 0.16 | 0.29 | 0.72 | 2.54 | 1.94 | 0.85 | 1.00 | 12.50 | |||||||||||||
1955 | 1.73 | 1.90 | 0.00 | 1.06 | 1.21 | 0.15 | 0.89 | 2.19 | 0.00 | 0.06 | 1.54 | 1.36 | 12.09 | |||||||||||||
1956 | 1.52 | 0.51 | 0.07 | 0.17 | 0.13 | 0.21 | 0.75 | 0.81 | 0.00 | 1.78 | 0.03 | 0.30 | 6.28 | |||||||||||||
1957 | 6.33 | 1.07 | 0.73 | 3.01 | 3.33 | 1.77 | 1.78 | 4.56 | 0.00 | 3.47 | 2.99 | 0.92 | 29.96 | |||||||||||||
1958 | 0.70 | 1.70 | 1.49 | 0.68 | 0.47 | 0.00 | 0.35 | 1.79 | 1.41 | a | 0.64 | 0.73 | 0.01 | 9.97 | ||||||||||||
1959 | 0.40 | 2.40 | 0.04 | 1.14 | 0.36 | 0.12 | 0.94 | 0.58 | 0.79 | 1.85 | 0.15 | a | 1.47 | 10.24 | ||||||||||||
1960 | 0.64 | 1.10 | b | 0.45 | 0.87 | 0.16 | 0.00 | 0.62 | 0.47 | 0.71 | 2.52 | 1.01 | 1.29 | 9.84 | ||||||||||||
1961 | 0.45 | 0.10 | 1.49 | 0.72 | 0.26 | 0.00 | 1.31 | 2.19 | 2.61 | 2.93 | 1.00 | ----- | z | 13.06 | a | |||||||||||
1962 | ----- | z | ----- | z | ----- | z | 0.74 | 0.35 | 0.30 | 0.43 | 0.23 | 1.96 | 1.39 | 1.79 | ----- | z | 7.19 | d | ||||||||
1963 | ----- | z | ----- | z | ----- | z | 0.60 | 0.15 | 0.20 | 0.17 | 3.70 | 0.90 | 1.39 | 0.34 | 0.25 | 7.70 | c | |||||||||
1964 | 0.48 | 0.00 | 0.41 | 0.89 | 0.74 | 0.03 | 1.33 | 2.54 | 1.28 | 0.00 | 1.14 | 1.12 | 9.96 | |||||||||||||
1965 | ----- | z | 0.89 | 1.08 | 1.92 | 1.33 | 1.77 | 1.17 | 1.95 | 2.97 | 2.30 | 1.42 | 3.38 | 20.18 | a | |||||||||||
1966 | 0.07 | 0.66 | 0.05 | 0.84 | 0.54 | 0.43 | 1.75 | 1.31 | 0.98 | 0.83 | 2.00 | 3.57 | 13.03 | |||||||||||||
1967 | 0.34 | 0.16 | 0.15 | 0.80 | 0.87 | 1.23 | 1.45 | 2.39 | 0.40 | 0.00 | 0.35 | 2.21 | a | 10.35 | ||||||||||||
1968 | 0.07 | b | 0.38 | 0.67 | 0.71 | 0.80 | 0.05 | 2.29 | 2.58 | 0.15 | 1.02 | 0.64 | 0.82 | 10.18 | ||||||||||||
1969 | 2.37 | 1.12 | 0.90 | 0.00 | 0.15 | 0.50 | 1.84 | 1.19 | 1.05 | 2.43 | 0.84 | 0.32 | 12.71 | |||||||||||||
1970 | 0.12 | 0.07 | 1.93 | 0.56 | 0.04 | 0.35 | 0.94 | 1.44 | 5.72 | 0.78 | 1.87 | 1.17 | 14.99 | |||||||||||||
1971 | 0.18 | 0.46 | 0.00 | 0.40 | 1.26 | 0.01 | 1.41 | 3.35 | 0.95 | 5.10 | 0.93 | 2.12 | 16.17 | |||||||||||||
1972 | 0.00 | 0.00 | 0.02 | 0.64 | 0.00 | 0.59 | 0.86 | 1.17 | 1.46 | 8.28 | 1.68 | 2.53 | 17.23 | |||||||||||||
1973 | 2.01 | 1.02 | 2.10 | 0.97 | 1.44 | 1.65 | 1.09 | 1.66 | 0.99 | 0.74 | 1.46 | 0.13 | 15.26 | |||||||||||||
1974 | 3.39 | 0.00 | 0.26 | 1.02 | 0.02 | 0.00 | 1.15 | 0.56 | 1.10 | 3.02 | 1.86 | 0.47 | 12.85 | |||||||||||||
1975 | 0.75 | 1.19 | 1.91 | 1.54 | 0.73 | 0.08 | 2.36 | 0.68 | 2.25 | 0.22 | 0.89 | 0.75 | 13.35 | |||||||||||||
1976 | 0.07 | 3.33 | 0.70 | 0.68 | 1.97 | 0.00 | 1.80 | 0.64 | 1.27 | 0.26 | 0.00 | 0.00 | 10.72 | |||||||||||||
1977 | 1.31 | 0.11 | 0.18 | 0.11 | 1.16 | 0.35 | 2.40 | 0.86 | 0.92 | 2.32 | 0.99 | 0.46 | 11.17 | |||||||||||||
1978 | 3.13 | 2.74 | 3.27 | 1.25 | 1.07 | 0.13 | 0.23 | 0.68 | 0.61 | 1.44 | 4.06 | 3.53 | 22.14 | |||||||||||||
1979 | 3.29 | 2.16 | 2.38 | 0.40 | 2.37 | 0.42 | 0.42 | 0.76 | 0.00 | 1.04 | 1.31 | 1.19 | 15.74 | |||||||||||||
1980 | 3.39 | 3.86 | 1.98 | 0.77 | 2.41 | 0.00 | 0.19 | 0.21 | 0.73 | 2.33 | 0.66 | 0.61 | 17.14 | |||||||||||||
1981 | 0.20 | 0.77 | 2.59 | 0.71 | 1.50 | 0.34 | 2.36 | 0.96 | 1.06 | 1.84 | 1.17 | 0.11 | 13.61 | |||||||||||||
1982 | 1.42 | 1.08 | 2.62 | d | 0.13 | 0.54 | a | 0.03 | 1.01 | 2.86 | 2.99 | 1.11 | 2.90 | 2.36 | 19.05 | |||||||||||
1983 | 1.08 | 1.60 | 3.15 | a | 1.35 | a | 1.15 | 0.70 | 1.80 | 1.03 | 1.13 | 0.22 | 2.44 | 1.84 | 17.49 | |||||||||||
1984 | 1.06 | 0.40 | 0.67 | 1.27 | 0.04 | 2.31 | 1.63 | 0.85 | 0.91 | 2.75 | 0.44 | 3.01 | a | 15.34 | ||||||||||||
1985 | 1.44 | 0.50 | 2.63 | 2.08 | 0.59 | 0.12 | 3.07 | 0.07 | 4.07 | 1.97 | 3.89 | 0.21 | 20.64 | |||||||||||||
1986 | 0.23 | 1.10 | 1.20 | 2.44 | b | 0.97 | 0.46 | 3.21 | 1.72 | 3.00 | 1.85 | 2.81 | 0.74 | 19.73 | ||||||||||||
1987 | 1.50 | 1.79 | 0.96 | 0.66 | 0.80 | 0.12 | 2.02 | 2.98 | 0.84 | 2.73 | 2.60 | 1.04 | a | 18.04 | ||||||||||||
1988 | 1.56 | 0.60 | 0.16 | 1.43 | 1.01 | 0.83 | 0.50 | 1.20 | 1.90 | 0.20 | 1.50 | 1.30 | a | 12.19 | ||||||||||||
1989 | 0.97 | a | 0.62 | 1.13 | 0.00 | 0.10 | 0.10 | 0.81 | 1.57 | 0.43 | 0.56 | 0.00 | 0.00 | 6.29 | ||||||||||||
1990 | 0.65 | 1.48 | 0.98 | 2.10 | 0.87 | 0.15 | 1.79 | 0.95 | 2.17 | 2.30 | 0.94 | 1.90 | 16.28 | |||||||||||||
1991 | 1.16 | 0.12 | 2.15 | a | 0.21 | 0.02 | 0.54 | 0.93 | 1.51 | 1.36 | 1.79 | 2.30 | 1.57 | 13.66 | ||||||||||||
1992 | 0.72 | 1.74 | 1.75 | 0.35 | 2.38 | 0.21 | 2.25 | 0.87 | 1.75 | 1.86 | 0.54 | 2.67 | a | 17.09 | ||||||||||||
1993 | 4.75 | 3.67 | 1.02 | 0.75 | 1.61 | 0.23 | 0.00 | 2.63 | c | 2.47 | 2.33 | 1.07 | 0.58 | 21.11 | ||||||||||||
1994 | 0.30 | a | 2.53 | 0.32 | 2.51 | 0.88 | 0.08 | 0.00 | 0.88 | 1.67 | 2.90 | 1.80 | 1.68 | a | 15.55 | |||||||||||
1995 | 2.51 | 0.55 | 2.96 | 2.05 | 2.83 | 1.17 | ----- | z | 1.13 | 1.04 | 0.00 | 0.29 | 0.05 | 14.58 | a | |||||||||||
1996 | 0.80 | 0.49 | 0.20 | 0.18 | 0.16 | 1.02 | e | 0.47 | 0.21 | 3.90 | a | 4.71 | 3.09 | 1.26 | a | 16.49 | ||||||||||
1997 | 4.01 | 2.46 | 0.05 | 2.07 | 2.19 | 0.36 | 1.80 | 2.81 | 1.84 | 1.98 | 0.85 | 1.16 | a | 21.58 | ||||||||||||
1998 | 1.01 | 1.89 | 2.05 | 0.93 | 0.76 | 0.15 | 1.44 | 0.45 | 0.37 | a | 4.08 | 2.19 | 0.16 | a | 15.48 | |||||||||||
1999 | 0.45 | 0.75 | 0.39 | 3.23 | 1.32 | 1.04 | 1.29 | 3.29 | b | 0.96 | 0.00 | 0.17 | 0.28 | 13.17 | ||||||||||||
2000 | 1.64 | 1.39 | 2.30 | 0.08 | 0.47 | a | 0.02 | 0.54 | a | 1.70 | 0.56 | 3.16 | 1.22 | 0.72 | b | 13.80 | ||||||||||
2001 | 1.41 | 0.86 | 0.86 | 1.47 | 0.95 | 0.12 | 0.34 | 2.96 | 0.00 | b | 0.39 | 1.51 | 0.95 | 11.82 | ||||||||||||
2002 | 0.23 | 0.10 | 1.00 | 0.24 | 0.04 | 0.00 | 0.53 | 0.70 | 2.32 | 2.72 | 0.68 | 0.42 | c | 8.98 | ||||||||||||
2003 | 0.23 | 2.56 | 1.36 | a | 0.09 | 0.43 | 0.14 | 0.59 | 0.76 | 2.00 | 1.56 | 1.14 | 0.43 | a | 11.29 | |||||||||||
2004 | 0.99 | a | 2.12 | 0.23 | c | 1.88 | 0.00 | 0.68 | c | 0.63 | 0.33 | 4.19 | 2.05 | 1.98 | 1.73 | 16.81 | ||||||||||
2005 | 4.05 | 4.05 | 1.60 | 1.45 | 0.34 | 0.71 | 0.90 | 0.90 | 3.60 | 1.13 | 0.46 | 0.23 | 19.42 | |||||||||||||
2006 | 0.31 | 0.03 | 1.85 | 0.56 | 0.08 | 0.70 | 2.17 | c | 1.25 | 2.18 | 4.58 | 0.31 | 0.61 | 14.63 | ||||||||||||
2007 | 0.43 | c | 0.59 | 0.91 | 1.66 | 1.29 | 0.29 | a | 1.90 | b | 1.23 | a | 2.74 | 1.05 | 0.20 | a | 3.72 | 16.01 | ||||||||
2008 | 3.28 | b | 1.98 | a | 0.00 | 0.66 | 1.23 | b | 0.47 | a | 0.73 | 0.52 | a | 0.47 | 1.18 | 1.05 | a | 2.47 | a | 14.04 | ||||||
2009 | 0.47 | 0.56 | 0.05 | a | 0.80 | 1.76 | a | 0.56 | c | 0.76 | 0.10 | 0.84 | 0.90 | 0.61 | 2.03 | 9.44 | ||||||||||
2010 | 2.36 | 1.62 | b | 1.84 | 0.86 | 0.11 | a | 0.46 | a | 0.94 | 2.73 | 1.46 | c | 2.22 | 0.67 | 3.08 | d | 18.35 | ||||||||
2011 | 0.00 | m | 0.36 | a | 0.23 | q | 1.03 | a | 1.69 | 0.02 | a | 1.58 | 1.41 | 1.12 | 1.64 | a | 0.95 | c | 0.54 | c | 10.34 | b | ||||
2012 | 0.78 | 1.11 | 0.36 | 0.63 | 0.00 | 0.07 | 1.20 | 1.66 | 1.08 | 0.32 | a | 0.56 | 0.97 | c | 8.74 | |||||||||||
2013 | 1.61 | 0.57 | a | 0.34 | 0.30 | 0.83 | a | 0.00 | 1.56 | 2.10 | 3.95 | 1.51 | b | 1.78 | c | 0.51 | 15.06 | |||||||||
2014 | 0.15 | 0.40 | 0.57 | 0.68 | 1.22 | a | 0.00 | 1.55 | 1.77 | 2.70 | 0.25 | 0.42 | c | 1.28 | a | 10.99 | ||||||||||
2015 | 1.10 | a | 1.10 | 0.85 | 0.89 | a | 2.64 | a | 2.60 | b | 3.94 | 1.43 | 0.39 | 2.93 | a | 2.27 | 1.50 | b | 21.64 | |||||||
2016 | 2.13 | a | 0.77 | 0.33 | c | 0.51 | 1.82 | 0.16 | d | 1.07 | a | 3.79 | b | 1.04 | 0.59 | 0.99 | 1.56 | b | 14.76 | |||||||
2017 | 3.09 | 0.90 | 0.89 | 0.48 | a | 0.97 | 0.00 | 3.09 | 0.98 | 0.91 | 0.00 | c | 0.00 | d | 0.05 | 11.36 | ||||||||||
2018 | 0.44 | 0.84 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 1.28 | j | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 1.38 | 1.14 | 1.09 | 0.99 | 0.94 | 0.47 | 1.27 | 1.54 | 1.47 | 1.76 | 1.24 | 1.23 | 14.51 | |||||||||||||
S.D. | 1.32 | 0.96 | 0.88 | 0.74 | 0.79 | 0.58 | 0.82 | 1.08 | 1.17 | 1.46 | 0.93 | 0.99 | 4.21 | |||||||||||||
SKEW | 1.47 | 1.20 | 0.64 | 1.04 | 0.92 | 1.78 | 0.87 | 1.09 | 1.25 | 1.53 | 0.97 | 0.86 | 0.72 | |||||||||||||
MAX | 6.33 | 4.05 | 3.27 | 3.23 | 3.33 | 2.60 | 3.94 | 5.10 | 5.72 | 8.28 | 4.06 | 3.72 | 29.96 | |||||||||||||
MIN | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.07 | 0.00 | 0.00 | 0.00 | 0.00 | 6.28 | |||||||||||||
YRS | 68 | 70 | 68 | 72 | 72 | 72 | 71 | 72 | 72 | 72 | 72 | 70 | 65 |