YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1922 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.25 | 1.31 | 1.21 | 0.07 | 0.00 | 0.50 | 0.03 | 3.37 | e | |||||||
1923 | 0.03 | 0.31 | 0.40 | 0.99 | 2.71 | 4.02 | 1.57 | 2.33 | 0.70 | 2.82 | 0.38 | ----- | z | 16.26 | a | |||||||||||
1924 | ----- | z | ----- | z | ----- | z | ----- | z | 1.61 | 0.83 | 1.38 | ----- | z | 0.91 | 1.17 | 0.00 | 0.86 | 6.76 | e | |||||||
1925 | 0.10 | 0.36 | 0.34 | 0.40 | 2.00 | 0.73 | 5.20 | 2.87 | 0.75 | 0.91 | 2.95 | 0.00 | 16.61 | |||||||||||||
1926 | 0.13 | 0.00 | 1.13 | 0.54 | 2.33 | 2.13 | 1.35 | 1.95 | 0.35 | 0.34 | 0.13 | 0.20 | 10.58 | |||||||||||||
1927 | 0.25 | 0.30 | 0.50 | 0.84 | 0.06 | 3.04 | 7.12 | 3.48 | ----- | z | ----- | z | ----- | z | ----- | z | 15.59 | d | ||||||||
1928 | 0.00 | 0.21 | a | 0.75 | 0.59 | 4.53 | 4.06 | 2.95 | 0.61 | 0.02 | 2.56 | 0.85 | 0.00 | 17.13 | ||||||||||||
1929 | 0.00 | ----- | z | ----- | z | 1.05 | 0.86 | 0.64 | 1.71 | 1.66 | 0.86 | 0.96 | 0.85 | 0.00 | i | 8.59 | c | |||||||||
1930 | 0.80 | 0.18 | 0.35 | 1.34 | 6.45 | 0.79 | 3.27 | 1.50 | 0.44 | 1.23 | 2.39 | a | 0.37 | 19.11 | ||||||||||||
1931 | 0.00 | 0.85 | 0.30 | 0.14 | 2.63 | 1.45 | 0.23 | 1.11 | 0.21 | 0.15 | 0.51 | 0.00 | 7.58 | |||||||||||||
1932 | 0.46 | 0.02 | 0.48 | f | 2.31 | 0.25 | 2.19 | 2.10 | 1.16 | 0.30 | 0.19 | 0.02 | 0.45 | 9.45 | a | |||||||||||
1933 | 0.00 | 0.00 | 0.05 | 2.41 | 1.87 | 2.18 | 2.28 | 2.28 | 3.01 | 0.00 | 0.08 | 0.65 | 14.81 | |||||||||||||
1934 | 0.00 | 0.72 | 0.05 | 0.73 | 0.16 | 1.98 | 1.78 | 1.10 | 0.91 | 0.01 | 0.13 | 0.00 | 7.57 | |||||||||||||
1935 | 0.00 | 0.11 | 0.49 | c | 0.14 | 3.71 | 2.50 | 0.59 | 0.00 | 1.42 | 0.13 | 0.26 | 0.21 | 9.56 | ||||||||||||
1936 | 0.29 | 0.00 | 0.12 | 0.29 | 1.83 | 1.37 | 2.44 | 1.05 | 1.76 | 0.37 | 0.00 | 0.00 | 9.52 | |||||||||||||
1937 | 0.00 | 0.00 | 0.23 | 0.20 | 0.31 | 3.19 | 0.32 | 1.43 | 0.12 | 0.35 | 0.27 | 0.05 | 6.47 | |||||||||||||
1938 | 0.05 | 0.17 | 0.39 | 0.48 | 2.89 | 1.47 | 2.90 | 0.50 | 2.23 | 0.13 | 1.05 | 0.07 | 12.33 | |||||||||||||
1939 | 0.82 | 0.83 | 0.26 | 0.54 | 0.76 | 1.36 | 2.17 | 1.70 | 0.35 | 0.05 | 0.39 | 0.37 | 9.60 | |||||||||||||
1940 | 0.14 | 0.15 | 0.94 | 1.77 | 4.23 | 0.76 | 3.55 | 1.23 | 0.85 | 0.41 | 0.24 | 0.24 | 14.51 | |||||||||||||
1941 | 0.16 | 0.09 | 1.45 | 1.90 | 3.47 | 1.08 | 4.10 | 1.39 | 5.43 | 2.13 | 0.10 | 0.20 | 21.50 | |||||||||||||
1942 | 0.11 | 0.70 | 0.25 | 4.13 | 0.14 | 4.08 | 0.90 | 4.20 | 2.04 | 3.89 | 0.04 | 0.83 | 21.31 | |||||||||||||
1943 | 0.10 | 0.06 | 0.40 | 0.90 | 2.38 | 0.52 | 2.65 | 2.04 | 0.12 | 0.35 | 0.10 | 0.70 | 10.32 | |||||||||||||
1944 | 0.52 | 0.21 | 0.20 | e | 3.43 | 6.00 | 0.82 | 1.54 | 0.57 | 0.11 | 3.51 | 0.85 | 0.18 | 17.94 | ||||||||||||
1945 | 0.76 | 0.14 | 0.00 | 0.90 | a | 2.06 | 4.13 | 1.76 | 3.17 | 0.74 | 0.40 | 0.13 | 0.02 | 14.21 | ||||||||||||
1946 | 0.36 | 0.38 | 1.39 | 0.53 | 2.33 | 2.06 | 0.81 | 3.32 | 0.44 | 1.39 | 3.82 | 0.00 | 16.83 | |||||||||||||
1947 | 0.22 | 0.65 | 0.22 | 1.01 | 4.14 | 2.64 | 1.52 | 1.65 | 0.24 | 0.21 | 0.19 | 0.66 | 13.35 | |||||||||||||
1948 | 0.42 | 0.85 | 1.54 | 0.38 | 2.48 | 4.40 | 2.49 | 2.14 | 0.77 | 0.00 | 0.08 | 0.06 | 15.61 | |||||||||||||
1949 | 0.50 | 0.02 | ----- | z | 0.76 | 3.56 | 3.47 | c | 4.00 | 1.98 | 0.17 | 1.01 | 0.00 | 0.00 | 15.47 | a | ||||||||||
1950 | 0.00 | 0.15 | b | 0.25 | a | 0.36 | 1.38 | 1.85 | 4.49 | 1.61 | 1.90 | 0.10 | 0.06 | 0.00 | 12.15 | |||||||||||
1951 | 1.09 | 0.16 | 0.15 | 0.98 | 2.11 | 1.31 | 0.28 | 0.83 | 1.66 | 0.33 | 0.90 | 0.18 | 9.98 | |||||||||||||
1952 | 0.00 | 0.36 | 0.83 | 1.74 | 0.37 | 0.13 | a | 0.23 | 4.90 | 2.03 | 0.00 | 0.68 | 0.15 | 11.42 | ||||||||||||
1953 | 0.10 | 0.00 | 0.49 | 3.83 | 2.27 | 0.69 | 0.18 | b | 1.76 | 0.00 | 1.22 | 1.24 | 0.36 | 12.14 | ||||||||||||
1954 | 0.33 | ----- | z | 0.16 | 0.10 | 2.33 | 0.10 | ----- | z | 1.37 | 0.21 | 1.07 | 0.04 | 0.44 | 6.15 | b | ||||||||||
1955 | 0.00 | 0.29 | 0.13 | 0.00 | 1.59 | 0.58 | 0.28 | 2.29 | 0.45 | 0.04 | 0.06 | 0.21 | 5.92 | |||||||||||||
1956 | 0.28 | 0.20 | 0.35 | 0.46 | 1.09 | 0.18 | 1.08 | 0.79 | 0.00 | 0.07 | 0.10 | c | 0.40 | 5.00 | ||||||||||||
1957 | 0.19 | 0.24 | 0.50 | 3.43 | 1.51 | 1.32 | 2.01 | 0.10 | 1.68 | 0.56 | 1.06 | 0.00 | 12.60 | |||||||||||||
1958 | 0.66 | 0.30 | 1.22 | 0.14 | a | 3.34 | 0.91 | 2.46 | 1.88 | ----- | z | ----- | z | ----- | z | ----- | z | 10.91 | d | |||||||
1959 | ----- | z | ----- | z | 0.68 | 1.17 | 1.93 | 1.86 | 0.97 | 1.36 | 1.55 | 1.75 | 0.45 | 0.00 | 11.72 | b | ||||||||||
1960 | 1.75 | 2.84 | 0.40 | 1.45 | 0.91 | 0.82 | 1.75 | 0.37 | 1.03 | 1.46 | 0.22 | 0.42 | 13.42 | |||||||||||||
1961 | 0.03 | 0.55 | 0.97 | 0.31 | 2.40 | 3.23 | 1.91 | 1.61 | 0.87 | 0.32 | 0.55 | 0.30 | 13.05 | |||||||||||||
1962 | 0.26 | 0.20 | 0.42 | 0.57 | 4.17 | 2.59 | 5.13 | 0.40 | 0.75 | 0.19 | 0.60 | 0.19 | 15.47 | |||||||||||||
1963 | 0.13 | 0.05 | 0.89 | 0.00 | 1.81 | 0.98 | 0.71 | 3.50 | 2.59 | 0.10 | 0.17 | 0.35 | 11.28 | |||||||||||||
1964 | 0.04 | 0.26 | 0.75 | 0.90 | 2.01 | 0.32 | 0.61 | 1.75 | 1.23 | 0.00 | 0.34 | 0.11 | 8.32 | |||||||||||||
1965 | 0.19 | 0.40 | 0.72 | 0.47 | 1.20 | 5.52 | 2.04 | 3.99 | 3.30 | 1.81 | 0.06 | 0.63 | 20.33 | |||||||||||||
1966 | 0.26 | 0.27 | 0.03 | 0.50 | 0.21 | 0.53 | 4.07 | 4.10 | 2.09 | 0.63 | 0.03 | 0.20 | 12.92 | |||||||||||||
1967 | 0.23 | 0.01 | 0.12 | 0.48 | 1.99 | 1.35 | 3.84 | 1.90 | 1.52 | 0.34 | 0.31 | 0.35 | 12.44 | |||||||||||||
1968 | 0.04 | 0.25 | 0.34 | 0.55 | 2.03 | 0.76 | 4.79 | 1.71 | 0.20 | 0.19 | 0.21 | 0.14 | 11.21 | |||||||||||||
1969 | 0.02 | 0.12 | 0.44 | 1.16 | 2.65 | 2.78 | 3.42 | 1.96 | 4.80 | 1.64 | 0.10 | 0.20 | 19.29 | |||||||||||||
1970 | 0.00 | 0.00 | 0.66 | 0.93 | 1.04 | 1.02 | 3.15 | 0.57 | 1.35 | 1.47 | 0.19 | 0.02 | 10.40 | |||||||||||||
1971 | 0.16 | 0.66 | 0.18 | 1.45 | 2.11 | 0.61 | 3.50 | 0.71 | 1.18 | 0.71 | 1.01 | 0.13 | 12.41 | |||||||||||||
1972 | 0.20 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.20 | k | |
1973 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.36 | 2.22 | 0.75 | 0.30 | 0.73 | 4.36 | g | |||||
1974 | 0.08 | 0.43 | 0.90 | 0.74 | 1.78 | 2.27 | 0.98 | 0.18 | 0.06 | 0.85 | 0.29 | 0.35 | 8.91 | |||||||||||||
1975 | 0.02 | a | 0.14 | 0.21 | 1.25 | 1.10 | 0.95 | 1.87 | 1.55 | 0.39 | 0.00 | 1.07 | 0.00 | 8.55 | ||||||||||||
1976 | 0.13 | 0.22 | 0.27 | 0.98 | 2.15 | 0.34 | 3.82 | 1.48 | 1.38 | 0.90 | 0.20 | 0.00 | 11.87 | |||||||||||||
1977 | 0.10 | 0.08 | 1.28 | 1.16 | 1.42 | 1.72 | 4.52 | 2.81 | 0.00 | p | 0.00 | 0.29 | 0.06 | 13.44 | a | |||||||||||
1978 | 0.25 | 0.54 | 0.09 | 0.21 | 3.30 | 1.76 | 1.53 | 2.71 | 0.16 | 0.30 | 0.49 | 0.16 | 11.50 | |||||||||||||
1979 | 0.62 | 0.17 | 1.40 | 0.73 | 2.48 | 2.01 | 4.21 | 3.03 | 0.29 | 0.77 | 0.36 | 0.99 | 17.06 | |||||||||||||
1980 | 0.69 | 0.25 | 1.55 | 3.71 | 3.33 | 1.30 | 0.32 | 2.53 | 2.01 | 0.50 | 0.14 | 0.00 | 16.33 | |||||||||||||
1981 | 0.01 | 0.20 | 1.73 | 0.12 | 5.17 | 0.24 | 2.16 | 2.01 | 0.43 | 0.23 | 0.18 | 0.27 | 12.75 | |||||||||||||
1982 | 0.04 | 0.95 | 0.31 | 0.47 | 3.11 | 5.20 | 3.18 | 0.13 | 1.84 | 0.55 | 0.03 | a | 0.86 | 16.67 | ||||||||||||
1983 | 0.19 | 0.54 | 1.74 | 2.36 | 2.38 | 1.43 | 0.34 | 1.32 | a | 0.43 | 0.18 | 0.85 | 0.44 | 12.20 | ||||||||||||
1984 | 0.40 | 0.97 | 1.83 | 3.06 | 1.17 | 0.41 | 2.36 | 1.49 | 0.52 | 1.86 | 0.00 | 0.33 | 14.40 | |||||||||||||
1985 | 0.91 | 0.65 | 0.47 | 1.70 | 2.43 | 0.45 | 4.38 | 0.72 | 0.62 | 1.58 | 0.91 | 0.38 | 15.20 | |||||||||||||
1986 | 0.06 | 0.09 | 0.19 | 0.45 | 0.44 | 2.40 | 1.65 | 2.04 | 1.86 | 1.64 | 0.28 | 0.27 | 11.37 | |||||||||||||
1987 | 0.21 | 1.38 | 1.09 | 0.40 | 4.08 | 0.40 | 2.95 | 3.33 | 1.46 | 0.07 | 0.40 | 0.65 | 16.42 | |||||||||||||
1988 | 0.54 | 0.43 | 0.52 | 1.60 | 1.45 | 2.01 | 1.07 | 2.75 | 1.13 | 0.08 | 0.14 | 0.57 | 12.29 | |||||||||||||
1989 | 0.12 | 0.18 | 0.20 | 0.32 | 3.71 | 3.58 | 1.43 | 5.40 | 1.41 | 0.13 | 0.00 | 0.31 | 16.79 | |||||||||||||
1990 | 1.00 | 0.91 | a | 1.22 | 1.10 | ----- | z | 1.12 | 4.66 | 0.99 | 4.62 | 0.76 | 1.12 | 0.20 | 17.70 | a | ||||||||||
1991 | 0.39 | 0.04 | 1.63 | 0.50 | 1.53 | 2.97 | 5.11 | 5.27 | 0.94 | 0.63 | 1.70 | 0.57 | 21.28 | |||||||||||||
1992 | 0.37 | 0.25 | 1.05 | 0.35 | 0.51 | 5.01 | 3.08 | 2.05 | 0.00 | 0.23 | 1.28 | 0.11 | 14.29 | |||||||||||||
1993 | 0.41 | 0.84 | 1.28 | 2.12 | 1.97 | 0.90 | 0.57 | 5.57 | 1.18 | 1.55 | 0.95 | 0.00 | 17.34 | |||||||||||||
1994 | 0.61 | 0.06 | 0.75 | 3.10 | 1.92 | 1.05 | 1.94 | 3.27 | 0.73 | 1.77 | 1.17 | 0.19 | 16.56 | |||||||||||||
1995 | 0.53 | 0.29 | 1.36 | 2.89 | 5.58 | 4.63 | 1.82 | 1.07 | 1.02 | 0.03 | 0.01 | 0.01 | 19.24 | |||||||||||||
1996 | 0.08 | 0.05 | 1.66 | 0.87 | 2.27 | 2.22 | 3.48 | 2.31 | 1.67 | 0.31 | 0.11 | 0.31 | 15.34 | |||||||||||||
1997 | 0.17 | 1.04 | 0.34 | 1.49 | 1.11 | 2.58 | 1.76 | 7.10 | 0.32 | 2.80 | 0.66 | 0.75 | 20.12 | |||||||||||||
1998 | 0.04 | 0.27 | 1.08 | 0.49 | 0.97 | 1.68 | 7.78 | 2.22 | 0.37 | 0.96 | 0.94 | 0.31 | 17.11 | |||||||||||||
1999 | 0.38 | 0.11 | 0.45 | 3.96 | 4.05 | 1.37 | 2.25 | 3.22 | 0.43 | 0.24 | 0.05 | 0.06 | 16.57 | |||||||||||||
2000 | 0.19 | 0.29 | 2.18 | 1.33 | 0.27 | 0.40 | 1.03 | 0.25 | 0.55 | 1.14 | 0.21 | 0.21 | 8.05 | |||||||||||||
2001 | 0.44 | a | 0.16 | 0.40 | 0.95 | 4.38 | 0.52 | 1.79 | 0.47 | 0.89 | 0.02 | 0.40 | 0.35 | 10.77 | ||||||||||||
2002 | 0.37 | 0.04 | 0.05 | 0.16 | 0.27 | 1.97 | 1.97 | 1.43 | 0.94 | 0.82 | 0.12 | 0.25 | 8.39 | |||||||||||||
2003 | 0.19 | 0.72 | 1.31 | 0.67 | 1.47 | 3.29 | 0.42 | 1.04 | 0.53 | 0.10 | 0.20 | 0.07 | 10.01 | |||||||||||||
2004 | 0.20 | 0.27 | 0.36 | 2.74 | 0.53 | 2.79 | 2.39 | 7.37 | 1.35 | 0.31 | 0.87 | 0.12 | 19.30 | |||||||||||||
2005 | 0.55 | 0.08 | 0.59 | 1.06 | 3.14 | 1.63 | 0.93 | 2.62 | 0.74 | 3.09 | 0.01 | 0.19 | 14.63 | |||||||||||||
2006 | 0.71 | 0.00 | 0.76 | 0.17 | 1.94 | 1.41 | 4.10 | 3.45 | 2.99 | 3.16 | 0.19 | 2.33 | 21.21 | |||||||||||||
2007 | 0.40 | 0.17 | 0.73 | 2.42 | 2.50 | 0.69 | 1.68 | 4.86 | 1.09 | 0.59 | 0.08 | 0.64 | 15.85 | |||||||||||||
2008 | 0.11 | 0.40 | 0.19 | 0.62 | 1.79 | 0.92 | 4.58 | 3.55 | 0.69 | 2.76 | 0.42 | 0.26 | 16.29 | |||||||||||||
2009 | 0.03 | 0.21 | 0.85 | 1.84 | 1.07 | 1.93 | 2.38 | 1.68 | 0.70 | 1.89 | 0.62 | 0.44 | 13.64 | |||||||||||||
2010 | 0.23 | 0.49 | 2.47 | 1.37 | 0.87 | 0.92 | 5.04 | 1.13 | 0.38 | 0.05 | 0.14 | 0.27 | 13.36 | |||||||||||||
2011 | 0.14 | 0.57 | 0.46 | 0.22 | 1.56 | 0.69 | 2.74 | 2.33 | 0.51 | 0.08 | 0.49 | 0.49 | 10.28 | |||||||||||||
2012 | 0.00 | 0.31 | 0.31 | 0.94 | 0.20 | 0.37 | 1.23 | 3.14 | 1.12 | 0.39 | 0.05 | 0.02 | 8.08 | |||||||||||||
2013 | 0.02 | 0.18 | 0.30 | 0.18 | 0.35 | 0.70 | i | 2.85 | g | 1.08 | q | 1.29 | g | 0.37 | 0.08 | g | 0.00 | o | 1.40 | f | ||||||
2014 | 0.13 | 0.22 | 0.36 | 0.36 | 0.48 | 2.01 | 4.91 | 0.80 | 0.91 | k | 1.19 | 0.08 | g | 0.21 | 10.67 | b | ||||||||||
2015 | 0.26 | 0.58 | 0.26 | 1.34 | 7.41 | 1.43 | o | 0.66 | d | 1.05 | 1.51 | t | 0.87 | h | ----- | z | 0.08 | i | 11.56 | e | ||||||
2016 | ----- | z | 0.33 | 0.08 | h | 2.15 | a | 1.60 | m | 2.74 | 2.54 | g | 1.83 | 0.32 | 0.00 | 0.38 | y | 0.38 | k | 7.37 | f | |||||
2017 | 0.65 | 0.00 | u | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.65 | k | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.28 | 0.35 | 0.67 | 1.15 | 2.15 | 1.76 | 2.40 | 2.08 | 1.09 | 0.82 | 0.48 | 0.29 | 13.59 | |||||||||||||
S.D. | 0.30 | 0.39 | 0.55 | 1.01 | 1.50 | 1.29 | 1.60 | 1.48 | 1.04 | 0.91 | 0.63 | 0.33 | 3.99 | |||||||||||||
SKEW | 1.94 | 3.29 | 1.07 | 1.31 | 1.05 | 0.99 | 0.85 | 1.32 | 1.95 | 1.45 | 2.88 | 3.02 | 0.09 | |||||||||||||
MAX | 1.75 | 2.84 | 2.47 | 4.13 | 7.41 | 5.52 | 7.78 | 7.37 | 5.43 | 3.89 | 3.82 | 2.33 | 21.50 | |||||||||||||
MIN | 0.00 | 0.00 | 0.00 | 0.00 | 0.06 | 0.10 | 0.18 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 5.00 | |||||||||||||
YRS | 91 | 88 | 87 | 91 | 90 | 91 | 90 | 92 | 88 | 91 | 88 | 87 | 77 |