YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1919 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.20 | g | 1.60 | 1.14 | a | ----- | z | ----- | z | |
1920 | ----- | z | 0.19 | ----- | z | 0.60 | 1.35 | a | 2.00 | s | 1.00 | ----- | z | 0.90 | 1.10 | ----- | z | ----- | z | ----- | z | |||||
1921 | ----- | z | ----- | z | ----- | z | ----- | z | 0.30 | v | 1.20 | 1.40 | 1.29 | 1.05 | 0.40 | 0.40 | 0.25 | ----- | z | |||||||
1922 | 0.60 | 0.44 | 0.40 | 0.40 | 1.24 | 1.34 | 1.30 | 0.48 | 1.40 | 0.33 | 0.66 | 0.10 | 1.40 | |||||||||||||
1923 | 0.65 | ----- | z | 0.30 | 0.60 | 1.10 | 1.62 | 2.65 | 0.27 | 0.75 | 0.24 | 0.12 | 0.28 | ----- | z | |||||||||||
1924 | ----- | z | 0.20 | 0.44 | 0.93 | 0.95 | 0.85 | 1.20 | 1.20 | 1.60 | 0.80 | 0.30 | 0.40 | ----- | z | |||||||||||
1925 | 0.36 | 0.30 | 0.60 | 0.80 | 0.80 | 0.65 | 2.80 | 0.50 | 0.60 | 0.23 | 0.25 | ----- | z | ----- | z | |||||||||||
1926 | 0.40 | 0.60 | 1.00 | 0.30 | 0.55 | 1.50 | 0.70 | 1.25 | 1.30 | 1.55 | 0.55 | 0.80 | 1.55 | |||||||||||||
1927 | 0.20 | 0.50 | 0.50 | 1.00 | 1.67 | 1.90 | 1.45 | 1.05 | 1.35 | 0.45 | 0.80 | 0.60 | 1.90 | |||||||||||||
1928 | 0.30 | 0.50 | 0.50 | 1.20 | 1.82 | 1.84 | 2.22 | 2.60 | 1.50 | 1.65 | 0.42 | 0.40 | 2.60 | |||||||||||||
1929 | 0.75 | 0.30 | 0.55 | 0.12 | 0.30 | 0.80 | a | 1.08 | 0.86 | 2.20 | 0.70 | 0.26 | 0.24 | 2.20 | a | |||||||||||
1930 | 0.70 | 0.50 | 0.20 | 0.53 | 0.55 | r | 1.35 | 0.95 | 0.40 | 1.68 | 0.80 | 0.66 | w | 0.15 | ----- | z | ||||||||||
1931 | 0.08 | 0.49 | 0.50 | 0.42 | 0.55 | x | 2.45 | 0.91 | 0.90 | 0.93 | 1.35 | 0.93 | 0.45 | 2.45 | x | |||||||||||
1932 | 0.47 | 0.19 | 0.30 | 0.35 | 0.92 | 0.60 | 1.90 | 1.00 | 0.60 | 0.85 | 1.60 | 0.25 | 1.90 | |||||||||||||
1933 | 0.25 | 0.25 | 1.00 | 0.86 | 1.50 | 1.05 | 0.95 | 0.53 | 1.25 | 2.20 | 0.50 | r | 0.80 | 2.20 | r | |||||||||||
1934 | 0.60 | 0.10 | 0.60 | 0.70 | 1.45 | 1.32 | r | 1.26 | 1.12 | 2.71 | 1.63 | 1.55 | 0.33 | w | ----- | z | ||||||||||
1935 | 0.40 | 0.25 | 0.55 | a | 0.50 | 0.90 | 1.93 | 1.70 | 2.42 | 0.40 | 1.05 | 0.20 | 0.40 | s | 2.42 | t | ||||||||||
1936 | 0.40 | 1.00 | a | 0.85 | w | 0.50 | x | 2.01 | 0.80 | 0.55 | 2.55 | s | 2.20 | 0.67 | a | 0.03 | y | 0.50 | ----- | z | ||||||
1937 | 0.50 | 0.50 | 0.40 | 0.64 | 2.25 | 0.65 | 1.75 | 1.40 | 0.85 | 0.92 | 0.62 | 0.25 | 2.25 | |||||||||||||
1938 | 0.40 | 0.30 | 0.45 | 1.15 | 1.35 | 0.50 | 1.28 | 0.84 | 2.60 | 0.25 | 0.45 | c | 0.40 | x | ----- | z | ||||||||||
1939 | 0.25 | 1.00 | 0.30 | 0.55 | 1.25 | 1.65 | 0.65 | 1.45 | 0.43 | 1.20 | 0.00 | 0.25 | 1.65 | |||||||||||||
1940 | 0.25 | 1.02 | 1.20 | 0.65 | 2.50 | 0.65 | 0.55 | 1.55 | 0.40 | 1.10 | 0.60 | 0.60 | 2.50 | |||||||||||||
1941 | 0.60 | 0.55 | 0.70 | 0.78 | 1.22 | 2.00 | 0.73 | 3.00 | 2.00 | 1.00 | ----- | z | ----- | z | ----- | z | ||||||||||
1942 | ----- | z | 0.00 | a | 0.70 | r | 0.65 | 1.09 | 1.94 | 0.75 | 2.30 | 2.65 | 0.51 | 0.34 | 0.20 | ----- | z | |||||||||
1943 | 0.32 | 0.33 | 0.50 | 0.32 | 1.40 | 2.35 | 0.57 | 2.00 | 1.30 | 0.85 | 0.60 | 0.12 | 2.35 | |||||||||||||
1944 | 0.67 | 0.50 | 0.31 | 1.10 | 1.16 | 1.10 | o | 1.05 | 2.40 | 0.78 | 0.30 | 0.52 | 0.40 | 2.40 | o | |||||||||||
1945 | 0.30 | 0.54 | 0.86 | 0.57 | r | 0.58 | 2.07 | 1.00 | 2.61 | 0.93 | 0.12 | 0.53 | 0.37 | s | ----- | z | ||||||||||
1946 | ----- | z | 0.67 | 0.19 | 0.65 | a | 1.18 | 4.25 | n | 1.05 | ----- | z | 1.55 | 0.99 | 0.45 | w | 0.56 | ----- | z | |||||||
1947 | 0.16 | 0.09 | 0.27 | 0.60 | 0.72 | 0.46 | 0.27 | 1.40 | 1.32 | 0.31 | 1.01 | 0.04 | 1.40 | |||||||||||||
1948 | 0.16 | 0.95 | x | 1.76 | 0.81 | u | ----- | z | 0.66 | 2.25 | 1.40 | 0.28 | 0.25 | 1.69 | 0.79 | a | ----- | z | ||||||||
1949 | 0.78 | 0.10 | 1.15 | 0.35 | 2.20 | 2.05 | 1.81 | 0.61 | 0.58 | 0.53 | 0.53 | 0.81 | 2.20 | |||||||||||||
1950 | 0.68 | d | 0.20 | c | 0.82 | 1.70 | 2.25 | 0.76 | ----- | z | 0.58 | 1.13 | 1.83 | 1.37 | b | 0.63 | d | ----- | z | |||||||
1951 | 0.40 | d | 0.26 | d | 0.83 | a | 1.05 | a | 0.50 | 1.65 | 2.27 | 1.32 | 1.15 | 1.03 | 1.50 | 0.93 | 2.27 | j | ||||||||
1952 | 0.52 | 0.30 | 0.60 | 0.98 | 0.57 | 2.19 | 2.60 | 1.43 | 0.53 | 0.18 | 0.88 | 0.08 | a | 2.60 | a | |||||||||||
1953 | 1.05 | 0.65 | 0.55 | 1.37 | 3.08 | 1.34 | 0.65 | 5.18 | 0.68 | 0.08 | 1.73 | 0.80 | 5.18 | |||||||||||||
1954 | 0.18 | 0.20 | 0.45 | 3.07 | 0.86 | 1.93 | 1.70 | 1.34 | 0.76 | 0.52 | 0.37 | 0.08 | 3.07 | |||||||||||||
1955 | 0.22 | 0.35 | 0.37 | 0.93 | 0.56 | 0.75 | 2.05 | 2.83 | 1.82 | 0.58 | 0.95 | 0.40 | 2.83 | |||||||||||||
1956 | 0.21 | 0.11 | 0.87 | 0.46 | 1.40 | 3.80 | 1.17 | 1.46 | 0.87 | 1.32 | 1.20 | 0.11 | 3.80 | |||||||||||||
1957 | 0.06 | 0.30 | 0.74 | 0.66 | 1.76 | 2.65 | 2.55 | 1.53 | 0.58 | 0.38 | 0.90 | 0.09 | 2.65 | |||||||||||||
1958 | 0.21 | 0.06 | 0.35 | 1.20 | 0.50 | 1.52 | 1.72 | 1.53 | 1.80 | 0.40 | 0.54 | 0.10 | 1.80 | |||||||||||||
1959 | 0.20 | 0.20 | 0.12 | 0.39 | 1.30 | 1.05 | 1.03 | 2.70 | 0.74 | 0.53 | 0.16 | 1.07 | 2.70 | |||||||||||||
1960 | 0.47 | 0.16 | 0.23 | 0.69 | 1.53 | 1.87 | 0.44 | 2.07 | 0.65 | 0.47 | 1.07 | 0.50 | 2.07 | |||||||||||||
1961 | 0.07 | 0.24 | 1.38 | 1.10 | 1.57 | 0.78 | 0.42 | 0.67 | 0.61 | 0.68 | 1.06 | 0.30 | 1.57 | |||||||||||||
1962 | 0.20 | 0.54 | 0.95 | 0.35 | 2.00 | 0.66 | 1.67 | 0.81 | 1.22 | 0.36 | 0.13 | 0.16 | 2.00 | |||||||||||||
1963 | 0.10 | a | 0.16 | 0.37 | 0.55 | 0.79 | 1.08 | 1.26 | 2.61 | 1.22 | 0.29 | 0.77 | 0.20 | 2.61 | a | |||||||||||
1964 | 0.14 | 0.09 | 0.53 | 0.99 | 2.17 | 0.59 | 0.87 | 2.11 | 1.58 | 0.23 | 0.41 | 0.64 | 2.17 | |||||||||||||
1965 | 0.10 | 0.95 | 0.64 | 0.67 | 1.03 | 0.50 | 1.49 | 0.51 | 1.33 | 0.65 | 0.95 | 1.10 | 1.49 | |||||||||||||
1966 | 0.28 | 0.60 | 0.94 | 0.30 | 0.31 | 1.00 | 0.79 | 1.74 | 0.23 | 0.88 | 0.13 | 0.20 | 1.74 | |||||||||||||
1967 | 0.82 | 0.20 | 0.45 | 0.50 | 0.50 | 1.60 | 1.07 | 1.62 | 0.42 | 0.62 | 0.08 | 0.82 | 1.62 | |||||||||||||
1968 | 0.21 | 0.14 | 0.60 | b | 0.83 | 0.90 | 3.23 | 2.47 | 0.67 | 2.21 | 1.22 | 0.28 | 1.84 | 3.23 | b | |||||||||||
1969 | 1.02 | 0.05 | 0.34 | 1.46 | 0.16 | 0.90 | 0.66 | 0.98 | 1.39 | 0.88 | 0.80 | 0.78 | 1.46 | |||||||||||||
1970 | 0.10 | 0.08 | 0.86 | 1.89 | 0.66 | 1.22 | 1.30 | 2.34 | 0.68 | 2.09 | 1.05 | 0.44 | 2.34 | |||||||||||||
1971 | 0.35 | 0.79 | 0.50 | 0.72 | 1.02 | 0.65 | 0.77 | 1.56 | 0.96 | 1.13 | 1.23 | 0.24 | 1.56 | |||||||||||||
1972 | 0.65 | 0.21 | 0.54 | 0.77 | 1.09 | 3.95 | 3.50 | 1.27 | 0.80 | 1.12 | 0.89 | 0.72 | 3.95 | |||||||||||||
1973 | 0.55 | 0.31 | 1.08 | 0.43 | 1.48 | 0.90 | 1.17 | 2.68 | 0.59 | 1.39 | 1.53 | 0.23 | 2.68 | |||||||||||||
1974 | 0.34 | 0.25 | 0.41 | 0.68 | 0.81 | 1.89 | 0.76 | 1.42 | 1.07 | 0.42 | 1.75 | 0.18 | 1.89 | |||||||||||||
1975 | 1.20 | 0.22 | 1.15 | 0.79 | 0.60 | 1.49 | 0.25 | 0.55 | 0.78 | 0.75 | 1.51 | 0.34 | 1.51 | |||||||||||||
1976 | 0.52 | 0.89 | 0.73 | 0.45 | 0.22 | 1.10 | 1.95 | 0.95 | 0.25 | 0.38 | 0.30 | 0.15 | 1.95 | |||||||||||||
1977 | 0.17 | 0.38 | 1.47 | 0.75 | 1.00 | 0.98 | 2.63 | 2.14 | 1.01 | 1.00 | 0.25 | 0.60 | 2.63 | |||||||||||||
1978 | 0.15 | 0.09 | 0.80 | 1.30 | 1.46 | 0.79 | 2.32 | 3.20 | 3.23 | 0.18 | 0.45 | 0.28 | 3.23 | |||||||||||||
1979 | 0.44 | 0.62 | 0.62 | 0.53 | 1.65 | 1.65 | 1.28 | 0.83 | 0.51 | 1.05 | 0.55 | 0.15 | 1.65 | |||||||||||||
1980 | 0.33 | ----- | z | 0.29 | 0.24 | 0.78 | 0.89 | 1.50 | 0.98 | 0.88 | 0.53 | 0.15 | 0.12 | ----- | z | |||||||||||
1981 | 0.03 | 1.00 | 0.43 | 1.57 | 0.54 | 2.75 | 0.96 | 1.05 | 0.36 | 0.85 | 0.15 | 0.59 | 2.75 | |||||||||||||
1982 | 0.38 | 0.12 | 0.60 | 0.35 | 4.15 | 0.45 | 1.76 | 1.30 | 0.70 | 1.22 | 0.59 | 0.90 | 4.15 | |||||||||||||
1983 | 0.52 | 0.13 | 0.33 | 0.65 | 0.90 | 0.67 | 1.60 | 3.13 | 1.34 | 1.48 | 1.22 | 0.40 | 3.13 | |||||||||||||
1984 | 0.18 | 0.76 | 0.20 | 1.79 | 2.41 | 1.79 | 2.16 | 1.12 | 1.62 | 0.92 | 0.40 | 0.93 | 2.41 | |||||||||||||
1985 | 0.05 | 0.19 | 1.02 | 0.70 | 0.86 | 4.55 | 1.16 | 1.70 | 2.33 | 0.98 | 0.45 | 0.43 | 4.55 | |||||||||||||
1986 | 0.25 | 0.50 | 0.40 | 1.58 | 1.90 | 0.79 | 1.96 | 1.36 | 0.80 | 0.64 | 0.34 | 0.80 | 1.96 | |||||||||||||
1987 | 0.37 | 0.08 | 0.39 | 0.17 | 0.85 | 0.42 | 1.41 | 0.64 | 0.59 | 0.22 | 1.05 | 0.50 | 1.41 | |||||||||||||
1988 | 0.24 | b | 0.04 | 0.78 | 0.45 | 1.27 | 0.51 | 0.60 | 1.31 | 1.42 | 0.23 | 0.95 | 0.23 | 1.42 | b | |||||||||||
1989 | 0.90 | 0.16 | 0.63 | 0.47 | 2.20 | 0.67 | 0.75 | 1.77 | 1.00 | 0.64 | 0.38 | 0.21 | 2.20 | |||||||||||||
1990 | 0.08 | 0.37 | 0.73 | 0.78 | 0.57 | 0.81 | 1.03 | 2.16 | 1.74 | 0.90 | 0.43 | 0.37 | 2.16 | |||||||||||||
1991 | 0.32 | 0.37 | 1.01 | 0.86 | 1.44 | 1.28 | 1.56 | 0.75 | a | 1.02 | d | 0.33 | 1.90 | d | 0.05 | e | 1.90 | n | ||||||||
1992 | 0.31 | 0.13 | 0.42 | 0.76 | 0.32 | 1.37 | 2.63 | 1.19 | 0.64 | 0.63 | 0.54 | 0.16 | e | 2.63 | e | |||||||||||
1993 | 0.31 | 0.06 | 0.24 | 0.58 | 1.20 | 0.81 | 0.90 | 0.44 | 0.87 | 0.35 | 1.12 | 0.18 | 1.20 | |||||||||||||
1994 | 0.15 | 0.18 | 0.42 | 0.72 | 0.40 | 1.66 | 1.32 | 0.77 | 3.55 | 0.64 | 0.65 | 0.16 | 3.55 | |||||||||||||
1995 | 0.16 | 0.44 | 0.64 | 0.62 | 1.14 | 1.00 | 1.59 | 2.53 | 0.88 | 1.32 | 0.22 | 0.49 | 2.53 | |||||||||||||
1996 | 1.16 | 0.18 | 0.68 | 0.51 | 1.16 | 3.72 | 1.80 | 0.57 | 1.04 | 0.96 | 1.31 | 0.55 | 3.72 | |||||||||||||
1997 | 0.55 | 0.04 | 0.42 | 0.33 | 0.44 | 0.92 | 1.83 | 0.65 | 2.92 | 1.06 | 0.43 | 0.11 | 2.92 | |||||||||||||
1998 | 0.23 | 1.04 | 0.90 | 0.76 | 0.84 | 0.83 | 1.90 | 0.87 | 0.65 | 0.86 | 0.87 | 0.65 | 1.90 | |||||||||||||
1999 | 0.21 | 0.14 | 0.75 | 1.25 | 1.18 | 1.66 | 1.37 | 1.92 | 1.89 | h | 0.65 | 0.36 | 0.05 | 1.92 | h | |||||||||||
2000 | 0.14 | 0.32 | a | 0.85 | 0.61 | 0.74 | 0.40 | 4.78 | 2.02 | 0.25 | 0.49 | 1.18 | 0.25 | 4.78 | a | |||||||||||
2001 | 0.32 | 0.56 | 0.23 | 2.34 | 1.04 | 1.10 | 0.60 | 1.10 | 0.44 | 0.44 | 0.63 | 0.17 | 2.34 | |||||||||||||
2002 | 0.06 | 0.48 | 0.64 | 1.58 | 1.10 | 0.75 | 3.93 | 1.96 | 3.87 | 1.57 | 0.20 | 0.41 | 3.93 | |||||||||||||
2003 | 0.08 | 0.30 | r | 0.40 | v | 0.87 | 1.48 | 1.28 | 1.13 | 0.78 | 1.22 | 0.60 | 0.27 | 0.45 | ----- | z | ||||||||||
2004 | 0.12 | 0.32 | 0.26 | 1.48 | 1.44 | 0.81 | 0.86 | 1.03 | 1.08 | 1.46 | 0.37 | 0.36 | 1.48 | |||||||||||||
2005 | 0.40 | 0.43 | 0.97 | 1.55 | 0.65 | 0.80 | 0.73 | 0.40 | 3.38 | 4.86 | 0.78 | 0.30 | 4.86 | |||||||||||||
2006 | 0.23 | 0.30 | 0.26 | 0.45 | 1.84 | 0.39 | 0.72 | 1.40 | 0.45 | 0.45 | 0.95 | 0.78 | 1.84 | |||||||||||||
2007 | 0.42 | 0.22 | 0.97 | 1.16 | 0.37 | 0.46 | 1.64 | 0.95 | 1.55 | 1.32 | 0.10 | 0.38 | 1.64 | |||||||||||||
2008 | 0.08 | 0.23 | 0.17 | 1.53 | 1.24 | 1.63 | 1.11 | 0.58 | 1.00 | 1.49 | 0.28 | 0.40 | 1.63 | |||||||||||||
2009 | 0.28 | 0.27 | 0.44 | 0.44 | 0.41 | 0.43 | 1.13 | 1.97 | 0.16 | 1.60 | 0.21 | 0.40 | 1.97 | |||||||||||||
2010 | 0.32 | 0.05 | 0.51 | 0.38 | 0.98 | 1.05 | ----- | z | 1.56 | 3.61 | 1.58 | 1.46 | b | 0.93 | a | ----- | z | |||||||||
2011 | 0.20 | a | 0.46 | b | 0.92 | i | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2012 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2013 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2014 | ----- | z | ----- | z | ----- | z | ----- | z | 0.73 | y | 0.53 | c | 0.57 | a | 0.26 | f | 1.65 | b | 0.99 | c | 0.00 | i | 0.00 | n | ----- | z |
2015 | 0.00 | o | 0.00 | i | 0.00 | n | 0.00 | l | 0.82 | d | 0.80 | c | 0.26 | k | 3.87 | c | 1.59 | b | 1.24 | f | 0.91 | i | 0.18 | i | ----- | z |
2016 | 0.00 | r | ----- | z | 0.30 | n | 1.09 | c | 1.22 | c | 1.31 | c | 7.27 | 1.49 | 1.76 | a | 0.98 | a | 0.44 | d | 0.00 | r | ----- | z | ||
2017 | 0.00 | n | 0.00 | j | 0.16 | d | 0.52 | 1.26 | a | 0.51 | e | 0.66 | d | 1.12 | b | 0.93 | 2.94 | f | 0.01 | n | 0.00 | u | ----- | z | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.36 | 0.35 | 0.60 | 0.83 | 1.18 | 1.31 | 1.47 | 1.47 | 1.24 | 0.87 | 0.70 | 0.43 | 2.44 | |||||||||||||
S.D. | 0.26 | 0.26 | 0.32 | 0.50 | 0.66 | 0.84 | 1.00 | 0.85 | 0.81 | 0.63 | 0.47 | 0.31 | 0.95 | |||||||||||||
SKEW | 1.26 | 1.08 | 1.00 | 1.68 | 1.41 | 1.65 | 2.76 | 1.37 | 1.36 | 2.87 | 0.69 | 1.43 | 1.13 | |||||||||||||
MAX | 1.20 | 1.04 | 1.76 | 3.07 | 4.15 | 4.55 | 7.27 | 5.18 | 3.87 | 4.86 | 1.90 | 1.84 | 5.18 | |||||||||||||
MIN | 0.03 | 0.00 | 0.12 | 0.12 | 0.16 | 0.39 | 0.25 | 0.27 | 0.16 | 0.08 | 0.00 | 0.04 | 1.20 | |||||||||||||
YRS | 87 | 87 | 87 | 89 | 90 | 91 | 92 | 91 | 94 | 94 | 87 | 84 | 65 |