YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1920 | 0.17 | 0.75 | 0.68 | 1.15 | ----- | z | 0.12 | 0.03 | 0.07 | 0.11 | 0.72 | 3.32 | 1.45 | ----- | z | |||||||||||
1921 | 1.75 | 0.75 | 0.48 | 0.18 | 0.32 | ----- | z | ----- | z | ----- | z | 0.08 | 0.34 | 0.77 | 1.41 | ----- | z | |||||||||
1922 | 0.61 | 1.93 | 0.50 | 0.18 | 0.18 | 0.27 | ----- | z | 0.00 | ----- | z | 0.71 | 2.57 | 2.25 | ----- | z | ||||||||||
1923 | 0.83 | 0.70 | 0.15 | 1.81 | 0.09 | 0.01 | ----- | z | ----- | z | 0.68 | 0.29 | 0.29 | 0.98 | ----- | z | ||||||||||
1924 | 1.36 | 1.59 | 0.20 | x | 0.07 | 0.55 | ----- | z | ----- | z | ----- | z | ----- | z | 1.40 | 0.68 | 2.06 | ----- | z | |||||||
1925 | 1.07 | 1.59 | 2.56 | 1.13 | 1.00 | ----- | z | ----- | z | 0.02 | 0.57 | ----- | z | 0.58 | 1.08 | ----- | z | |||||||||
1926 | 2.22 | 1.73 | 0.09 | 2.07 | 0.11 | ----- | z | ----- | z | ----- | z | 0.10 | 0.94 | 1.91 | 3.22 | ----- | z | |||||||||
1927 | 1.20 | 1.29 | 0.74 | 1.24 | 0.10 | 0.27 | 0.00 | 0.00 | 0.00 | 0.91 | 1.45 | 1.20 | 1.45 | |||||||||||||
1928 | 0.94 | 1.49 | 2.10 | 0.95 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.20 | 2.00 | 1.39 | ----- | z | |||||||
1929 | 0.37 | 0.71 | 0.78 | 0.22 | 0.00 | 0.68 | 0.00 | 0.00 | ----- | z | 0.00 | 0.00 | 1.90 | u | ----- | z | ||||||||||
1930 | 1.20 | t | 1.02 | 1.03 | 1.10 | 0.63 | 0.00 | 0.00 | ----- | z | 0.25 | 0.55 | 0.90 | 0.21 | ----- | z | ||||||||||
1931 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | ----- | z | 0.00 | 0.58 | 0.41 | 2.75 | ----- | z | |||||
1932 | 0.90 | 0.56 | 0.23 | 0.74 | 0.64 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.75 | 1.73 | 1.73 | |||||||||||||
1933 | 1.26 | 0.68 | 0.78 | 0.10 | 0.65 | 0.00 | 0.00 | 0.00 | 0.05 | 1.40 | 0.00 | 1.43 | 1.43 | |||||||||||||
1934 | 0.33 | 0.85 | 0.84 | 0.74 | 0.22 | 0.65 | ----- | z | 0.00 | 0.09 | 0.98 | 1.47 | 0.72 | ----- | z | |||||||||||
1935 | 1.79 | 1.22 | 1.27 | 1.16 | 0.00 | 0.00 | 0.00 | 0.12 | 0.11 | 0.51 | 1.64 | 1.11 | 1.79 | |||||||||||||
1936 | 1.43 | 1.88 | 0.83 | 0.93 | 0.43 | 0.81 | 0.09 | 0.00 | 0.00 | 0.29 | 0.02 | 0.79 | 1.88 | |||||||||||||
1937 | 1.92 | 2.20 | 1.17 | 0.42 | 0.00 | 1.27 | 0.12 | 0.00 | 0.00 | 1.16 | 2.11 | 5.43 | 5.43 | |||||||||||||
1938 | 1.02 | 1.59 | 1.24 | 0.89 | ----- | z | 0.00 | 0.00 | 0.00 | 0.91 | 0.88 | 0.89 | 1.57 | ----- | z | |||||||||||
1939 | 1.30 | 0.73 | 1.03 | 0.34 | 0.54 | 0.03 | 0.00 | ----- | z | 0.03 | 0.18 | 0.17 | 0.95 | ----- | z | |||||||||||
1940 | 1.50 | 3.22 | 1.63 | 0.35 | 1.02 | 0.10 | 0.00 | ----- | z | 0.47 | 1.00 | 0.62 | 2.45 | ----- | z | |||||||||||
1941 | 1.23 | j | 1.72 | 1.52 | 1.52 | 0.32 | 0.12 | 0.00 | 0.03 | 0.05 | 0.86 | 0.68 | 2.00 | 2.00 | j | |||||||||||
1942 | 1.33 | 2.36 | 1.29 | 1.37 | 0.55 | 0.00 | 0.00 | 0.00 | 0.05 | 0.77 | 2.30 | 2.75 | 2.75 | |||||||||||||
1943 | 3.77 | e | 0.55 | 0.50 | 1.47 | 0.05 | 0.00 | 0.00 | 0.00 | 0.00 | 0.49 | 0.37 | 1.30 | 3.77 | e | |||||||||||
1944 | 1.32 | 1.25 | 2.32 | 1.60 | 0.48 | 0.36 | a | 0.00 | 0.00 | 0.00 | 1.42 | 0.82 | 0.82 | 2.32 | a | |||||||||||
1945 | 2.11 | 1.45 | 1.11 | 0.60 | 0.52 | 0.00 | 0.00 | 0.00 | 0.00 | 2.08 | 0.75 | 2.00 | 2.11 | |||||||||||||
1946 | 0.95 | 0.64 | 0.46 | 0.33 | 0.10 | a | 0.00 | a | 0.44 | 0.00 | 0.10 | 0.62 | 1.65 | 1.85 | 1.85 | b | ||||||||||
1947 | 0.56 | 1.75 | 1.30 | 0.33 | 0.33 | 0.48 | 0.00 | 0.00 | 0.00 | 1.18 | 0.45 | 0.87 | 1.75 | |||||||||||||
1948 | 0.81 | 1.07 | 1.64 | 1.59 | 0.59 | 0.57 | 0.00 | 0.00 | 0.10 | 0.32 | 0.46 | 1.03 | 1.64 | |||||||||||||
1949 | 0.81 | 0.94 | 1.50 | 0.03 | 0.08 | 0.01 | 0.11 | 0.00 | 0.13 | 0.13 | 0.92 | 0.45 | 1.50 | |||||||||||||
1950 | 1.82 | 1.23 | 0.78 | 0.84 | 0.55 | 0.07 | 0.00 | 0.00 | 0.04 | 1.48 | 2.22 | 3.80 | 3.80 | |||||||||||||
1951 | 2.53 | a | 1.39 | 0.35 | 0.88 | 1.89 | 0.00 | 0.00 | 0.00 | 0.00 | 0.95 | 1.75 | 1.88 | 2.53 | a | |||||||||||
1952 | 1.55 | 0.81 | 1.00 | 0.15 | 0.20 | 0.60 | 0.00 | 0.00 | 0.00 | 0.25 | 1.13 | 3.18 | 3.18 | |||||||||||||
1953 | 1.39 | 0.24 | 1.21 | 1.50 | a | 0.43 | 0.64 | 0.00 | 0.50 | 0.00 | 0.67 | 2.20 | 0.71 | 2.20 | a | |||||||||||
1954 | 2.92 | 1.08 | 0.76 | 0.70 | 0.00 | 0.49 | 0.00 | 0.67 | 0.06 | 0.35 | 1.73 | i | 1.43 | 2.92 | i | |||||||||||
1955 | 0.99 | 0.79 | 0.36 | 1.00 | 0.00 | 0.10 | 0.00 | 0.00 | 0.30 | 0.16 | 0.66 | 3.80 | 3.80 | |||||||||||||
1956 | 2.20 | 1.77 | 0.11 | 0.69 | 0.37 | 0.11 | 0.04 | 0.00 | 0.15 | 1.72 | ----- | z | 0.18 | ----- | z | |||||||||||
1957 | 1.98 | 1.72 | 0.60 | 1.08 | 0.58 | 0.00 | ----- | z | 0.00 | 1.84 | 2.37 | 0.44 | 1.13 | ----- | z | |||||||||||
1958 | 2.02 | 2.73 | 1.63 | 1.29 | 0.62 | 0.54 | 0.28 | 0.00 | 0.01 | 0.21 | 0.55 | 0.63 | 2.73 | |||||||||||||
1959 | ----- | z | 1.75 | 0.42 | 0.92 | 0.03 | 0.00 | 0.00 | 0.00 | 1.22 | 0.01 | 0.01 | 0.98 | ----- | z | |||||||||||
1960 | 1.16 | 3.73 | 1.22 | 0.52 | 0.90 | 0.00 | 0.00 | 0.00 | 0.00 | 0.34 | 0.80 | 2.83 | 3.73 | |||||||||||||
1961 | 1.11 | 1.13 | 0.73 | 0.64 | 0.25 | 0.00 | 0.00 | 0.00 | 0.04 | 0.16 | 1.10 | 2.48 | 2.48 | |||||||||||||
1962 | 0.59 | 1.37 | 1.24 | 0.37 | 0.06 | 0.00 | 0.00 | 0.08 | 0.24 | 4.62 | 1.49 | 0.88 | 4.62 | |||||||||||||
1963 | 2.71 | 0.90 | 1.71 | 0.93 | 0.60 | 0.00 | 0.00 | 0.03 | 0.00 | 0.92 | 1.64 | 0.40 | 2.71 | |||||||||||||
1964 | 1.59 | 0.13 | 0.60 | 0.24 | 0.22 | 0.22 | 0.08 | 0.00 | 0.03 | 1.02 | 2.13 | 4.36 | 4.36 | |||||||||||||
1965 | 2.37 | 0.71 | 0.51 | 1.16 | 0.00 | 0.00 | 0.05 | 0.43 | 0.00 | 0.03 | 2.14 | 1.24 | 2.37 | |||||||||||||
1966 | 2.48 | 1.02 | 0.39 | 0.34 | 0.08 | 0.08 | 0.00 | 0.29 | 0.07 | 0.01 | 1.66 | 1.32 | 2.48 | |||||||||||||
1967 | 2.96 | 0.26 | 1.08 | 0.46 | 0.18 | 1.82 | 0.00 | 0.03 | 0.03 | 0.93 | 1.01 | 1.57 | 2.96 | |||||||||||||
1968 | 3.15 | 1.46 | 1.04 | 0.67 | 0.27 | 0.00 | 0.00 | 0.91 | 0.06 | 0.40 | 1.00 | 1.88 | 3.15 | |||||||||||||
1969 | 1.76 | 1.22 | 0.50 | 0.60 | 0.07 | 0.20 | 0.00 | 0.00 | 0.00 | 2.10 | 0.63 | 2.23 | 2.23 | |||||||||||||
1970 | 2.27 | 1.48 | 0.91 | 0.09 | 0.07 | 0.20 | 0.00 | 0.00 | 0.00 | 0.55 | 1.94 | 1.77 | 2.27 | |||||||||||||
1971 | 2.81 | 0.10 | 2.06 | 0.37 | 0.27 | 0.00 | 0.00 | 0.08 | 0.26 | 0.29 | 0.87 | 1.13 | 2.81 | |||||||||||||
1972 | 0.69 | 0.75 | 0.45 | 0.44 | 0.53 | 0.02 | 0.00 | 0.02 | 0.77 | 0.78 | 1.34 | 1.31 | 1.34 | |||||||||||||
1973 | 2.30 | 1.37 | 0.73 | 0.05 | 0.15 | 0.00 | 0.00 | 0.05 | 0.30 | 1.12 | 2.11 | 1.45 | 2.30 | |||||||||||||
1974 | 2.85 | 1.77 | 2.10 | 0.73 | 0.05 | 0.00 | 0.64 | 0.28 | 0.00 | 0.96 | 0.37 | 1.01 | 2.85 | |||||||||||||
1975 | 0.68 | 1.94 | 1.50 | 1.33 | 0.03 | 0.02 | 0.17 | 0.23 | 0.00 | 0.64 | 0.58 | 0.40 | 1.94 | |||||||||||||
1976 | 0.21 | 0.51 | 0.92 | 0.84 | 0.00 | 0.04 | 0.00 | 0.20 | 0.14 | 0.50 | 0.87 | 0.40 | 0.92 | |||||||||||||
1977 | 1.73 | 1.00 | 0.82 | 0.11 | 0.67 | 0.00 | 0.05 | 0.04 | 0.71 | 0.36 | 2.85 | 1.90 | 2.85 | |||||||||||||
1978 | 2.38 | 1.71 | 1.72 | 1.40 | 0.17 | 0.06 | 0.00 | 0.00 | 1.00 | 0.00 | 0.35 | 0.29 | 2.38 | |||||||||||||
1979 | 2.75 | 1.09 | 1.53 | 0.81 | 0.42 | 0.00 | 0.07 | 0.00 | 0.05 | 2.00 | 2.17 | 3.18 | 3.18 | |||||||||||||
1980 | 3.00 | 1.82 | 0.98 | 0.45 | 0.25 | 0.35 | 0.05 | 0.00 | 0.03 | 0.44 | 0.27 | 2.32 | 3.00 | |||||||||||||
1981 | 2.00 | 1.48 | 0.91 | 0.91 | 0.51 | 0.00 | 0.08 | 0.00 | 0.38 | 1.42 | 2.11 | 2.15 | 2.15 | |||||||||||||
1982 | 2.23 | a | 2.17 | 2.75 | 1.00 | 0.04 | 0.06 | 0.00 | 0.00 | 0.83 | 2.05 | a | 1.41 | 1.30 | 2.75 | b | ||||||||||
1983 | ----- | z | ----- | z | ----- | z | 1.53 | e | 0.39 | 0.00 | 0.00 | 0.00 | 0.81 | 0.44 | 2.65 | 2.19 | ----- | z | ||||||||
1984 | 0.50 | 0.94 | 0.49 | 0.36 | ----- | z | 0.23 | 0.00 | ----- | z | 0.26 | 0.89 | 1.52 | 0.56 | ----- | z | ||||||||||
1985 | 0.28 | ----- | z | 1.51 | a | 0.09 | ----- | z | 0.00 | 0.00 | ----- | z | 1.18 | ----- | z | 1.45 | 1.95 | ----- | z | |||||||
1986 | ----- | z | 3.97 | 1.36 | 0.25 | ----- | z | 0.00 | 0.00 | 0.00 | 0.36 | 0.00 | 0.05 | 1.16 | ----- | z | ||||||||||
1987 | 1.13 | 1.26 | 1.26 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | a | 0.00 | ----- | z | 1.25 | ----- | z | ----- | z | |||||||||
1988 | ----- | z | 0.66 | 0.09 | 0.55 | ----- | z | 0.16 | ----- | z | 0.00 | ----- | z | ----- | z | 2.02 | d | 0.88 | f | ----- | z | |||||
1989 | 0.41 | e | 0.25 | a | 2.21 | d | 0.42 | c | 0.12 | b | 0.52 | a | 0.00 | 0.00 | 1.68 | b | ----- | z | 0.76 | d | 0.00 | ----- | z | |||
1990 | 2.65 | d | 1.68 | c | 0.60 | b | 0.23 | a | 1.20 | c | 0.03 | 0.00 | 0.00 | 0.42 | a | 1.01 | 0.15 | c | 0.70 | b | 2.65 | s | ||||
1991 | 0.62 | a | 1.40 | a | 4.79 | d | 0.04 | a | 0.24 | b | 0.23 | b | 0.22 | 0.00 | 0.01 | 1.41 | a | 0.95 | 2.61 | a | 4.79 | m | ||||
1992 | 1.50 | a | 1.97 | f | 2.12 | e | 0.60 | a | 0.18 | 0.48 | a | 0.03 | 0.00 | 0.00 | 1.05 | b | 0.55 | a | 2.97 | d | 2.97 | u | ||||
1993 | 2.33 | f | 1.70 | b | 0.82 | b | 0.95 | c | 0.85 | e | 0.85 | a | 0.00 | 0.00 | 0.00 | 0.17 | b | 1.87 | c | 1.16 | h | ----- | z | |||
1994 | 2.46 | d | 2.19 | d | 0.27 | a | 1.00 | b | 0.51 | a | 0.16 | a | 0.00 | 0.00 | 0.15 | 0.57 | 2.12 | e | 1.70 | f | 2.46 | x | ||||
1995 | 7.82 | e | 0.06 | a | 4.56 | b | 0.47 | g | 1.37 | a | 0.15 | a | 0.13 | 0.00 | 0.00 | 0.00 | 0.03 | c | 3.92 | c | 7.82 | w | ||||
1996 | 2.18 | h | 3.02 | d | 1.47 | b | 0.77 | a | 1.03 | a | 0.93 | 0.00 | 0.00 | ----- | z | 0.35 | r | 1.33 | b | 1.97 | e | ----- | z | |||
1997 | 6.35 | c | 0.37 | d | ----- | z | 0.25 | a | 0.46 | a | 0.51 | 0.00 | 0.79 | 0.42 | a | 1.00 | 1.08 | a | 1.00 | a | ----- | z | ||||
1998 | 2.41 | d | 3.12 | 1.15 | b | 0.92 | b | 1.32 | f | 0.32 | 0.00 | 0.00 | 0.00 | 0.95 | 2.19 | e | 0.45 | c | 3.12 | v | ||||||
1999 | 1.75 | d | 2.25 | g | 1.25 | f | 0.79 | e | 0.60 | b | 0.00 | 0.00 | 0.00 | 0.00 | ----- | z | 1.70 | f | 0.39 | ----- | z | |||||
2000 | 1.94 | j | 3.34 | h | 0.92 | b | 1.65 | b | 0.63 | d | 0.32 | 0.00 | 0.00 | 0.20 | c | 0.78 | e | 0.61 | 0.48 | ----- | z | |||||
2001 | 1.07 | h | 2.51 | g | 1.72 | d | 0.20 | b | 0.00 | 0.18 | 0.00 | p | 0.00 | c | 0.32 | c | 1.05 | d | 1.96 | c | 1.62 | b | ----- | z | ||
2002 | 1.83 | f | 1.00 | d | 0.78 | d | 0.00 | o | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 1.76 | 1.35 | 1.15 | 0.73 | 0.38 | 0.22 | 0.04 | 0.07 | 0.24 | 0.80 | 1.18 | 1.62 | 2.56 | |||||||||||||
S.D. | 1.25 | 0.80 | 0.83 | 0.49 | 0.36 | 0.33 | 0.10 | 0.18 | 0.39 | 0.72 | 0.79 | 1.06 | 0.92 | |||||||||||||
SKEW | 2.28 | 1.04 | 2.09 | 0.47 | 1.51 | 2.35 | 4.06 | 3.21 | 2.25 | 2.29 | 0.42 | 1.09 | 0.96 | |||||||||||||
MAX | 7.82 | 3.97 | 4.79 | 2.07 | 1.89 | 1.82 | 0.64 | 0.91 | 1.84 | 4.62 | 3.32 | 5.43 | 5.43 | |||||||||||||
MIN | 0.17 | 0.06 | 0.09 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.92 | |||||||||||||
YRS | 71 | 76 | 78 | 80 | 73 | 76 | 71 | 71 | 76 | 75 | 79 | 77 | 42 |