YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1937 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.90 | 0.70 | 1.18 | 1.38 | ----- | z | ||||
1938 | 0.68 | 1.19 | 1.01 | 0.28 | 0.25 | 0.01 | 0.10 | 0.00 | 0.26 | 0.87 | 0.90 | 0.51 | 1.19 | |||||||||||||
1939 | 0.53 | 0.41 | 0.81 | 0.08 | 0.38 | 0.26 | 0.57 | 0.00 | 0.17 | 0.69 | 0.07 | 1.99 | 1.99 | |||||||||||||
1940 | 0.53 | 0.81 | 0.78 | 0.19 | 0.28 | 0.63 | 0.06 | 0.00 | 0.75 | 0.29 | 0.68 | 0.65 | 0.81 | |||||||||||||
1941 | 0.61 | 0.75 | 0.35 | 0.31 | 0.48 | 0.70 | 0.12 | 0.88 | 0.71 | 0.39 | 1.02 | 1.84 | 1.84 | |||||||||||||
1942 | 0.62 | 0.35 | 0.27 | 0.37 | 1.14 | 0.38 | 0.04 | 0.00 | 0.09 | 0.28 | 1.37 | 0.91 | 1.37 | |||||||||||||
1943 | 2.67 | 0.35 | 0.65 | 1.11 | 0.27 | 0.68 | 0.00 | 0.32 | 0.19 | 0.84 | 0.25 | 0.46 | 2.67 | |||||||||||||
1944 | 0.60 | 0.50 | 0.46 | 0.51 | 0.13 | 0.51 | 0.22 | 0.01 | 1.06 | 1.12 | 0.58 | 0.21 | 1.12 | |||||||||||||
1945 | 0.28 | 0.89 | 0.44 | 0.30 | 0.87 | 0.55 | 0.00 | 0.06 | 0.22 | 0.49 | 0.83 | 0.82 | 0.89 | |||||||||||||
1946 | 0.72 | 0.53 | 0.28 | 0.23 | 0.67 | 0.14 | 0.12 | 0.00 | 0.12 | 0.83 | 2.53 | 0.59 | 2.53 | |||||||||||||
1947 | 0.42 | 0.99 | 0.42 | 0.20 | 0.32 | 0.52 | 0.45 | 0.10 | 0.07 | 1.16 | 0.73 | 0.42 | 1.16 | |||||||||||||
1948 | 1.58 | 0.50 | 0.81 | 0.78 | 0.71 | 0.42 | a | 0.17 | 0.30 | 0.23 | 0.64 | 0.43 | 1.43 | 1.58 | a | |||||||||||
1949 | 0.37 | 0.57 | 0.33 | 0.03 | 0.43 | 0.59 | 0.00 | 0.01 | 0.42 | 0.80 | 1.04 | 0.27 | 1.04 | |||||||||||||
1950 | 1.73 | 0.26 | 0.46 | 0.33 | 0.27 | 0.31 | 0.00 | 0.00 | 0.13 | a | 2.94 | 1.00 | 2.05 | 2.94 | a | |||||||||||
1951 | 1.26 | 1.42 | 0.20 | 0.36 | 0.16 | 0.00 | 0.00 | 0.29 | 0.04 | 0.99 | a | 1.21 | 1.13 | 1.42 | a | |||||||||||
1952 | 0.79 | 1.23 | 0.66 | 0.18 | 0.43 | 0.89 | 0.06 | 1.59 | 0.87 | 0.07 | 0.51 | 1.34 | 1.59 | |||||||||||||
1953 | 1.80 | 0.55 | 0.54 | a | 0.09 | 1.40 | 0.38 | 0.00 | 0.16 | 1.03 | 0.70 | 2.11 | 0.70 | 2.11 | a | |||||||||||
1954 | 0.86 | 0.79 | 0.29 | 0.45 | 0.22 | 0.51 | 0.00 | 0.21 | 0.41 | 0.51 | 0.17 | 0.86 | 0.86 | |||||||||||||
1955 | 0.41 | 0.19 | 0.48 | 0.21 | 0.12 | 0.15 | 0.00 | 0.00 | 0.56 | 1.01 | 1.49 | a | 1.22 | 1.49 | a | |||||||||||
1956 | 0.94 | 2.22 | 0.47 | 0.32 | 0.64 | 0.59 | 0.18 | 0.18 | 1.07 | 1.85 | 0.37 | 0.98 | 2.22 | |||||||||||||
1957 | 0.72 | 1.43 | 1.13 | 0.18 | a | 0.65 | 0.01 | 0.07 | 0.00 | 0.70 | 0.34 | 0.93 | 0.94 | 1.43 | a | |||||||||||
1958 | 1.59 | 1.61 | 0.33 | 0.20 | 0.36 | 0.92 | 0.73 | 0.22 | 0.43 | 0.40 | 0.87 | 0.56 | 1.61 | |||||||||||||
1959 | 0.70 | 0.95 | 0.37 | 0.30 | 0.41 | 0.25 | 0.00 | 0.32 | 0.25 | 0.23 | 0.07 | 0.67 | 0.95 | |||||||||||||
1960 | 0.97 | 1.25 | 0.89 | 0.36 | 0.40 | 0.00 | 1.11 | 0.07 | 0.04 | 0.33 | 1.71 | 1.04 | 1.71 | |||||||||||||
1961 | 0.58 | 0.68 | 0.46 | 0.48 | 0.39 | 0.13 | 0.08 | 0.16 | 0.72 | 1.52 | 1.10 | 0.70 | 1.52 | |||||||||||||
1962 | 0.60 | 0.22 | 0.57 | 0.45 | 0.45 | 0.44 | 0.00 | 0.65 | 0.67 | 2.47 | 1.28 | 3.33 | 3.33 | |||||||||||||
1963 | 0.46 | 0.87 | 0.30 | 0.30 | 0.77 | 0.63 | 0.04 | 0.02 | 0.47 | 0.68 | 1.30 | 0.41 | 1.30 | |||||||||||||
1964 | 1.58 | 0.13 | 0.58 | 0.32 | 0.46 | 0.37 | 0.67 | 0.12 | 0.16 | 0.35 | 0.46 | 2.29 | 2.29 | |||||||||||||
1965 | 0.76 | 0.93 | 0.06 | 0.94 | 0.31 | 0.48 | 0.18 | 0.51 | 0.00 | 0.15 | 0.47 | 0.92 | 0.94 | |||||||||||||
1966 | 2.09 | 0.11 | 0.42 | 0.20 | 0.00 | 0.30 | 0.46 | 0.19 | 1.21 | 0.31 | 1.13 | 0.90 | 2.09 | |||||||||||||
1967 | 0.91 | 0.38 | 0.78 | 0.63 | 0.22 | 0.24 | 0.00 | 0.00 | 0.22 | 1.06 | 0.50 | 1.08 | 1.08 | |||||||||||||
1968 | 0.26 | 0.80 | 0.27 | 0.42 | 0.26 | 0.10 | 0.00 | 0.42 | 0.17 | 0.28 | 0.42 | 0.85 | 0.85 | |||||||||||||
1969 | 0.96 | 0.56 | 0.40 | 0.19 | 0.45 | 0.52 | 0.01 | 0.00 | 0.21 | 0.61 | 0.40 | 1.82 | 1.82 | |||||||||||||
1970 | 0.96 | 1.05 | 0.85 | 0.38 | 0.14 | 0.63 | 0.00 | 0.00 | 0.10 | 0.90 | 1.04 | 0.63 | 1.05 | |||||||||||||
1971 | 1.48 | 0.47 | 0.82 | 0.58 | 0.45 | 0.50 | 0.23 | 0.07 | 0.81 | 0.29 | 0.97 | 0.44 | 1.48 | |||||||||||||
1972 | 2.20 | 0.86 | 1.80 | 0.35 | 0.43 | 0.91 | 0.21 | 0.17 | 0.97 | 0.54 | 0.29 | 1.21 | 2.20 | |||||||||||||
1973 | 0.48 | 0.12 | 0.40 | 0.69 | 0.20 | 0.03 | 0.02 | 0.07 | 0.38 | 1.44 | 1.79 | 0.76 | 1.79 | |||||||||||||
1974 | 2.35 | 1.02 | 0.94 | 0.54 | 0.14 | 0.02 | 0.20 | 0.00 | 0.00 | 1.03 | 0.48 | 1.46 | 2.35 | |||||||||||||
1975 | 0.69 | 0.65 | 1.84 | 0.27 | 0.11 | 0.36 | 0.26 | 0.25 | 0.72 | 0.62 | 0.87 | 1.03 | 1.84 | |||||||||||||
1976 | 0.43 | 0.65 | 0.55 | 0.18 | 0.21 | 0.04 | 0.34 | 0.90 | 0.84 | 0.09 | 0.22 | 0.21 | 0.90 | |||||||||||||
1977 | 0.54 | 0.60 | 0.38 | 0.23 | 0.37 | 0.25 | 0.22 | 0.61 | 3.66 | 0.82 | 2.03 | 1.10 | 3.66 | |||||||||||||
1978 | 0.43 | 0.82 | 0.58 | 0.41 | 0.32 | 0.19 | 0.62 | 0.67 | 0.56 | 0.03 | 0.38 | 0.35 | 0.82 | |||||||||||||
1979 | 1.02 | 0.60 | 0.46 | 0.50 | 0.61 | 0.24 | 0.02 | 0.35 | 0.18 | 1.08 | 0.77 | 0.98 | 1.08 | |||||||||||||
1980 | 0.89 | 0.59 | 0.48 | 0.90 | 0.31 | 0.60 | 0.01 | 0.00 | 0.34 | 0.55 | 0.73 | 1.78 | 1.78 | |||||||||||||
1981 | 0.31 | 0.58 | 0.56 | 0.31 | 0.40 | 0.11 | 0.45 | 0.00 | 0.50 | 0.37 | 2.12 | 2.54 | 2.54 | |||||||||||||
1982 | 0.87 | 2.02 | h | 1.10 | v | 0.50 | m | 0.02 | 0.58 | a | 0.13 | a | 0.03 | a | 0.43 | 0.74 | 0.54 | 1.88 | a | ----- | z | |||||
1983 | 0.42 | 1.35 | 1.41 | 0.16 | 0.37 | 0.59 | 0.26 | 0.75 | 1.33 | 0.61 | e | 1.81 | e | 1.16 | d | 1.81 | n | |||||||||
1984 | 0.14 | a | 0.71 | 0.81 | e | 0.32 | a | 0.19 | 0.26 | 0.00 | 0.53 | 0.24 | 0.58 | c | 1.37 | d | 0.76 | b | 1.37 | p | ||||||
1985 | 0.12 | k | 0.78 | 0.35 | 0.19 | 0.49 | 0.18 | b | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.37 | ----- | z | |||||
1986 | 0.74 | 1.92 | 0.50 | 0.16 | 0.51 | b | 0.59 | a | 0.02 | 0.00 | 0.48 | 0.97 | 1.20 | e | 0.29 | 1.92 | h | |||||||||
1987 | 1.01 | 0.95 | b | 0.41 | 0.51 | 0.53 | 0.33 | 0.93 | 0.00 | 0.00 | 0.01 | 0.26 | 0.60 | 1.01 | b | |||||||||||
1988 | 0.79 | 0.21 | 0.17 | 0.82 | 0.30 | 0.31 | 0.00 | 0.02 | 0.21 | 0.19 | 1.07 | 0.23 | b | 1.07 | b | |||||||||||
1989 | 1.00 | 0.26 | 0.90 | 0.53 | 0.79 | 0.13 | 0.00 | 0.33 | 0.78 | 0.40 | 0.38 | 0.43 | 1.00 | |||||||||||||
1990 | 1.47 | 0.40 | 0.74 | a | 0.48 | 0.69 | 0.13 | 0.13 | ----- | z | ----- | z | 0.47 | e | 0.78 | 0.56 | b | ----- | z | |||||||
1991 | 0.44 | 0.48 | 1.42 | 0.52 | 1.34 | 0.34 | 0.83 | 0.27 | 0.00 | 0.37 | b | 0.81 | 0.74 | e | 1.42 | g | ||||||||||
1992 | 0.26 | a | 0.26 | 0.17 | 0.40 | 1.28 | 0.65 | 0.49 | 0.00 | 0.12 | 0.90 | 0.69 | a | 0.99 | a | 1.28 | c | |||||||||
1993 | 1.10 | 0.39 | 0.34 | 0.78 | a | 1.27 | 0.90 | 0.45 | 0.72 | 0.00 | 0.36 | 0.44 | 1.11 | b | 1.27 | c | ||||||||||
1994 | 0.23 | a | 0.38 | 0.73 | 0.50 | b | 0.29 | 0.10 | 0.07 | 0.00 | 0.85 | 0.36 | a | 1.35 | b | 1.27 | c | 1.35 | i | |||||||
1995 | 1.25 | a | 1.10 | 0.93 | c | 0.60 | c | 0.68 | f | 0.35 | 0.85 | a | 0.00 | 0.10 | b | 0.17 | 0.36 | j | 1.82 | n | ----- | z | ||||
1996 | 3.08 | u | 1.40 | d | 0.64 | f | 0.62 | a | 0.74 | a | 0.26 | d | 1.30 | b | 0.15 | 0.50 | a | 0.59 | e | 1.45 | n | 3.15 | g | ----- | z | |
1997 | 3.86 | f | 0.55 | d | 0.59 | d | 0.93 | i | 0.71 | b | 0.46 | e | 1.03 | f | 0.49 | b | 0.61 | c | 0.86 | f | 0.60 | h | 1.00 | d | ----- | z |
1998 | 1.57 | i | 1.40 | f | 0.73 | e | 0.61 | d | 0.83 | h | 0.48 | a | 0.05 | 0.00 | 0.08 | a | 0.26 | h | 4.42 | i | 0.50 | f | ----- | z | ||
1999 | 1.56 | o | 1.75 | i | 1.20 | m | 0.32 | d | 0.25 | e | 0.00 | 0.00 | 1.16 | h | 0.00 | 0.23 | f | 1.57 | n | 0.36 | e | ----- | z | |||
2000 | 2.37 | o | 0.75 | i | 0.92 | j | 1.87 | i | 0.25 | e | 0.52 | h | 0.32 | i | 0.02 | b | 0.33 | e | 0.72 | e | 0.29 | g | 0.71 | p | ----- | z |
2001 | 0.55 | d | 0.32 | j | 0.66 | h | 0.42 | l | 0.41 | d | 0.06 | e | 0.18 | 0.01 | 0.35 | b | 0.27 | 1.90 | o | 1.25 | l | ----- | z | |||
2002 | 0.93 | k | 0.77 | h | 0.53 | i | 0.90 | i | 0.49 | h | 0.06 | 0.08 | b | 0.00 | 0.03 | g | 0.21 | c | 2.22 | g | 4.82 | r | ----- | z | ||
2003 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.89 | 0.74 | 0.61 | 0.40 | 0.46 | 0.36 | 0.22 | 0.21 | 0.48 | 0.67 | 0.90 | 0.99 | 1.61 | |||||||||||||
S.D. | 0.56 | 0.45 | 0.36 | 0.22 | 0.32 | 0.25 | 0.30 | 0.30 | 0.53 | 0.53 | 0.56 | 0.62 | 0.68 | |||||||||||||
SKEW | 1.26 | 1.04 | 1.51 | 0.95 | 1.38 | 0.36 | 1.72 | 2.11 | 3.50 | 2.05 | 0.82 | 1.37 | 1.05 | |||||||||||||
MAX | 2.67 | 2.22 | 1.84 | 1.11 | 1.40 | 0.92 | 1.30 | 1.59 | 3.66 | 2.94 | 2.53 | 3.33 | 3.66 | |||||||||||||
MIN | 0.14 | 0.11 | 0.06 | 0.03 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.01 | 0.07 | 0.21 | 0.81 | |||||||||||||
YRS | 58 | 59 | 59 | 60 | 62 | 64 | 62 | 62 | 63 | 62 | 57 | 60 | 49 |