YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1916 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 1.85 | 2.29 | 2.45 | 1.83 | 0.06 | 0.69 | 9.17 | f | ||||||
1917 | 2.75 | 0.82 | 1.72 | b | 2.70 | 2.50 | 1.91 | 4.21 | 2.36 | 2.58 | 1.25 | 0.10 | 0.61 | 23.51 | ||||||||||||
1918 | 1.01 | 0.40 | 1.42 | 2.17 | 5.49 | 1.12 | 3.02 | 5.72 | 1.61 | 2.88 | 4.19 | 2.99 | 32.02 | |||||||||||||
1919 | 0.57 | a | 2.51 | 1.01 | a | 3.29 | 2.16 | 7.21 | 4.92 | 0.78 | 0.96 | 2.05 | 2.28 | 0.30 | 28.04 | |||||||||||
1920 | 0.70 | 0.02 | 3.04 | 2.45 | 1.88 | 8.21 | 3.50 | 2.07 | 2.15 | 3.14 | 1.44 | 0.77 | 29.37 | |||||||||||||
1921 | 0.25 | 0.62 | 2.14 | 2.00 | 2.95 | 2.60 | i | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 7.96 | g | |||||
1922 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1923 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1924 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1925 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1926 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1927 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1928 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1929 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1930 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1931 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1932 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1933 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1934 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1935 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1936 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1937 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1938 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1939 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1940 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1941 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1942 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1943 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1944 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1945 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1946 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1947 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1948 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 1.69 | 0.85 | 1.94 | 0.15 | s | 4.48 | i | |||
1949 | 1.37 | 0.05 | y | 1.91 | 0.98 | 2.50 | 3.50 | 4.64 | 0.43 | 2.27 | 2.69 | 0.56 | 0.57 | 21.42 | a | |||||||||||
1950 | 0.77 | 0.19 | 1.83 | 2.83 | 5.52 | 0.67 | 3.07 | 0.23 | 2.23 | 1.70 | 1.18 | 0.82 | 21.04 | |||||||||||||
1951 | 0.20 | 1.44 | 1.50 | 1.96 | 2.82 | 5.84 | 3.04 | 2.23 | 5.42 | a | ----- | z | ----- | z | ----- | z | 24.45 | c | ||||||||
1952 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1953 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1954 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1955 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1956 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1957 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 3.13 | a | 5.29 | 2.34 | 1.17 | 0.65 | a | 0.20 | 12.78 | f | ||||
1958 | 0.18 | 0.35 | 0.26 | 1.56 | 0.57 | 2.68 | 2.05 | 2.87 | 2.35 | 1.07 | 0.85 | 0.04 | 14.83 | |||||||||||||
1959 | 0.27 | 0.29 | 0.07 | 0.44 | 5.55 | 2.30 | 1.87 | 6.06 | 1.42 | 2.51 | 0.39 | 2.06 | 23.23 | |||||||||||||
1960 | 0.49 | 0.18 | 0.56 | 2.17 | 5.17 | 2.95 | 4.48 | 5.66 | 2.74 | 0.26 | 0.83 | 0.40 | 25.89 | |||||||||||||
1961 | 0.05 | 0.55 | 0.88 | 1.55 | 3.28 | 0.97 | 4.21 | 1.13 | 3.07 | 1.93 | 1.57 | 1.10 | 20.29 | |||||||||||||
1962 | 0.36 | 1.08 | 1.01 | 1.11 | 5.63 | 1.71 | 7.77 | 2.90 | 2.79 | 1.32 | 0.60 | 0.00 | 26.28 | |||||||||||||
1963 | 0.46 | 0.16 | 0.93 | 2.52 | 7.05 | 5.63 | 2.55 | 1.30 | 2.12 | 0.81 | 0.33 | 0.51 | 24.37 | |||||||||||||
1964 | 0.33 | 0.00 | 1.22 | 2.20 | 2.16 | 2.33 | 0.98 | 4.90 | 2.86 | 0.32 | 0.67 | 0.63 | 18.60 | |||||||||||||
1965 | 0.21 | 1.29 | 5.26 | 3.54 | 6.06 | 2.67 | 3.90 | 3.02 | 4.80 | 0.48 | 1.32 | 1.28 | 33.83 | |||||||||||||
1966 | 0.52 | ----- | z | 1.01 | 1.72 | 2.19 | 3.54 | 2.56 | 4.56 | 1.09 | 2.63 | 0.67 | 0.66 | 21.15 | a | |||||||||||
1967 | 1.52 | 1.40 | 0.12 | 2.32 | 0.62 | 8.93 | 2.76 | 5.09 | 0.84 | 0.95 | 0.00 | a | 0.76 | 25.31 | ||||||||||||
1968 | 0.82 | 0.05 | 0.83 | 4.53 | 2.45 | 5.93 | 4.12 | ----- | z | 5.06 | 5.80 | 0.88 | 2.67 | a | 33.14 | a | ||||||||||
1969 | 2.47 | 0.04 | d | 0.91 | 2.48 | 2.58 | 3.67 | 2.93 | 0.52 | 0.47 | 1.60 | 0.49 | 2.04 | 20.20 | ||||||||||||
1970 | 0.31 | 0.10 | 1.12 | 2.81 | 5.05 | 3.87 | 1.39 | 4.20 | 2.50 | 5.20 | 4.44 | 0.34 | 31.33 | |||||||||||||
1971 | 0.71 | 0.09 | c | 0.29 | 1.26 | 3.02 | 7.04 | 2.32 | 2.26 | 1.88 | 4.43 | 3.20 | 0.38 | 26.88 | ||||||||||||
1972 | 0.79 | 0.35 | 1.68 | 2.06 | 3.80 | 3.54 | 6.45 | 3.20 | 2.60 | 1.70 | 0.90 | 1.11 | 28.18 | |||||||||||||
1973 | 0.55 | 0.43 | 1.66 | 1.49 | 3.74 | 2.28 | 3.95 | 6.10 | 2.80 | 2.76 | 2.57 | 1.11 | 29.44 | |||||||||||||
1974 | 0.01 | 0.74 | 0.52 | 1.88 | 2.71 | 4.02 | 3.99 | 3.78 | 0.74 | 0.89 | 0.84 | 0.16 | 20.28 | |||||||||||||
1975 | 2.04 | 0.51 | 1.31 | 3.87 | 1.98 | 5.91 | 0.54 | 2.42 | 1.21 | 0.80 | 3.32 | 0.23 | 24.14 | |||||||||||||
1976 | 0.73 | 0.49 | 2.66 | 0.54 | 0.91 | 3.20 | ----- | z | 1.44 | 1.51 | 0.55 | 0.13 | 0.26 | 12.42 | a | |||||||||||
1977 | 0.33 | 1.01 | 2.87 | 3.45 | 4.19 | 2.54 | 5.29 | 4.09 | 3.17 | 3.47 | 3.04 | 1.28 | 34.73 | |||||||||||||
1978 | 0.07 | 0.30 | 0.28 | 3.54 | 3.01 | 4.18 | 4.31 | 5.53 | 3.73 | 0.28 | 0.87 | 1.42 | 27.52 | |||||||||||||
1979 | 1.33 | 1.03 | 2.98 | 1.22 | 4.15 | 4.84 | 1.60 | 4.15 | 1.45 | 3.75 | 1.10 | 0.11 | 27.71 | |||||||||||||
1980 | 0.38 | 0.36 | 0.38 | 0.64 | 1.44 | 4.56 | 1.45 | 5.41 | 2.03 | 1.28 | 0.13 | 0.13 | 18.19 | |||||||||||||
1981 | 0.22 | 1.16 | 1.58 | 3.04 | 1.58 | 5.38 | 5.02 | 6.93 | 0.90 | 3.06 | 1.15 | 1.13 | 31.15 | |||||||||||||
1982 | 1.59 | 0.09 | 1.61 | 3.35 | 3.17 | 2.54 | 2.98 | 2.04 | 4.48 | 3.38 | 3.07 | 2.21 | 30.51 | |||||||||||||
1983 | 0.41 | 0.25 | 2.82 | 2.63 | 3.16 | 3.55 | 2.59 | a | 3.80 | 1.60 | 1.92 | 4.21 | 0.94 | 27.88 | ||||||||||||
1984 | 0.69 | 1.22 | 1.75 | 3.48 | 1.18 | 8.53 | 2.44 | 3.64 | 2.12 | 4.55 | 0.12 | 1.72 | 31.44 | |||||||||||||
1985 | 0.31 | 0.04 | 1.47 | a | 3.22 | 3.04 | 7.16 | 2.26 | 5.50 | 4.52 | 2.80 | 0.92 | 1.12 | a | 32.36 | |||||||||||
1986 | 0.55 | 0.78 | 1.12 | 5.60 | 3.43 | 4.20 | 3.91 | 2.88 | 4.69 | 0.95 | 0.75 | 0.04 | 28.90 | |||||||||||||
1987 | 0.28 | 0.01 | 1.25 | 0.15 | 2.41 | 5.14 | 6.99 | 4.21 | 1.73 | 0.77 | 2.01 | 0.81 | 25.76 | |||||||||||||
1988 | 0.77 | 0.18 | 0.83 | 1.23 | 2.24 | 0.09 | 2.02 | 5.80 | 2.61 | 0.55 | 1.59 | 0.31 | 18.22 | |||||||||||||
1989 | 0.57 | 0.76 | 1.74 | 1.55 | 1.77 | a | 3.96 | 4.36 | 5.56 | 2.38 | 0.11 | 0.65 | 0.37 | 23.78 | ||||||||||||
1990 | 0.03 | 0.53 | 2.94 | 2.33 | 5.17 | a | 9.06 | 6.19 | 0.65 | 1.81 | 1.53 | 0.42 | 0.51 | 31.17 | ||||||||||||
1991 | 0.24 | 0.79 | 1.73 | 4.40 | 7.37 | 3.09 | 5.01 | 3.42 | 5.99 | 1.55 | 4.96 | 0.18 | 38.73 | |||||||||||||
1992 | 0.57 | 0.28 | 0.87 | a | 1.37 | 2.00 | 4.07 | 3.85 | 5.11 | 2.97 | 2.20 | a | 1.24 | 0.85 | 25.38 | |||||||||||
1993 | 0.47 | 0.15 | a | 1.09 | 1.68 | 4.97 | 6.82 | 4.90 | 7.52 | 2.14 | 0.92 | 1.81 | 0.85 | 33.32 | ||||||||||||
1994 | 1.04 | 0.36 | 0.33 | 2.68 | 1.55 | 3.21 | 4.37 | 3.77 | 3.19 | 1.80 | 0.53 | a | 0.54 | 23.37 | ||||||||||||
1995 | ----- | z | 0.45 | 3.01 | 2.12 | a | 2.26 | 2.18 | 3.43 | 5.60 | 1.82 | 2.87 | 1.37 | 1.53 | b | 26.64 | a | |||||||||
1996 | 1.67 | 0.12 | b | 0.81 | b | ----- | z | 4.32 | t | 2.16 | s | 1.79 | v | 2.11 | y | 1.53 | r | 3.35 | u | 4.60 | s | 1.88 | v | 2.60 | i | |
1997 | 1.15 | v | 0.08 | x | 1.15 | a | 0.95 | v | 1.06 | u | 7.00 | v | 9.33 | s | 4.89 | r | 1.80 | s | 0.90 | v | 0.69 | y | ----- | z | 1.15 | k |
1998 | 1.11 | b | 0.76 | a | 3.52 | b | 0.90 | 4.53 | 5.08 | 2.93 | 3.49 | 0.65 | 2.19 | 0.67 | 0.13 | b | 25.96 | |||||||||
1999 | 3.47 | a | 0.16 | 0.96 | 2.72 | 4.42 | 4.81 | 4.18 | 6.35 | 2.38 | 0.57 | 0.27 | 1.10 | 31.39 | ||||||||||||
2000 | 0.47 | b | 1.01 | 0.87 | 1.63 | 4.11 | 3.58 | 3.98 | 1.78 | 0.19 | 1.41 | 2.31 | 0.66 | 22.00 | ||||||||||||
2001 | 0.65 | 0.99 | a | 0.50 | 6.55 | t | 2.82 | 3.97 | 1.20 | 1.76 | a | 3.47 | 1.60 | 2.27 | 0.26 | 19.49 | a | |||||||||
2002 | 0.25 | a | 1.10 | 0.86 | 2.45 | 2.55 | 10.51 | 4.33 | 8.44 | 0.88 | o | 3.67 | 0.05 | 0.44 | b | 34.65 | a | |||||||||
2003 | 0.43 | n | 0.85 | a | 1.04 | 1.82 | 3.29 | u | 5.58 | a | 2.39 | 0.47 | 3.55 | 0.55 | 0.76 | 0.47 | 17.48 | b | ||||||||
2004 | 0.28 | 0.75 | 1.29 | 0.95 | 6.53 | 4.08 | 4.71 | 3.21 | 5.16 | 2.52 | 1.00 | 0.08 | 30.56 | |||||||||||||
2005 | 1.55 | 0.73 | 0.58 | 3.07 | 2.57 | 5.82 | 4.44 | 3.93 | 7.27 | 2.21 | 2.35 | 1.34 | 35.86 | |||||||||||||
2006 | 0.09 | 0.51 | 1.91 | 2.90 | 4.16 | 2.37 | 1.49 | 3.59 | 4.30 | a | 0.51 | 0.51 | 1.50 | 23.84 | ||||||||||||
2007 | 0.54 | 0.46 | 2.60 | 2.49 | 1.65 | 2.58 | 0.50 | 6.19 | 2.67 | 4.79 | 0.08 | 0.59 | 25.14 | |||||||||||||
2008 | 0.24 | 0.42 | 1.43 | 2.64 | 3.16 | 3.39 | 0.92 | 4.89 | 2.84 | 1.84 | 1.72 | 1.23 | 24.72 | |||||||||||||
2009 | 0.45 | 1.15 | 2.98 | 1.27 | 0.96 | 3.33 | 1.01 | 5.69 | 2.16 | 5.65 | ----- | z | ----- | z | 24.65 | b | ||||||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.72 | 0.58 | 1.47 | 2.26 | 3.26 | 4.24 | 3.37 | 3.76 | 2.62 | 2.01 | 1.35 | 0.82 | 26.74 | |||||||||||||
S.D. | 0.69 | 0.48 | 0.98 | 1.08 | 1.64 | 2.21 | 1.60 | 1.96 | 1.43 | 1.41 | 1.21 | 0.67 | 5.14 | |||||||||||||
SKEW | 1.98 | 1.34 | 1.28 | 0.51 | 0.61 | 0.73 | 0.35 | 0.04 | 0.96 | 0.94 | 1.27 | 1.23 | -0.03 | |||||||||||||
MAX | 3.47 | 2.51 | 5.26 | 5.60 | 7.37 | 10.51 | 7.77 | 8.44 | 7.27 | 5.80 | 4.96 | 2.99 | 38.73 | |||||||||||||
MIN | 0.01 | 0.00 | 0.07 | 0.15 | 0.57 | 0.09 | 0.50 | 0.23 | 0.19 | 0.11 | 0.00 | 0.00 | 14.83 | |||||||||||||
YRS | 57 | 57 | 60 | 57 | 57 | 57 | 58 | 58 | 59 | 59 | 58 | 57 | 47 |