YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1911 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.93 | 0.23 | 0.31 | 1.47 | i | |||
1912 | 0.23 | 0.09 | 0.07 | 4.64 | 2.78 | 1.89 | 4.37 | 2.55 | 1.72 | 0.22 | 0.00 | 0.20 | 18.76 | |||||||||||||
1913 | 0.00 | 0.55 | 0.49 | 1.81 | 4.36 | o | 3.17 | 4.11 | 0.67 | 0.71 | 0.63 | c | 0.27 | 0.08 | 12.49 | a | ||||||||||
1914 | ----- | z | 0.28 | 0.42 | 2.76 | 6.10 | 9.55 | 0.72 | 1.57 | 3.97 | 3.72 | 0.00 | 0.18 | 29.27 | a | |||||||||||
1915 | 0.27 | 1.38 | 0.85 | 2.04 | 1.71 | 2.11 | q | 4.38 | 2.11 | 2.20 | 1.40 | 0.21 | 0.71 | 17.26 | a | |||||||||||
1916 | 1.38 | 0.51 | 0.81 | 2.14 | 5.69 | 4.28 | 2.37 | 5.34 | 0.91 | a | 0.64 | 0.00 | 0.44 | 24.51 | ||||||||||||
1917 | ----- | z | 0.20 | 0.85 | 3.73 | 0.65 | 2.59 | 3.19 | 4.20 | 3.04 | a | 0.35 | 0.10 | 0.40 | 19.30 | a | ||||||||||
1918 | 0.41 | 0.33 | 0.71 | 1.51 | 4.91 | 3.54 | 4.79 | 1.89 | b | 0.34 | ----- | z | ----- | z | ----- | z | 18.43 | c | ||||||||
1919 | 0.15 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 2.05 | 2.27 | ----- | z | 4.47 | i | |||
1920 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1921 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
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 | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1949 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1950 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1951 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 3.24 | a | 2.55 | 0.85 | 1.80 | ----- | z | ----- | z | 8.44 | h | |||
1952 | ----- | z | ----- | z | ----- | z | 0.61 | p | 0.78 | 3.76 | 3.04 | 2.98 | 0.18 | 0.00 | 1.50 | 0.60 | 12.84 | d | ||||||||
1953 | 0.81 | 3.40 | 2.90 | 5.91 | 3.86 | 7.27 | 6.72 | 1.65 | 0.30 | 0.42 | 0.80 | 1.60 | 35.64 | |||||||||||||
1954 | 0.05 | 0.25 | 2.30 | 2.47 | 7.60 | 3.77 | 1.99 | 2.27 | 3.16 | ----- | z | ----- | z | ----- | z | 23.86 | c | |||||||||
1955 | ----- | z | ----- | z | 0.11 | o | 2.11 | 1.69 | 4.07 | 5.64 | 3.26 | 1.15 | 0.51 | 0.06 | 2.41 | 20.90 | c | |||||||||
1956 | 0.88 | 0.21 | 0.80 | 1.48 | 2.68 | 7.00 | 4.90 | 5.48 | 1.09 | 3.21 | 1.00 | 0.09 | 28.82 | |||||||||||||
1957 | 0.14 | 0.77 | 0.26 | 2.94 | 6.59 | 3.15 | 1.37 | 3.50 | 2.74 | 1.10 | 1.20 | 0.16 | 23.92 | |||||||||||||
1958 | 0.10 | 0.72 | 0.55 | 1.29 | 2.38 | 4.08 | 3.31 | 0.57 | 1.39 | 0.38 | 1.59 | 0.40 | 16.76 | |||||||||||||
1959 | 0.26 | 0.56 | 0.14 | 0.77 | 4.70 | 2.54 | 2.14 | 2.61 | 2.40 | 2.47 | 0.71 | 0.74 | 20.04 | |||||||||||||
1960 | 0.32 | 0.52 | 1.48 | 1.88 | 1.80 | 5.02 | 1.58 | 5.24 | 1.63 | 0.89 | 1.19 | 1.15 | 22.70 | |||||||||||||
1961 | 0.08 | 0.28 | 0.41 | 0.87 | 4.99 | 4.62 | 1.46 | 0.63 | 2.34 | 2.11 | 0.50 | 0.94 | 19.23 | |||||||||||||
1962 | 0.27 | 2.08 | 1.34 | 2.12 | 8.61 | 3.88 | 6.05 | 0.81 | 1.89 | 0.40 | 0.49 | 0.10 | 28.04 | |||||||||||||
1963 | 0.66 | 0.42 | 1.15 | 2.66 | 3.17 | 3.04 | 7.32 | 1.05 | 2.03 | 1.14 | 0.68 | 0.70 | 24.02 | |||||||||||||
1964 | 0.05 | 0.35 | 1.43 | 2.33 | 1.15 | 2.11 | 3.45 | 3.91 | 1.06 | 0.09 | 0.33 | 0.48 | 16.74 | |||||||||||||
1965 | 0.17 | 0.35 | 1.78 | 3.54 | 6.52 | 4.35 | 1.53 | 2.24 | 4.90 | 0.81 | 0.65 | 0.49 | 27.33 | |||||||||||||
1966 | 0.13 | 0.77 | 1.39 | 2.09 | 1.17 | 2.89 | 4.18 | 5.70 | 1.98 | 1.35 | 0.44 | 0.26 | 22.35 | |||||||||||||
1967 | 0.79 | 1.18 | 0.12 | 1.84 | 0.48 | 5.49 | 0.98 | 1.11 | 1.55 | 0.80 | 0.20 | 0.47 | 15.01 | |||||||||||||
1968 | 0.38 | 0.04 | 0.90 | 5.47 | 2.85 | 4.05 | 2.10 | 3.49 | 2.14 | 2.91 | 0.51 | 1.61 | 26.45 | |||||||||||||
1969 | 1.74 | 2.30 | 0.57 | 0.43 | 4.32 | 2.72 | 4.27 | 2.06 | 1.63 | 4.01 | 0.22 | 0.58 | 24.85 | |||||||||||||
1970 | 0.31 | 0.05 | 1.81 | 3.22 | 3.12 | 4.66 | 3.18 | 0.97 | 1.29 | 1.93 | 2.88 | 0.29 | 23.71 | |||||||||||||
1971 | 0.16 | 1.38 | 0.04 | 1.87 | 1.94 | 4.61 | 0.43 | 4.15 | 1.30 | 5.50 | 3.00 | 0.49 | 24.87 | |||||||||||||
1972 | 0.39 | 0.25 | 0.91 | 3.98 | 8.81 | 2.27 | 6.18 | 1.50 | 1.03 | 2.70 | 1.74 | 1.25 | 31.01 | |||||||||||||
1973 | 0.32 | 0.59 | 2.04 | 0.66 | 3.26 | 1.54 | 2.70 | 1.16 | 2.37 | 0.91 | 1.09 | 0.67 | 17.31 | |||||||||||||
1974 | 0.04 | 0.97 | 0.98 | 1.84 | 4.80 | 1.98 | 1.63 | 2.88 | 0.24 | 0.46 | 0.15 | 0.20 | 16.17 | |||||||||||||
1975 | 2.00 | 0.19 | 2.41 | 3.09 | 1.96 | 4.55 | 0.24 | 4.57 | 1.74 | 1.05 | 0.81 | 0.05 | 22.66 | |||||||||||||
1976 | 0.62 | 0.58 | 1.05 | 1.94 | 0.97 | 2.82 | 0.97 | 0.59 | 1.93 | 0.86 | 0.05 | 0.34 | 12.72 | |||||||||||||
1977 | 0.51 | 1.95 | 3.64 | 3.40 | 3.23 | 7.14 | 3.31 | 3.34 | 4.64 | 3.09 | 2.53 | 1.25 | 38.03 | |||||||||||||
1978 | 0.31 | 0.35 | 0.58 | 3.28 | 6.09 | 2.71 | 2.72 | 1.11 | 2.02 | 0.22 | 0.79 | 0.51 | 20.69 | |||||||||||||
1979 | 1.41 | 0.45 | 1.87 | 3.39 | 2.02 | 4.14 | 3.30 | 2.02 | 0.84 | 2.81 | a | 0.27 | 0.28 | 22.80 | ||||||||||||
1980 | 0.27 | 0.82 | 0.60 | 0.59 | 1.03 | 5.81 | 2.89 | 3.90 | 0.78 | 1.70 | 0.16 | 0.20 | 18.75 | |||||||||||||
1981 | 0.33 | 0.93 | 1.68 | 0.84 | 1.15 | 3.27 | 5.59 | 3.13 | 1.61 | 2.17 | 1.18 | 0.59 | 22.47 | |||||||||||||
1982 | 0.97 | 0.50 | 1.18 | 1.23 | 6.54 | 2.04 | 6.67 | 2.29 | 2.94 | 4.98 | 0.87 | 0.37 | 30.58 | |||||||||||||
1983 | 0.38 | 0.04 | 2.93 | 1.05 | 1.66 | 2.52 | 1.79 | 1.85 | 3.30 | 1.89 | 2.94 | 0.31 | 20.66 | |||||||||||||
1984 | 0.63 | 0.54 | 1.37 | 2.83 | 2.80 | 8.47 | 2.68 | 3.89 | 1.17 | 4.08 | 0.09 | 0.60 | 29.15 | |||||||||||||
1985 | 0.29 | 0.14 | 2.11 | 1.99 | 2.11 | 2.66 | 3.08 | 4.25 | 8.34 | 1.89 | 1.62 | 0.59 | 29.07 | |||||||||||||
1986 | 0.30 | 0.85 | 1.33 | 8.67 | 3.50 | 4.33 | 3.49 | 4.11 | 4.12 | 0.38 | 0.42 | 0.00 | 31.50 | |||||||||||||
1987 | 0.26 | 0.55 | 3.18 | 0.84 | 1.22 | 2.21 | 5.61 | 2.99 | 1.52 | 1.06 | 0.79 | 0.81 | 21.04 | |||||||||||||
1988 | 0.76 | 0.30 | 0.81 | 1.39 | 2.85 | 0.63 | 1.15 | 3.87 | 2.09 | 0.18 | 1.03 | 0.15 | 15.21 | |||||||||||||
1989 | 0.20 | 0.62 | 2.20 | 2.91 | 1.94 | 3.20 | 4.43 | 3.82 | 1.70 | 0.49 | 1.30 | 0.05 | 22.86 | |||||||||||||
1990 | 0.00 | 0.32 | 1.03 | 1.00 | 2.95 | 6.56 | 5.17 | 1.14 | 0.87 | 1.97 | 0.10 | a | 0.29 | 21.40 | ||||||||||||
1991 | 0.03 | 0.57 | 0.66 | 5.48 | 4.57 | 10.40 | 1.56 | 1.52 | 2.59 | 0.95 | 0.80 | 0.15 | 29.28 | |||||||||||||
1992 | 0.42 | 0.75 | 1.20 | 2.11 | 0.74 | 5.56 | 5.18 | 2.39 | 2.95 | 0.17 | 1.79 | 0.65 | 23.91 | |||||||||||||
1993 | 0.49 | 0.56 | 0.80 | 2.93 | 2.77 | 9.08 | 3.79 | 4.41 | 2.22 | 0.60 | 2.18 | 0.48 | 30.31 | |||||||||||||
1994 | 0.90 | 0.51 | 0.22 | 1.95 | 2.24 | 4.97 | 2.94 | 4.76 | 2.23 | 1.64 | 0.98 | 0.09 | 23.43 | |||||||||||||
1995 | 0.58 | 0.49 | 3.11 | 4.41 | 4.45 | 2.13 | 4.15 | 2.49 | 5.09 | 2.98 | 0.31 | 0.01 | 30.20 | |||||||||||||
1996 | 1.22 | 0.55 | a | 0.51 | 0.35 | 4.43 | 2.30 | 1.10 | 2.60 | 3.15 | 4.18 | 1.97 | 0.76 | 23.12 | ||||||||||||
1997 | 3.20 | 1.18 | 3.10 | 2.60 | 1.42 | 2.10 | 8.28 | 2.02 | 3.40 | 2.56 | 0.29 | 0.23 | 30.38 | |||||||||||||
1998 | 0.82 | 0.74 | 1.92 | 2.13 | 2.51 | 2.84 | 5.22 | 6.23 | 0.63 | 6.48 | 2.36 | 0.65 | 32.53 | |||||||||||||
1999 | 0.53 | 0.20 | 0.65 | 2.91 | 4.34 | 6.64 | 5.65 | 3.23 | 2.94 | 0.60 | 0.03 | 0.28 | 28.00 | |||||||||||||
2000 | 0.33 | 0.26 | 0.86 | 1.69 | 4.78 | 3.96 | 3.72 | 2.23 | 0.99 | 0.63 | 3.89 | 0.69 | 24.03 | |||||||||||||
2001 | 1.49 | 1.36 | a | 0.46 | 2.63 | 4.25 | 4.67 | 5.89 | 1.10 | 2.46 | 0.80 | 1.70 | 0.07 | 26.88 | ||||||||||||
2002 | 0.26 | 0.24 | 2.25 | 1.53 | 2.94 | 1.69 | 1.01 | 4.39 | 1.72 | 5.24 | 0.00 | 0.41 | 21.68 | |||||||||||||
2003 | 0.32 | 0.69 | 0.45 | 1.77 | 2.47 | 4.08 | 1.81 | 0.71 | 1.58 | 1.16 | 0.92 | 0.30 | 16.26 | |||||||||||||
2004 | 0.27 | 0.24 | 1.36 | 1.94 | 4.95 | 3.41 | 2.55 | 1.56 | 7.51 | 4.65 | a | 0.40 | 0.06 | 28.90 | ||||||||||||
2005 | 0.37 | 0.45 | 0.26 | 2.42 | 2.79 | 4.10 | 2.13 | 2.77 | 7.93 | 0.95 | 2.81 | 2.55 | 29.53 | |||||||||||||
2006 | 0.13 | 0.29 | 1.32 | 2.56 | 1.13 | 2.03 | ----- | z | ----- | z | ----- | z | ----- | z | 0.33 | 0.69 | 8.48 | d | ||||||||
2007 | 0.03 | 1.45 | 1.84 | 4.49 | 5.80 | 3.18 | 0.18 | 4.94 | 4.00 | 3.18 | 0.04 | 0.68 | 29.81 | |||||||||||||
2008 | 0.01 | 0.02 | 1.48 | a | 1.69 | 3.00 | 5.36 | 2.44 | 0.52 | 2.37 | 4.36 | 1.06 | 1.16 | 23.47 | ||||||||||||
2009 | 1.00 | 0.68 | 1.33 | 2.02 | 2.03 | 3.58 | 6.91 | 2.63 | 2.77 | 6.55 | 0.00 | 1.17 | 30.67 | |||||||||||||
2010 | 0.90 | 1.07 | 1.45 | 1.43 | 3.22 | b | 9.79 | b | 6.00 | l | 3.96 | 5.73 | 1.02 | 0.08 | 1.86 | 30.51 | a | |||||||||
2011 | 1.81 | a | 1.27 | 2.06 | 2.12 | 3.66 | 3.56 | 1.46 | 1.00 | o | 0.31 | 0.70 | 0.15 | 0.42 | 17.52 | a | ||||||||||
2012 | 0.40 | 1.66 | 0.69 | 4.25 | 4.24 | 7.46 | 0.30 | 2.86 | 0.25 | l | 1.54 | 0.01 | 2.13 | 25.54 | a | |||||||||||
2013 | 0.15 | 1.27 | 0.76 | 2.54 | 3.56 | e | 5.81 | 4.33 | 1.36 | 2.15 | 4.34 | 0.00 | 0.95 | 27.22 | ||||||||||||
2014 | 0.43 | 0.00 | 1.72 | 1.49 | 3.54 | 6.12 | 1.35 | 5.65 | 0.35 | 1.17 | 0.70 | 0.76 | 23.28 | |||||||||||||
2015 | 0.34 | 0.60 | 0.12 | 0.75 | 3.23 | 5.72 | 4.51 | 7.31 | 1.69 | 2.75 | 1.15 | 1.24 | 29.41 | |||||||||||||
2016 | 0.63 | 0.59 | 1.14 | 2.69 | 2.84 | 1.80 | 3.69 | 4.14 | 3.41 | 2.66 | 0.00 | m | ----- | z | 23.59 | b | ||||||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.53 | 0.68 | 1.25 | 2.42 | 3.34 | 4.22 | 3.33 | 2.86 | 2.30 | 1.90 | 0.89 | 0.61 | 24.58 | |||||||||||||
S.D. | 0.56 | 0.60 | 0.84 | 1.42 | 1.89 | 2.11 | 1.91 | 1.57 | 1.69 | 1.61 | 0.90 | 0.55 | 5.41 | |||||||||||||
SKEW | 2.29 | 2.02 | 0.84 | 1.62 | 0.83 | 1.05 | 0.39 | 0.49 | 1.67 | 1.11 | 1.25 | 1.66 | 0.01 | |||||||||||||
MAX | 3.20 | 3.40 | 3.64 | 8.67 | 8.81 | 10.40 | 8.28 | 7.31 | 8.34 | 6.55 | 3.89 | 2.55 | 38.03 | |||||||||||||
MIN | 0.00 | 0.00 | 0.04 | 0.35 | 0.48 | 0.63 | 0.18 | 0.52 | 0.18 | 0.00 | 0.00 | 0.00 | 12.72 | |||||||||||||
YRS | 69 | 70 | 70 | 71 | 71 | 71 | 71 | 71 | 71 | 72 | 71 | 70 | 59 |