YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1920 | ----- | z | 0.00 | v | ----- | z | 2.15 | 3.64 | 3.27 | 1.29 | ----- | z | ----- | z | 0.63 | 0.60 | 0.33 | 11.91 | e | |||||||
1921 | 0.52 | 0.21 | 0.70 | 0.71 | 1.69 | 3.53 | 0.85 | 0.07 | 0.80 | 0.10 | 1.23 | 0.59 | 11.00 | |||||||||||||
1922 | 0.64 | 0.32 | 0.10 | 2.28 | 5.13 | 4.77 | 1.84 | 0.18 | 0.05 | 1.62 | 1.15 | 0.72 | 18.80 | |||||||||||||
1923 | 0.23 | 0.16 | 0.40 | 1.06 | 1.27 | 4.38 | 3.88 | 4.05 | 3.95 | 1.18 | 0.53 | 0.29 | 21.38 | |||||||||||||
1924 | 0.54 | 1.33 | 1.05 | 1.54 | 0.56 | 1.84 | 2.42 | 0.21 | 1.05 | 1.33 | ----- | z | 0.96 | 12.83 | a | |||||||||||
1925 | 0.53 | 0.85 | ----- | z | 2.94 | a | 1.98 | 2.47 | 1.55 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 10.32 | f | |||||
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 | 0.49 | 0.00 | j | 0.44 | 0.34 | x | 1.69 | 3.60 | 2.32 | 0.00 | 0.61 | 0.19 | ----- | z | 0.33 | 9.67 | c | |||||||||
1938 | 0.19 | 0.21 | 1.44 | 0.26 | 5.08 | q | 2.20 | r | 2.42 | 0.69 | 1.16 | 0.15 | 0.88 | 0.20 | 7.60 | b | ||||||||||
1939 | 0.41 | a | 0.23 | 0.38 | 1.05 | 1.54 | 2.92 | ----- | z | 0.61 | 0.76 | 0.28 | 0.24 | 0.30 | 8.72 | a | ||||||||||
1940 | 0.34 | 0.53 | 1.03 | 2.69 | 2.28 | 1.41 | s | 2.56 | 0.31 | 1.07 | 0.45 | y | 1.20 | ----- | z | 12.01 | c | |||||||||
1941 | 0.03 | 0.09 | a | 0.56 | 0.70 | a | 3.13 | 2.70 | 1.79 | 1.97 | 2.75 | 1.70 | 0.38 | 0.60 | 16.40 | |||||||||||
1942 | 0.21 | 0.38 | 1.20 | 2.27 | 4.27 | 3.56 | 0.93 | 0.74 | 0.89 | 1.11 | 1.01 | 0.24 | 16.81 | |||||||||||||
1943 | 1.44 | 0.42 | 0.40 | 1.03 | 2.29 | 3.54 | s | 1.07 | 3.04 | 0.24 | 1.33 | 1.01 | a | 0.48 | 12.75 | a | ||||||||||
1944 | 0.97 | 0.44 | 1.00 | 2.17 | 2.50 | r | 11.35 | 1.13 | 0.57 | 0.51 | 0.03 | 0.67 | a | 0.51 | 19.35 | a | ||||||||||
1945 | 0.64 | 0.48 | 1.33 | v | 0.66 | 1.39 | 1.92 | 0.66 | 1.39 | 2.36 | 0.61 | 0.36 | t | 0.31 | 10.42 | b | ||||||||||
1946 | 0.20 | a | 0.12 | 1.48 | 0.65 | 3.20 | q | 2.47 | 1.80 | 0.54 | 2.45 | 2.86 | 0.20 | 0.71 | 13.48 | a | ||||||||||
1947 | 0.48 | 0.27 | 0.41 | 1.88 | 1.23 | 4.65 | 0.14 | 0.62 | 0.53 | 0.44 | 0.76 | 0.24 | 11.65 | |||||||||||||
1948 | 0.93 | 0.65 | 0.26 | 2.57 | 1.25 | 4.80 | 3.21 | 1.36 | 0.72 | 0.19 | 1.35 | 0.30 | 17.59 | |||||||||||||
1949 | 1.48 | 0.20 | 0.78 | 1.36 | 1.51 | 1.60 | 0.99 | 0.78 | 0.97 | 1.79 | 0.19 | 0.94 | 12.59 | |||||||||||||
1950 | 0.39 | 0.40 | 2.01 | 1.37 | 2.14 | 1.78 | 1.97 | 0.50 | 1.44 | 0.46 | 0.52 | 0.40 | 13.38 | |||||||||||||
1951 | 0.48 | 0.31 | 0.60 | 0.36 | 1.03 | 2.53 | 0.99 | 2.07 | 1.53 | 1.78 | 0.64 | 0.79 | 13.11 | |||||||||||||
1952 | 0.14 | 0.63 | 0.70 | 0.10 | 2.26 | 1.87 | 1.14 | 0.65 | 0.28 | 0.04 | 0.00 | 0.06 | 7.87 | |||||||||||||
1953 | 0.85 | 0.53 | a | 0.42 | 1.91 | 2.48 | 2.08 | 0.89 | 2.83 | 0.42 | 0.34 | 0.71 | 0.35 | 13.81 | ||||||||||||
1954 | 0.37 | a | 0.46 | 1.83 | 0.37 | a | 1.50 | 1.73 | 0.25 | 1.37 | 1.69 | 0.99 | 0.29 | 0.01 | 10.86 | |||||||||||
1955 | 0.41 | 1.05 | 0.61 | 0.83 | 4.01 | 2.71 | 1.27 | 0.19 | 0.54 | 0.58 | 0.96 | 0.73 | 13.89 | |||||||||||||
1956 | 0.39 | 0.13 | 0.51 | 0.74 | 3.14 | 0.65 | 1.35 | 1.68 | 0.35 | 0.50 | 1.78 | 0.24 | 11.46 | |||||||||||||
1957 | 0.29 | 0.53 | 0.52 | 4.07 | 1.60 | 4.43 | 1.43 | 1.66 | 0.52 | a | 1.15 | 0.85 | 0.06 | 17.11 | ||||||||||||
1958 | 0.40 | 0.65 | 0.38 | 1.48 | 0.53 | 4.50 | 2.09 | 0.42 | 0.10 | 1.81 | 0.80 | 0.74 | 13.90 | |||||||||||||
1959 | 0.38 | 1.12 | 0.28 | 1.04 | 2.07 | 3.57 | 1.35 | 0.08 | 2.06 | 0.75 | 0.95 | 0.08 | 13.73 | |||||||||||||
1960 | 0.35 | 0.78 | 0.75 | 0.48 | 0.91 | 3.15 | 0.28 | 1.06 | 0.26 | 0.30 | 0.16 | 0.69 | 9.17 | |||||||||||||
1961 | 0.11 | 0.70 | 0.75 | 0.50 | 2.96 | 1.47 | 1.90 | 0.87 | 1.90 | 0.61 | 0.56 | 0.65 | 12.98 | |||||||||||||
1962 | 0.32 | 0.29 | 0.39 | 0.78 | 4.12 | 1.71 | 2.96 | 1.04 | 1.51 | 1.04 | 0.42 | 0.44 | 15.02 | |||||||||||||
1963 | 0.84 | 0.82 | 0.12 | 2.50 | 1.85 | 3.76 | 2.48 | 0.05 | 1.78 | 0.50 | 0.25 | 0.44 | 15.39 | |||||||||||||
1964 | 0.35 | 0.22 | 0.44 | 1.35 | 1.76 | 4.66 | 0.56 | 1.79 | 0.20 | 0.54 | 1.23 | 0.68 | 13.78 | |||||||||||||
1965 | 0.58 | 0.20 | 0.26 | 0.69 | 1.92 | 2.90 | 2.10 | 0.56 | 0.70 | 0.02 | 0.17 | 0.12 | 10.22 | |||||||||||||
1966 | 0.32 | 0.34 | 1.03 | 0.84 | 1.25 | 1.80 | 2.15 | 0.95 | 2.46 | 0.98 | 0.41 | 0.60 | 13.13 | |||||||||||||
1967 | 0.36 | 0.33 | 0.52 | 3.84 | 1.63 | 3.90 | 0.86 | 0.01 | 4.55 | 0.94 | 0.47 | 0.50 | 17.91 | |||||||||||||
1968 | 0.51 | 0.30 | 0.55 | 0.62 | 3.08 | 3.91 | 0.68 | 3.11 | 0.83 | 0.73 | 0.85 | 1.54 | 16.71 | |||||||||||||
1969 | 0.44 | 0.13 | 0.44 | 2.91 | 1.56 | 2.56 | 1.40 | 0.36 | 0.04 | 0.95 | 0.36 | 0.56 | 11.71 | |||||||||||||
1970 | 0.66 | 0.83 | 0.58 | 1.42 | 4.05 | 1.51 | 0.97 | 0.16 | 1.38 | 0.65 | 1.07 | 0.39 | 13.67 | |||||||||||||
1971 | 1.63 | 0.67 | 0.33 | 1.25 | 4.26 | 1.25 | 0.19 | 0.38 | 1.38 | 5.86 | 0.62 | 0.35 | 18.17 | |||||||||||||
1972 | 0.58 | 0.63 | 0.73 | 0.94 | 2.76 | 3.88 | 2.21 | 1.64 | 1.07 | 0.93 | 0.07 | 0.57 | 16.01 | |||||||||||||
1973 | 0.17 | 0.24 | 1.30 | 2.34 | 1.50 | 2.12 | 0.08 | 1.02 | 2.31 | 1.30 | 0.22 | 0.61 | 13.21 | |||||||||||||
1974 | 0.26 | 0.22 | 0.54 | 2.24 | 3.04 | 0.68 | 2.81 | 0.60 | 0.68 | 1.23 | 0.37 | 0.21 | 12.88 | |||||||||||||
1975 | 1.65 | 0.35 | 0.73 | 2.54 | 3.08 | 3.66 | 0.41 | 1.13 | 0.06 | 0.94 | 0.53 | 0.97 | 16.05 | |||||||||||||
1976 | 0.32 | 0.37 | 0.43 | 3.20 | 2.52 | 4.24 | 0.67 | 2.58 | 0.45 | 0.98 | 0.38 | 0.27 | 16.41 | |||||||||||||
1977 | 0.76 | 0.28 | 3.05 | 0.46 | 1.07 | 4.27 | 0.40 | 0.75 | 2.39 | 1.50 | 0.91 | 0.98 | 16.82 | |||||||||||||
1978 | 0.40 | 1.26 | 0.28 | 1.24 | 7.10 | 0.78 | 1.86 | 0.72 | 1.59 | 0.00 | 2.01 | 0.71 | 17.95 | |||||||||||||
1979 | 0.31 | 1.25 | 0.31 | 0.91 | 1.59 | 1.53 | 2.43 | 0.36 | 0.45 | 0.77 | 0.51 | 0.09 | 10.51 | |||||||||||||
1980 | 0.26 | 0.70 | 0.76 | 0.97 | 0.88 | 3.81 | 0.17 | 1.47 | 0.62 | 1.15 | 0.15 | 0.44 | 11.38 | |||||||||||||
1981 | 0.36 | 0.24 | 0.20 | 0.11 | 2.11 | 2.30 | 2.67 | 0.30 | 0.89 | 0.75 | 0.20 | 0.30 | 10.43 | |||||||||||||
1982 | 0.50 | b | 0.24 | 1.42 | 1.23 | 3.74 | 2.24 | 1.82 | 2.13 | 1.33 | 2.57 | 0.35 | 0.72 | a | 18.29 | |||||||||||
1983 | 0.54 | 0.15 | 0.91 | 0.42 | 1.74 | 0.73 | 0.38 | 0.39 | 0.38 | 1.29 | 0.78 | 1.04 | 8.75 | |||||||||||||
1984 | 0.22 | 0.21 | 1.17 | 3.09 | 0.80 | 3.46 | 0.99 | 0.34 | 1.50 | 0.53 | 0.61 | 1.14 | 14.06 | |||||||||||||
1985 | 0.12 | 0.12 | 1.63 | 1.11 | 2.64 | 1.50 | 1.16 | 0.35 | 1.65 | 0.51 | 1.59 | 1.13 | 13.51 | |||||||||||||
1986 | 0.55 | 0.97 | 0.98 | 1.50 | 2.59 | 1.42 | 0.19 | 0.46 | 3.93 | 0.64 | 1.15 | 0.05 | 14.43 | |||||||||||||
1987 | 0.31 | 0.32 | 0.88 | 0.30 | 2.51 | a | 1.16 | 2.71 | 2.11 | 0.88 | 0.03 | 0.28 | 0.11 | 11.60 | ||||||||||||
1988 | 0.41 | 0.54 | 0.60 | 0.52 | 0.69 | 0.80 | 0.35 | 0.98 | 1.61 | 0.48 | 0.32 | 0.47 | 7.77 | |||||||||||||
1989 | 0.53 | 0.31 | 1.98 | 2.22 | 1.55 | 1.61 | 1.36 | 0.27 | 0.09 | 1.64 | 0.70 | 1.25 | 13.51 | |||||||||||||
1990 | 0.51 | 0.12 | 1.19 | 2.68 | 1.12 | a | 1.63 | 0.48 | 0.30 | 0.31 | 0.33 | 0.11 | 0.44 | 9.22 | ||||||||||||
1991 | 0.69 | 0.47 | 0.53 | 3.16 | 2.94 | 1.77 | 0.25 | 0.24 | 1.18 | 0.61 | 0.86 | 0.13 | 12.83 | |||||||||||||
1992 | 0.19 | 0.10 | 1.25 | 2.11 | 1.01 | 1.45 | 2.09 | 0.21 | 0.68 | 1.32 | 0.81 | 0.76 | 11.98 | |||||||||||||
1993 | 0.32 | 0.16 | 0.91 | 1.91 | 1.75 | a | 3.82 | c | 5.99 | 1.00 | 0.25 | 0.83 | 0.34 | 0.43 | b | 17.71 | ||||||||||
1994 | 0.63 | 0.31 | 0.00 | 1.84 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | 2.78 | g | |||||
1995 | 0.29 | 0.26 | 0.33 | 0.12 | y | 2.00 | 3.04 | 2.58 | 0.89 | 0.24 | 0.34 | 0.34 | 0.12 | 10.43 | a | |||||||||||
1996 | 0.53 | a | 0.41 | 1.05 | 0.81 | 6.43 | 2.00 | 0.76 | 0.38 | 0.75 | 0.71 | 0.55 | c | 0.91 | r | 14.38 | a | |||||||||
1997 | 0.48 | e | 0.21 | a | 0.15 | 1.71 | a | 2.36 | 1.98 | 3.09 | 0.99 | 0.24 | 0.94 | 0.64 | 0.27 | c | 13.06 | |||||||||
1998 | 0.21 | c | 0.07 | 1.81 | a | 0.44 | 0.81 | 2.00 | 2.83 | 2.52 | 1.23 | 3.21 | 0.68 | 0.03 | d | 15.84 | ||||||||||
1999 | 0.88 | c | 0.00 | e | 0.20 | a | 2.83 | a | 1.51 | 1.65 | 2.05 | 1.57 | 1.77 | 1.15 | 0.44 | 0.68 | a | 14.73 | ||||||||
2000 | 0.12 | 0.96 | 0.48 | 1.40 | 1.30 | 2.28 | 1.59 | 0.72 | 0.59 | 0.62 | 0.90 | a | 0.00 | 10.96 | ||||||||||||
2001 | 0.05 | a | 0.65 | 0.77 | 1.22 | 0.96 | 4.61 | 1.92 | 0.05 | 0.33 | 0.62 | 0.22 | a | 0.00 | b | 11.40 | ||||||||||
2002 | 0.10 | 0.47 | a | 0.53 | 1.21 | 0.94 | 2.14 | 2.41 | 4.25 | 0.94 | 0.28 | 0.00 | 0.18 | 13.45 | ||||||||||||
2003 | 0.91 | a | 0.62 | 2.23 | 1.48 | 1.60 | 2.93 | 0.40 | 0.79 | 1.83 | 0.65 | 0.37 | 0.41 | 14.22 | ||||||||||||
2004 | 1.00 | 0.63 | 0.15 | 0.21 | 1.49 | 0.40 | 3.24 | 1.72 | 0.67 | 1.21 | 0.02 | 0.10 | c | 10.84 | ||||||||||||
2005 | 0.24 | 0.31 | 0.43 | 2.30 | 4.49 | 4.24 | 0.63 | 0.93 | 1.35 | 2.76 | 0.26 | 0.79 | 18.73 | |||||||||||||
2006 | 0.00 | 0.29 | a | 0.22 | 4.41 | 1.16 | f | 0.50 | 0.08 | 0.41 | 1.88 | 1.17 | 0.61 | 1.00 | 10.57 | a | ||||||||||
2007 | 0.06 | a | 1.03 | 1.58 | 0.91 | 6.32 | 2.74 | 0.37 | 2.35 | 0.66 | 0.70 | 0.17 | f | 0.22 | a | 16.94 | a | |||||||||
2008 | 0.28 | a | 0.29 | a | 0.38 | 1.66 | 5.72 | 3.75 | 1.36 | 1.26 | 2.11 | 2.06 | 0.75 | 0.22 | a | 19.84 | ||||||||||
2009 | 0.42 | 0.50 | 2.70 | a | 1.77 | 0.83 | 1.96 | 1.04 | 2.14 | 0.05 | 1.76 | 0.00 | 0.97 | 14.14 | ||||||||||||
2010 | 0.14 | a | 0.37 | a | 0.27 | 2.36 | 4.13 | 5.00 | 1.27 | 1.81 | 0.75 | 0.10 | 0.95 | 0.39 | a | 17.54 | ||||||||||
2011 | 0.85 | a | 1.05 | b | 0.98 | f | 1.40 | 8.19 | 2.99 | 1.24 | 1.09 | 0.24 | 0.71 | 0.23 | 0.13 | 18.12 | a | |||||||||
2012 | 0.46 | 0.36 | 0.03 | 1.86 | 2.65 | 1.33 | 0.96 | 0.03 | 0.12 | 0.94 | 0.51 | 0.53 | 9.78 | |||||||||||||
2013 | 0.26 | b | 0.08 | 0.38 | 1.55 | 5.43 | 1.71 | 1.36 | 1.62 | 1.76 | 2.74 | 0.15 | 0.96 | a | 18.00 | |||||||||||
2014 | 0.22 | 0.52 | a | 1.30 | a | 0.77 | 2.13 | 2.04 | 0.15 | 3.08 | 1.56 | 0.40 | a | 0.72 | 0.38 | 13.27 | ||||||||||
2015 | 0.40 | 0.48 | 0.68 | 1.20 | 3.20 | 3.99 | 1.10 | 2.93 | 1.09 | 0.55 | a | 0.14 | 0.11 | 15.87 | ||||||||||||
2016 | 0.17 | 0.44 | 0.63 | 3.30 | 1.15 | 0.90 | 1.45 | 2.01 | 2.38 | 0.79 | 0.20 | 0.81 | 14.23 | |||||||||||||
2017 | 0.49 | 0.16 | 1.88 | 2.70 | 0.93 | 0.92 | 1.87 | 0.36 | 4.08 | 0.30 | 0.48 | 0.63 | 14.80 | |||||||||||||
2018 | 0.39 | 2.61 | 1.54 | 1.88 | 2.67 | 5.36 | 0.46 | 1.04 | 0.75 | 0.85 | 0.40 | 1.41 | 19.36 | |||||||||||||
2019 | 0.48 | 1.27 | 0.97 | 1.48 | 4.22 | 1.43 | 6.26 | 1.22 | 4.59 | 1.10 | 0.88 | 0.19 | 24.09 | |||||||||||||
2020 | 0.32 | 0.56 | 0.34 | 0.55 | 1.56 | 0.65 | 0.72 | a | 0.27 | 0.46 | a | 1.86 | 0.00 | 0.20 | c | 7.49 | ||||||||||
2021 | 0.39 | 0.69 | 0.32 | 1.15 | 5.11 | 0.58 | 2.28 | 0.97 | 0.08 | 1.62 | 0.01 | 0.24 | 13.44 | |||||||||||||
2022 | 0.18 | 0.67 | 0.24 | 3.15 | 2.39 | 2.40 | 0.62 | 1.73 | 1.20 | 0.65 | 0.27 | 1.20 | 14.70 | |||||||||||||
2023 | 0.45 | 0.80 | 0.81 | 0.13 | 3.12 | 3.56 | 3.13 | 0.83 | 1.34 | 1.64 | 0.00 | 0.09 | 15.90 | |||||||||||||
2024 | 0.27 | 0.28 | 0.86 | 0.33 | m | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 1.41 | i | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.46 | 0.49 | 0.79 | 1.54 | 2.47 | 2.65 | 1.53 | 1.09 | 1.18 | 1.00 | 0.57 | 0.48 | 14.13 | |||||||||||||
S.D. | 0.32 | 0.38 | 0.59 | 0.97 | 1.57 | 1.57 | 1.14 | 0.93 | 1.01 | 0.85 | 0.41 | 0.35 | 3.25 | |||||||||||||
SKEW | 1.78 | 2.32 | 1.45 | 0.71 | 1.39 | 1.95 | 1.53 | 1.24 | 1.52 | 2.57 | 0.96 | 0.76 | 0.30 | |||||||||||||
MAX | 1.65 | 2.61 | 3.05 | 4.41 | 8.19 | 11.35 | 6.26 | 4.25 | 4.59 | 5.86 | 2.01 | 1.54 | 24.09 | |||||||||||||
MIN | 0.00 | 0.00 | 0.00 | 0.10 | 0.53 | 0.40 | 0.08 | 0.00 | 0.04 | 0.00 | 0.00 | 0.00 | 7.49 | |||||||||||||
YRS | 93 | 92 | 90 | 91 | 88 | 89 | 91 | 90 | 90 | 90 | 87 | 90 | 76 |