YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1922 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.61 | f | 1.49 | 1.49 | k | |
1923 | 0.82 | 0.02 | 0.01 | 0.80 | 1.73 | 1.03 | 0.24 | 0.10 | 0.28 | 2.16 | 0.52 | 0.05 | a | 7.76 | ||||||||||||
1924 | 0.44 | 0.81 | 0.37 | 0.45 | 0.00 | 0.27 | 0.06 | 0.57 | 0.03 | 0.65 | 0.69 | 2.39 | a | 6.73 | ||||||||||||
1925 | 1.36 | 0.67 | 0.56 | 1.64 | 0.52 | 0.31 | 0.00 | a | 0.47 | 1.13 | 1.17 | 1.05 | 1.06 | 9.94 | ||||||||||||
1926 | 0.75 | 1.34 | 0.26 | 0.63 | 0.54 | 0.37 | 0.16 | 0.77 | 0.09 | 0.00 | 2.98 | 0.85 | 8.74 | |||||||||||||
1927 | 0.77 | 1.37 | 0.47 | 0.52 | 0.68 | 0.46 | 0.00 | 0.44 | 0.84 | 0.69 | 2.06 | 0.08 | 8.38 | |||||||||||||
1928 | 1.93 | 0.65 | 0.76 | 0.71 | 0.00 | 0.05 | 0.00 | 0.00 | 0.05 | 0.29 | 0.41 | 1.00 | 5.85 | |||||||||||||
1929 | 1.92 | 0.43 | 0.30 | 1.10 | 0.14 | 2.92 | 0.00 | a | 0.00 | 0.15 | 0.05 | 0.03 | 1.30 | 8.34 | ||||||||||||
1930 | 1.21 | a | 0.83 | 0.40 | 0.57 | 1.02 | 0.44 | 0.00 | 0.18 | 0.64 | 0.70 | 0.33 | 0.19 | 6.51 | ||||||||||||
1931 | 0.87 | 0.57 | 1.65 | 0.51 | 0.05 | 0.22 | 0.22 | 0.00 | 0.12 | 0.19 | 0.75 | 0.87 | 6.02 | |||||||||||||
1932 | 0.70 | 0.29 | 1.61 | 0.71 | 1.65 | 0.25 | 0.42 | 0.01 | 0.01 | 1.11 | 0.99 | 1.31 | 9.06 | |||||||||||||
1933 | 0.52 | 1.11 | 0.59 | 0.94 | 1.14 | 0.27 | 0.00 | 0.07 | 0.27 | 1.71 | 0.10 | 1.31 | 8.03 | |||||||||||||
1934 | 1.05 | 0.83 | 0.72 | 0.05 | 0.02 | 1.62 | a | 0.01 | 0.07 | 0.00 | 0.58 | 1.74 | 0.91 | 7.60 | ||||||||||||
1935 | 0.25 | 0.52 | 0.38 | 1.99 | 0.32 | 0.51 | 0.15 | 0.00 | 0.00 | 0.25 | 0.45 | 1.09 | 5.91 | |||||||||||||
1936 | 1.86 | 0.95 | 0.57 | 1.21 | 0.34 | 1.95 | 0.16 | 0.31 | 0.96 | 0.00 | 0.08 | 0.23 | 8.62 | |||||||||||||
1937 | 1.38 | 1.02 | 0.82 | 0.73 | 1.01 | 0.33 | 0.21 | 0.09 | 0.51 | 0.53 | 1.79 | 1.79 | 10.21 | |||||||||||||
1938 | 1.24 | 0.70 | 2.15 | 0.58 | 0.98 | 0.69 | 0.40 | 0.01 | 0.07 | 0.70 | 1.18 | 0.51 | 9.21 | |||||||||||||
1939 | 0.62 | 0.64 | 0.58 | 0.04 | 0.17 | 0.09 | 0.15 | 0.00 | 0.49 | 0.49 | 0.09 | 0.94 | 4.30 | |||||||||||||
1940 | 1.62 | 1.63 | 1.57 | 1.19 | 0.00 | 0.14 | a | 0.05 | 0.00 | 3.12 | 2.23 | 1.41 | 0.55 | 13.51 | ||||||||||||
1941 | 1.46 | ----- | z | 0.06 | 0.95 | 0.94 | 2.68 | 0.25 | 1.78 | 0.17 | 1.46 | 0.84 | 0.61 | 11.20 | a | |||||||||||
1942 | 1.49 | 1.69 | 0.18 | 0.67 | 1.29 | 0.47 | 0.12 | 0.41 | 0.28 | 0.77 | 2.37 | 1.67 | 11.41 | |||||||||||||
1943 | 1.89 | 0.69 | 1.12 | 1.02 | 0.92 | 0.99 | 0.12 | 0.09 | 0.00 | 1.29 | 0.64 | 0.21 | 8.98 | |||||||||||||
1944 | 0.80 | 1.15 | 0.41 | 1.78 | 0.81 | 1.38 | 0.09 | 0.00 | 0.18 | 0.12 | 1.50 | 0.92 | 9.14 | |||||||||||||
1945 | 1.00 | 1.35 | 1.51 | 0.31 | 1.59 | 0.64 | 0.29 | 0.03 | 0.83 | 0.68 | 0.97 | 2.53 | 11.73 | |||||||||||||
1946 | 1.00 | 0.70 | 1.34 | 0.60 | 0.64 | 0.25 | 0.10 | 0.00 | 0.20 | 1.08 | 1.52 | 0.76 | 8.19 | |||||||||||||
1947 | 0.33 | 0.71 | 0.87 | 0.77 | 1.24 | 1.98 | 0.00 | 0.02 | 0.05 | 0.96 | 0.58 | 0.33 | 7.84 | |||||||||||||
1948 | 0.22 | 0.58 | 0.70 | 0.64 | 1.12 | 0.24 | 0.16 | 0.05 | 0.29 | 0.33 | 0.73 | 0.89 | 5.95 | |||||||||||||
1949 | 0.03 | 0.06 | 0.18 | 0.00 | 0.75 | 0.32 | 0.00 | 0.00 | 0.01 | 0.36 | 1.32 | 0.24 | c | 3.27 | ||||||||||||
1950 | 1.16 | b | 0.38 | 1.56 | 0.15 | e | 0.45 | 0.93 | 0.03 | 0.05 | 0.14 | 0.16 | 0.97 | 1.79 | 7.77 | |||||||||||
1951 | 0.90 | 1.41 | 0.53 | 0.38 | 0.95 | 0.36 | 0.18 | 0.15 | 0.07 | 1.25 | 0.90 | 1.38 | 8.46 | |||||||||||||
1952 | 0.72 | 0.89 | a | 0.59 | 0.94 | 0.91 | 1.05 | 0.08 | 0.06 | 0.22 | 0.00 | 0.54 | 0.91 | 6.91 | ||||||||||||
1953 | 1.52 | 1.92 | 0.64 | 0.78 | 2.85 | 1.39 | 0.00 | 0.09 | 0.00 | 0.37 | 1.26 | 1.37 | 12.19 | |||||||||||||
1954 | 0.66 | 0.44 | 0.60 | 0.72 | 0.14 | 1.34 | 0.06 | 0.04 | 0.23 | 0.21 | 1.36 | 0.66 | 6.46 | |||||||||||||
1955 | 0.97 | 0.41 | 0.22 | 1.77 | 0.59 | 0.98 | 0.27 | 0.03 | 1.05 | 0.90 | 1.41 | 2.53 | 11.13 | |||||||||||||
1956 | 2.94 | 0.21 | 0.27 | 0.47 | 1.89 | 1.12 | 0.20 | 0.97 | 0.10 | 3.06 | 0.27 | 1.54 | 13.04 | |||||||||||||
1957 | 1.15 | 1.75 | 2.53 | 1.07 | 3.94 | 0.42 | 0.00 | 0.15 | 0.00 | 1.34 | 0.73 | 2.43 | 15.51 | |||||||||||||
1958 | 2.16 | 2.74 | 1.31 | 1.79 | 1.65 | 0.87 | 0.11 | 0.81 | 0.27 | 0.21 | 0.53 | 1.48 | 13.93 | |||||||||||||
1959 | 1.02 | 1.01 | 0.66 | 0.47 | 1.62 | 0.11 | 0.00 | 0.87 | 3.39 | 0.88 | 0.37 | 0.77 | 11.17 | |||||||||||||
1960 | 1.63 | 1.64 | 1.38 | 0.51 | 1.36 | 0.06 | 0.28 | 0.87 | 0.24 | 0.22 | 2.63 | 0.64 | 11.46 | |||||||||||||
1961 | 0.89 | 1.66 | 1.34 | 0.00 | 0.86 | 0.13 | 0.15 | 0.11 | 0.72 | 1.03 | 0.79 | 0.85 | 8.53 | |||||||||||||
1962 | 1.28 | 1.50 | 0.86 | 0.38 | 2.61 | 0.04 | 0.05 | 0.16 | 0.27 | 2.21 | 1.20 | 1.08 | 11.64 | |||||||||||||
1963 | 0.88 | 0.91 | 0.14 | 2.08 | 0.99 | 1.87 | 0.06 | a | 0.70 | 1.26 | 1.44 | 1.57 | 1.38 | 13.28 | ||||||||||||
1964 | 2.33 | 0.15 | 1.02 | ----- | z | 1.08 | 2.23 | 0.34 | 0.99 | 0.13 | 0.25 | 2.22 | 2.58 | 13.32 | a | |||||||||||
1965 | 2.35 | 0.29 | 0.28 | 1.27 | 0.72 | ----- | z | 1.49 | 1.34 | 0.61 | 0.33 | 2.18 | 0.27 | 11.13 | a | |||||||||||
1966 | 0.58 | 0.46 | 0.79 | 0.27 | 0.30 | 0.37 | 0.00 | 0.09 | 0.38 | 0.41 | 1.62 | 1.50 | 6.77 | |||||||||||||
1967 | 1.52 | 0.23 | 0.97 | 2.14 | 1.28 | 2.96 | 0.05 | 0.00 | 0.63 | 0.92 | 0.45 | 0.48 | 11.63 | |||||||||||||
1968 | 0.78 | 1.93 | 0.63 | 0.14 | 0.97 | 0.51 | ----- | z | 3.58 | 0.10 | 0.39 | 2.54 | 2.24 | 13.81 | a | |||||||||||
1969 | 3.67 | 1.42 | 0.24 | 1.31 | 0.75 | 1.14 | 0.04 | 0.00 | 0.30 | 1.72 | 0.34 | 2.43 | 13.36 | |||||||||||||
1970 | 5.23 | 0.46 | 1.30 | 0.45 | 0.92 | 1.74 | 0.11 | 0.00 | 1.85 | 1.57 | 2.91 | 2.34 | 18.88 | |||||||||||||
1971 | 1.03 | 0.41 | 1.89 | 0.30 | 0.29 | 1.40 | 0.36 | 0.10 | 0.24 | 0.79 | 2.30 | 1.18 | 10.29 | |||||||||||||
1972 | 1.33 | 0.85 | 1.17 | 0.35 | 0.20 | 2.70 | 0.00 | 0.02 | 0.63 | 0.63 | 0.81 | 2.39 | 11.08 | |||||||||||||
1973 | 2.04 | 0.36 | 0.79 | 0.65 | 0.82 | 0.02 | 0.18 | 0.04 | 1.05 | 0.48 | 1.99 | 1.58 | 10.00 | |||||||||||||
1974 | 1.36 | 0.81 | 1.29 | 0.34 | 0.36 | 0.29 | 0.98 | 0.03 | 0.00 | 1.02 | 0.70 | 1.32 | 8.50 | |||||||||||||
1975 | 0.74 | 1.82 | 2.42 | 1.75 | 0.18 | 1.72 | 0.08 | 0.74 | 0.00 | 1.61 | 0.43 | 1.72 | 13.21 | |||||||||||||
1976 | 1.88 | 1.10 | 1.02 | 1.41 | 0.21 | 0.53 | 0.54 | 1.32 | 1.98 | 0.15 | 0.29 | 0.26 | 10.69 | |||||||||||||
1977 | 0.80 | 0.21 | 0.61 | 0.14 | 2.17 | 0.17 | 0.18 | 0.55 | 1.30 | ----- | z | 2.07 | 1.96 | 10.16 | a | |||||||||||
1978 | 3.62 | 1.67 | 0.92 | 3.36 | 0.16 | 0.43 | 0.42 | 1.12 | 0.50 | 0.00 | 0.60 | 0.70 | 13.50 | |||||||||||||
1979 | 1.93 | 1.26 | 0.96 | 0.72 | 0.82 | 0.24 | 0.00 | 2.08 | 0.21 | 1.43 | 0.83 | 1.57 | 12.05 | |||||||||||||
1980 | 1.78 | 1.58 | 1.56 | 0.55 | 2.04 | 0.82 | 0.11 | 0.10 | 2.55 | 0.26 | 1.10 | 1.82 | 14.27 | |||||||||||||
1981 | 0.84 | 1.32 | 2.28 | 1.02 | 1.17 | 1.11 | 0.52 | 0.30 | 0.45 | 0.74 | 2.17 | 2.71 | 14.63 | |||||||||||||
1982 | 1.25 | b | 1.37 | a | 0.54 | 0.86 | 0.33 | 1.30 | 0.99 | 0.11 | 1.02 | 2.21 | 1.07 | 2.74 | 13.79 | |||||||||||
1983 | 1.49 | 1.47 | 3.05 | 1.45 | 0.93 | 0.65 | 1.08 | 0.80 | 0.10 | 0.68 | 1.71 | 2.38 | 15.79 | |||||||||||||
1984 | 0.28 | ----- | z | 1.54 | 0.89 | 1.89 | 1.51 | ----- | z | 0.63 | 0.30 | 0.49 | 1.76 | ----- | z | 9.29 | c | |||||||||
1985 | 0.00 | a | 1.14 | 0.75 | 0.68 | 1.21 | 0.53 | 0.41 | 0.21 | 1.79 | 0.63 | 1.11 | a | 1.10 | 9.56 | |||||||||||
1986 | 0.73 | 1.91 | 1.48 | 1.42 | 0.59 | 0.08 | 0.17 | 0.08 | 1.87 | 0.23 | 0.40 | 0.18 | 9.14 | |||||||||||||
1987 | 1.08 | u | 1.04 | 1.23 | 0.02 | 1.86 | a | 1.88 | 0.17 | 0.40 | 0.00 | 0.00 | 1.08 | 0.93 | 8.61 | a | ||||||||||
1988 | 1.42 | a | 0.03 | 0.65 | 0.84 | 0.78 | 0.40 | 0.00 | a | 0.00 | 0.18 | 0.00 | 2.45 | 1.16 | p | 6.75 | a | |||||||||
1989 | 0.68 | 1.17 | 2.40 | b | 0.70 | 0.58 | 0.25 | a | 0.09 | a | 1.13 | 0.84 | 0.90 | 0.38 | 0.05 | 9.17 | ||||||||||
1990 | 0.66 | 0.28 | 0.50 | 1.16 | 1.36 | 0.63 | 0.10 | 0.81 | 0.07 | 0.52 | 0.58 | 0.51 | 7.18 | |||||||||||||
1991 | 0.50 | 0.62 | 0.50 | 0.75 | 1.98 | 1.19 | 0.00 | 0.06 | 0.51 | 1.38 | 1.83 | 0.57 | 9.89 | |||||||||||||
1992 | 0.55 | 1.06 | 0.54 | 0.81 | 0.22 | 1.36 | 0.54 | 0.03 | ----- | z | 0.73 | 1.45 | 1.11 | 8.40 | a | |||||||||||
1993 | 1.69 | a | 0.50 | 2.45 | 2.32 | 1.10 | 1.86 | 0.37 | 0.55 | 0.02 | 0.23 | 0.95 | 0.54 | 12.58 | ||||||||||||
1994 | 1.45 | 0.55 | 0.07 | 0.92 | 1.38 | 0.25 | 0.12 | 0.04 | 0.20 | 1.12 | 2.03 | 1.11 | a | 9.24 | ||||||||||||
1995 | 1.88 | 0.28 | 1.67 | 1.20 | 1.95 | 1.34 | 0.63 | 0.23 | 0.22 | 0.55 | 0.95 | 2.07 | 12.97 | |||||||||||||
1996 | 0.73 | a | 0.82 | 2.32 | 0.81 | 2.87 | 0.21 | 0.12 | 0.06 | 0.59 | 0.78 | ----- | z | 2.22 | 11.53 | a | ||||||||||
1997 | 2.36 | 0.14 | 0.74 | 0.96 | a | 0.94 | 0.81 | 1.34 | 0.29 | 0.49 | 0.26 | 1.38 | 0.86 | a | 10.57 | |||||||||||
1998 | 2.38 | c | 1.38 | 0.91 | 1.04 | 4.22 | 0.40 | 0.56 | 0.05 | 1.66 | 0.06 | ----- | z | 1.44 | 14.10 | a | ||||||||||
1999 | 3.03 | 2.12 | 1.16 | 0.53 | 0.63 | 0.76 | 0.00 | 0.41 | 0.00 | 0.39 | 0.44 | 0.64 | 10.11 | |||||||||||||
2000 | 1.97 | 1.90 | 1.26 | 0.96 | 0.54 | 0.20 | 0.00 | 0.00 | 0.82 | 2.07 | 0.44 | 0.17 | b | 10.33 | ||||||||||||
2001 | 1.95 | 0.46 | 0.87 | 1.47 | 0.33 | 0.33 | 0.45 | 0.00 | 0.14 | 0.50 | 1.06 | 0.80 | 8.36 | |||||||||||||
2002 | 0.55 | 0.24 | a | 0.62 | a | 0.88 | 0.09 | 0.05 | 0.13 | 0.09 | 0.11 | 0.20 | 0.29 | 1.53 | 4.78 | |||||||||||
2003 | 1.60 | 0.65 | 0.61 | 0.72 | 1.55 | 0.30 | 0.31 | 0.49 | 0.04 | 0.08 | 0.77 | 1.51 | 8.63 | |||||||||||||
2004 | 1.78 | 1.26 | 0.04 | 0.46 | 1.57 | 0.34 | 0.17 | 0.43 | 0.61 | 1.72 | 1.00 | 0.54 | 9.92 | |||||||||||||
2005 | 0.21 | 0.12 | 0.92 | 1.13 | 3.28 | 0.83 | 0.09 | 0.02 | 0.16 | 1.08 | 1.61 | 3.06 | a | 12.51 | ||||||||||||
2006 | 0.80 | d | 0.33 | 2.02 | 1.95 | 0.88 | 1.03 | 0.00 | 0.36 | 0.53 | 0.32 | 0.79 | 1.59 | 10.60 | ||||||||||||
2007 | 0.10 | 0.59 | 0.02 | 1.14 | 0.28 | 0.83 | 0.01 | 0.11 | 0.93 | 0.74 | 0.98 | 1.02 | 6.75 | |||||||||||||
2008 | 0.52 | 0.27 | 0.75 | 0.08 | 0.41 | 0.31 | 0.23 | 0.09 | 1.10 | 0.40 | 0.70 | 0.57 | 5.43 | |||||||||||||
2009 | 0.54 | d | 0.22 | 0.63 | 0.29 | 1.03 | 1.84 | 0.16 | 0.64 | 0.00 | 0.94 | 0.55 | 1.37 | 8.21 | ||||||||||||
2010 | 1.56 | 0.79 | 0.38 | 0.77 | 0.73 | 1.51 | 0.12 | 0.37 | 0.01 | 1.19 | 0.80 | 2.59 | 10.82 | |||||||||||||
2011 | 0.72 | 0.20 | 1.95 | 0.77 | 1.87 | 0.64 | 0.01 | 0.00 | 0.12 | 1.31 | 0.39 | 0.34 | 8.32 | |||||||||||||
2012 | 0.97 | 0.07 | 1.21 | 1.10 | 0.66 | 0.37 | n | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 4.01 | g | |||||
2013 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
2014 | ----- | z | ----- | z | 0.13 | y | 0.75 | r | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
2015 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
2016 | ----- | z | ----- | z | ----- | z | ----- | z | 1.20 | 0.37 | 0.69 | 0.03 | 0.68 | 0.73 | 0.35 | d | 1.58 | e | 5.63 | d | ||||||
2017 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
2018 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.52 | 0.20 | v | 0.52 | k | |
2019 | ----- | z | ----- | z | ----- | z | ----- | z | 3.18 | 0.22 | ----- | z | ----- | z | ----- | z | 0.59 | 0.04 | 0.81 | f | 4.03 | h | ||||
2020 | 1.45 | S | 0.36 | b | 0.46 | 0.50 | b | 3.08 | a | 3.06 | 0.11 | b | 0.06 | 0.05 | a | 0.47 | 1.26 | 0.37 | 11.23 | |||||||
2021 | ----- | z | ----- | z | 0.34 | c | 0.52 | d | 0.99 | e | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 1.85 | i |
2022 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 2.47 | 0.00 | 0.17 | f | 0.03 | 0.41 | b | 0.74 | c | 1.66 | b | 5.31 | f | |||
2023 | 0.92 | i | 0.02 | f | 1.52 | 0.61 | 1.08 | a | 1.26 | a | 0.00 | 1.92 | 0.42 | 0.40 | 0.90 | d | 1.05 | n | 8.11 | c | ||||||
2024 | 1.81 | g | 1.51 | f | 0.30 | q | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 1.28 | 0.87 | 0.96 | 0.86 | 1.08 | 0.87 | 0.21 | 0.36 | 0.51 | 0.76 | 1.07 | 1.22 | 9.84 | |||||||||||||
S.D. | 0.85 | 0.59 | 0.67 | 0.58 | 0.87 | 0.76 | 0.29 | 0.56 | 0.67 | 0.62 | 0.70 | 0.75 | 2.89 | |||||||||||||
SKEW | 1.64 | 0.64 | 0.92 | 1.30 | 1.41 | 1.14 | 2.40 | 2.90 | 2.22 | 1.17 | 0.78 | 0.46 | 0.34 | |||||||||||||
MAX | 5.23 | 2.74 | 3.05 | 3.36 | 4.22 | 3.06 | 1.49 | 3.58 | 3.39 | 3.06 | 2.98 | 3.06 | 18.88 | |||||||||||||
MIN | 0.00 | 0.02 | 0.01 | 0.00 | 0.00 | 0.02 | 0.00 | 0.00 | 0.00 | 0.00 | 0.03 | 0.05 | 3.27 | |||||||||||||
YRS | 90 | 89 | 93 | 92 | 95 | 93 | 91 | 92 | 92 | 93 | 93 | 91 | 79 |