YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1945 | ----- | z | ----- | z | ----- | z | 1.09 | 0.47 | 0.87 | 3.10 | 5.15 | 0.47 | 0.55 | 0.14 | 0.29 | 12.13 | c | |||||||||
1946 | 0.68 | 0.06 | 1.63 | 0.86 | 0.86 | 2.25 | 0.32 | 1.94 | 0.01 | 1.60 | 4.21 | 0.01 | 14.43 | |||||||||||||
1947 | 0.24 | 0.35 | 1.00 | 1.47 | 3.41 | 4.82 | 0.87 | 1.08 | 0.22 | 0.15 | 0.07 | 0.81 | 14.49 | |||||||||||||
1948 | 0.79 | 0.62 | 1.21 | 0.77 | 1.52 | 4.47 | 0.55 | 2.01 | 0.17 | 0.07 | 0.49 | 0.00 | 12.67 | |||||||||||||
1949 | 0.45 | 0.10 | 0.68 | 1.09 | 2.40 | 3.14 | 2.94 | 0.48 | 0.36 | 0.87 | 0.01 | 0.00 | 12.52 | |||||||||||||
1950 | 0.02 | 0.07 | 0.38 | 0.54 | 1.59 | 0.93 | 1.74 | 2.10 | 2.71 | 0.00 | 0.09 | 0.11 | 10.28 | |||||||||||||
1951 | 0.63 | 0.11 | 0.19 | 0.54 | 2.25 | 2.70 | 1.41 | 1.26 | 0.08 | 0.65 | 0.39 | 0.41 | 10.62 | |||||||||||||
1952 | 0.17 | 0.20 | 0.56 | 1.58 | 0.96 | 0.36 | 0.12 | 0.47 | 2.63 | 0.00 | 1.44 | 0.36 | 8.85 | |||||||||||||
1953 | 0.39 | 0.11 | 1.83 | 1.61 | 3.79 | 0.26 | 1.20 | 3.67 | 0.08 | 0.61 | 1.69 | 0.56 | 15.80 | |||||||||||||
1954 | 0.20 | 0.16 | 0.91 | 0.25 | 1.79 | 0.19 | 2.21 | 1.28 | 0.35 | 1.61 | 0.05 | 0.33 | 9.33 | |||||||||||||
1955 | 0.14 | 0.42 | 0.17 | 0.43 | 4.74 | 0.69 | 0.80 | 2.09 | 1.26 | 0.10 | 0.23 | 0.07 | 11.14 | |||||||||||||
1956 | 0.30 | 0.35 | 0.55 | 1.51 | 1.11 | 0.54 | 0.87 | 1.22 | 0.01 | 0.13 | 0.38 | 0.04 | 7.01 | |||||||||||||
1957 | 0.13 | 0.04 | 0.79 | 4.34 | 2.45 | 1.70 | 2.27 | 0.52 | 0.73 | 2.24 | 1.74 | 0.02 | 16.97 | |||||||||||||
1958 | 0.39 | 0.18 | 0.63 | 0.66 | 3.57 | 0.51 | 3.90 | 0.62 | 0.42 | 0.85 | 0.44 | 0.13 | 12.30 | |||||||||||||
1959 | 0.89 | 0.22 | 0.40 | 0.72 | 1.61 | 0.04 | 1.26 | 0.43 | 1.33 | 1.33 | 0.21 | 0.00 | 8.44 | |||||||||||||
1960 | 0.85 | 1.43 | 0.14 | 2.72 | 0.33 | 0.93 | 1.32 | 0.27 | 1.05 | 2.31 | 0.10 | 0.91 | 12.36 | |||||||||||||
1961 | 0.02 | 0.60 | 0.92 | 0.24 | 1.53 | 1.55 | 2.54 | 2.05 | 0.60 | 0.14 | 0.36 | 0.28 | 10.83 | |||||||||||||
1962 | 0.81 | 0.03 | 0.22 | 0.50 | 2.80 | 0.67 | 2.53 | 0.07 | 0.26 | 0.21 | 0.64 | 0.07 | 8.81 | |||||||||||||
1963 | 0.27 | a | 0.13 | 0.62 | 0.00 | 0.51 | 1.03 | 1.45 | 3.02 | 0.98 | 0.16 | 0.28 | 0.37 | 8.82 | ||||||||||||
1964 | 0.27 | 0.42 | 0.14 | 0.56 | 2.08 | 0.00 | 1.02 | 0.94 | 0.75 | 0.05 | 0.31 | 0.14 | 6.68 | |||||||||||||
1965 | 0.29 | 0.23 | 0.56 | 0.22 | 0.99 | 3.31 | 4.32 | 1.90 | 0.93 | 2.01 | 0.02 | 0.51 | 15.29 | |||||||||||||
1966 | 0.43 | 0.28 | 0.00 | 1.28 | 0.02 | 0.40 | 5.54 | 0.79 | 4.26 | 0.55 | 0.00 | 0.12 | 13.67 | |||||||||||||
1967 | 0.20 | 0.00 | 0.11 | 0.23 | 2.82 | 0.82 | 2.47 | 0.66 | 0.51 | 0.54 | 0.26 | 0.50 | 9.12 | |||||||||||||
1968 | 0.08 | 0.20 | 0.29 | 0.33 | 1.24 | 0.87 | 1.67 | 1.56 | 0.46 | 0.23 | 0.20 | 0.34 | 7.47 | |||||||||||||
1969 | 0.01 | 0.18 | 0.68 | 1.67 | 1.90 | 1.28 | 2.77 | 2.75 | 0.67 | 1.49 | 0.27 | 0.31 | 13.98 | |||||||||||||
1970 | 0.06 | 0.00 | 0.65 | 1.22 | 0.30 | 1.81 | 3.10 | 0.21 | 1.11 | 1.22 | 0.62 | 0.00 | 10.30 | |||||||||||||
1971 | 0.19 | 0.21 | 0.26 | 0.72 | 3.06 | 0.80 | 2.43 | 1.85 | 0.81 | 0.40 | 0.87 | 0.13 | 11.73 | |||||||||||||
1972 | 0.34 | 0.11 | 0.18 | 0.61 | 2.42 | 2.63 | 0.87 | 1.56 | 0.56 | 0.57 | 1.53 | 0.45 | 11.83 | |||||||||||||
1973 | 0.27 | 0.06 | 3.45 | 1.07 | 1.44 | 0.51 | 1.67 | 0.49 | 2.03 | 0.42 | 0.41 | 0.75 | 12.57 | |||||||||||||
1974 | 0.18 | 0.68 | 0.63 | 1.06 | 1.45 | 0.61 | 0.91 | 0.70 | 0.12 | 1.09 | 0.35 | 0.24 | 8.02 | |||||||||||||
1975 | 0.16 | 0.21 | 0.22 | 0.48 | 0.70 | 1.07 | 1.28 | 0.49 | 0.42 | 0.00 | 0.92 | 0.05 | 6.00 | |||||||||||||
1976 | 0.08 | 0.22 | 0.50 | 1.99 | 0.55 | 0.20 | 2.64 | 1.55 | 0.88 | 1.06 | 0.32 | 0.01 | 10.00 | |||||||||||||
1977 | 0.03 | 0.25 | 0.07 | 1.66 | 1.65 | 1.73 | 4.12 | 4.25 | 0.11 | 0.07 | 0.05 | 0.12 | 14.11 | |||||||||||||
1978 | 0.26 | 0.44 | 0.22 | 0.24 | 2.29 | 1.51 | 1.72 | 2.77 | 0.11 | 0.35 | 0.22 | 0.24 | 10.37 | |||||||||||||
1979 | 0.47 | 0.06 | 1.15 | 0.81 | 1.72 | 3.33 | 3.63 | 2.07 | 0.85 | 0.64 | 0.36 | 0.72 | 15.81 | |||||||||||||
1980 | 0.73 | 0.18 | 1.94 | 2.49 | 1.86 | 0.94 | 1.48 | 1.14 | 0.93 | 0.14 | 0.30 | 0.00 | 12.13 | |||||||||||||
1981 | 0.06 | 0.04 | 0.99 | 0.78 | 1.20 | 0.20 | 1.53 | 1.90 | 0.55 | 0.10 | 0.16 | 0.16 | 7.67 | |||||||||||||
1982 | 0.05 | 0.68 | 0.40 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.15 | 0.01 | 0.51 | 1.80 | f | ||||||
1983 | 0.47 | 0.21 | 1.52 | 2.47 | 1.61 | 1.91 | 0.14 | 0.45 | 0.05 | 0.14 | 0.21 | 0.51 | 9.69 | |||||||||||||
1984 | 0.10 | 0.24 | 1.44 | 1.34 | 1.87 | 1.41 | 1.80 | 1.59 | 0.51 | 1.70 | 0.10 | 0.49 | 12.59 | |||||||||||||
1985 | 0.88 | 0.58 | 0.59 | 1.67 | 2.95 | 0.34 | 2.58 | 1.22 | 0.67 | 1.26 | 0.54 | 0.16 | 13.44 | |||||||||||||
1986 | 0.16 | 0.07 | 0.12 | 0.26 | 0.55 | 1.68 | 0.91 | 3.66 | 1.67 | 1.51 | 0.60 | 0.09 | 11.28 | |||||||||||||
1987 | 0.22 | 1.10 | 0.23 | 0.23 | 3.69 | 1.59 | 0.49 | 1.47 | 1.73 | 0.06 | 0.20 | 0.50 | 11.51 | |||||||||||||
1988 | 0.29 | 0.42 | 0.53 | 1.82 | 1.80 | 1.32 | 1.08 | 0.09 | 0.80 | 0.02 | 0.02 | 0.30 | 8.49 | |||||||||||||
1989 | 0.25 | 0.33 | 0.41 | 0.47 | 1.62 | 1.81 | 0.42 | 1.21 | 1.27 | 0.14 | 0.02 | 0.32 | 8.27 | |||||||||||||
1990 | 0.86 | 0.58 | 0.89 | 0.56 | 2.60 | 0.53 | 5.14 | 1.46 | 1.86 | 1.58 | 0.78 | 0.56 | 17.40 | |||||||||||||
1991 | 0.46 | 0.07 | a | 1.02 | 1.35 | 0.48 | 2.14 | 2.97 | 0.77 | 1.52 | 0.75 | 1.78 | 0.52 | 13.83 | ||||||||||||
1992 | 0.41 | 0.47 | 0.51 | 0.28 | 0.69 | 2.90 | 2.79 | 1.50 | 0.11 | 0.66 | 1.74 | 0.33 | 12.39 | |||||||||||||
1993 | 0.62 | 1.39 | 1.66 | 1.63 | 2.73 | 0.23 | 2.26 | 1.81 | 0.33 | 0.75 | 0.91 | 0.03 | 14.35 | |||||||||||||
1994 | 0.45 | 0.02 | 0.87 | 2.06 | 1.52 | 1.97 | 0.51 | 1.91 | 1.21 | 0.98 | 0.43 | 0.08 | 12.01 | |||||||||||||
1995 | 0.22 | 0.26 | 1.73 | 2.14 | 4.75 | 2.10 | 1.79 | 1.14 | 0.74 | 0.00 | 0.04 | 0.04 | 14.95 | |||||||||||||
1996 | 0.18 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.18 | k | |
1997 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1998 | ----- | z | ----- | z | ----- | z | 0.76 | 1.50 | 0.53 | a | 5.62 | 2.34 | 0.98 | 1.15 | c | 0.86 | 0.19 | 13.93 | c | |||||||
1999 | 0.38 | 0.15 | 1.34 | 4.66 | 2.02 | 1.32 | 4.09 | 2.01 | 0.43 | 0.44 | 0.15 | 0.04 | 17.03 | |||||||||||||
2000 | 0.31 | 0.28 | 1.65 | 0.90 | 0.96 | 0.64 | 1.62 | 0.77 | 0.46 | 1.26 | 0.05 | 0.06 | 8.96 | |||||||||||||
2001 | 0.33 | 0.03 | 0.29 | 1.19 | 4.23 | 0.63 | 2.78 | 0.69 | 1.22 | 0.02 | 0.69 | 0.36 | 12.46 | |||||||||||||
2002 | 0.20 | 0.03 | 0.07 | 0.19 | 0.07 | 0.54 | 0.05 | 0.41 | 0.95 | 0.60 | 0.05 | 0.21 | 3.37 | |||||||||||||
2003 | 0.01 | 0.28 | 1.65 | 1.45 | 0.99 | 2.98 | 0.41 | 0.26 | 0.39 | 0.13 | 0.05 | 0.10 | 8.70 | |||||||||||||
2004 | 0.13 | 0.33 | 0.24 | 3.62 | 0.04 | 2.08 | 1.31 | 4.09 | 0.55 | 0.34 | 0.75 | 0.03 | 13.51 | |||||||||||||
2005 | 0.16 | 0.22 | 0.95 | 0.52 | 0.52 | 1.31 | 0.86 | 0.98 | a | 0.17 | 1.42 | 0.06 | 0.09 | 7.26 | ||||||||||||
2006 | 0.28 | 0.01 | 0.29 | 0.30 | 1.68 | 0.72 | 3.26 | 3.12 | 2.42 | 1.78 | 0.03 | 1.40 | 15.29 | |||||||||||||
2007 | 0.11 | 0.22 | 0.49 | 1.86 | 1.26 | 0.78 | 0.08 | 1.04 | 0.00 | 0.00 | 0.00 | 0.00 | 5.84 | |||||||||||||
2008 | 0.09 | 0.11 | 0.28 | 0.74 | 0.57 | 0.73 | 0.72 | 3.08 | 0.26 | 3.38 | 0.07 | 0.13 | 10.16 | |||||||||||||
2009 | 0.00 | 0.45 | 0.23 | 0.92 | 0.78 | 1.90 | 1.38 | 0.04 | 0.65 | 2.84 | 0.23 | 0.14 | 9.56 | |||||||||||||
2010 | 0.32 | 0.85 | 1.44 | 1.29 | 0.56 | 1.12 | 3.41 | 2.03 | 0.43 | 0.04 | 0.13 | 0.30 | 11.92 | |||||||||||||
2011 | 0.11 | 0.06 | 0.53 | 0.46 | 0.53 | 1.68 | 1.07 | 1.40 | 0.54 | 0.21 | 0.60 | 0.17 | a | 7.36 | ||||||||||||
2012 | 0.01 | 0.10 | 0.22 | 1.73 | 0.75 | 0.09 | 1.05 | 0.16 | 1.15 | 0.26 | 0.00 | 0.01 | 5.53 | |||||||||||||
2013 | 0.02 | 0.09 | 0.24 | 0.10 | 0.22 | 2.00 | 0.89 | 0.45 | 0.71 | 0.26 | 0.06 | 0.05 | 5.09 | |||||||||||||
2014 | 0.10 | 0.21 | 0.44 | 1.16 | 0.77 | 1.21 | 4.65 | 2.18 | 1.02 | 1.64 | 0.06 | 0.47 | 13.91 | |||||||||||||
2015 | 0.09 | 0.21 | 0.14 | 0.72 | 7.38 | 1.35 | 1.40 | 1.87 | 0.46 | 1.34 | 0.23 | 0.21 | 15.40 | |||||||||||||
2016 | 0.04 | 0.09 | 0.30 | 0.67 | 1.73 | 2.53 | 3.40 | 0.95 | 0.32 | 0.00 | 0.64 | 0.12 | 10.79 | |||||||||||||
2017 | 0.00 | c | 0.00 | 0.00 | d | 1.38 | e | 5.48 | 0.39 | 5.33 | 1.10 | 3.38 | 0.33 | 0.03 | 0.02 | 17.44 | ||||||||||
2018 | 0.14 | 0.13 | 0.48 | 0.57 | 0.70 | 0.12 | 2.91 | h | 1.20 | 1.55 | 2.92 | 0.17 | 0.02 | 8.00 | a | |||||||||||
2019 | 0.62 | 0.29 | 0.93 | 0.11 | 0.91 | 0.75 | 1.96 | 0.20 | 0.16 | 0.53 | 0.42 | 0.24 | 7.12 | |||||||||||||
2020 | 0.05 | 0.40 | 0.19 | 0.11 | 0.48 | 0.96 | 3.14 | 0.38 | 0.68 | 0.02 | 0.12 | 0.15 | 6.68 | |||||||||||||
2021 | 0.23 | 0.09 | 0.82 | 0.11 | 5.37 | 0.37 | 0.49 | 0.76 | 1.90 | 0.44 | 0.02 | 0.04 | 10.64 | |||||||||||||
2022 | 0.33 | 0.00 | 0.57 | a | 0.13 | 1.31 | a | 0.67 | 2.30 | 2.32 | 0.64 | 0.00 | 0.02 | 0.02 | 8.31 | |||||||||||
2023 | 0.96 | 0.35 | 0.11 | 2.12 | 2.82 | 1.73 | 3.60 | 1.46 | 1.02 | 0.00 | 0.00 | 0.34 | 14.51 | |||||||||||||
2024 | 0.24 | 1.09 | 0.88 | 0.02 | e | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 2.23 | h | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.29 | 0.28 | 0.68 | 1.07 | 1.79 | 1.30 | 2.03 | 1.46 | 0.85 | 0.72 | 0.43 | 0.25 | 11.09 | |||||||||||||
S.D. | 0.25 | 0.30 | 0.60 | 0.92 | 1.41 | 1.01 | 1.39 | 1.06 | 0.79 | 0.78 | 0.63 | 0.25 | 3.26 | |||||||||||||
SKEW | 1.09 | 2.06 | 1.78 | 1.69 | 1.50 | 1.25 | 0.78 | 1.13 | 1.94 | 1.34 | 3.45 | 1.77 | -0.03 | |||||||||||||
MAX | 0.96 | 1.43 | 3.45 | 4.66 | 7.38 | 4.82 | 5.62 | 5.15 | 4.26 | 3.38 | 4.21 | 1.40 | 17.44 | |||||||||||||
MIN | 0.00 | 0.00 | 0.00 | 0.00 | 0.02 | 0.00 | 0.05 | 0.04 | 0.00 | 0.00 | 0.00 | 0.00 | 3.37 | |||||||||||||
YRS | 77 | 76 | 76 | 77 | 76 | 76 | 75 | 76 | 76 | 77 | 77 | 77 | 73 |