YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1948 | ----- | z | ----- | z | ----- | z | ----- | z | 2.55 | 2.10 | 0.46 | 0.59 | 1.18 | 0.18 | 0.90 | 2.00 | 9.96 | d | ||||||||
1949 | 0.37 | 0.40 | 1.02 | 0.08 | 0.60 | 0.00 | 0.00 | 0.00 | 0.19 | 0.15 | 1.36 | 0.22 | 4.39 | |||||||||||||
1950 | 2.00 | 0.31 | 0.17 | 0.26 | 0.10 | 2.74 | 0.00 | 0.08 | 0.08 | c | 2.75 | 0.91 | 1.25 | 10.65 | ||||||||||||
1951 | 0.94 | 1.05 | 0.73 | 0.24 | 1.36 | 0.04 | 0.24 | 0.14 | 0.24 | 0.95 | 1.49 | 1.49 | 8.91 | |||||||||||||
1952 | 0.58 | 1.28 | 0.24 | 0.17 | 0.28 | 2.77 | 0.03 | 0.09 | 0.94 | 0.00 | 0.03 | 1.67 | 8.08 | |||||||||||||
1953 | 1.44 | 1.73 | 0.58 | 0.32 | 1.66 | 1.64 | 0.00 | 1.08 | 0.26 | 0.31 | 1.39 | 1.07 | 11.48 | |||||||||||||
1954 | 1.94 | 0.36 | 0.40 | 0.22 | 0.62 | 1.30 | 0.00 | 0.56 | 0.72 | 0.20 | 0.30 | 0.19 | 6.81 | |||||||||||||
1955 | 0.41 | 0.13 | 0.39 | 0.67 | 0.37 | 0.30 | 0.41 | 0.00 | 0.22 | 0.36 | 1.34 | 3.21 | 7.81 | |||||||||||||
1956 | 2.72 | 1.47 | 0.19 | 0.18 | 4.25 | 0.60 | 1.02 | 0.03 | 0.20 | 1.40 | 0.34 | 0.40 | 12.80 | |||||||||||||
1957 | 0.80 | 0.67 | 1.85 | 0.19 | 1.86 | 0.29 | 0.16 | 0.20 | 0.84 | 1.09 | 0.17 | 1.57 | 9.69 | |||||||||||||
1958 | 1.34 | 1.19 | 0.41 | 0.43 | 1.47 | 1.75 | 0.14 | 0.18 | 0.11 | 0.02 | 1.46 | 0.98 | 9.48 | |||||||||||||
1959 | 1.01 | 0.96 | 0.11 | 0.05 | 0.76 | 0.54 | 0.19 | 0.01 | 0.31 | 0.47 | 0.19 | 0.33 | 4.93 | |||||||||||||
1960 | 1.93 | 1.15 | 1.94 | 0.47 | 0.58 | 0.00 | 0.12 | 0.00 | 0.15 | 0.44 | 1.59 | 0.69 | 9.06 | |||||||||||||
1961 | 0.27 | 1.46 | 1.01 | 0.35 | 0.94 | 0.52 | 0.03 | 0.85 | 0.01 | 0.67 | 2.76 | 1.03 | 9.90 | |||||||||||||
1962 | 1.01 | 0.49 | 0.96 | 0.19 | 2.00 | 0.05 | 0.00 | 0.98 | 0.13 | 1.91 | 0.90 | 0.92 | 9.54 | |||||||||||||
1963 | 1.37 | 0.49 | 0.38 | 1.16 | 1.26 | 1.47 | 0.15 | 0.26 | 0.81 | 0.41 | 1.47 | 0.87 | 10.10 | |||||||||||||
1964 | 1.04 | 0.00 | 0.32 | 0.11 | 0.03 | 0.85 | 0.95 | 0.06 | 0.05 | 0.44 | 0.97 | 5.48 | 10.30 | |||||||||||||
1965 | 1.41 | 0.05 | 0.01 | 0.58 | 0.52 | 1.58 | 0.96 | 1.61 | 0.03 | 0.27 | 1.50 | 0.07 | 8.59 | |||||||||||||
1966 | 1.47 | 0.61 | 0.52 | 0.08 | 0.08 | 0.60 | 1.29 | 0.00 | 0.99 | 0.21 | 1.99 | 1.56 | 9.40 | |||||||||||||
1967 | 1.69 | 0.06 | 0.52 | 1.54 | 0.19 | 0.80 | 0.00 | 0.02 | 0.23 | 1.00 | 0.24 | 0.29 | 6.58 | |||||||||||||
1968 | 0.35 | 0.78 | 0.01 | 0.00 | 0.90 | 0.16 | 0.11 | 1.59 | 0.48 | 0.35 | 2.01 | 1.23 | 7.97 | |||||||||||||
1969 | 1.62 | 0.46 | 0.52 | 0.21 | 0.81 | 3.87 | 0.09 | 0.00 | 0.79 | 0.83 | 0.16 | 0.99 | 10.35 | |||||||||||||
1970 | 3.07 | 0.70 | 0.41 | 0.54 | 0.30 | 0.65 | 0.09 | 0.00 | 0.39 | 0.25 | 1.78 | 0.43 | 8.61 | |||||||||||||
1971 | 1.82 | 0.22 | 0.87 | 0.14 | 1.87 | 0.21 | 0.61 | 0.03 | 0.39 | 0.30 | 0.99 | 0.97 | 8.42 | |||||||||||||
1972 | 1.12 | 0.28 | 1.45 | 0.12 | 1.05 | 1.12 | 0.03 | 0.62 | 0.20 | 0.70 | 0.32 | 1.06 | 8.07 | |||||||||||||
1973 | 0.53 | 1.31 | 0.17 | 0.23 | 0.89 | 0.00 | 0.08 | 0.05 | 0.57 | 0.76 | 2.51 | 0.76 | 7.86 | |||||||||||||
1974 | 0.47 | 0.43 | 1.52 | 1.12 | 0.04 | 0.01 | 0.54 | 0.00 | 0.00 | 0.36 | 0.29 | 0.68 | 5.46 | |||||||||||||
1975 | 0.67 | 1.01 | 1.03 | 0.34 | 0.06 | 0.96 | 0.67 | 0.96 | 0.00 | 1.02 | 0.26 | 0.63 | 7.61 | |||||||||||||
1976 | 0.91 | 0.56 | 0.16 | 1.07 | 0.08 | 0.48 | 0.03 | 2.54 | 0.27 | 0.08 | 0.12 | 0.00 | 6.30 | |||||||||||||
1977 | 0.14 | 0.36 | 0.18 | 0.02 | 1.44 | 0.01 | 0.08 | 0.61 | 0.79 | 0.20 | 1.34 | 1.65 | 6.82 | |||||||||||||
1978 | 1.26 | 0.39 | 1.06 | 1.64 | 0.20 | 0.77 | 0.44 | 0.50 | 0.23 | 0.03 | 1.14 | 0.65 | 8.31 | |||||||||||||
1979 | 1.35 | 0.73 | 1.04 | 0.48 | 0.26 | 0.25 | 0.06 | 1.36 | 0.15 | 0.81 | 1.15 | 0.12 | 7.76 | |||||||||||||
1980 | 1.98 | 0.68 | 0.18 | 0.90 | 0.90 | 1.34 | 0.19 | 0.00 | 0.65 | 0.72 | 0.92 | 0.72 | 9.18 | |||||||||||||
1981 | 0.72 | 0.65 | 0.68 | 0.48 | 1.28 | 0.46 | 0.13 | 0.00 | 1.05 | 0.27 | 2.38 | 3.57 | 11.67 | |||||||||||||
1982 | 1.09 | 0.44 | 0.42 | 0.48 | 0.68 | 2.47 | 1.02 | 0.58 | 1.25 | 0.91 | 0.31 | 1.23 | 10.88 | |||||||||||||
1983 | 0.84 | 1.20 | 1.39 | 0.57 | 0.83 | 0.44 | 0.76 | 0.75 | 0.01 | 1.00 | 1.34 | 3.28 | 12.41 | |||||||||||||
1984 | 0.13 | 0.76 | 1.20 | 0.86 | 0.21 | 1.05 | 0.26 | 0.34 | 0.34 | 1.11 | 3.15 | 0.48 | 9.89 | |||||||||||||
1985 | 0.14 | 0.20 | 0.16 | 0.17 | 1.01 | 0.23 | 0.17 | 0.17 | 0.71 | 0.37 | 0.78 | 0.93 | 5.04 | |||||||||||||
1986 | 1.09 | 2.37 | 0.47 | 0.02 | 0.31 | 0.09 | 0.38 | 0.00 | 1.10 | 0.55 | 0.73 | 0.46 | 7.57 | |||||||||||||
1987 | 0.78 | 0.77 | 1.07 | 0.55 | 1.30 | 0.13 | 3.73 | 0.08 | 0.00 | 0.00 | 0.26 | 1.62 | 10.29 | |||||||||||||
1988 | 0.92 | 0.28 | 0.25 | 1.17 | 0.38 | 1.01 | 0.00 | 0.33 | 0.13 | 0.00 | 2.36 | 0.52 | 7.35 | |||||||||||||
1989 | 1.19 | 0.35 | 1.65 | 1.75 | 0.53 | 0.11 | 0.13 | 1.33 | 0.21 | 0.26 | 0.26 | 0.10 | 7.87 | |||||||||||||
1990 | 1.40 | 0.00 | 0.95 | 0.43 | 1.08 | 0.08 | c | ----- | z | ----- | z | ----- | z | ----- | z | 0.48 | 0.34 | 4.76 | d | |||||||
1991 | 0.40 | 0.10 | 1.03 | 0.19 | 1.30 | 1.14 | 0.30 | 0.19 | 0.04 | 0.45 | 1.22 | 0.59 | 6.95 | |||||||||||||
1992 | 0.27 | 0.27 | 0.19 | 1.13 | 0.67 | 0.75 | 0.80 | 0.00 | 0.13 | c | 1.17 | 0.50 | 1.85 | 7.73 | ||||||||||||
1993 | 1.55 | 0.95 | 1.56 | 0.60 | 2.33 | 0.78 | 0.73 | a | 0.89 | 0.00 | 0.52 | 0.23 | 0.29 | 10.43 | ||||||||||||
1994 | 0.18 | 0.62 | 0.36 | 0.77 | 1.41 | 0.28 | 0.43 | 0.00 | d | 0.64 | 0.53 | 0.51 | 0.07 | 5.80 | ||||||||||||
1995 | 1.96 | 0.60 | 0.51 | 1.26 | 0.97 | 1.70 | 1.20 | 0.06 | 0.29 | 0.22 | 0.90 | 1.04 | s | 9.67 | a | |||||||||||
1996 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.12 | ----- | z | ----- | z | ----- | z | 0.12 | k | |
1997 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 1.70 | 1.49 | 0.62 | 0.92 | 0.64 | 0.38 | 0.17 | 5.92 | e | |||||||
1998 | 0.73 | i | 0.60 | a | 0.73 | b | 0.55 | 4.62 | 0.36 | 1.70 | 0.77 | 0.32 | 0.46 | 2.34 | 0.64 | b | 13.09 | a | ||||||||
1999 | 0.92 | 1.26 | d | 0.53 | 0.11 | 0.08 | 0.24 | 0.02 | 2.29 | 0.00 | 1.08 | 0.47 | a | 0.38 | 7.38 | |||||||||||
2000 | 1.50 | b | 1.61 | b | 1.05 | a | 0.75 | 0.38 | 0.07 | 0.74 | 0.00 | 0.32 | 0.83 | 0.47 | 0.49 | 8.21 | ||||||||||
2001 | 0.22 | 0.48 | 0.62 | 1.30 | 0.02 | 0.60 | 0.49 | 0.14 | 0.54 | 0.67 | 1.31 | 1.28 | 7.67 | |||||||||||||
2002 | 0.67 | 0.15 | 0.50 | 0.39 | 0.34 | 0.05 | 0.22 | 0.23 | 0.12 | 0.33 | 0.05 | 0.97 | 4.02 | |||||||||||||
2003 | 1.36 | 0.42 | 0.61 | 0.92 | 2.19 | 0.04 | 0.19 | 0.32 | 0.56 | 0.38 | 0.80 | 1.71 | 9.50 | |||||||||||||
2004 | 1.29 | 1.94 | 0.14 | 0.56 | 1.60 | 0.51 | 0.06 | 0.82 | 0.07 | 0.75 | 0.42 | 2.05 | 10.21 | |||||||||||||
2005 | 0.31 | 0.55 | 0.68 | 1.99 | 2.55 | 0.23 | 0.29 | 0.02 | 0.62 | 1.06 | 1.67 | 1.41 | 11.38 | |||||||||||||
2006 | 1.46 | 0.48 | 0.97 | 0.89 | 0.79 | 2.04 | 0.07 | 0.22 | 0.27 | 0.34 | 1.00 | 1.42 | 9.95 | |||||||||||||
2007 | 0.48 | 0.17 | 0.11 | 0.33 | 0.07 | 0.40 | 0.15 | 0.74 | 0.34 | 0.66 | 0.25 | 0.08 | 3.78 | |||||||||||||
2008 | 0.22 | 0.04 | 0.03 | 0.12 | 0.26 | 0.03 | 0.06 | 0.99 | 0.11 | 0.81 | 0.59 | 0.81 | 4.07 | |||||||||||||
2009 | 0.36 | 0.33 | 0.68 | 0.69 | 0.69 | 1.42 | 0.06 | 1.31 | 0.00 | 1.22 | 0.54 | 0.36 | 7.66 | |||||||||||||
2010 | 1.43 | 0.37 | 0.46 | 1.40 | 1.14 | 0.53 | 0.00 | 0.09 | 1.72 | 1.64 | 0.71 | 2.05 | 11.54 | |||||||||||||
2011 | 0.47 | 1.14 | 0.40 | 0.28 | 1.11 | 0.98 | 0.60 | 0.36 | 0.00 | 0.31 | 0.21 | 0.81 | 6.67 | |||||||||||||
2012 | 1.51 | 0.70 | 1.23 | 1.19 | 1.14 | 1.84 | 0.03 | 0.01 | 0.04 | 1.35 | 0.91 | 1.67 | 11.62 | |||||||||||||
2013 | 0.41 | 0.01 | 0.33 | 0.10 | 0.61 | 0.46 | 0.00 | 1.16 | 1.01 | 0.14 | 0.20 | 0.37 | 4.80 | |||||||||||||
2014 | 0.52 | 1.39 | 0.60 | 0.58 | 0.36 | 0.30 | 0.29 | 0.96 | 0.42 | 0.66 | 2.04 | 1.58 | 9.70 | |||||||||||||
2015 | 0.28 | 0.70 | 0.40 | 0.15 | 2.39 | 0.11 | 0.44 | 0.02 | 0.07 | 0.80 | 0.89 | 1.88 | 8.13 | |||||||||||||
2016 | 1.22 | 0.12 | 0.57 | 0.29 | 1.98 | 0.65 | 0.64 | 0.02 | 0.05 | 1.74 | 0.27 | 1.74 | 9.29 | |||||||||||||
2017 | 1.62 | 1.14 | 0.57 | 0.89 | 0.17 | 0.36 | 0.00 | 0.29 | 0.43 | 0.52 | 0.47 | 0.12 | 6.58 | |||||||||||||
2018 | 0.17 | 0.31 | 0.73 | 0.69 | 0.93 | 0.61 | 0.00 | 0.00 | 0.04 | 0.29 | 0.43 | 0.65 | 4.85 | |||||||||||||
2019 | 1.03 | 2.31 | 0.59 | 1.34 | 1.61 | 0.36 | 0.22 | 0.00 | a | 1.53 | 0.28 | 0.52 | 0.84 | 10.63 | ||||||||||||
2020 | 0.74 | 0.18 | 0.54 | 0.61 | 1.80 | 0.42 | 0.00 | 0.01 | 0.16 | 0.13 | 1.54 | 0.37 | 6.50 | |||||||||||||
2021 | 0.61 | 0.44 | 0.12 | 0.22 | 0.60 | 0.38 | 0.12 | 0.00 | 1.02 | 0.84 | 1.20 | 0.70 | 6.25 | |||||||||||||
2022 | 0.73 | 0.01 | a | 0.41 | 0.56 | 0.47 | a | 1.88 | 0.20 | 0.05 | 0.20 | 0.13 | 0.90 | 1.91 | 7.45 | |||||||||||
2023 | 0.24 | 0.09 | 0.70 | 0.33 | 2.04 | 0.01 | 0.00 | 0.05 | 0.64 | 0.32 | 0.42 | 0.68 | 5.52 | |||||||||||||
2024 | 1.69 | 1.67 | 0.19 | d | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 3.55 | i | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 1.00 | 0.67 | 0.63 | 0.57 | 1.01 | 0.76 | 0.37 | 0.42 | 0.40 | 0.61 | 0.94 | 1.05 | 8.26 | |||||||||||||
S.D. | 0.63 | 0.55 | 0.45 | 0.47 | 0.89 | 0.78 | 0.55 | 0.56 | 0.40 | 0.50 | 0.72 | 0.92 | 2.16 | |||||||||||||
SKEW | 0.70 | 1.10 | 0.94 | 1.02 | 1.69 | 1.55 | 3.51 | 1.69 | 1.19 | 1.58 | 0.97 | 2.12 | -0.13 | |||||||||||||
MAX | 3.07 | 2.37 | 1.94 | 1.99 | 4.62 | 3.87 | 3.73 | 2.54 | 1.72 | 2.75 | 3.15 | 5.48 | 12.80 | |||||||||||||
MIN | 0.13 | 0.00 | 0.01 | 0.00 | 0.02 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.03 | 0.00 | 3.78 | |||||||||||||
YRS | 73 | 74 | 74 | 73 | 74 | 75 | 74 | 74 | 75 | 74 | 75 | 74 | 70 |