YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1950 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.85 | 0.24 | 0.00 | f | 0.47 | 1.56 | i | |||
1951 | 0.32 | 0.06 | 0.12 | 1.08 | 0.35 | 0.05 | 0.08 | 2.03 | 0.34 | 0.89 | 0.15 | 0.38 | 5.85 | |||||||||||||
1952 | 0.99 | 0.05 | 0.29 | 1.64 | 1.07 | 0.22 | 0.82 | 3.98 | 2.33 | 0.00 | 0.40 | 0.10 | 11.89 | |||||||||||||
1953 | 0.03 | 0.14 | 0.87 | 0.80 | 1.39 | 1.25 | 2.72 | 1.30 | 0.00 | 1.43 | 0.72 | 0.24 | 10.89 | |||||||||||||
1954 | 0.25 | 0.05 | 0.24 | 0.18 | 1.28 | 0.05 | 1.34 | 2.84 | 1.18 | 0.22 | 0.32 | 0.11 | 8.06 | |||||||||||||
1955 | 0.45 | 0.09 | 0.06 | 0.47 | 2.65 | 0.04 | 1.23 | 2.51 | 0.18 | 0.03 | 0.20 | 0.22 | 8.13 | |||||||||||||
1956 | 0.66 | 0.13 | 0.20 | 1.08 | 1.19 | 0.15 | 0.51 | 1.09 | 0.04 | 0.17 | 0.53 | 0.19 | 5.94 | |||||||||||||
1957 | 0.37 | 0.20 | 0.53 | 2.08 | 3.83 | 0.88 | 4.62 | 2.61 | 0.00 | 0.97 | 0.84 | 0.03 | 16.96 | |||||||||||||
1958 | 0.76 | 0.30 | 1.00 | 1.12 | 0.61 | 0.71 | 0.47 | 0.94 | 0.44 | 0.72 | 0.47 | 0.21 | 7.75 | |||||||||||||
1959 | 0.44 | 0.19 | 0.79 | 1.25 | 1.63 | 0.66 | 1.98 | 2.08 | 1.26 | 2.15 | 0.12 | 0.27 | 12.82 | |||||||||||||
1960 | 0.42 | 1.08 | 0.22 | 0.70 | 0.42 | 1.47 | 2.13 | 0.26 | 0.44 | 1.48 | 0.10 | 0.45 | 9.17 | |||||||||||||
1961 | 0.21 | 0.47 | 0.52 | 0.46 | 0.46 | 0.29 | 1.51 | 2.41 | 1.47 | 0.82 | 0.39 | 0.53 | 9.54 | |||||||||||||
1962 | 0.08 | 0.30 | 0.57 | 0.36 | 0.15 | 0.59 | 1.38 | 0.30 | 1.46 | 0.59 | 0.62 | 0.15 | 6.55 | |||||||||||||
1963 | 0.77 | 0.27 | 0.24 | 0.00 | 0.35 | 0.81 | 1.66 | 2.03 | c | 0.58 | 0.41 | 0.07 | 0.14 | 7.33 | ||||||||||||
1964 | 0.05 | 0.55 | 0.70 | 0.51 | 0.90 | 0.99 | 2.43 | 2.25 | 1.81 | 0.16 | 0.82 | 0.47 | 11.64 | |||||||||||||
1965 | 0.19 | 0.51 | 1.04 | 0.36 | 0.90 | 2.64 | 2.68 | 1.47 | 3.87 | 0.97 | 0.11 | 0.38 | 15.12 | |||||||||||||
1966 | 0.43 | 0.12 | 0.05 | 0.19 | 0.32 | 0.98 | 2.32 | 2.26 | 0.11 | 0.07 | 0.06 | 0.17 | 7.08 | |||||||||||||
1967 | 0.13 | 0.61 | 0.24 | 0.96 | 2.08 | 1.29 | 2.80 | 4.22 | 1.10 | 0.60 | 0.00 | 0.91 | 14.94 | |||||||||||||
1968 | 0.08 | 0.57 | 0.51 | 0.22 | c | 1.39 | 0.05 | 5.01 | 3.52 | 1.11 | 0.46 | 0.45 | 0.07 | 13.44 | ||||||||||||
1969 | 0.04 | 0.09 | 0.64 | 0.20 | 2.20 | 4.32 | 2.18 | 2.49 | 1.15 | 2.14 | 0.11 | 0.73 | 16.29 | |||||||||||||
1970 | 0.02 | 0.01 | 1.01 | 0.56 | 0.18 | 1.29 | 1.83 | 3.25 | 2.51 | 0.85 | 0.11 | 0.00 | 11.62 | |||||||||||||
1971 | 0.01 | 0.22 | 0.12 | 0.30 | 0.48 | 0.19 | 3.74 | 1.87 | 1.37 | 1.02 | 0.48 | 0.45 | 10.25 | |||||||||||||
1972 | 0.10 | 0.05 | 0.23 | 0.05 | 0.38 | 1.23 | 0.99 | 1.29 | 1.17 | 1.55 | 0.74 | 1.12 | 8.90 | |||||||||||||
1973 | 0.03 | 0.17 | 0.57 | 1.12 | 0.62 | 0.26 | 1.37 | 0.96 | 0.77 | 0.27 | 0.05 | b | 0.63 | 6.82 | ||||||||||||
1974 | 0.86 | 0.19 | 0.46 | 0.00 | 0.10 | 0.83 | ----- | z | 1.35 | 0.40 | 1.74 | 0.05 | 0.87 | 6.85 | a | |||||||||||
1975 | 0.58 | 0.19 | 0.78 | 0.63 | 0.02 | 0.80 | 2.23 | 1.01 | 3.42 | 0.37 | 0.60 | 0.18 | 10.81 | |||||||||||||
1976 | 0.05 | 0.35 | 0.54 | 1.38 | 1.48 | 0.13 | 1.29 | 1.94 | 0.65 | 0.62 | 0.34 | 0.03 | 8.80 | |||||||||||||
1977 | 0.32 | 0.47 | 0.35 | 0.92 | 0.39 | 0.81 | 2.40 | 2.13 | 1.32 | 0.68 | 1.41 | 0.21 | 11.41 | |||||||||||||
1978 | 0.46 | 0.26 | 0.17 | 0.26 | 0.85 | 1.18 | 0.56 | 0.65 | 0.04 | 1.28 | 1.32 | 0.53 | b | 7.56 | ||||||||||||
1979 | 1.55 | 0.08 | 0.72 | 0.96 | 1.38 | 0.69 | 0.29 | 1.37 | 0.42 | ----- | z | 0.40 | 0.27 | 8.13 | a | |||||||||||
1980 | 0.26 | 0.39 | 0.97 | 1.93 | 2.43 | 0.05 | 0.87 | 0.36 | 0.43 | 0.25 | 0.01 | 0.01 | 7.96 | |||||||||||||
1981 | 0.01 | 0.04 | 2.14 | 0.02 | 0.89 | 1.05 | 1.72 | 3.09 | 0.95 | 0.51 | 0.84 | 0.50 | 11.76 | |||||||||||||
1982 | 0.14 | 0.54 | 0.51 | 0.34 | 1.18 | 0.21 | 2.87 | a | 1.71 | 2.85 | 0.14 | 0.30 | 0.52 | 11.31 | ||||||||||||
1983 | 0.11 | 0.45 | 1.46 | 0.81 | 0.35 | a | 2.26 | 1.07 | 2.17 | 0.45 | 0.33 | 0.84 | a | 0.80 | a | 11.10 | ||||||||||
1984 | 0.20 | 0.54 | 0.48 | 0.37 | 0.80 | 0.62 | 0.50 | 3.32 | 0.23 | 2.26 | 0.12 | 0.22 | 9.66 | |||||||||||||
1985 | 0.91 | 0.18 | 0.71 | 0.87 | 1.52 | 0.16 | 2.66 | 0.25 | 3.50 | 1.02 | 0.74 | 0.12 | 12.64 | |||||||||||||
1986 | 0.02 | 0.35 | 0.31 | a | 1.59 | 1.02 | 1.37 | 1.94 | 1.83 | 0.95 | 1.62 | 0.76 | 0.18 | 11.94 | ||||||||||||
1987 | 0.74 | 0.55 | 1.08 | 0.39 | 1.69 | 1.47 | 0.66 | ----- | z | ----- | z | 0.20 | ----- | z | 0.53 | a | 7.31 | c | ||||||||
1988 | 0.26 | b | ----- | z | 0.48 | u | ----- | z | ----- | z | 1.82 | 1.12 | b | 2.81 | a | 1.12 | 0.70 | 0.75 | 0.94 | 9.52 | d | |||||
1989 | 0.74 | 1.41 | 0.20 | 0.01 | 0.41 | 0.18 | 3.28 | 0.74 | 0.97 | 0.87 | 0.00 | 0.08 | b | 8.89 | ||||||||||||
1990 | 0.46 | 0.23 | 2.17 | 1.85 | 0.60 | 0.15 | 1.88 | 1.63 | b | 2.48 | 1.67 | 0.51 | 0.51 | a | 14.14 | |||||||||||
1991 | 0.15 | 0.17 | 1.05 | 1.00 | a | 1.07 | a | 1.14 | 1.64 | 3.10 | 0.69 | 0.70 | 0.71 | a | 1.13 | 12.55 | ||||||||||
1992 | 0.75 | 0.47 | 2.41 | a | 0.24 | 1.69 | 0.80 | 2.48 | 3.06 | 0.57 | 0.14 | 0.85 | 0.99 | a | 14.45 | |||||||||||
1993 | 0.60 | 0.63 | 1.39 | b | 0.95 | 2.97 | 0.13 | 0.31 | 5.14 | 1.38 | 0.84 | 0.40 | 0.56 | 15.30 | ||||||||||||
1994 | 0.96 | 0.52 | 1.22 | 1.43 | 2.44 | 1.18 | 0.22 | 3.25 | 1.21 | 2.21 | a | 1.26 | 0.17 | 16.07 | ||||||||||||
1995 | 0.19 | a | 0.03 | 1.78 | 1.86 | 2.06 | a | 2.41 | 1.33 | 1.90 | 1.07 | 0.09 | 0.36 | b | 0.14 | b | 13.22 | |||||||||
1996 | 1.28 | 0.47 | 0.67 | b | 0.66 | a | 0.28 | b | 1.23 | 0.82 | 2.51 | 1.44 | 0.46 | 1.06 | 0.07 | a | 10.95 | |||||||||
1997 | 0.58 | 1.38 | 0.33 | a | 1.81 | 1.85 | 2.14 | 2.11 | 2.89 | 3.18 | 1.21 | 2.19 | a | 0.47 | 20.14 | |||||||||||
1998 | 0.12 | b | 0.44 | 1.23 | 2.16 | b | 0.16 | 0.11 | 3.91 | 0.82 | 0.87 | 2.57 | 0.78 | 0.32 | a | 13.49 | ||||||||||
1999 | 1.08 | a | 0.28 | 0.35 | b | 2.02 | a | 2.75 | 1.04 | 3.80 | a | 1.92 | 1.19 | 0.39 | 0.01 | 0.38 | 15.21 | |||||||||
2000 | 0.25 | 0.35 | 1.72 | d | 0.54 | a | 0.44 | 0.56 | 0.96 | 1.26 | 0.86 | 1.75 | 0.33 | a | 0.03 | a | 9.05 | |||||||||
2001 | 0.50 | a | 0.58 | 1.31 | 0.98 | 1.74 | 0.44 | 2.08 | 2.49 | 0.62 | 0.64 | 0.60 | a | 0.18 | c | 12.16 | ||||||||||
2002 | 0.52 | a | 0.39 | 0.30 | 0.29 | 0.01 | 0.29 | 0.91 | 0.78 | 1.61 | 1.03 | 0.03 | 0.10 | 6.26 | ||||||||||||
2003 | 0.27 | 0.64 | 2.64 | 0.95 | a | 0.49 | 0.69 | 0.83 | 1.34 | 2.48 | 0.36 | 0.38 | 0.32 | 11.39 | ||||||||||||
2004 | 0.35 | a | 0.88 | 0.53 | 3.82 | 0.00 | 0.41 | 2.57 | 0.65 | 2.57 | 0.81 | 0.75 | a | 0.28 | 13.62 | |||||||||||
2005 | 1.91 | 0.58 | 0.54 | a | 1.27 | 0.57 | 0.32 | 1.45 | 2.46 | 1.44 | a | 1.26 | 0.15 | 0.15 | 12.10 | |||||||||||
2006 | 0.39 | 0.02 | 0.97 | 0.23 | 0.27 | 0.86 | 3.20 | 2.78 | 2.13 | d | 1.71 | a | 0.06 | 0.34 | 12.96 | |||||||||||
2007 | 0.55 | 0.13 | 0.91 | 1.92 | 1.86 | 0.28 | 4.83 | 2.35 | 1.66 | 0.53 | 0.00 | a | 1.34 | 16.36 | ||||||||||||
2008 | 0.53 | 0.39 | 0.37 | 0.30 | 0.42 | 0.44 | 2.38 | 3.37 | 0.87 | 0.67 | 0.46 | 0.95 | 11.15 | |||||||||||||
2009 | 0.23 | 0.12 | 0.40 | 2.24 | 2.24 | 1.66 | 0.09 | 0.47 | 1.13 | 1.71 | 0.26 | 0.13 | 10.68 | |||||||||||||
2010 | 0.12 | b | 0.38 | b | 1.73 | 1.55 | 0.29 | 0.16 | 1.76 | 1.34 | 1.47 | 0.31 | b | 0.09 | 0.43 | 9.63 | ||||||||||
2011 | 0.12 | 0.29 | 0.08 | 0.90 | 0.27 | 0.03 | 2.03 | 1.46 | 0.91 | 1.45 | 0.32 | 0.37 | 8.23 | |||||||||||||
2012 | 0.10 | 0.53 | 0.10 | 0.90 | 1.03 | 0.27 | 1.77 | b | 1.61 | 1.17 | 0.46 | 0.24 | 0.41 | 8.59 | ||||||||||||
2013 | 0.28 | 0.27 | 0.36 | 0.40 | a | 0.52 | 0.55 | 1.81 | 1.29 | 3.49 | 0.81 | 1.17 | 0.12 | 11.07 | ||||||||||||
2014 | 0.77 | 0.34 | 0.99 | 1.00 | 0.96 | 0.03 | 2.93 | 1.62 | 0.71 | 0.43 | 1.40 | 0.77 | 11.95 | |||||||||||||
2015 | 0.32 | 0.97 | 0.71 | 1.10 | 3.21 | 1.69 | 1.91 | 1.01 | 0.28 | 1.07 | 0.84 | 0.77 | 13.88 | |||||||||||||
2016 | 0.49 | 0.43 | 0.22 | 1.41 | 0.78 | 0.31 | 1.29 | 2.60 | 0.63 | 0.13 | 0.48 | 2.07 | 10.84 | |||||||||||||
2017 | 1.25 | 0.11 | 0.70 | 1.03 | 2.97 | 0.09 | 3.45 | 1.20 | 2.19 | 0.74 | 0.10 | 0.06 | 13.89 | |||||||||||||
2018 | 0.54 | 0.37 | 0.18 | 0.59 | 0.26 | 0.68 | 1.08 | 1.21 | 0.78 | 0.97 | 0.14 | 0.17 | 6.97 | |||||||||||||
2019 | 0.80 | 0.61 | 1.66 | 1.64 | 1.25 | 1.00 | 3.20 | 0.63 | 0.63 | 0.31 | 0.54 | 0.95 | 13.22 | |||||||||||||
2020 | 0.45 | 0.29 | 0.27 | 0.00 | e | ----- | z | 0.84 | 2.95 | 1.15 | 0.45 | a | 0.40 | 0.40 | 0.40 | 7.60 | a | |||||||||
2021 | 0.49 | 0.13 | 0.98 | 0.05 | 0.68 | 1.38 | 2.02 | 2.09 | 0.71 | 0.75 | 0.06 | 0.10 | 9.44 | |||||||||||||
2022 | 0.70 | 0.45 | 1.04 | 0.60 | 1.29 | 1.90 | 5.80 | 2.96 | 1.39 | 0.60 | 0.56 | 0.11 | 17.40 | |||||||||||||
2023 | 0.90 | 0.67 | 0.31 | 0.36 | 2.15 | 0.87 | 0.17 | 1.01 | 1.39 | 0.30 | 0.06 | 0.43 | 8.62 | |||||||||||||
2024 | 0.27 | 1.47 | 2.67 | 0.59 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 5.00 | h | ||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.45 | 0.39 | 0.77 | 0.89 | 1.11 | 0.82 | 1.93 | 1.92 | 1.22 | 0.83 | 0.47 | 0.41 | 11.26 | |||||||||||||
S.D. | 0.38 | 0.31 | 0.63 | 0.70 | 0.89 | 0.75 | 1.22 | 1.02 | 0.90 | 0.61 | 0.42 | 0.37 | 3.11 | |||||||||||||
SKEW | 1.34 | 1.59 | 1.32 | 1.25 | 0.95 | 1.79 | 0.84 | 0.55 | 1.13 | 0.91 | 1.38 | 1.79 | 0.35 | |||||||||||||
MAX | 1.91 | 1.47 | 2.67 | 3.82 | 3.83 | 4.32 | 5.80 | 5.14 | 3.87 | 2.57 | 2.19 | 2.07 | 20.14 | |||||||||||||
MIN | 0.01 | 0.01 | 0.05 | 0.00 | 0.00 | 0.03 | 0.08 | 0.25 | 0.00 | 0.00 | 0.00 | 0.00 | 5.85 | |||||||||||||
YRS | 74 | 73 | 73 | 73 | 71 | 73 | 72 | 72 | 73 | 73 | 72 | 74 | 68 |