YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1947 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.56 | 3.00 | 1.10 | 0.97 | 5.63 | h | ||||
1948 | 0.49 | 1.31 | 0.85 | 1.18 | 0.21 | 1.59 | 1.08 | 1.32 | 0.31 | 1.16 | 0.32 | 1.12 | 10.94 | |||||||||||||
1949 | 2.11 | 0.74 | 2.06 | 1.28 | 0.91 | 1.02 | 0.79 | 0.96 | 1.10 | 1.92 | 0.13 | 0.27 | 13.29 | |||||||||||||
1950 | 1.46 | 0.59 | 0.48 | 1.13 | 0.88 | 0.00 | 1.42 | 0.10 | 1.04 | 0.00 | 0.36 | 0.12 | 7.58 | |||||||||||||
1951 | 0.67 | 0.76 | 0.07 | 1.17 | 1.21 | 0.21 | 0.17 | 2.45 | 0.57 | 1.04 | 0.94 | 1.54 | e | 10.80 | ||||||||||||
1952 | 1.08 | 0.41 | 1.38 | 1.16 | 1.04 | 0.24 | 1.15 | 1.40 | 0.98 | 0.00 | 0.72 | 0.60 | 10.16 | |||||||||||||
1953 | 0.58 | 0.05 | 1.22 | 1.56 | 0.92 | 0.11 | 1.12 | 1.44 | 0.00 | 3.81 | 1.47 | 0.32 | 12.60 | |||||||||||||
1954 | 0.14 | 0.40 | 0.66 | 0.72 | 0.55 | ----- | z | 0.59 | 1.36 | 2.56 | 1.37 | 1.72 | 0.21 | 10.28 | a | |||||||||||
1955 | 0.79 | 0.93 | 0.05 | 1.54 | 0.97 | 0.57 | 1.22 | 1.73 | e | 0.33 | 0.05 | 0.69 | 0.46 | 9.33 | ||||||||||||
1956 | 1.35 | 0.27 | 0.10 | 0.41 | 0.48 | 0.15 | 1.11 | 0.74 | 0.06 | 1.17 | 0.09 | 0.42 | 6.35 | |||||||||||||
1957 | 1.93 | 0.74 | 0.47 | 2.23 | 1.49 | 0.41 | 1.63 | 5.28 | 0.07 | 3.34 | 1.90 | 0.38 | 19.87 | |||||||||||||
1958 | 0.66 | 1.75 | 1.00 | 0.48 | 0.32 | 0.19 | 0.01 | 0.62 | 1.17 | 0.32 | 0.65 | 0.04 | 7.21 | |||||||||||||
1959 | 0.39 | 0.86 | 0.14 | 0.72 | 0.14 | 0.37 | 0.21 | 2.81 | 1.14 | 0.92 | 0.48 | 1.99 | 10.17 | |||||||||||||
1960 | 0.40 | 1.72 | 1.14 | 0.92 | 0.65 | 0.60 | 0.30 | 0.15 | 0.91 | 1.28 | 0.41 | 0.56 | 9.04 | |||||||||||||
1961 | 0.08 | 0.13 | 2.06 | 1.08 | 1.88 | 0.03 | 0.32 | 1.90 | 2.10 | 2.00 | 0.87 | 0.28 | 12.73 | |||||||||||||
1962 | 0.70 | 1.01 | 0.69 | 0.61 | 0.24 | 0.66 | 0.07 | 0.35 | 1.15 | a | 0.40 | 0.41 | 0.53 | 6.82 | ||||||||||||
1963 | 1.38 | 0.39 | 0.63 | 0.16 | 0.43 | 0.27 | 1.58 | 1.34 | 0.40 | 1.82 | 0.68 | 0.08 | 9.16 | |||||||||||||
1964 | 0.12 | 0.00 | 0.63 | 1.54 | 0.45 | 0.57 | 0.83 | 1.64 | 0.96 | 0.00 | 1.24 | 0.75 | 8.73 | |||||||||||||
1965 | 0.96 | 1.68 | 1.08 | 1.47 | 1.31 | 1.09 | 2.26 | 0.70 | 2.20 | 1.60 | 1.07 | 2.12 | 17.54 | |||||||||||||
1966 | 0.27 | 1.10 | 0.15 | 0.77 | 0.64 | 0.27 | 1.82 | 0.98 | 0.40 | 1.09 | 0.46 | 1.49 | 9.44 | |||||||||||||
1967 | 0.38 | 0.09 | 0.26 | 0.08 | 3.21 | 1.83 | 0.92 | 1.20 | 0.91 | 0.30 | 0.64 | 2.27 | 12.09 | |||||||||||||
1968 | 0.58 | 1.24 | 0.84 | 1.38 | 0.70 | 0.25 | 0.46 | 1.77 | 0.59 | 1.27 | 0.45 | 0.71 | 10.24 | |||||||||||||
1969 | 1.32 | 1.34 | 0.91 | 0.36 | 0.44 | 2.29 | 1.00 | 1.44 | 1.18 | 1.39 | 0.88 | 1.02 | a | 13.57 | ||||||||||||
1970 | 0.46 | 0.25 | 3.67 | 1.23 | 0.00 | 1.17 | 1.31 | 0.63 | 1.05 | 1.12 | 1.24 | 0.89 | 13.02 | |||||||||||||
1971 | 0.10 | 0.62 | 0.10 | 0.99 | 0.65 | 0.00 | 0.04 | 2.32 | 0.30 | 2.68 | 0.85 | 1.53 | 10.18 | |||||||||||||
1972 | 0.06 | 0.00 | 0.00 | 0.22 | 0.48 | 0.81 | 0.34 | 1.09 | 1.10 | 4.84 | 0.99 | ----- | z | 9.93 | a | |||||||||||
1973 | 1.14 | b | 0.36 | 1.42 | 1.31 | ----- | z | 1.31 | 0.52 | 1.36 | 0.08 | g | 0.36 | c | 1.20 | 0.64 | 9.62 | b | ||||||||
1974 | 1.91 | 0.02 | 0.26 | 1.73 | 0.00 | 0.18 | 1.19 | 0.24 | 0.82 | 1.01 | 1.12 | 0.55 | 9.03 | |||||||||||||
1975 | 0.49 | 0.51 | 2.25 | 1.90 | 0.98 | 0.91 | 0.98 | 0.27 | 0.22 | 0.37 | 1.54 | 0.55 | 10.97 | |||||||||||||
1976 | 0.32 | 1.72 | 0.84 | 0.66 | 1.14 | 0.25 | 0.79 | 0.46 | 0.61 | 0.25 | 0.15 | 0.00 | 7.19 | |||||||||||||
1977 | 0.23 | 0.36 | 0.48 | 0.22 | 0.54 | 0.08 | 2.16 | 0.42 | 0.94 | 0.59 | 1.16 | 0.49 | 7.67 | |||||||||||||
1978 | 1.56 | 1.32 | 0.94 | 1.39 | 1.14 | 0.10 | 0.71 | 0.44 | 0.08 | 0.35 | 2.16 | 0.89 | 11.08 | |||||||||||||
1979 | 1.68 | a | 0.84 | 2.41 | 0.22 | ----- | z | 0.59 | 0.35 | 0.80 | 0.22 | 0.21 | 1.28 | 0.61 | 9.21 | a | ||||||||||
1980 | 2.33 | 2.35 | 2.37 | 0.91 | 2.25 | 0.00 | 0.62 | 0.85 | 0.35 | 1.61 | 0.62 | 0.21 | 14.47 | |||||||||||||
1981 | 0.19 | 0.35 | 1.04 | 0.96 | 1.27 | 0.11 | 2.41 | 3.30 | 0.93 | 1.85 | 0.72 | 0.54 | 13.67 | |||||||||||||
1982 | 0.55 | a | 0.24 | 1.19 | a | 0.14 | 0.55 | x | 0.65 | 0.78 | a | 4.64 | 2.86 | 0.64 | 1.90 | 1.31 | 14.90 | a | ||||||||
1983 | 0.36 | 0.80 | a | 2.61 | 1.07 | 2.03 | a | 1.81 | 1.23 | 0.53 | 0.93 | 0.62 | 1.70 | 1.99 | 15.68 | |||||||||||
1984 | 0.39 | 0.40 | 1.64 | 1.45 | 0.10 | 1.69 | 1.67 | 2.56 | 0.37 | 2.55 | 0.27 | 0.94 | 14.03 | |||||||||||||
1985 | 0.20 | 0.12 | 1.13 | 1.91 | 1.75 | 0.16 | 2.67 | c | 0.32 | 1.73 | a | 2.44 | 1.18 | 0.40 | 14.01 | |||||||||||
1986 | 0.11 | 0.18 | 0.65 | 1.65 | 1.35 | a | 0.42 | 0.93 | c | 0.91 | d | 2.39 | b | 1.44 | 1.17 | 0.50 | a | 11.70 | ||||||||
1987 | 0.64 | 1.49 | a | 1.07 | c | 0.34 | 2.92 | 0.46 | a | 2.46 | 1.00 | b | 0.20 | d | 1.42 | 1.36 | a | 1.11 | 14.47 | |||||||
1988 | 0.91 | 0.00 | 0.51 | 0.97 | 1.43 | 0.25 | 0.82 | a | 1.22 | e | 1.43 | 0.06 | g | 1.28 | c | 0.65 | a | 9.47 | a | |||||||
1989 | 1.57 | 0.99 | 1.06 | a | 0.08 | 0.00 | 0.00 | 1.36 | c | 1.86 | k | 0.07 | r | ----- | z | 0.10 | h | 0.10 | e | 5.16 | d | |||||
1990 | 0.62 | 0.49 | 1.35 | a | 1.08 | f | 0.49 | 0.00 | b | 1.40 | h | 0.79 | d | ----- | z | 0.90 | q | 1.36 | 0.52 | 5.62 | d | |||||
1991 | 0.63 | 0.20 | 1.19 | 0.46 | a | 0.16 | c | 0.07 | 0.89 | b | 1.13 | b | 1.22 | i | 1.29 | e | 1.60 | b | 0.79 | 8.41 | a | |||||
1992 | 0.35 | a | 0.84 | 2.02 | 0.98 | 3.35 | 0.38 | f | 2.46 | 0.84 | a | 0.29 | 1.31 | y | 1.11 | x | 1.08 | 12.21 | c | |||||||
1993 | 2.03 | 1.91 | 1.48 | a | 0.78 | 2.46 | 0.15 | 0.08 | 2.56 | c | 0.28 | 1.87 | 0.59 | 0.41 | 14.60 | |||||||||||
1994 | 0.46 | 0.38 | a | 0.23 | 1.93 | 0.28 | 0.74 | 0.00 | 0.47 | 0.31 | e | 0.58 | l | 1.50 | 0.51 | 6.81 | a | |||||||||
1995 | 0.75 | 0.52 | 2.41 | 0.64 | 2.60 | 1.25 | 0.71 | b | 2.10 | j | 1.22 | f | 0.52 | l | 0.10 | 0.35 | 9.33 | c | ||||||||
1996 | 0.92 | 0.94 | 1.39 | 1.05 | 0.45 | 0.70 | 0.78 | 0.12 | 5.18 | c | 1.30 | n | 0.95 | 0.48 | 12.96 | a | ||||||||||
1997 | 1.22 | 0.38 | 0.15 | 2.78 | 1.52 | 0.41 | 0.39 | 2.59 | e | 3.00 | 1.12 | a | 1.65 | 0.43 | 15.64 | |||||||||||
1998 | 0.40 | 0.10 | 1.25 | 1.49 | 0.42 | 0.72 | 1.32 | 0.00 | 0.43 | 2.38 | 0.58 | 0.00 | 9.09 | |||||||||||||
1999 | 0.25 | 0.22 | 0.00 | 2.55 | 0.39 | 1.27 | 2.86 | 2.32 | 0.87 | 0.07 | 0.18 | 0.21 | 11.19 | |||||||||||||
2000 | 1.23 | 1.23 | 1.66 | 0.30 | 0.41 | 0.14 | b | 0.24 | 2.64 | 0.96 | 1.59 | 0.60 | 0.49 | 11.49 | ||||||||||||
2001 | 1.14 | 0.69 | 0.82 | 1.40 | 1.21 | 0.04 | 3.19 | 2.57 | 0.14 | 0.46 | 1.23 | 0.39 | 13.28 | |||||||||||||
2002 | 0.24 | 0.03 | 0.14 | 0.58 | 0.43 | 0.05 | 0.71 | 1.31 | 2.98 | 1.31 | 0.34 | 0.09 | 8.21 | |||||||||||||
2003 | 0.18 | 1.13 | 0.88 | 0.39 | 2.11 | 0.30 | 0.54 | 0.82 | 0.71 | 0.11 | 0.31 | 1.13 | 8.61 | |||||||||||||
2004 | 0.37 | 1.40 | a | 0.02 | 2.81 | 0.20 | 0.16 | 0.14 | 0.80 | 2.39 | 1.36 | 1.52 | 1.04 | 12.21 | ||||||||||||
2005 | 1.76 | 0.66 | 2.09 | 0.76 | 0.75 | 1.76 | 0.92 | 1.59 | 1.82 | 1.25 | 0.77 | 0.44 | 14.57 | |||||||||||||
2006 | 0.57 | 0.14 | 2.24 | 0.42 | 0.08 | 0.26 | 0.66 | 2.04 | a | 2.86 | a | 3.97 | 0.61 | 0.30 | 14.15 | |||||||||||
2007 | 0.30 | 0.70 | 1.11 | 1.41 | 0.56 | 0.13 | 1.40 | 1.41 | 2.69 | 0.86 | 0.16 | 2.03 | 12.76 | |||||||||||||
2008 | 0.90 | 1.14 | 0.15 | 1.21 | 0.72 | 0.67 | 0.32 | 1.35 | 0.61 | 0.36 | 0.77 | 1.54 | 9.74 | |||||||||||||
2009 | 0.18 | 0.46 | 0.67 | 0.62 | 0.84 | 1.64 | a | 0.48 | 0.64 | 1.15 | 0.65 | 0.63 | 1.81 | b | 9.77 | |||||||||||
2010 | 0.99 | 1.16 | 1.91 | 1.63 | 0.36 | 1.16 | 0.78 | 2.20 | 0.70 | 2.00 | 1.03 | 1.31 | 15.23 | |||||||||||||
2011 | ----- | z | 0.22 | y | 0.70 | w | 2.15 | u | 1.74 | v | ----- | z | 3.17 | s | 0.98 | u | 0.97 | v | 1.08 | y | 0.71 | 1.01 | 1.72 | j | ||
2012 | 0.56 | 0.81 | 0.29 | 0.20 | 0.00 | 0.03 | 1.18 | 0.62 | 1.33 | 0.51 | 0.32 | 0.89 | 6.74 | |||||||||||||
2013 | 0.29 | 0.06 | 0.20 | 0.67 | 1.66 | 0.00 | 5.29 | 2.45 | 3.70 | 2.13 | 1.64 | 0.36 | 18.45 | |||||||||||||
2014 | 0.24 | 0.49 | 0.18 | 1.23 | 1.30 | 0.00 | 1.28 | 2.10 | 2.36 | 0.60 | 0.73 | 1.51 | 12.02 | |||||||||||||
2015 | 0.91 | 0.33 | 0.53 | 1.37 | 2.31 | 1.29 | 4.01 | 1.02 | 0.99 | 3.03 | 1.80 | 1.02 | 18.61 | |||||||||||||
2016 | 0.63 | 0.92 | 0.71 | 1.57 | 2.60 | 0.33 | 1.33 | 1.34 | 0.93 | 0.28 | 1.28 | 0.93 | 12.85 | |||||||||||||
2017 | 1.30 | 0.56 | 0.59 | 0.26 | 0.71 | 0.25 | 1.29 | 0.65 | 1.09 | 0.08 | 0.26 | 0.16 | 7.20 | |||||||||||||
2018 | 0.82 | 1.12 | 0.82 | 0.58 | 0.30 | 0.03 | 0.58 | 1.16 | 0.10 | 3.43 | 0.23 | 1.12 | 10.29 | |||||||||||||
2019 | 1.29 | 2.02 | 3.15 | 1.64 | 2.08 | 0.53 | 0.39 | 0.23 | 0.58 | 0.01 | 1.42 | 1.40 | 14.74 | |||||||||||||
2020 | 0.54 | 0.18 | 1.61 | 0.28 | 0.06 | 0.88 | 0.17 | 0.07 | 0.93 | 0.61 | 0.52 | 0.39 | 6.24 | |||||||||||||
2021 | 0.93 | 0.57 | 1.79 | 0.51 | 0.58 | 0.65 | 1.94 | 1.62 | 1.56 | 1.45 | 0.13 | 1.92 | 13.65 | |||||||||||||
2022 | 0.15 | 0.48 | 1.10 | 0.19 | 0.12 | 0.51 | 0.99 | 1.19 | 1.20 | 1.56 | 0.71 | 1.65 | 9.85 | |||||||||||||
2023 | 2.25 | 1.25 | 2.07 | 0.51 | 0.29 | 0.38 | 0.00 | 1.74 | 0.21 | 0.77 | 0.68 | 0.47 | 10.62 | |||||||||||||
2024 | 0.68 | 0.88 | 1.13 | h | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 1.56 | j | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.78 | 0.72 | 1.05 | 1.01 | 0.96 | 0.55 | 1.09 | 1.33 | 1.12 | 1.29 | 0.89 | 0.79 | 11.56 | |||||||||||||
S.D. | 0.58 | 0.55 | 0.81 | 0.64 | 0.83 | 0.55 | 0.94 | 0.99 | 0.99 | 1.07 | 0.52 | 0.57 | 3.17 | |||||||||||||
SKEW | 0.95 | 0.78 | 0.86 | 0.68 | 1.10 | 1.19 | 1.87 | 1.48 | 1.61 | 1.12 | 0.36 | 0.82 | 0.42 | |||||||||||||
MAX | 2.33 | 2.35 | 3.67 | 2.81 | 3.35 | 2.29 | 5.29 | 5.28 | 5.18 | 4.84 | 2.16 | 2.27 | 19.87 | |||||||||||||
MIN | 0.06 | 0.00 | 0.00 | 0.08 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.09 | 0.00 | 6.24 | |||||||||||||
YRS | 76 | 76 | 75 | 74 | 72 | 73 | 74 | 73 | 71 | 69 | 75 | 76 | 62 |