YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1948 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.75 | 0.41 | 0.40 | 0.03 | 0.07 | 0.12 | ----- | z | ||||||
1949 | 0.50 | 0.45 | 0.85 | 0.74 | 0.58 | 0.90 | 0.15 | 0.11 | 0.75 | 0.50 | 0.05 | 0.18 | 0.90 | |||||||||||||
1950 | 0.13 | 0.02 | 0.28 | 0.36 | 0.32 | 0.90 | 0.61 | 1.00 | 0.85 | ----- | z | ----- | z | ----- | z | ----- | z | |||||||||
1951 | ----- | z | 0.10 | b | 0.39 | i | 0.33 | 0.56 | 0.88 | 0.94 | 0.42 | 0.99 | b | 0.29 | ----- | z | ----- | z | ----- | z | ||||||
1952 | 0.29 | 0.58 | 0.15 | 0.15 | 1.44 | 1.07 | 1.41 | 0.20 | i | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | |||||||
1953 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1954 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1955 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1956 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1957 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1958 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1959 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1960 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1961 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1962 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.28 | ----- | z | |
1963 | 0.70 | 0.14 | 0.80 | 2.93 | 1.08 | 0.63 | 0.46 | 0.07 | 1.45 | 0.26 | 0.18 | 0.46 | 2.93 | |||||||||||||
1964 | 0.17 | 0.15 | 0.32 | 3.21 | 1.73 | 2.50 | 0.01 | 2.34 | 0.03 | 0.23 | 0.48 | 0.22 | 3.21 | |||||||||||||
1965 | 0.59 | 0.16 | 0.63 | 0.47 | 1.10 | 0.39 | 0.41 | 1.32 | 0.67 | 0.35 | 0.32 | 0.21 | 1.32 | |||||||||||||
1966 | 0.21 | 0.44 | 0.58 | 0.46 | 0.60 | 0.43 | 0.95 | 1.02 | 0.57 | 0.43 | 0.21 | 0.17 | 1.02 | |||||||||||||
1967 | 0.44 | 0.31 | 0.93 | 0.96 | 0.37 | 1.68 | 0.18 | 0.16 | 0.67 | 0.33 | 0.36 | 0.65 | 1.68 | |||||||||||||
1968 | 0.46 | 0.45 | 0.43 | 0.54 | 0.91 | 1.16 | 0.39 | 0.96 | 0.45 | 0.64 | 0.84 | 0.32 | 1.16 | |||||||||||||
1969 | 0.84 | 0.00 | 0.26 | 0.75 | 0.76 | 1.59 | 0.85 | 0.55 | 0.51 | 0.40 | 0.95 | 0.11 | 1.59 | |||||||||||||
1970 | 0.30 | 0.29 | 1.07 | 1.10 | 1.45 | 1.35 | 0.43 | 0.03 | 0.96 | 0.57 | 0.49 | 0.10 | 1.45 | |||||||||||||
1971 | 0.44 | 0.59 | 0.40 | 1.11 | 1.35 | 0.30 | 0.35 | 0.88 | 1.16 | 1.79 | 0.53 | 0.18 | 1.79 | |||||||||||||
1972 | 0.82 | 0.35 | 0.24 | 1.50 | 0.98 | 0.75 | 0.36 | 0.35 | 0.51 | 0.81 | 0.26 | 0.79 | 1.50 | |||||||||||||
1973 | 0.35 | 0.09 | 0.97 | 1.02 | 0.55 | 0.39 | 0.50 | 0.47 | 1.34 | 0.29 | 0.57 | 0.41 | 1.34 | |||||||||||||
1974 | 0.05 | 0.24 | 0.47 | 0.78 | 0.64 | 1.23 | 1.95 | 0.47 | 0.91 | 2.39 | 0.59 | 0.08 | 2.39 | |||||||||||||
1975 | 0.55 | 0.24 | 0.23 | 0.55 | 1.82 | 1.09 | 0.47 | 0.22 | 0.16 | 0.79 | 0.77 | 0.37 | 1.82 | |||||||||||||
1976 | 0.23 | 0.18 | 0.14 | 1.01 | 0.43 | 1.17 | 0.22 | 1.82 | 0.55 | 0.40 | 0.32 | 0.17 | 1.82 | |||||||||||||
1977 | 0.33 | 0.11 | 0.65 | 0.27 | 0.56 | 0.96 | 0.22 | 0.41 | 0.37 | 0.32 | 0.70 | 0.70 | 0.96 | |||||||||||||
1978 | 0.37 | 0.30 | 0.06 | 2.71 | 3.68 | 0.24 | 0.57 | 0.92 | 2.11 | 0.08 | 1.09 | 0.62 | 3.68 | |||||||||||||
1979 | 0.15 | 0.29 | 0.25 | 0.47 | 1.03 | 0.43 | 0.31 | 0.47 | 0.12 | 0.58 | 0.13 | 0.10 | 1.03 | |||||||||||||
1980 | 0.32 | 0.35 | 0.42 | 0.13 | 1.30 | 0.38 | 0.22 | 0.40 | 0.24 | 0.75 | 0.40 | 0.14 | 1.30 | |||||||||||||
1981 | 0.15 | 0.15 | 0.65 | 0.12 | 1.70 | 0.42 | 4.56 | 0.20 | 0.09 | 0.47 | 0.23 | 0.20 | 4.56 | |||||||||||||
1982 | 0.16 | 0.17 | 0.50 | 0.25 | 0.61 | 2.24 | 0.83 | 0.16 | a | 1.70 | 0.72 | 0.11 | 0.55 | 2.24 | a | |||||||||||
1983 | 0.12 | 0.20 | 0.85 | 0.26 | 1.02 | 0.47 | 0.27 | 0.31 | 0.95 | 0.42 | 0.24 | 0.43 | 1.02 | |||||||||||||
1984 | 0.24 | 0.32 | 0.29 | 1.15 | 1.20 | 0.92 | 0.09 | 0.41 | 0.73 | 0.15 | 0.31 | 0.34 | 1.20 | |||||||||||||
1985 | 0.21 | 0.24 | 0.45 | 0.38 | 0.90 | 1.00 | 0.35 | 0.40 | 0.80 | 0.28 | 0.19 | 0.10 | 1.00 | |||||||||||||
1986 | 0.52 | 0.74 | 0.47 | 0.70 | 0.93 | 0.74 | 0.75 | 0.23 | 0.75 | 0.90 | 0.82 | 0.06 | 0.93 | |||||||||||||
1987 | 0.70 | 0.25 | 0.52 | 0.18 | 1.00 | 0.46 | 1.06 | 0.90 | 1.00 | 0.35 | 0.26 | 0.19 | 1.06 | |||||||||||||
1988 | 0.45 | 0.42 | 0.11 | 0.57 | 5.00 | 0.46 | 0.04 | 0.08 | 0.90 | 1.00 | 0.75 | 0.40 | 5.00 | |||||||||||||
1989 | 0.40 | 0.22 | 0.79 | 0.63 | 0.53 | 0.75 | 1.15 | 0.28 | 0.30 | 1.16 | 0.25 | 0.75 | 1.16 | |||||||||||||
1990 | 0.09 | 0.44 | 0.20 | 0.43 | 1.14 | 0.30 | 0.53 | 0.24 | 0.18 | 0.80 | 0.33 | 0.13 | 1.14 | |||||||||||||
1991 | 0.32 | 0.32 | 0.38 | 0.80 | 0.54 | 0.57 | 0.41 | 0.38 | 1.60 | 1.24 | 0.70 | 0.12 | 1.60 | |||||||||||||
1992 | 0.12 | 0.02 | 0.80 | 0.76 | 0.94 | 2.50 | 0.89 | 0.50 | 0.20 | 0.39 | 0.20 | 0.21 | 2.50 | |||||||||||||
1993 | 0.14 | 0.19 | 0.25 | 1.01 | 0.59 | 1.42 | 1.92 | 0.53 | 0.27 | 2.17 | 0.15 | 0.15 | 2.17 | |||||||||||||
1994 | 0.30 | 0.37 | 0.78 | 0.65 | 0.50 | 0.47 | 1.75 | 0.03 | 0.90 | 1.02 | 0.43 | 0.09 | 1.75 | |||||||||||||
1995 | 0.43 | 0.34 | 0.50 | 0.64 | 1.02 | 0.69 | 0.39 | 0.18 | 0.49 | 0.75 | 0.60 | 0.05 | 1.02 | |||||||||||||
1996 | 0.44 | 0.35 | 0.58 | 0.26 | 1.38 | 0.48 | 0.11 | 0.15 | 0.45 | 1.80 | 0.38 | 0.63 | 1.80 | |||||||||||||
1997 | 0.57 | 0.11 | a | 0.36 | 0.58 | e | 0.70 | b | 0.89 | a | 1.76 | 1.75 | 0.12 | 1.49 | 0.43 | 0.31 | 1.76 | i | ||||||||
1998 | 0.30 | 0.10 | 0.39 | 0.36 | 0.12 | 0.39 | b | 0.30 | 0.75 | 1.12 | 0.82 | 0.41 | 0.19 | 1.12 | b | |||||||||||
1999 | 0.25 | 0.11 | 0.32 | 0.76 | l | 0.66 | 0.57 | 0.12 | 0.17 | a | 0.87 | 0.36 | 0.42 | 0.30 | 0.87 | m | ||||||||||
2000 | 0.55 | 0.54 | a | 0.49 | 0.41 | 1.23 | 1.44 | 0.07 | 0.32 | 0.53 | 0.34 | 0.18 | 0.26 | 1.44 | a | |||||||||||
2001 | 0.14 | 0.14 | 0.15 | 0.92 | 0.15 | 1.95 | 0.63 | 0.00 | 0.54 | 0.50 | 0.42 | b | 0.02 | 1.95 | b | |||||||||||
2002 | 0.29 | b | 0.54 | a | 0.19 | 0.40 | 0.62 | 0.96 | 1.33 | 0.60 | 0.57 | 0.29 | d | 0.51 | a | 0.25 | 1.33 | h | ||||||||
2003 | 0.47 | 0.80 | c | 0.80 | 0.35 | 1.32 | 0.53 | 0.10 | 0.32 | 0.12 | 0.56 | 0.35 | 0.28 | a | 1.32 | d | ||||||||||
2004 | 0.09 | 1.25 | 0.17 | 0.38 | 0.69 | 0.82 | 0.96 | 0.37 | 0.61 | 0.50 | 0.11 | 0.19 | 1.25 | |||||||||||||
2005 | 0.26 | 0.10 | 0.22 | a | 1.26 | 1.02 | 1.08 | 0.58 | 0.40 | 0.49 | 1.04 | 0.52 | 0.23 | k | 1.26 | l | ||||||||||
2006 | 0.22 | 0.32 | 0.66 | 0.97 | 0.25 | 0.25 | ----- | z | 0.09 | 1.98 | 1.30 | 0.11 | 0.23 | ----- | z | |||||||||||
2007 | 0.28 | 0.52 | 1.38 | 0.61 | 0.58 | 4.34 | 0.13 | 0.04 | 0.64 | 1.18 | 0.46 | 0.34 | 4.34 | |||||||||||||
2008 | 0.72 | 0.02 | 0.14 | a | 0.33 | 1.61 | 0.60 | 0.39 | 0.23 | 1.88 | 1.59 | 0.36 | 0.32 | 1.88 | a | |||||||||||
2009 | 0.25 | a | 0.25 | 0.44 | 0.52 | 0.30 | 1.12 | 0.15 | 0.27 | 0.03 | 1.31 | a | 0.05 | 0.28 | 1.31 | b | ||||||||||
2010 | 0.25 | 0.31 | 0.25 | 0.72 | 1.32 | 1.18 | 0.27 | 0.60 | 0.24 | 0.14 | 0.59 | 0.00 | 1.32 | |||||||||||||
2011 | ----- | z | 0.51 | y | ----- | z | 0.69 | v | 1.74 | u | 1.00 | v | ----- | z | 1.12 | x | ----- | z | ----- | z | 0.31 | h | 0.14 | ----- | z | |
2012 | ----- | z | 0.22 | w | ----- | z | ----- | z | 0.29 | x | ----- | z | 0.32 | g | 0.06 | c | 0.00 | 0.36 | 0.25 | 0.10 | ----- | z | ||||
2013 | 0.63 | 0.24 | g | 0.05 | c | 0.67 | l | 1.85 | l | 0.43 | f | 0.32 | i | 0.27 | i | 1.75 | d | 3.13 | r | 0.07 | n | 0.84 | k | ----- | z | |
2014 | 0.94 | k | 0.33 | i | 1.73 | b | 1.28 | d | 1.05 | 0.50 | 0.67 | 1.73 | 1.00 | 0.08 | 1.00 | 0.44 | ----- | z | ||||||||
2015 | 0.45 | 0.34 | 0.26 | 0.85 | 1.56 | 0.65 | 0.70 | b | 0.33 | 0.31 | 0.91 | 0.25 | e | 0.31 | a | 1.56 | h | |||||||||
2016 | 0.37 | j | 0.37 | c | 0.82 | 1.15 | 0.70 | 0.06 | 0.15 | 1.62 | a | 2.00 | 1.13 | 1.00 | 0.34 | 2.00 | n | |||||||||
2017 | 0.34 | e | 0.66 | e | 0.83 | 0.90 | 1.08 | 0.26 | 0.02 | 0.12 | 2.46 | 0.27 | 0.78 | 0.59 | d | 2.46 | n | |||||||||
2018 | 0.83 | y | 0.60 | f | 0.28 | 0.63 | 1.93 | 0.80 | h | 0.33 | 0.85 | 0.52 | 0.84 | 0.56 | 0.30 | ----- | z | |||||||||
2019 | 0.49 | 0.34 | h | 0.30 | d | 0.74 | 1.70 | 0.57 | 0.75 | 0.08 | 1.72 | 0.49 | a | 0.30 | 0.25 | 1.72 | m | |||||||||
2020 | 0.10 | 0.73 | 0.40 | a | 0.43 | 0.78 | 1.19 | a | 0.22 | 0.08 | 0.92 | 1.16 | 0.00 | 0.32 | d | 1.19 | f | |||||||||
2021 | 0.00 | 0.84 | 0.80 | 0.52 | a | 0.58 | f | 0.20 | 0.51 | 1.00 | 0.25 | 0.82 | 0.15 | 0.28 | 1.00 | g | ||||||||||
2022 | 0.12 | 0.29 | 0.45 | 1.61 | d | 1.10 | g | 0.97 | i | 0.97 | a | 1.31 | 0.60 | 0.27 | 0.35 | 0.38 | 1.61 | u | ||||||||
2023 | 0.62 | 0.64 | 1.14 | 0.23 | 0.84 | 2.10 | 0.00 | 0.68 | 1.30 | 1.70 | 0.10 | 0.00 | 2.10 | |||||||||||||
2024 | 0.24 | 0.45 | 0.16 | r | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.34 | 0.33 | 0.50 | 0.76 | 1.04 | 0.93 | 0.63 | 0.53 | 0.78 | 0.73 | 0.41 | 0.28 | 1.80 | |||||||||||||
S.D. | 0.20 | 0.24 | 0.33 | 0.61 | 0.77 | 0.72 | 0.70 | 0.51 | 0.58 | 0.53 | 0.26 | 0.19 | 0.98 | |||||||||||||
SKEW | 0.58 | 1.31 | 1.23 | 2.34 | 2.98 | 2.25 | 3.27 | 1.57 | 0.97 | 1.14 | 0.75 | 0.95 | 1.80 | |||||||||||||
MAX | 0.84 | 1.25 | 1.73 | 3.21 | 5.00 | 4.34 | 4.56 | 2.34 | 2.46 | 2.39 | 1.09 | 0.79 | 5.00 | |||||||||||||
MIN | 0.00 | 0.00 | 0.05 | 0.12 | 0.12 | 0.06 | 0.00 | 0.00 | 0.00 | 0.03 | 0.00 | 0.00 | 0.90 | |||||||||||||
YRS | 60 | 60 | 62 | 61 | 60 | 60 | 62 | 63 | 64 | 62 | 61 | 62 | 45 |