YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1952 | 0.90 | 1.18 | 0.51 | 0.30 | 0.66 | 1.00 | 0.23 | 0.00 | 0.41 | 0.05 | 0.36 | 1.61 | 1.61 | |||||||||||||
1953 | 2.01 | 1.12 | 0.47 | 1.48 | 0.96 | 0.83 | 0.00 | 0.68 | 0.14 | 0.36 | 0.38 | 1.28 | 2.01 | |||||||||||||
1954 | 1.44 | 0.80 | 0.46 | 1.12 | 0.44 | 1.18 | 0.26 | 2.26 | 0.21 | 0.44 | 0.90 | 1.00 | 2.26 | |||||||||||||
1955 | 0.49 | 1.35 | 0.85 | 0.63 | 0.68 | 1.36 | 0.63 | 0.03 | 0.80 | 1.32 | 1.35 | 1.40 | 1.40 | |||||||||||||
1956 | 1.05 | 0.65 | 0.89 | 0.32 | 1.02 | 0.77 | 0.45 | 0.87 | 0.00 | 0.59 | 0.88 | 0.95 | 1.05 | |||||||||||||
1957 | 0.81 | 0.99 | 1.09 | 0.79 | 1.54 | 0.58 | 0.18 | 0.64 | 0.24 | 0.94 | 1.24 | 1.05 | 1.54 | |||||||||||||
1958 | 0.86 | 0.70 | 0.39 | 1.21 | 0.68 | 1.05 | 0.59 | 0.28 | 0.94 | 1.45 | 1.37 | 0.99 | 1.45 | |||||||||||||
1959 | 1.30 | 0.68 | 0.79 | 0.61 | 0.78 | 0.82 | 0.04 | 0.47 | 1.20 | 1.15 | 1.97 | 0.95 | 1.97 | |||||||||||||
1960 | 0.83 | 1.00 | 1.02 | 0.73 | 0.59 | 0.70 | 0.12 | 0.77 | 0.74 | 1.01 | a | 1.26 | 1.31 | 1.31 | a | |||||||||||
1961 | 1.15 | 1.03 | 0.60 | 1.92 | 0.59 | 0.49 | 0.24 | 0.43 | 1.12 | 1.00 | 2.32 | 0.71 | 2.32 | |||||||||||||
1962 | 0.90 | 0.34 | 1.24 | 1.18 | 0.52 | 0.71 | 0.13 | 0.37 | 0.62 | 1.09 | 0.67 | 0.66 | 1.24 | |||||||||||||
1963 | 0.43 | 1.05 | 0.54 | 0.64 | 0.32 | 0.52 | 0.26 | 0.31 | 0.76 | 0.68 | 1.27 | 1.10 | 1.27 | |||||||||||||
1964 | 1.65 | 0.38 | 1.11 | 0.86 | 0.40 | 0.80 | 1.47 | 0.78 | 0.84 | 0.78 | 2.07 | 1.99 | 2.07 | |||||||||||||
1965 | 1.71 | 0.97 | 0.42 | 1.64 | 0.26 | 1.60 | 0.24 | 0.57 | 0.53 | 0.41 | 0.40 | 0.30 | 1.71 | |||||||||||||
1966 | 1.18 | 0.53 | 0.95 | 0.46 | 0.33 | 0.33 | 0.09 | 0.22 | 0.14 | 0.96 | 0.96 | 0.94 | 1.18 | |||||||||||||
1967 | 0.92 | 0.70 | 0.63 | 0.62 | 1.25 | 0.64 | 0.00 | 0.00 | 0.43 | 1.37 | 0.50 | 1.16 | 1.37 | |||||||||||||
1968 | 0.38 | 2.44 | 0.75 | 0.40 | 0.47 | 0.46 | 0.57 | 1.19 | 0.96 | 1.35 | 1.04 | 1.62 | 2.44 | |||||||||||||
1969 | 1.11 | 1.37 | 0.60 | 0.82 | 0.89 | 0.63 | 0.03 | 0.05 | 0.49 | 0.57 | 0.70 | 0.55 | 1.37 | |||||||||||||
1970 | 1.24 | 0.97 | 0.79 | 0.84 | 0.67 | 1.68 | 0.48 | 0.06 | 1.16 | 0.59 | 0.91 | 0.83 | 1.68 | |||||||||||||
1971 | 1.40 | 1.35 | 0.56 | 1.28 | 0.88 | 1.10 | 0.50 | 0.37 | 0.77 | 0.89 | 0.91 | 1.60 | 1.60 | |||||||||||||
1972 | 1.22 | 0.72 | 0.80 | 0.51 | 1.03 | a | 0.29 | 0.35 | 0.84 | 0.51 | 1.28 | 0.75 | 1.45 | 1.45 | a | |||||||||||
1973 | 0.92 | 0.27 | 0.54 | 0.50 | 0.83 | 0.34 | 0.03 | 0.07 | 0.59 | 0.60 | 1.08 | 0.73 | 1.08 | |||||||||||||
1974 | 0.98 | 1.34 | 1.06 | 0.63 | 0.54 | 1.27 | 0.27 | 0.28 | 0.28 | 0.01 | 0.61 | a | 0.86 | 1.34 | a | |||||||||||
1975 | 1.42 | 0.47 | 0.65 | 0.57 | 0.33 | 0.38 | 0.34 | 1.60 | 0.09 | 0.61 | 0.60 | 2.00 | 2.00 | |||||||||||||
1976 | 1.90 | 0.81 | 0.39 | 0.39 | 0.65 | 0.45 | 0.42 | 0.74 | 0.50 | 0.40 | 0.55 | 0.65 | 1.90 | |||||||||||||
1977 | 0.55 | 0.52 | 1.32 | 0.15 | 1.13 | 0.30 | 0.56 | 0.64 | 0.71 | 0.52 | 1.80 | 1.80 | 1.80 | |||||||||||||
1978 | 0.47 | 0.61 | 0.80 | 0.80 | 0.46 | 0.42 | 0.50 | 0.85 | 0.35 | 0.17 | 0.71 | 0.78 | 0.85 | |||||||||||||
1979 | 0.67 | 1.42 | 0.49 | 0.42 | a | 1.14 | 0.56 | 0.44 | 0.57 | 0.13 | 1.07 | 0.72 | 0.72 | 1.42 | a | |||||||||||
1980 | 1.07 | 0.91 | 0.47 | 0.40 | 1.98 | 0.84 | 0.47 | 0.48 | 0.42 | 0.33 | 0.75 | 1.84 | 1.98 | |||||||||||||
1981 | 1.38 | 1.26 | 0.80 | 0.50 | 0.46 | 0.76 | 1.19 | 0.07 | 0.62 | 0.63 | 0.94 | 0.80 | 1.38 | |||||||||||||
1982 | 1.55 | 0.67 | 0.72 | 0.55 | 0.48 | a | 0.75 | 0.43 | 0.34 | 0.74 | 0.52 | 0.93 | 0.85 | 1.55 | a | |||||||||||
1983 | 1.45 | 0.73 | 0.97 | 0.40 | 1.00 | 0.95 | 1.08 | 0.52 | 0.96 | 0.59 | 1.17 | 1.12 | 1.45 | |||||||||||||
1984 | 1.08 | 0.37 | 0.60 | 0.28 | a | 0.42 | 0.62 | 0.03 | 0.47 | 1.36 | 1.36 | 0.65 | 1.20 | 1.36 | a | |||||||||||
1985 | 0.38 | 0.53 | 0.61 | 0.53 | 2.00 | 1.45 | 0.04 | 0.85 | 1.06 | 0.65 | 0.78 | 0.51 | 2.00 | |||||||||||||
1986 | 0.74 | 2.05 | 0.73 | 0.38 | 0.75 | 0.23 | 0.52 | 0.43 | 0.80 | 0.40 | 0.49 | 0.42 | 2.05 | |||||||||||||
1987 | 0.54 | 1.34 | 0.69 | 0.61 | a | 0.84 | a | 0.37 | b | 1.03 | 0.38 | 0.04 | 0.02 | 0.61 | 1.04 | 1.34 | d | |||||||||
1988 | 0.94 | 0.70 | 1.00 | 1.23 | 0.63 | 0.43 | 0.79 | 0.22 | 0.45 | a | 0.70 | 0.70 | c | 0.57 | 1.23 | d | ||||||||||
1989 | 0.92 | 0.36 | 0.62 | 0.47 | 0.80 | 0.76 | a | 0.35 | 0.78 | 0.80 | 0.60 | 0.94 | b | 0.83 | 0.94 | c | ||||||||||
1990 | 1.00 | 2.15 | 1.00 | 0.75 | 1.79 | 1.16 | 0.33 | 0.60 | 0.02 | 1.51 | 1.57 | d | 0.93 | a | 2.15 | e | ||||||||||
1991 | 1.55 | a | 0.68 | 0.54 | g | 1.26 | f | 0.68 | 0.87 | 0.18 | 0.33 | 0.60 | 0.31 | 1.30 | h | 1.62 | b | 1.62 | x | |||||||
1992 | 0.70 | a | 0.82 | 0.15 | 1.04 | b | 0.68 | e | 1.15 | 0.98 | 0.55 | 1.10 | 0.36 | 1.00 | e | 0.65 | 1.15 | m | ||||||||
1993 | 0.55 | b | 0.15 | 1.02 | 0.57 | 1.06 | b | 0.51 | 0.67 | 0.27 | 0.13 | 0.49 | 0.61 | 0.78 | 1.06 | d | ||||||||||
1994 | 0.56 | 0.92 | a | 0.33 | 0.73 | b | 0.76 | b | 0.33 | 0.24 | 0.12 | 0.38 | 1.12 | 2.10 | d | 1.32 | 2.10 | i | ||||||||
1995 | 0.60 | 1.26 | 0.53 | 0.72 | a | 0.50 | 0.73 | 1.11 | 0.86 | 0.74 | b | 1.10 | 3.40 | 1.11 | 3.40 | c | ||||||||||
1996 | 0.82 | 2.00 | 0.42 | 2.00 | 0.65 | d | 0.42 | d | 0.11 | 0.40 | 0.90 | c | 1.03 | b | 0.88 | 2.88 | f | 2.88 | s | |||||||
1997 | 2.05 | 1.05 | a | 1.14 | 1.55 | g | 0.35 | m | 0.56 | a | 2.02 | 0.75 | 1.00 | 0.90 | 0.85 | 0.80 | 2.05 | v | ||||||||
1998 | 0.97 | 0.34 | 0.58 | 0.73 | b | 2.00 | b | 0.65 | 1.15 | 0.17 | 0.72 | d | 0.43 | d | 1.32 | a | 0.91 | b | 2.00 | o | ||||||
1999 | 1.00 | 1.42 | 0.53 | d | 0.18 | 0.59 | d | 0.72 | a | 0.10 | 0.49 | b | 0.21 | a | 0.94 | e | 3.32 | j | 1.04 | ----- | z | |||||
2000 | 0.95 | b | 1.12 | 0.63 | 1.33 | k | 1.02 | h | 0.75 | b | 0.40 | 0.01 | 0.40 | 1.42 | e | 1.00 | l | 0.84 | e | ----- | z | |||||
2001 | 0.45 | 0.74 | 0.34 | c | 0.59 | d | 0.90 | 0.95 | d | 0.42 | 0.05 | 0.10 | 1.00 | b | 2.92 | j | 2.15 | r | ----- | z | ||||||
2002 | 2.65 | m | 1.43 | o | 1.62 | x | 1.71 | h | 0.71 | n | 0.99 | g | 0.28 | 0.37 | 0.22 | 0.44 | b | 1.53 | a | 1.71 | ----- | z | ||||
2003 | 2.08 | e | 2.45 | g | 3.73 | o | 0.66 | 0.68 | 0.41 | 0.28 | 0.17 | 1.09 | 1.10 | 3.38 | y | 1.72 | n | ----- | z | |||||||
2004 | ----- | z | 1.60 | p | 0.82 | g | 0.71 | d | 1.38 | 0.48 | n | 0.34 | 1.21 | b | 0.42 | 1.44 | 3.52 | h | 1.60 | p | ----- | z | ||||
2005 | 2.65 | r | 0.50 | 3.55 | p | 1.31 | r | 1.32 | 0.57 | a | 0.31 | l | 0.12 | 0.06 | u | ----- | z | ----- | z | 0.38 | b | ----- | z | |||
2006 | 1.39 | i | 1.36 | l | 0.68 | m | 1.02 | 1.26 | 1.75 | a | 0.02 | 0.24 | a | 0.90 | 0.70 | 2.73 | 1.52 | b | ----- | z | ||||||
2007 | 0.70 | f | 1.82 | 0.41 | 1.74 | 0.47 | 1.09 | 0.00 | 0.23 | 0.22 | 0.89 | 2.08 | 2.69 | a | 2.69 | g | ||||||||||
2008 | 4.00 | 0.49 | b | 0.88 | 0.91 | 0.70 | 0.91 | 0.11 | 0.82 | 1.33 | 0.44 | 2.33 | 3.99 | e | 4.00 | g | ||||||||||
2009 | 1.94 | b | 1.24 | 1.22 | 1.41 | 0.69 | 1.43 | 0.40 | 0.70 | 0.11 | 0.49 | n | ----- | z | 2.16 | ----- | z | |||||||||
2010 | 0.88 | 1.04 | 0.02 | h | 1.48 | 1.71 | 2.39 | 0.14 | 0.00 | 0.86 | 1.20 | 1.21 | w | 3.05 | ----- | z | ||||||||||
2011 | 4.91 | w | 2.28 | q | ----- | z | 2.12 | 1.05 | 0.65 | j | 0.37 | 0.03 | 0.22 | 0.67 | 1.77 | y | ----- | z | ----- | z | ||||||
2012 | ----- | z | 1.05 | u | ----- | z | 0.67 | w | 0.53 | b | 1.25 | 0.68 | 0.00 | 0.00 | 2.52 | 2.53 | s | 2.87 | y | ----- | z | |||||
2013 | ----- | z | 1.83 | x | ----- | z | ----- | z | ----- | z | 2.30 | u | 0.06 | g | 0.40 | l | 1.18 | n | 0.25 | s | 1.85 | t | 2.64 | u | ----- | z |
2014 | 1.41 | q | ----- | z | 1.30 | x | 0.83 | r | 1.01 | q | 0.92 | n | 0.00 | l | 0.31 | w | ----- | z | 0.78 | p | 1.13 | q | 1.30 | v | ----- | z |
2015 | 2.22 | x | 0.98 | s | 0.76 | t | 0.67 | w | 0.49 | q | 0.04 | u | ----- | z | ----- | z | ----- | z | 0.10 | v | ----- | z | 1.50 | s | ----- | z |
2016 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.42 | y | 0.34 | u | ----- | z | 2.10 | v | ----- | z | ----- | z | ----- | z |
2017 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2018 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.70 | k | 0.07 | i | 0.77 | h | 0.07 | i | 0.83 | h | 1.39 | s | 1.50 | x | ----- | z |
2019 | 3.14 | u | 2.72 | w | 0.47 | r | 1.64 | u | 2.48 | y | 0.97 | k | 0.10 | g | 0.20 | j | 0.87 | e | 1.45 | i | ----- | z | 1.87 | y | ----- | z |
2020 | 3.39 | w | 1.26 | x | ----- | z | ----- | z | ----- | z | 0.91 | r | 0.20 | n | 0.10 | u | 0.47 | i | 1.10 | j | 1.02 | y | ----- | z | ----- | z |
2021 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.50 | t | 0.03 | h | 0.40 | i | 0.59 | m | 0.56 | n | 4.17 | v | ----- | z | ----- | z |
2022 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 3.75 | t | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 1.11 | 0.95 | 0.71 | 0.81 | 0.84 | 0.81 | 0.43 | 0.47 | 0.58 | 0.80 | 1.13 | 1.19 | 1.61 | |||||||||||||
S.D. | 0.60 | 0.50 | 0.27 | 0.47 | 0.43 | 0.43 | 0.40 | 0.41 | 0.37 | 0.45 | 0.65 | 0.67 | 0.49 | |||||||||||||
SKEW | 2.18 | 0.94 | 0.36 | 1.13 | 1.22 | 1.25 | 1.69 | 1.68 | 0.17 | 0.86 | 1.42 | 1.88 | 1.31 | |||||||||||||
MAX | 4.00 | 2.44 | 1.32 | 2.12 | 2.00 | 2.39 | 2.02 | 2.26 | 1.36 | 2.52 | 3.40 | 3.99 | 3.40 | |||||||||||||
MIN | 0.38 | 0.15 | 0.15 | 0.15 | 0.26 | 0.23 | 0.00 | 0.00 | 0.00 | 0.01 | 0.36 | 0.30 | 0.85 | |||||||||||||
YRS | 54 | 55 | 52 | 55 | 58 | 58 | 60 | 61 | 61 | 59 | 50 | 55 | 40 |