YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1961 | ----- | z | 0.92 | f | 1.45 | 0.53 | 1.68 | 0.99 | 0.37 | 0.13 | 0.42 | 0.75 | 1.73 | 1.00 | 9.05 | b | ||||||||||
1962 | 0.96 | 0.85 | 1.07 | 1.08 | 2.78 | 0.10 | 0.00 | 0.25 | 0.47 | 1.93 | 1.16 | 0.58 | 11.23 | |||||||||||||
1963 | 0.95 | 1.79 | 0.48 | 2.17 | 0.59 | 0.60 | a | 0.23 | 0.27 | a | 1.39 | 0.44 | 1.92 | 1.38 | 12.21 | |||||||||||
1964 | 1.45 | 0.07 | 0.76 | 0.58 | 0.56 | ----- | z | 0.98 | ----- | z | 0.16 | 0.88 | 1.58 | 4.92 | 11.94 | b | ||||||||||
1965 | 3.26 | 0.16 | 0.77 | 1.29 | 0.51 | ----- | z | 1.44 | 2.14 | 0.13 | 0.20 | 1.57 | 0.28 | 11.75 | a | |||||||||||
1966 | 1.27 | 0.88 | 0.48 | 0.29 | 0.42 | 1.60 | 1.52 | 0.03 | 1.66 | 0.73 | 2.27 | 1.63 | 12.78 | |||||||||||||
1967 | 1.43 | 0.27 | 0.91 | 1.94 | 1.69 | 0.53 | 0.00 | 0.13 | 0.27 | 1.17 | 0.76 | 0.57 | 9.67 | |||||||||||||
1968 | 0.93 | 0.91 | 0.14 | 0.52 | 1.24 | 0.78 | 0.17 | 1.43 | 0.37 | 0.88 | 3.26 | 2.16 | 12.79 | |||||||||||||
1969 | 1.28 | 0.99 | 0.59 | 2.18 | 1.32 | 3.06 | 0.24 | 0.00 | 0.54 | 1.22 | 0.46 | 1.49 | 13.37 | |||||||||||||
1970 | 3.64 | 0.80 | 1.68 | 0.65 | 0.81 | 1.64 | 0.55 | 0.00 | 1.16 | 1.29 | 1.74 | 1.25 | 15.21 | |||||||||||||
1971 | 1.91 | 0.44 | 1.15 | 1.57 | 0.49 | 1.22 | 0.07 | 0.60 | 0.71 | 1.94 | 2.43 | 2.18 | 14.71 | |||||||||||||
1972 | 1.13 | 0.53 | 1.86 | 0.83 | 1.80 | 1.31 | 0.01 | 0.37 | 0.56 | 0.78 | 1.05 | 1.56 | 11.79 | |||||||||||||
1973 | 0.80 | 0.82 | 0.76 | 0.45 | 1.72 | 0.11 | 0.04 | 0.16 | 1.79 | 1.02 | 3.29 | 2.44 | 13.40 | |||||||||||||
1974 | 0.90 | 1.13 | 1.24 | 1.21 | 0.23 | 0.13 | 0.57 | 0.09 | 0.00 | 0.24 | 0.95 | 1.89 | 8.58 | |||||||||||||
1975 | 1.99 | 1.19 | 1.29 | 1.04 | 0.93 | 0.68 | 1.11 | 0.84 | 0.01 | 2.21 | 0.47 | 2.00 | 13.76 | |||||||||||||
1976 | 2.23 | 0.81 | 0.96 | 1.94 | 0.31 | 0.59 | 0.10 | 2.83 | 1.21 | 0.33 | 0.47 | 0.16 | 11.94 | |||||||||||||
1977 | 0.47 | 0.63 | 1.07 | 0.49 | 3.06 | 0.63 | 0.13 | 1.01 | 1.40 | 0.60 | 2.19 | 1.75 | 13.43 | |||||||||||||
1978 | 1.31 | 1.13 | 1.33 | 2.56 | 1.49 | 1.24 | 1.11 | 1.22 | 0.76 | 0.00 | 1.39 | 2.01 | 15.55 | |||||||||||||
1979 | 1.40 | 1.41 | 1.83 | 2.53 | 1.93 | 0.30 | 0.00 | 1.58 | 0.01 | 1.26 | 1.90 | 0.55 | 14.70 | |||||||||||||
1980 | 1.69 | 1.30 | 1.79 | 0.57 | 2.02 | 2.40 | 0.15 | 0.35 | 0.55 | 0.47 | 1.10 | 1.54 | a | 13.93 | ||||||||||||
1981 | 0.77 | 1.50 | 2.86 | 1.46 | 3.40 | 1.67 | 0.47 | 0.01 | 0.99 | 0.98 | 2.04 | a | 2.62 | d | 18.77 | |||||||||||
1982 | 1.67 | d | 1.42 | 0.89 | 0.46 | p | 0.66 | 2.62 | 0.96 | 0.57 | 1.75 | 2.30 | 1.00 | 1.73 | 15.57 | a | ||||||||||
1983 | 1.71 | 1.98 | 3.73 | 1.98 | 2.21 | 2.10 | 0.79 | 1.00 | 0.07 | 1.41 | 1.41 | 2.89 | b | 21.28 | ||||||||||||
1984 | 0.73 | 1.78 | 3.10 | 2.50 | 1.38 | 1.94 | 0.12 | 2.07 | 0.99 | 1.49 | 2.10 | 1.44 | 19.64 | |||||||||||||
1985 | 0.38 | 1.03 | 0.64 | 0.89 | 1.21 | 0.22 | 0.29 | 0.56 | 0.95 | 1.04 | 1.42 | 1.04 | 9.67 | |||||||||||||
1986 | 1.57 | 3.01 | 0.87 | 0.60 | 1.83 | 0.22 | 0.30 | 0.08 | 1.38 | 0.82 | 1.88 | 0.39 | 12.95 | |||||||||||||
1987 | 1.31 | 1.18 | 1.94 | 0.39 | 1.48 | 1.17 | 1.87 | 0.09 | 0.09 | a | 0.00 | a | 0.70 | 0.71 | 10.93 | |||||||||||
1988 | 1.71 | 0.61 | 1.10 | 2.50 | 1.18 | 0.96 | 0.00 | 0.00 | 0.20 | 0.00 | 2.96 | g | 0.77 | c | 9.03 | a | ||||||||||
1989 | 2.52 | b | 1.34 | f | 2.03 | 1.91 | 2.13 | g | 0.77 | 0.17 | 1.54 | 0.55 | c | 0.66 | 0.58 | b | 0.43 | 11.16 | b | |||||||
1990 | 0.80 | e | 0.18 | c | 1.23 | 2.00 | a | 1.12 | c | 0.63 | a | 0.11 | a | 2.00 | 0.00 | 0.68 | a | 0.95 | c | 1.21 | e | 10.91 | ||||
1991 | 0.56 | 0.79 | d | 2.00 | e | 1.49 | 1.91 | 1.75 | a | 1.48 | 1.10 | 0.00 | 0.87 | 2.68 | d | 0.63 | b | 15.26 | ||||||||
1992 | 0.23 | 0.48 | 0.84 | 0.71 | 0.38 | 1.38 | 2.35 | b | 0.11 | 0.24 | 0.72 | 2.06 | 0.89 | a | 10.39 | |||||||||||
1993 | 1.48 | h | 0.98 | a | 2.09 | b | 2.30 | 2.04 | c | 2.69 | 1.58 | 0.78 | a | 0.00 | 0.54 | 0.51 | h | 1.08 | 14.08 | b | ||||||
1994 | 1.00 | 1.05 | c | 0.81 | 1.17 | 2.29 | a | 1.14 | 0.54 | 0.01 | 0.98 | 0.75 | a | 1.53 | b | 1.10 | c | 12.37 | ||||||||
1995 | 2.23 | a | 1.31 | a | 2.04 | 2.51 | 0.96 | 2.44 | a | 0.19 | a | 0.36 | a | 0.44 | 0.59 | 2.82 | c | 1.82 | e | 17.71 | ||||||
1996 | 1.72 | d | 1.41 | 0.93 | 1.11 | a | 2.20 | 1.18 | a | 0.30 | a | 1.37 | 0.96 | 1.38 | 2.88 | b | 2.55 | b | 17.99 | |||||||
1997 | 2.00 | a | 0.79 | 0.95 | a | 2.22 | 0.92 | 1.85 | a | 1.12 | 0.10 | 0.57 | a | 0.70 | 0.48 | c | 0.69 | 12.39 | ||||||||
1998 | 2.96 | 0.93 | 1.10 | 1.02 | a | 3.35 | a | 1.21 | 0.27 | 0.00 | 0.26 | b | 1.00 | 2.05 | b | 1.58 | 15.73 | |||||||||
1999 | 1.44 | b | 1.88 | a | 0.84 | 0.64 | c | 0.71 | b | 0.67 | 0.00 | 2.21 | a | 0.00 | 1.00 | 0.95 | a | 0.49 | b | 10.83 | ||||||
2000 | 1.95 | a | 1.54 | c | 2.00 | d | 0.28 | 1.02 | b | 0.88 | 0.51 | 0.00 | 0.87 | 1.81 | a | 1.15 | 0.72 | 12.73 | ||||||||
2001 | 0.90 | a | 0.57 | a | 1.44 | c | 1.40 | a | 0.49 | 0.95 | a | 1.30 | 0.09 | 0.39 | a | 1.22 | a | 1.20 | c | 1.48 | 11.43 | |||||
2002 | 1.35 | 0.26 | 0.71 | a | 0.81 | a | 0.82 | 0.81 | a | 0.12 | 0.27 | 0.21 | 0.18 | 0.19 | 1.88 | 7.61 | ||||||||||
2003 | 2.19 | a | 1.45 | a | 1.20 | c | 2.01 | 1.36 | 0.16 | 0.00 | 0.30 | 0.69 | 0.55 | 0.38 | a | 3.54 | 13.83 | |||||||||
2004 | 1.98 | 0.83 | 0.51 | 1.43 | 4.38 | 0.85 | 0.68 | 1.18 | 0.24 | 1.14 | 0.82 | a | 1.22 | 15.26 | ||||||||||||
2005 | 0.28 | a | 1.09 | 0.62 | a | 1.64 | a | 3.22 | 1.03 | 0.15 | a | 0.08 | 0.02 | 1.88 | a | 2.06 | a | 1.91 | c | 13.98 | ||||||
2006 | 2.25 | a | 0.74 | 1.17 | b | 1.55 | a | 1.78 | b | 1.50 | 0.00 | 0.75 | 0.36 | 0.66 | a | 1.55 | d | 1.35 | a | 13.66 | ||||||
2007 | 0.62 | 1.11 | c | 1.11 | 1.35 | b | 0.42 | b | 1.14 | b | 0.01 | a | 0.22 | b | 0.79 | 2.01 | d | 1.39 | f | 1.27 | e | 10.05 | a | |||
2008 | 0.49 | 0.42 | i | 1.31 | f | 0.48 | d | 1.22 | 0.90 | e | 0.01 | 0.56 | b | 0.03 | a | 0.64 | j | 1.58 | e | 0.61 | i | 5.27 | d | |||
2009 | 0.93 | g | 0.59 | f | 2.57 | i | 1.45 | b | 1.30 | c | 0.73 | b | 0.23 | c | 1.60 | b | 0.10 | c | 1.07 | d | 0.72 | a | 1.04 | f | 7.20 | d |
2010 | 1.81 | g | 1.21 | e | 1.17 | i | 1.80 | b | 2.17 | i | 2.59 | d | 0.00 | 0.12 | 1.21 | b | 1.53 | g | 1.84 | l | 3.02 | j | 6.93 | f | ||
2011 | 1.58 | j | 0.74 | k | 2.38 | j | 0.73 | S | 3.35 | f | 1.66 | i | 0.28 | h | 0.07 | l | 0.05 | f | 1.03 | i | 0.59 | q | 0.60 | S | 0.00 | l |
2012 | 0.77 | u | 0.77 | f | 1.63 | S | 2.11 | i | 0.67 | i | 1.82 | i | 0.78 | h | 0.00 | d | 0.00 | g | 1.08 | l | 1.56 | m | 1.91 | l | 0.00 | k |
2013 | 1.32 | f | 0.32 | g | 0.62 | h | 0.49 | e | 1.49 | f | 1.38 | e | 0.00 | g | 0.85 | S | 2.70 | f | 0.78 | k | 0.20 | q | 0.42 | h | 2.72 | i |
2014 | 0.99 | d | 1.46 | f | 1.20 | o | 1.74 | j | 1.55 | n | 0.73 | l | 0.53 | o | 0.31 | s | 0.56 | k | 0.59 | n | 0.73 | t | 0.72 | y | 0.99 | k |
2015 | 0.58 | m | 0.15 | o | 2.35 | v | 0.50 | i | 1.66 | m | 0.20 | m | 0.49 | k | 0.00 | m | 0.30 | n | 0.13 | s | 1.94 | r | 2.68 | m | 0.00 | l |
2016 | 1.39 | n | 0.69 | m | 1.60 | j | 0.48 | u | 0.95 | u | 0.00 | 0.61 | 0.11 | 0.38 | 1.77 | d | 0.65 | o | ----- | z | 2.87 | g | ||||
2017 | 0.00 | q | 0.00 | 1.40 | i | 1.94 | b | 0.43 | a | 0.91 | 0.00 | 0.10 | 0.36 | 1.21 | b | 1.25 | ----- | z | 6.20 | c | ||||||
2018 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
2019 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
2020 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 1.43 | 1.00 | 1.28 | 1.34 | 1.45 | 1.14 | 0.49 | 0.63 | 0.57 | 0.98 | 1.49 | 1.46 | 13.45 | |||||||||||||
S.D. | 0.76 | 0.56 | 0.71 | 0.70 | 0.93 | 0.75 | 0.57 | 0.72 | 0.51 | 0.58 | 0.78 | 0.90 | 2.92 | |||||||||||||
SKEW | 0.76 | 0.83 | 1.35 | 0.18 | 1.03 | 0.70 | 1.35 | 1.21 | 0.78 | 0.44 | 0.46 | 1.41 | 0.59 | |||||||||||||
MAX | 3.64 | 3.01 | 3.73 | 2.56 | 4.38 | 3.06 | 2.35 | 2.83 | 1.79 | 2.30 | 3.29 | 4.92 | 21.28 | |||||||||||||
MIN | 0.23 | 0.00 | 0.14 | 0.28 | 0.23 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.19 | 0.16 | 7.61 | |||||||||||||
YRS | 47 | 47 | 47 | 51 | 49 | 51 | 52 | 53 | 52 | 50 | 47 | 47 | 39 |