YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1974 | ----- | z | ----- | z | ----- | z | ----- | z | 0.97 | 1.36 | 0.63 | 0.00 | 0.08 | 0.46 | 2.12 | 2.65 | ----- | z | ||||||||
1975 | 1.64 | 1.65 | 1.41 | 2.90 | d | 1.38 | 0.22 | 0.12 | 0.95 | 0.02 | 3.65 | d | 2.09 | 2.42 | 3.65 | h | ||||||||||
1976 | 4.10 | 1.90 | 0.14 | n | 0.65 | 0.15 | 0.20 | 0.50 | 0.23 | 0.11 | 0.70 | 0.60 | 0.60 | 4.10 | n | |||||||||||
1977 | 0.30 | a | 1.11 | 0.92 | 0.69 | 0.70 | 0.03 | 0.00 | 1.68 | 1.00 | 1.35 | 2.00 | 2.10 | 2.10 | a | |||||||||||
1978 | 2.10 | a | 2.70 | d | 0.90 | 1.10 | 1.81 | 0.52 | 0.57 | 0.63 | 1.17 | 0.35 | 2.32 | 1.50 | 2.70 | e | ||||||||||
1979 | 2.95 | 1.46 | ----- | z | ----- | z | ----- | z | ----- | z | 0.47 | 0.50 | 0.95 | 1.30 | 1.44 | 2.71 | ----- | z | ||||||||
1980 | 3.38 | a | 1.04 | 1.54 | 1.51 | 0.59 | 0.78 | 0.50 | 0.04 | 0.61 | 0.70 | 1.75 | 3.20 | 3.38 | a | |||||||||||
1981 | 1.60 | a | 1.68 | 1.03 | 0.86 | 1.01 | 1.62 | 0.10 | 0.16 | 2.00 | 1.90 | 1.51 | 5.40 | 5.40 | a | |||||||||||
1982 | 2.65 | 3.96 | 1.41 | 1.85 | 0.20 | 0.60 | 0.14 | 0.15 | 1.20 | 0.85 | 1.50 | 3.15 | d | 3.96 | d | |||||||||||
1983 | 2.00 | 1.90 | 2.30 | d | 0.88 | 0.98 | 1.80 | 1.82 | 1.93 | 0.47 | 1.25 | 7.93 | l | 4.48 | o | ----- | z | |||||||||
1984 | 1.20 | 4.42 | g | 4.28 | x | 3.46 | o | 2.00 | b | 1.50 | 0.50 | 0.34 | 0.52 | 2.60 | n | 7.50 | m | 2.20 | k | ----- | z | |||||
1985 | 0.33 | 2.42 | d | 1.48 | 0.72 | 0.48 | 1.76 | 0.12 | 0.07 | 1.05 | d | 2.40 | 3.10 | r | 1.50 | ----- | z | |||||||||
1986 | 2.00 | 3.70 | g | 1.55 | 1.00 | 1.65 | 0.80 | 0.70 | 0.00 | 1.90 | 1.00 | 6.25 | a | 0.90 | c | 6.25 | k | |||||||||
1987 | 1.20 | 3.40 | e | 2.00 | i | 0.60 | b | 0.80 | 0.10 | 0.30 | 0.20 | 0.25 | 0.50 | 1.45 | 4.10 | k | ----- | z | ||||||||
1988 | 2.40 | d | 2.35 | c | 1.20 | d | 1.30 | 1.40 | c | 0.72 | 0.13 | 0.00 | 0.95 | 0.20 | 7.25 | m | 8.00 | i | ----- | z | ||||||
1989 | 2.55 | c | 1.20 | b | 5.75 | k | 0.65 | 0.90 | 0.30 | 0.45 | 1.75 | 0.00 | 3.30 | g | 3.70 | e | 0.75 | ----- | z | |||||||
1990 | 4.40 | g | 2.50 | f | 2.15 | f | 1.60 | b | 1.90 | c | 1.60 | e | 0.40 | 1.65 | a | 0.00 | 2.80 | b | 2.35 | h | 1.50 | c | ----- | z | ||
1991 | 6.00 | k | 1.95 | f | 4.00 | f | 2.60 | c | 1.75 | a | 0.25 | 0.05 | 0.90 | ----- | z | 1.30 | 2.20 | f | 2.60 | o | ----- | z | ||||
1992 | 1.45 | d | 1.85 | c | 1.10 | 2.50 | b | 0.00 | 0.35 | 0.30 | 0.20 | 0.58 | 1.30 | 3.80 | j | 7.00 | p | ----- | z | |||||||
1993 | 3.90 | l | 2.00 | 2.55 | d | 5.50 | k | 1.30 | a | 0.75 | a | 2.20 | 0.50 | 0.00 | 0.25 | 1.00 | b | 4.10 | g | ----- | z | |||||
1994 | 2.30 | f | 2.00 | c | 1.55 | 1.60 | a | 1.90 | 0.53 | a | 0.00 | 0.07 | 0.54 | 2.00 | 2.10 | f | 2.71 | j | ----- | z | ||||||
1995 | 6.00 | n | 1.85 | f | 4.29 | j | 2.21 | d | 0.82 | d | 0.80 | 0.13 | 0.26 | a | 0.86 | 1.84 | 3.04 | c | 3.53 | d | ----- | z | ||||
1996 | 2.31 | d | 3.80 | 1.48 | 2.02 | b | 1.59 | 0.43 | 0.45 | 0.28 | 1.48 | 1.23 | a | 6.65 | 3.62 | 6.65 | g | |||||||||
1997 | 3.43 | 1.20 | a | 1.92 | c | 1.34 | 1.27 | 0.85 | a | 0.27 | 0.87 | 1.50 | 1.98 | a | 1.21 | c | 1.49 | 3.43 | i | |||||||
1998 | 3.38 | b | 2.05 | a | 2.23 | 1.09 | a | 1.90 | b | 0.57 | 0.03 | 0.00 | 0.29 | 0.87 | 5.83 | f | 3.75 | d | 5.83 | p | ||||||
1999 | 2.36 | b | 2.10 | a | 1.40 | 0.58 | 1.25 | 0.26 | 0.06 | 0.51 | 0.13 | 1.91 | 2.48 | b | 1.31 | 2.48 | e | |||||||||
2000 | 2.20 | 1.57 | a | 0.66 | 0.79 | 0.84 | 0.72 | 0.20 | 0.28 | 0.35 | 1.13 | a | 0.80 | a | 2.00 | 2.20 | c | |||||||||
2001 | 0.53 | 1.03 | 1.05 | 1.26 | 2.30 | 0.85 | 0.61 | 0.75 | 0.20 | 1.72 | a | 3.10 | m | 2.95 | 3.10 | n | ||||||||||
2002 | 2.40 | 1.90 | 1.20 | 2.20 | 0.42 | 1.19 | 0.03 | 0.06 | 0.75 | 0.42 | 2.32 | 4.07 | 4.07 | |||||||||||||
2003 | 1.20 | 1.50 | 1.60 | 1.84 | 1.02 | 0.10 | 0.00 | 0.13 | 0.77 | 0.50 | 1.20 | 4.07 | 4.07 | |||||||||||||
2004 | 1.38 | 1.85 | 1.15 | 1.16 | 0.94 | 0.57 | 0.16 | 0.80 | 2.03 | 1.02 | 0.79 | 2.87 | 2.87 | |||||||||||||
2005 | 1.90 | 1.02 | 2.42 | 1.08 | 1.78 | 1.45 | 0.50 | 0.03 | 0.69 | 1.00 | 1.85 | 2.43 | 2.43 | |||||||||||||
2006 | 2.62 | 1.70 | 1.72 | 0.68 | 0.90 | a | 0.37 | 0.20 | 0.00 | 0.42 | 0.92 | 2.68 | 2.59 | 2.68 | a | |||||||||||
2007 | 2.76 | 1.98 | ----- | z | 0.63 | 1.05 | 0.31 | 0.30 | 1.29 | 0.87 | 1.77 | 3.15 | 2.90 | p | ----- | z | ||||||||||
2008 | 2.20 | u | 1.69 | 1.59 | 0.94 | 0.25 | 0.80 | 0.02 | 0.42 | 0.10 | 1.15 | 1.63 | 3.00 | 3.00 | u | |||||||||||
2009 | 1.13 | 1.61 | 1.47 | 1.28 | 1.10 | 0.33 | 0.00 | 0.02 | 0.65 | 1.20 | a | 1.30 | 1.93 | 1.93 | a | |||||||||||
2010 | 1.95 | 1.19 | 1.77 | 2.06 | 0.79 | i | 1.50 | 0.00 | 0.25 | 0.43 | 1.32 | 2.00 | 2.50 | d | 2.50 | m | ||||||||||
2011 | 2.03 | 3.00 | 1.16 | 1.35 | d | 1.20 | 0.83 | 1.82 | p | 0.00 | 0.62 | 1.20 | 1.60 | b | 3.77 | 3.77 | v | |||||||||
2012 | 3.82 | 1.33 | 2.68 | 1.38 | a | 0.68 | 1.14 | 0.22 | 0.25 | 0.01 | 3.33 | 3.25 | 1.87 | 3.82 | a | |||||||||||
2013 | 1.25 | 0.98 | 1.30 | 0.94 | 1.23 | 0.34 | 0.00 | 0.19 | 2.00 | 0.90 | 1.35 | 0.35 | 2.00 | |||||||||||||
2014 | 1.26 | 1.80 | 1.20 | 0.80 | 0.88 | 0.52 | 0.42 | 0.22 | 1.66 | 1.75 | 1.75 | 2.52 | 2.52 | |||||||||||||
2015 | 1.44 | 1.86 | 1.06 | 2.72 | r | 0.30 | 0.15 | 0.00 | 0.49 | 0.62 | 1.02 | 5.89 | x | 7.62 | p | ----- | z | |||||||||
2016 | 5.62 | r | ----- | z | ----- | z | ----- | z | 0.12 | 0.20 | 0.34 | 0.00 | 0.06 | 1.85 | 3.75 | l | 2.37 | ----- | z | |||||||
2017 | 1.94 | 2.05 | 1.95 | 0.88 | 0.51 | 0.54 | 0.03 | 0.02 | 0.46 | 0.48 | 1.03 | 1.55 | 2.05 | |||||||||||||
2018 | 1.28 | 0.98 | 1.57 | 1.17 | 0.20 | 0.34 | 0.00 | 0.19 | 0.40 | 1.08 | 1.86 | ----- | z | ----- | z | |||||||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 2.01 | 1.86 | 1.52 | 1.30 | 1.03 | 0.70 | 0.32 | 0.43 | 0.70 | 1.30 | 2.11 | 2.44 | 3.03 | |||||||||||||
S.D. | 0.92 | 0.73 | 0.49 | 0.61 | 0.59 | 0.50 | 0.43 | 0.52 | 0.59 | 0.76 | 1.34 | 1.12 | 1.03 | |||||||||||||
SKEW | 0.29 | 1.25 | 0.75 | 0.91 | 0.16 | 0.78 | 2.88 | 1.56 | 0.85 | 1.12 | 2.07 | 0.30 | 0.78 | |||||||||||||
MAX | 4.10 | 3.96 | 2.68 | 2.90 | 2.30 | 1.80 | 2.20 | 1.93 | 2.03 | 3.65 | 6.65 | 5.40 | 5.40 | |||||||||||||
MIN | 0.30 | 0.98 | 0.66 | 0.58 | 0.00 | 0.03 | 0.00 | 0.00 | 0.00 | 0.20 | 0.60 | 0.35 | 1.93 | |||||||||||||
YRS | 37 | 38 | 34 | 39 | 43 | 44 | 44 | 45 | 44 | 43 | 33 | 34 | 15 |