YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1977 | ----- | z | 0.01 | 0.06 | 0.02 | 0.18 | 0.00 | 0.00 | 1.36 | 0.37 | 0.07 | 0.00 | 0.33 | 2.40 | a | |||||||||||
1978 | 2.23 | 0.53 | 0.58 | 0.10 | 0.00 | 0.00 | 0.00 | 1.19 | 0.00 | 1.67 | 1.10 | 1.27 | 8.67 | |||||||||||||
1979 | 1.33 | 0.17 | 0.34 | 0.00 | 0.28 | 0.00 | 0.41 | 1.65 | 0.49 | 0.02 | 0.00 | 0.13 | 4.82 | |||||||||||||
1980 | ----- | z | 2.25 | 0.60 | 0.17 | 0.03 | 0.00 | 0.00 | 3.80 | 0.06 | 0.00 | 0.00 | 0.11 | 7.02 | a | |||||||||||
1981 | 0.01 | 0.15 | 0.51 | 0.00 | 0.15 | 0.00 | 0.07 | 0.12 | 0.47 | 0.04 | 0.54 | 0.00 | 2.06 | |||||||||||||
1982 | 0.09 | 0.28 | 0.71 | 0.00 | 0.54 | 0.00 | 0.00 | 1.68 | 0.13 | 0.00 | 0.55 | 1.25 | 5.23 | |||||||||||||
1983 | 0.27 | 0.30 | 0.64 | 0.02 | 0.00 | 0.00 | 0.00 | 3.54 | 1.18 | 0.56 | 0.04 | 0.76 | 7.31 | |||||||||||||
1984 | 0.04 | 0.00 | 0.00 | 0.00 | 0.02 | 0.00 | 1.19 | 0.72 | 0.00 | 0.00 | 0.54 | 3.16 | 5.67 | |||||||||||||
1985 | 0.30 | 0.20 | 0.04 | 0.07 | 0.00 | 0.00 | 0.18 | 0.00 | 1.55 | ----- | z | 1.67 | 0.07 | 4.08 | a | |||||||||||
1986 | 0.20 | 0.98 | 0.21 | ----- | z | 0.00 | 0.00 | 3.20 | 0.40 | 1.26 | 0.24 | 0.35 | 0.32 | 7.16 | a | |||||||||||
1987 | 0.13 | 0.40 | 0.00 | 0.00 | ----- | z | 0.42 | 0.15 | 0.12 | 0.22 | 0.74 | 0.92 | ----- | z | 3.10 | b | ||||||||||
1988 | 0.63 | 0.73 | 0.00 | 1.08 | 0.00 | 0.00 | 0.00 | 5.45 | 0.00 | 0.27 | 0.00 | 0.01 | 8.17 | |||||||||||||
1989 | 1.00 | 0.00 | 0.07 | 0.00 | 0.30 | 0.00 | 0.00 | 0.32 | 0.00 | 0.30 | 0.00 | 0.00 | 1.99 | |||||||||||||
1990 | 0.60 | 0.12 | 0.13 | 0.02 | 0.01 | 0.30 | 0.86 | 1.15 | 1.84 | 0.08 | 0.00 | 0.00 | 5.11 | |||||||||||||
1991 | 0.09 | 1.00 | 1.99 | 0.00 | 0.00 | 0.00 | 0.00 | 0.20 | 0.00 | 0.25 | 0.22 | 0.09 | 3.84 | |||||||||||||
1992 | 0.76 | 1.29 | 2.20 | 0.05 | 0.59 | 0.00 | 0.00 | 1.25 | 0.14 | 1.60 | 0.00 | 3.34 | 11.22 | |||||||||||||
1993 | 2.87 | 1.14 | b | 0.26 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.18 | 0.76 | 0.10 | 5.31 | ||||||||||||
1994 | 0.02 | 0.58 | 0.94 | 0.02 | 0.07 | 0.00 | 0.75 | 0.40 | 0.00 | 0.20 | 0.08 | 1.36 | 4.42 | |||||||||||||
1995 | 1.07 | 0.81 | 0.12 | 0.24 | 0.00 | 0.00 | 0.03 | 0.05 | 0.14 | 0.00 | 0.00 | 0.01 | 2.47 | |||||||||||||
1996 | 0.04 | 0.34 | 0.02 | 0.00 | 0.00 | 0.00 | 0.00 | 0.70 | 4.77 | 0.00 | 0.06 | 1.00 | 6.93 | |||||||||||||
1997 | 0.98 | 0.00 | 0.00 | 0.04 | 0.00 | 0.00 | 0.32 | 0.02 | 1.35 | 0.00 | 0.04 | 1.40 | 4.15 | |||||||||||||
1998 | 0.17 | 1.64 | 1.26 | 0.00 | 0.00 | 0.00 | 0.57 | 0.10 | 1.98 | 0.13 | 0.15 | 0.10 | 6.10 | |||||||||||||
1999 | 0.05 | 0.50 | 0.00 | 1.08 | 0.00 | 0.07 | 0.47 | 0.03 | 1.24 | 0.00 | 0.00 | 0.00 | 3.44 | |||||||||||||
2000 | 0.00 | 0.22 | 0.11 | 0.00 | 0.00 | 0.00 | 0.00 | 0.53 | 0.00 | 0.45 | ----- | z | 0.00 | 1.31 | a | |||||||||||
2001 | 1.36 | 0.65 | 1.72 | 0.00 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 3.73 | h | ||||
2002 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | 0.00 | 0.00 | ----- | z | 0.00 | ----- | z | ----- | z | 0.00 | h | ||||
2003 | ----- | z | 0.75 | c | ----- | z | ----- | z | 0.00 | 0.00 | ----- | z | ----- | z | ----- | z | 0.00 | ----- | z | ----- | z | 0.75 | h | |||
2004 | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | f | 0.00 | 0.00 | ----- | z | 0.90 | 1.32 | 0.08 | ----- | z | 2.30 | g | |||||
2005 | ----- | z | 2.70 | ----- | z | ----- | z | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | b | 0.00 | 0.00 | 2.70 | c | ||||||||
2006 | 0.00 | 0.00 | 0.16 | 0.00 | ----- | z | 0.00 | ----- | z | 1.00 | ----- | z | ----- | z | ----- | z | 0.00 | 1.16 | e | |||||||
2007 | ----- | z | ----- | z | 0.00 | ----- | z | 0.00 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | j | ||
2008 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | ----- | z | 0.00 | ----- | z | 0.00 | 0.01 | e | 0.00 | 0.01 | b | |||||||||
2009 | ----- | z | ----- | z | ----- | z | 0.00 | 0.00 | 0.00 | y | 0.00 | ----- | z | 0.03 | 0.00 | 0.00 | 0.00 | 0.03 | e | |||||||
2010 | ----- | z | ----- | z | ----- | z | 0.00 | 0.00 | 0.00 | 0.00 | 0.57 | 0.00 | 0.09 | 0.00 | 0.86 | 1.52 | c | |||||||||
2011 | 0.00 | a | 1.50 | 0.30 | b | 0.00 | a | 0.00 | 0.00 | 0.97 | 0.00 | 0.10 | 0.15 | 0.56 | 0.96 | 4.54 | ||||||||||
2012 | 0.04 | 0.00 | 0.35 | 0.04 | 0.00 | 0.00 | 1.71 | 2.18 | 1.17 | 0.21 | 0.00 | 0.76 | 6.46 | |||||||||||||
2013 | 0.90 | 0.00 | 0.06 | a | 0.00 | 0.00 | j | 0.00 | m | 2.14 | u | 0.14 | S | 0.66 | s | 0.00 | p | 1.03 | m | 0.00 | s | 0.96 | h | |||
2014 | 0.00 | r | 0.43 | m | 0.00 | t | 0.01 | q | 0.00 | w | 0.00 | m | 0.00 | m | ----- | z | ----- | z | 0.00 | w | 0.00 | q | 0.13 | o | 0.00 | l |
2015 | 0.28 | t | 0.12 | o | 0.00 | u | 0.00 | r | 0.42 | t | ----- | z | ----- | z | ----- | z | 0.40 | r | 0.00 | q | 0.07 | s | 0.00 | r | 0.00 | l |
2016 | 0.25 | t | 0.00 | u | 0.00 | u | 0.12 | x | 0.00 | q | 0.00 | 0.00 | x | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | k | |
2017 | ----- | z | 0.30 | y | ----- | z | ----- | z | 0.00 | h | 0.00 | a | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | e | ||||||
2018 | 0.00 | a | 0.00 | f | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | k |
2019 | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l | 0.00 | 0.00 | 0.00 | ----- | z | 0.00 | ----- | z | ----- | z | 0.00 | h | ||||
2020 | 0.00 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | k | |
2021 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.51 | 0.60 | 0.43 | 0.10 | 0.07 | 0.02 | 0.33 | 0.86 | 0.63 | 0.25 | 0.25 | 0.56 | 5.40 | |||||||||||||
S.D. | 0.71 | 0.68 | 0.60 | 0.27 | 0.15 | 0.09 | 0.66 | 1.27 | 0.99 | 0.44 | 0.41 | 0.87 | 2.31 | |||||||||||||
SKEW | 1.78 | 1.46 | 1.75 | 3.32 | 2.38 | 3.95 | 2.89 | 2.10 | 2.56 | 2.28 | 1.92 | 2.00 | 0.66 | |||||||||||||
MAX | 2.87 | 2.70 | 2.20 | 1.08 | 0.59 | 0.42 | 3.20 | 5.45 | 4.77 | 1.67 | 1.67 | 3.34 | 11.22 | |||||||||||||
MIN | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 1.99 | |||||||||||||
YRS | 30 | 32 | 31 | 31 | 31 | 36 | 33 | 33 | 31 | 34 | 31 | 31 | 20 |