YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1967 | ----- | z | ----- | z | 0.13 | 0.00 | 1.01 | 0.39 | 0.52 | 0.16 | 0.31 | 0.02 | 0.07 | 1.12 | 3.73 | b | ||||||||||
1968 | 0.22 | 0.18 | 0.19 | 0.25 | 0.07 | 0.09 | 0.05 | 0.37 | 0.02 | 0.46 | 0.12 | 0.15 | 2.17 | |||||||||||||
1969 | 0.86 | 0.91 | 0.39 | 0.00 | 0.45 | 0.21 | 1.75 | 0.44 | 0.02 | a | 1.82 | 0.49 | 0.19 | 7.53 | ||||||||||||
1970 | 0.04 | 0.00 | 1.11 | 0.06 | 0.00 | 0.13 | 0.43 | 0.43 | 0.72 | 0.81 | 0.25 | 0.18 | 4.16 | |||||||||||||
1971 | 0.03 | 0.26 | 0.08 | 0.05 | 0.10 | 0.00 | 0.00 | 0.51 | 0.22 | 1.32 | 0.83 | 0.32 | 3.72 | |||||||||||||
1972 | 0.00 | 0.00 | 0.00 | 0.01 | 0.00 | 1.03 | 0.23 | 0.39 | 0.48 | 6.53 | 1.24 | 0.58 | 10.49 | |||||||||||||
1973 | 0.62 | 0.44 | 0.88 | 0.18 | 1.18 | 0.79 | 0.07 | 0.12 | 0.27 | 0.04 | 0.23 | 0.20 | 5.02 | |||||||||||||
1974 | 1.02 | 0.00 | 0.52 | 0.09 | 0.00 | 0.00 | 0.80 | 0.00 | 0.36 | 1.13 | 0.87 | 0.42 | 5.21 | |||||||||||||
1975 | 0.30 | 0.51 | 0.67 | 1.47 | 0.66 | 0.11 | 0.53 | 0.19 | 0.06 | 0.62 | 0.53 | 0.44 | 6.09 | |||||||||||||
1976 | 0.00 | 0.69 | 0.48 | 0.17 | 1.37 | 0.00 | 0.19 | 0.08 | 0.71 | 0.02 | 0.06 | 0.00 | 3.77 | |||||||||||||
1977 | 0.45 | 0.04 | 0.11 | 0.00 | 0.06 | 0.00 | 0.41 | 0.64 | 0.99 | 0.12 | 0.08 | 0.32 | 3.22 | |||||||||||||
1978 | 1.74 | 0.28 | b | 1.24 | 0.69 | 0.54 | 0.13 | 0.02 | 0.43 | 0.89 | 1.43 | 1.70 | 2.37 | 11.46 | ||||||||||||
1979 | 1.87 | 0.57 | 1.39 | 0.31 | 1.89 | 0.00 | 0.04 | 0.57 | 0.00 | 0.33 | 1.97 | 1.17 | 10.11 | |||||||||||||
1980 | 1.98 | 1.27 | 1.49 | 0.44 | 0.52 | 0.00 | 0.08 | 0.50 | 0.61 | 0.50 | 0.07 | 0.55 | 8.01 | |||||||||||||
1981 | 0.02 | 0.16 | 1.11 | 0.09 | 0.53 | 0.12 | 0.51 | 0.77 | 1.44 | 2.08 | 1.14 | 0.11 | 8.08 | |||||||||||||
1982 | 0.43 | a | 0.69 | 0.30 | d | 0.06 | 0.10 | 0.00 | c | 0.06 | 1.08 | 0.52 | 0.11 | b | 1.28 | 0.36 | 4.99 | |||||||||
1983 | 0.56 | 0.40 | 2.35 | 0.30 | b | 0.17 | 0.25 | a | 0.47 | 0.52 | 1.17 | 0.69 | b | 0.99 | b | 0.19 | b | 8.06 | ||||||||
1984 | 0.06 | a | 0.10 | 0.54 | 0.13 | 0.00 | 0.30 | 1.00 | 0.59 | g | 0.03 | 1.00 | a | 0.02 | a | 1.22 | c | 4.40 | a | |||||||
1985 | 0.45 | 0.25 | 1.37 | 0.71 | 0.31 | 0.10 | 0.96 | 0.04 | 1.42 | 1.05 | 0.94 | 0.00 | 7.60 | |||||||||||||
1986 | 0.00 | b | 0.13 | 0.10 | 0.48 | 0.25 | 0.00 | 0.82 | 0.48 | 1.55 | 0.79 | 0.49 | 0.71 | 5.80 | ||||||||||||
1987 | 0.56 | a | 0.63 | 0.43 | 0.15 | 0.29 | 0.00 | 0.34 | d | 1.18 | 0.12 | 1.71 | 0.84 | 0.26 | a | 6.51 | ||||||||||
1988 | 0.68 | 0.38 | 0.01 | a | 1.08 | 0.03 | 0.13 | 0.01 | 0.07 | 0.46 | a | 0.11 | 0.16 | a | 0.51 | 3.63 | ||||||||||
1989 | 0.54 | a | 0.44 | a | 0.10 | a | 0.01 | 0.22 | a | 0.18 | 0.13 | 1.63 | 0.00 | 0.24 | a | 0.00 | h | 0.00 | 3.49 | a | ||||||
1990 | 0.61 | a | 0.21 | 0.29 | c | 0.34 | a | 0.15 | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | 0.54 | 0.07 | 2.21 | d | |||||
1991 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1992 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1993 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1994 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1995 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1996 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1997 | ----- | z | ----- | z | 0.26 | 0.67 | 0.11 | a | 0.00 | 1.40 | 1.04 | 2.07 | 1.04 | 0.31 | 0.13 | 7.03 | b | |||||||||
1998 | 0.24 | 0.34 | 0.51 | 0.28 | 0.15 | 0.12 | 0.41 | 0.00 | 1.58 | 2.21 | 0.96 | 0.67 | 7.47 | |||||||||||||
1999 | 0.09 | 0.24 | 0.00 | 0.69 | 0.08 | 0.30 | 1.00 | 1.06 | 0.91 | 0.00 | 0.04 | 0.07 | 4.48 | |||||||||||||
2000 | 0.35 | 0.13 | 0.79 | 0.03 | 0.06 | 0.00 | 0.06 | 0.07 | 0.05 | 1.84 | 0.12 | 0.03 | 3.53 | |||||||||||||
2001 | 1.05 | 0.60 | 1.03 | 0.25 | 0.11 | 0.23 | 0.24 | 1.14 | 0.07 | 0.00 | 0.14 | 0.44 | a | 5.30 | ||||||||||||
2002 | 0.00 | a | 0.00 | 0.05 | 0.10 | 0.06 | 0.00 | 0.03 | 0.14 | 3.51 | 0.38 | 0.05 | 1.19 | 5.51 | ||||||||||||
2003 | 0.18 | b | 1.12 | 0.43 | 0.10 | e | 0.09 | 0.00 | 0.47 | 0.61 | g | 0.64 | 0.24 | 1.02 | 0.07 | a | 4.36 | a | ||||||||
2004 | ----- | z | 1.06 | 0.03 | 0.79 | 0.00 | 0.11 | 0.44 | 0.00 | 1.23 | 0.71 | b | 1.44 | 0.47 | 6.28 | a | ||||||||||
2005 | 1.92 | 1.28 | 0.55 | 0.99 | 0.08 | 0.28 | 0.34 | 0.78 | f | 0.04 | c | 1.00 | 0.00 | 0.00 | m | 6.48 | b | |||||||||
2006 | 0.53 | 0.00 | 0.38 | a | 0.19 | 0.02 | 0.20 | 0.07 | 0.43 | 0.11 | 3.93 | 0.12 | 0.81 | 6.79 | ||||||||||||
2007 | 0.35 | 0.76 | 0.30 | a | 0.73 | 0.09 | 0.00 | 0.36 | 1.09 | 0.97 | 0.46 | a | 0.04 | 1.17 | 6.32 | |||||||||||
2008 | 0.57 | 0.37 | k | 0.21 | 0.31 | 0.55 | 0.45 | 0.06 | 0.63 | 0.05 | 0.27 | 0.42 | 1.32 | g | 3.52 | b | ||||||||||
2009 | 0.09 | 0.07 | m | 0.25 | o | 0.37 | 0.96 | 0.19 | 0.02 | 0.01 | 0.18 | a | 0.03 | 0.28 | 1.29 | b | 3.42 | b | ||||||||
2010 | 1.75 | 0.56 | 1.14 | 0.08 | a | 0.12 | 0.10 | 0.76 | 2.50 | a | 0.33 | 2.25 | f | 0.14 | 1.17 | 8.65 | a | |||||||||
2011 | 0.00 | f | 0.26 | u | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.92 | 0.20 | 0.50 | 0.33 | 1.95 | h | ||||
2012 | 0.14 | 0.03 | 0.12 | 0.00 | 0.00 | 0.00 | 0.55 | 0.35 | 0.59 | a | 0.38 | b | 0.02 | 0.64 | 2.82 | |||||||||||
2013 | 0.58 | 0.00 | 0.51 | a | 0.14 | c | 0.17 | 0.00 | 0.07 | 0.88 | 2.48 | 0.06 | 2.09 | 0.73 | 7.71 | |||||||||||
2014 | 0.25 | 0.43 | 0.22 | 0.02 | 0.64 | 0.00 | b | 0.13 | 1.50 | 1.06 | 0.02 | 0.14 | a | 0.23 | 4.64 | |||||||||||
2015 | 1.27 | 1.26 | 1.06 | a | 0.06 | 0.55 | 1.37 | 0.58 | 0.82 | 0.25 | 1.65 | 0.47 | 0.26 | 9.60 | ||||||||||||
2016 | 0.88 | 0.81 | a | 0.05 | 1.00 | 0.36 | 0.10 | 0.03 | 0.35 | 0.92 | 0.77 | 0.40 | 0.52 | 6.19 | ||||||||||||
2017 | 1.25 | 0.65 | 0.39 | 0.33 | 0.83 | 0.00 | 1.87 | 0.18 | 0.31 | 0.00 | 0.00 | 0.03 | 5.84 | |||||||||||||
2018 | 0.18 | 0.60 | 0.57 | 0.10 | 0.02 | 0.00 | 0.13 | 0.75 | 0.00 | 3.72 | 0.00 | 0.29 | 6.36 | |||||||||||||
2019 | 0.92 | 1.38 | 1.10 | 0.44 | 1.81 | 0.16 | 0.08 | 0.04 | 0.40 | 0.34 | 0.51 | 1.06 | 8.24 | |||||||||||||
2020 | 0.37 | 0.21 | 1.28 | 0.02 | 0.01 | 0.10 | 0.47 | 0.02 | 0.07 | 0.29 | 0.19 | 0.16 | 3.19 | |||||||||||||
2021 | 0.11 | 0.10 | 0.14 | 0.01 | 0.00 | 0.00 | 0.14 | 1.40 | 0.95 | 0.73 | c | 0.00 | 0.24 | 3.82 | ||||||||||||
2022 | 0.00 | a | 0.10 | 0.11 | a | 0.06 | b | 0.00 | 0.10 | 0.17 | 0.15 | 0.27 | 0.59 | 0.37 | 0.85 | 2.77 | ||||||||||
2023 | 1.11 | 0.83 | 1.06 | 0.12 | 0.04 | 0.11 | 0.09 | 1.07 | 0.18 | 0.29 | 0.15 | 0.20 | 5.25 | |||||||||||||
2024 | 0.32 | 0.96 | 1.45 | 0.00 | p | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 2.73 | i | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.57 | 0.47 | 0.58 | 0.30 | 0.34 | 0.16 | 0.40 | 0.57 | 0.65 | 0.88 | 0.50 | 0.50 | 5.93 | |||||||||||||
S.D. | 0.56 | 0.40 | 0.52 | 0.34 | 0.46 | 0.27 | 0.44 | 0.53 | 0.71 | 1.19 | 0.54 | 0.47 | 2.28 | |||||||||||||
SKEW | 1.14 | 0.69 | 1.06 | 1.50 | 1.89 | 2.97 | 1.70 | 1.31 | 1.84 | 2.78 | 1.31 | 1.58 | 0.49 | |||||||||||||
MAX | 1.98 | 1.38 | 2.35 | 1.47 | 1.89 | 1.37 | 1.87 | 2.50 | 3.51 | 6.53 | 2.09 | 2.37 | 11.46 | |||||||||||||
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 | 2.17 | |||||||||||||
YRS | 48 | 47 | 50 | 50 | 50 | 49 | 49 | 46 | 50 | 50 | 50 | 49 | 39 |