YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1955 | ----- | z | ----- | z | 0.51 | 1.32 | 0.64 | 0.00 | 0.00 | 0.00 | 0.02 | 0.08 | 0.92 | 7.14 | 10.63 | b | ||||||||||
1956 | 4.67 | 0.72 | 0.04 | 1.92 | 0.37 | 0.00 | 0.01 | 0.00 | 0.78 | 0.47 | 0.01 | 0.15 | 9.14 | |||||||||||||
1957 | 1.67 | 3.31 | 1.61 | 0.82 | 1.15 | 0.00 | 0.00 | 0.00 | 0.02 | 1.31 | 0.16 | 2.40 | 12.45 | |||||||||||||
1958 | 3.21 | 5.57 | 4.17 | 3.97 | 0.60 | 0.26 | 0.00 | 0.00 | 0.03 | 0.07 | 0.00 | 0.50 | 18.38 | |||||||||||||
1959 | 2.96 | 3.36 | 0.27 | 0.40 | 0.00 | 0.00 | 0.00 | 0.00 | 1.75 | 0.00 | 0.01 | 1.28 | 10.03 | |||||||||||||
1960 | 2.51 | 2.80 | 1.40 | 0.97 | 0.35 | 0.00 | 0.03 | 0.00 | 0.00 | 0.02 | 2.76 | 0.60 | 11.44 | |||||||||||||
1961 | 2.33 | 0.73 | 1.56 | 0.66 | 0.43 | 0.04 | 0.00 | 0.00 | 0.24 | 0.04 | 2.33 | 1.11 | 9.47 | |||||||||||||
1962 | 0.59 | 6.08 | 0.92 | 0.02 | 0.00 | 0.00 | 0.00 | 0.05 | 0.00 | 4.85 | 0.23 | 1.52 | 14.26 | |||||||||||||
1963 | 1.83 | 2.76 | 2.55 | 3.50 | 0.41 | 0.03 | 0.00 | 0.00 | 0.10 | 0.54 | 2.65 | 0.22 | 14.59 | |||||||||||||
1964 | 2.80 | 0.01 | 1.21 | 0.14 | 0.07 | 0.80 | 0.00 | 0.15 | 0.00 | 1.34 | 1.87 | 2.87 | 11.26 | |||||||||||||
1965 | 2.10 | 0.63 | 1.04 | 1.83 | 0.04 | 0.00 | 0.03 | 0.28 | 0.00 | 0.05 | 3.14 | 2.57 | 11.71 | |||||||||||||
1966 | 1.56 | 1.10 | 0.25 | 0.40 | 0.31 | 0.06 | 0.20 | 0.03 | 0.08 | 0.00 | 3.26 | 2.53 | 9.78 | |||||||||||||
1967 | 5.25 | 0.29 | 3.49 | 2.61 | 0.06 | 0.61 | 0.00 | 0.00 | 0.01 | 0.12 | 0.76 | 0.85 | 14.05 | |||||||||||||
1968 | 3.40 | 1.25 | 1.44 | 0.38 | 0.10 | 0.00 | 0.00 | 0.45 | 0.00 | 0.13 | 2.16 | 2.41 | 11.72 | |||||||||||||
1969 | 6.31 | 4.71 | 1.14 | 0.68 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 1.25 | 0.51 | 2.85 | 17.46 | |||||||||||||
1970 | 4.71 | 0.45 | 1.27 | 0.40 | 0.00 | 0.17 | 0.00 | 0.00 | 0.05 | 0.33 | 4.83 | 3.83 | 16.04 | |||||||||||||
1971 | 0.61 | 0.32 | 1.92 | 0.69 | 0.73 | 0.00 | 0.00 | 0.00 | 0.02 | 0.03 | 0.59 | 2.96 | 7.87 | |||||||||||||
1972 | 0.60 | 1.90 | 0.06 | 0.44 | 0.10 | 0.12 | 0.00 | 0.00 | 0.52 | 4.17 | 4.56 | 1.44 | 13.91 | |||||||||||||
1973 | ----- | z | 3.97 | 2.49 | 0.16 | 0.00 | 0.00 | 0.00 | 0.00 | 0.05 | 1.89 | 3.33 | 3.28 | 15.17 | a | |||||||||||
1974 | 1.14 | 0.45 | 2.11 | 1.61 | 0.00 | 0.07 | 0.09 | 0.00 | 0.00 | 0.68 | 0.25 | 1.92 | 8.32 | |||||||||||||
1975 | 0.80 | 2.84 | 4.29 | 0.85 | 0.00 | 0.03 | 0.17 | 0.06 | 0.00 | 1.40 | 0.07 | 0.18 | 10.69 | |||||||||||||
1976 | 0.26 | 0.93 | 0.80 | 0.29 | 0.00 | 0.07 | 0.00 | 0.74 | 0.90 | 0.48 | 0.44 | 0.96 | 5.87 | |||||||||||||
1977 | 0.71 | 0.79 | 1.21 | 0.23 | 2.03 | 0.00 | 0.00 | 0.00 | 0.28 | 0.03 | 0.91 | 2.55 | 8.74 | |||||||||||||
1978 | 6.07 | 3.19 | 3.43 | 1.52 | 0.00 | 0.00 | 0.00 | 0.00 | 0.05 | 0.01 | 1.89 | 0.18 | 16.34 | |||||||||||||
1979 | 4.63 | 2.68 | 1.90 | 0.98 | 0.00 | 0.00 | 0.11 | 0.00 | 0.00 | 0.00 | d | 1.09 | 3.84 | 15.23 | ||||||||||||
1980 | 3.26 | 5.03 | ----- | z | 0.70 | 0.00 | c | 0.00 | 0.46 | 0.00 | 0.00 | 0.00 | 0.14 | 1.09 | 10.68 | a | ||||||||||
1981 | 2.88 | 0.68 | 2.22 | 0.00 | b | 0.04 | 0.00 | 0.00 | 0.00 | 0.04 | 1.07 | 4.35 | 0.01 | 11.29 | ||||||||||||
1982 | 5.03 | 1.57 | 3.82 | 1.69 | 0.00 | 0.00 | 0.00 | 0.00 | 1.22 | 1.31 | 4.22 | 1.96 | 20.82 | |||||||||||||
1983 | 5.20 | 3.76 | 6.26 | 3.31 | 0.38 | 0.00 | 0.00 | 0.06 | 0.63 | 0.06 | 3.99 | 4.10 | 27.75 | |||||||||||||
1984 | 0.13 | 1.00 | 0.86 | 0.19 | 0.01 | 0.00 | 0.00 | 0.01 | 0.04 | 1.75 | 3.82 | 0.85 | 8.66 | |||||||||||||
1985 | 0.44 | 0.84 | 1.90 | 0.22 | 0.00 | a | 0.22 | b | 0.00 | a | 0.00 | 0.16 | 0.54 | 2.23 | 2.02 | 8.57 | ||||||||||
1986 | 1.85 | b | 7.30 | a | 3.71 | 0.69 | 0.18 | a | 0.00 | 0.02 | 0.00 | a | 0.71 | 0.05 | a | 0.00 | 0.52 | 15.03 | ||||||||
1987 | 1.74 | 3.04 | 1.89 | 0.16 | 0.06 | 0.00 | 0.00 | b | 0.00 | a | 0.00 | 0.42 | 1.31 | 3.55 | 12.17 | |||||||||||
1988 | 2.47 | 0.49 | 0.35 | 0.44 | 0.67 | 0.44 | 0.00 | 0.00 | 0.00 | 0.45 | g | 1.32 | 1.86 | 8.04 | a | |||||||||||
1989 | 0.86 | 1.00 | 2.40 | 0.24 | c | 0.14 | 0.20 | 0.00 | 0.04 | 1.84 | 1.33 | 1.02 | a | 0.00 | 9.07 | |||||||||||
1990 | 1.22 | 1.69 | 0.66 | 0.34 | 1.92 | 0.00 | 0.00 | 0.00 | 0.00 | 0.09 | 0.22 | 1.61 | 7.75 | |||||||||||||
1991 | 0.18 | 2.16 | 4.39 | 0.17 | 0.25 | ----- | z | 0.00 | 0.04 | 0.00 | 1.29 | 0.11 | 1.16 | 9.75 | a | |||||||||||
1992 | 0.93 | 3.95 | 1.86 | 0.47 | 0.00 | 0.22 | 0.00 | 0.00 | 0.00 | 0.46 | 0.12 | 3.76 | 11.77 | |||||||||||||
1993 | 6.97 | 3.76 | 1.98 | 0.19 | 0.50 | 0.10 | 0.00 | 0.00 | 0.00 | 0.23 | 1.86 | 1.30 | 16.89 | |||||||||||||
1994 | 0.92 | 2.65 | 0.13 | 0.54 | 1.06 | 0.00 | 0.00 | 0.00 | 0.01 | 0.42 | 3.50 | 1.24 | 10.47 | |||||||||||||
1995 | 6.70 | 0.06 | 5.74 | 0.27 | 1.21 | 0.64 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 5.05 | 19.67 | |||||||||||||
1996 | 2.77 | 3.32 | 1.94 | 1.16 | 1.23 | 0.00 | 0.00 | 0.00 | 0.00 | 0.89 | 2.65 | 3.47 | 17.43 | |||||||||||||
1997 | 6.01 | 0.12 | 0.16 | 0.00 | 0.32 | 0.31 | 0.00 | 0.01 | 0.00 | 0.44 | 3.35 | 1.47 | 12.19 | |||||||||||||
1998 | 4.92 | 9.03 | 1.63 | 1.31 | 2.09 | 0.07 | 0.00 | 0.00 | 0.48 | 0.58 | 1.57 | 0.61 | 22.29 | |||||||||||||
1999 | 1.76 | 2.41 | 1.72 | 0.84 | 0.00 | 0.00 | 0.00 | 0.00 | 0.16 | 0.10 | ----- | z | 0.55 | 7.54 | a | |||||||||||
2000 | 4.68 | 4.46 | ----- | z | 1.25 | 0.59 | 0.07 | ----- | z | 0.00 | 0.08 | 1.28 | 0.62 | ----- | z | 13.03 | c | |||||||||
2001 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | a | 0.00 | ----- | z | ----- | z | 0.00 | j | |
2002 | ----- | z | ----- | z | ----- | z | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 1.76 | 5.77 | 7.53 | c | |||||||||
2003 | ----- | z | 0.00 | 1.34 | 1.25 | ----- | z | ----- | z | 0.00 | 0.35 | 0.00 | 0.00 | 1.09 | 4.02 | 8.05 | c | |||||||||
2004 | 1.78 | 4.21 | a | ----- | z | ----- | z | ----- | z | 0.00 | 0.00 | 0.00 | 0.00 | 2.75 | 1.82 | 5.80 | 16.36 | c | ||||||||
2005 | 5.21 | 3.33 | 2.83 | 0.82 | 0.45 | 0.10 | 0.00 | 0.00 | 0.00 | 0.00 | b | 0.81 | 7.00 | 20.55 | ||||||||||||
2006 | 2.42 | 1.50 | 3.32 | m | 2.67 | 0.00 | b | 0.00 | 0.00 | 0.00 | 0.00 | 0.09 | 0.71 | 1.31 | 8.70 | a | ||||||||||
2007 | 0.16 | 2.34 | p | ----- | z | 1.05 | ----- | z | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 2.14 | 3.35 | c | |||||||||
2008 | 4.97 | 1.47 | a | ----- | z | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.08 | 0.62 | ----- | z | 7.14 | b | |||||||||
2009 | ----- | z | 4.51 | b | 3.94 | ----- | z | 0.02 | 0.00 | 0.00 | 0.00 | 0.00 | ----- | z | ----- | z | ----- | z | 8.47 | e | ||||||
2010 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | a | ----- | z | ----- | z | 0.00 | g | ||||
2011 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | 0.00 | 0.00 | ----- | z | ----- | z | ----- | z | 0.00 | i | |||
2012 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | ----- | z | 0.00 | ----- | z | 3.96 | a | 2.70 | 6.66 | h | |||
2013 | 0.98 | 0.30 | 0.15 | 0.46 | 0.00 | 0.07 | 0.00 | 0.00 | 0.50 | 0.00 | 1.28 | 0.26 | 4.00 | |||||||||||||
2014 | 0.24 | 3.33 | 1.26 | 1.48 | 0.00 | 0.00 | 0.00 | 0.01 | 0.25 | 0.27 | 1.15 | 8.32 | 16.31 | |||||||||||||
2015 | 0.04 | 1.85 | 0.40 | 0.62 | 0.01 | 0.50 | 0.00 | 0.00 | 0.01 | 0.00 | 1.51 | 1.60 | 6.54 | |||||||||||||
2016 | 5.62 | 0.50 | 3.37 | 1.52 | 0.20 | 0.00 | 0.00 | 0.00 | 0.00 | 1.03 | ----- | z | 1.30 | 13.54 | a | |||||||||||
2017 | 6.16 | 4.99 | 1.50 | 0.00 | 0.00 | o | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 12.65 | h | ||||
2018 | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | 0.00 | x | ----- | z | 0.00 | ----- | z | 0.00 | w | 0.55 | a | 1.67 | b | 2.22 | h | ||
2019 | 2.93 | 3.82 | 1.69 | 0.31 | b | 1.25 | 0.00 | d | 0.00 | c | 0.00 | 0.10 | 0.00 | 0.00 | 1.40 | 11.50 | ||||||||||
2020 | 0.73 | 0.00 | 0.98 | a | 1.10 | 0.17 | 0.00 | 0.00 | a | 0.04 | 0.00 | 0.00 | 0.03 | 0.88 | 3.93 | |||||||||||
2021 | 1.35 | 0.65 | 0.32 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | ----- | z | ----- | z | ----- | z | ----- | z | 2.32 | d | ||||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 2.71 | 2.37 | 1.86 | 0.87 | 0.34 | 0.09 | 0.02 | 0.04 | 0.17 | 0.60 | 1.53 | 2.21 | 12.74 | |||||||||||||
S.D. | 2.05 | 1.98 | 1.44 | 0.89 | 0.53 | 0.18 | 0.07 | 0.12 | 0.39 | 0.95 | 1.42 | 1.86 | 4.94 | |||||||||||||
SKEW | 0.50 | 0.98 | 1.05 | 1.66 | 1.93 | 2.51 | 5.11 | 4.31 | 2.91 | 2.65 | 0.75 | 1.34 | 0.68 | |||||||||||||
MAX | 6.97 | 9.03 | 6.26 | 3.97 | 2.09 | 0.80 | 0.46 | 0.74 | 1.84 | 4.85 | 4.83 | 8.32 | 27.75 | |||||||||||||
MIN | 0.04 | 0.00 | 0.04 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 3.93 | |||||||||||||
YRS | 57 | 59 | 55 | 60 | 59 | 60 | 63 | 64 | 64 | 60 | 59 | 59 | 45 |