YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1948 | 0.08 | 0.62 | 0.07 | d | 0.03 | 2.60 | 1.17 | 6.06 | 1.27 | 0.07 | 1.83 | 0.00 | 0.33 | 14.13 | ||||||||||||
1949 | 1.72 | 0.79 | 0.28 | 2.30 | 3.54 | 2.78 | 0.46 | 1.36 | 2.54 | 1.81 | 0.00 | 0.51 | 18.09 | |||||||||||||
1950 | 0.78 | 0.20 | 0.02 | 1.70 | 7.49 | 1.56 | 2.53 | 0.34 | 2.50 | 1.20 | 0.00 | 0.00 | 18.32 | |||||||||||||
1951 | 0.06 | 0.14 | 0.42 | 0.39 | 1.61 | 1.83 | 1.85 | 1.90 | 0.79 | 0.77 | 0.15 | 0.20 | 10.11 | |||||||||||||
1952 | 0.09 | 0.14 | 0.33 | 0.43 | 1.12 | 0.04 | 0.80 | 0.53 | 2.52 | 0.00 | 1.53 | 0.92 | 8.45 | |||||||||||||
1953 | 0.03 | 0.36 | 1.77 | 1.80 | 0.49 | 0.21 | 0.50 | 0.62 | 0.23 | 7.04 | 0.23 | 0.14 | 13.42 | |||||||||||||
1954 | 0.41 | 0.06 | 0.05 | 2.17 | 5.35 | 3.37 | 0.00 | 1.81 | 0.08 | 0.89 | 0.38 | 0.16 | 14.73 | |||||||||||||
1955 | 1.28 | 0.40 | 0.27 | 0.22 | 3.65 | 0.76 | 3.88 | 2.64 | 0.75 | 0.64 | 0.08 | 0.05 | 14.62 | |||||||||||||
1956 | 0.15 | 0.21 | 0.00 | 1.40 | 1.41 | 0.34 | 0.79 | 0.34 | 0.08 | 1.62 | 0.10 | 1.18 | 7.62 | |||||||||||||
1957 | 0.50 | 0.78 | 0.59 | 2.55 | 5.65 | 2.10 | 0.38 | 2.24 | 0.91 | 4.02 | 1.28 | 0.36 | 21.36 | |||||||||||||
1958 | 1.38 | 1.18 | 1.06 | 1.94 | 1.63 | ----- | z | 0.57 | 2.13 | 1.19 | 3.28 | 0.89 | 0.02 | 15.27 | a | |||||||||||
1959 | 0.00 | 0.59 | 0.73 | 0.57 | 3.16 | 4.93 | 4.10 | 0.86 | 0.43 | 4.14 | 0.14 | 1.32 | 20.97 | |||||||||||||
1960 | 1.45 | 0.40 | a | 0.16 | 2.55 | 0.76 | 0.08 | 3.75 | 0.75 | 0.24 | 2.27 | 0.05 | 1.60 | 14.06 | ||||||||||||
1961 | 2.13 | 0.55 | 0.59 | 0.02 | 1.27 | 4.38 | 5.80 | 0.04 | 3.33 | 0.46 | 2.80 | 0.34 | 21.71 | |||||||||||||
1962 | 0.06 | 0.01 | 0.52 | 0.89 | 0.29 | 1.15 | 3.43 | 0.74 | 8.99 | 0.74 | 0.10 | 1.24 | 18.16 | |||||||||||||
1963 | 0.04 | 0.99 | 0.02 | 2.12 | 5.05 | 2.59 | 0.03 | 0.38 | 0.62 | y | ----- | z | ----- | z | ----- | z | 11.22 | d | ||||||||
1964 | ----- | z | ----- | z | ----- | z | ----- | z | 2.81 | 1.47 | 0.38 | 1.76 | 1.61 | 0.12 | 0.54 | 0.60 | 9.29 | d | ||||||||
1965 | 0.24 | 1.55 | 0.02 | 0.46 | 6.46 | 1.93 | 0.30 | 1.60 | 1.70 | 0.40 | 0.23 | 0.50 | 15.39 | |||||||||||||
1966 | 1.02 | 0.48 | 1.50 | 4.35 | 1.37 | 1.79 | 0.87 | 4.63 | 3.53 | 1.23 | 0.06 | 0.00 | 20.83 | |||||||||||||
1967 | 0.00 | 1.02 | 1.20 | 0.17 | 0.34 | 3.01 | 3.51 | 0.53 | 4.28 | 0.52 | 1.15 | 0.65 | 16.38 | |||||||||||||
1968 | 1.80 | 1.30 | 2.06 | 1.56 | 6.19 | 2.10 | 0.99 | 0.93 | 1.26 | 0.02 | 3.89 | 0.14 | 22.24 | |||||||||||||
1969 | 0.00 | 0.65 | 0.84 | 2.63 | 4.46 | 1.09 | 0.27 | 3.28 | 2.37 | 3.39 | 1.64 | 1.39 | 22.01 | |||||||||||||
1970 | 0.00 | 1.14 | 2.56 | 0.85 | 1.49 | 1.25 | 0.00 | 1.53 | 4.53 | 1.23 | 0.00 | 0.27 | 14.85 | |||||||||||||
1971 | 0.00 | 0.04 | 0.00 | 1.92 | 2.56 | 2.59 | 2.08 | 4.90 | 3.14 | 1.66 | 0.11 | 0.65 | 19.65 | |||||||||||||
1972 | 0.00 | c | 0.12 | 0.00 | 0.83 | 1.52 | 4.33 | 1.72 | 3.68 | 4.49 | 3.78 | 0.50 | 0.10 | 21.07 | ||||||||||||
1973 | 2.20 | 2.14 | 2.19 | 2.11 | 1.63 | 2.68 | 2.13 | 1.71 | 4.20 | 0.65 | 0.02 | 0.00 | 21.66 | |||||||||||||
1974 | 1.30 | 0.00 | 1.00 | 1.83 | 1.96 | 0.10 | 0.11 | 2.53 | 6.78 | ----- | z | 0.10 | 0.78 | 16.49 | a | |||||||||||
1975 | 0.41 | 1.79 | 0.04 | 0.73 | 9.11 | 0.49 | 4.30 | 3.66 | 3.95 | 0.00 | 2.60 | 0.15 | 27.23 | |||||||||||||
1976 | 0.00 | 0.00 | 0.28 | 3.86 | 2.05 | 0.70 | 5.48 | 0.82 | 4.97 | 3.10 | 0.26 | 0.00 | 21.52 | |||||||||||||
1977 | 0.45 | 0.31 | 1.23 | 2.98 | 1.12 | 3.04 | 2.50 | 2.34 | 0.00 | 1.72 | 0.16 | 0.20 | 16.05 | |||||||||||||
1978 | 0.12 | 1.64 | 0.10 | 0.26 | 2.35 | 1.77 | 1.37 | 2.65 | 4.45 | 1.88 | 0.81 | 0.52 | 17.92 | |||||||||||||
1979 | 0.31 | 0.30 | 2.19 | 0.11 | 2.28 | 1.58 | 3.48 | 1.69 | 0.04 | 0.65 | 0.16 | 2.46 | 15.25 | |||||||||||||
1980 | 0.98 | 0.30 | 0.00 | 0.57 | 3.96 | 3.61 | 0.10 | 3.17 | 14.22 | 0.00 | 0.83 | 1.60 | 29.34 | |||||||||||||
1981 | 1.08 | 0.08 | 0.69 | 3.55 | 1.95 | 1.96 | 0.31 | 3.13 | 3.15 | 3.65 | 0.00 | 0.00 | 19.55 | |||||||||||||
1982 | 0.08 | 0.04 | 0.15 | ----- | z | 5.68 | 5.74 | ----- | z | 2.26 | 0.55 | 0.00 | 0.83 | 1.01 | c | 16.34 | b | |||||||||
1983 | 3.44 | 1.44 | 0.46 | 0.10 | 1.47 | 0.38 | 0.56 | ----- | z | 1.04 | 3.48 | 0.75 | a | 0.12 | 13.24 | a | ||||||||||
1984 | ----- | z | ----- | z | 0.00 | 0.00 | 0.69 | 0.89 | 0.80 | 0.55 | 3.08 | 2.81 | 2.78 | 1.89 | 13.49 | b | ||||||||||
1985 | 0.56 | 0.91 | a | 1.66 | b | 2.72 | 2.39 | 4.48 | 0.89 | 0.50 | 5.49 | 1.86 | 0.16 | 0.00 | 21.62 | |||||||||||
1986 | ----- | z | 0.58 | 0.26 | 0.00 | 0.12 | d | 5.79 | 0.16 | 6.37 | 5.89 | 6.16 | 0.46 | 1.05 | 26.84 | a | ||||||||||
1987 | 0.00 | 1.63 | 0.50 | 0.47 | 8.61 | 3.72 | 1.26 | 1.15 | 1.43 | 0.02 | 0.06 | 0.81 | 19.66 | |||||||||||||
1988 | 0.03 | 0.59 | 0.22 | 1.42 | 3.20 | 0.52 | 2.30 | 0.94 | 7.99 | 0.00 | 0.00 | ----- | z | 17.21 | a | |||||||||||
1989 | 0.52 | 1.53 | 0.68 | 0.02 | 1.15 | 4.01 | 1.56 | 1.49 | f | 3.22 | 0.05 | 0.03 | 0.21 | 12.98 | a | |||||||||||
1990 | 0.73 | 1.35 | 0.77 | 2.81 | 0.09 | 0.02 | 2.72 | 2.09 | 6.57 | 1.61 | 2.11 | 0.61 | 21.48 | |||||||||||||
1991 | 1.72 | 0.01 | 0.43 | 0.00 | 0.96 | 5.77 | 5.92 | 3.80 | 4.51 | 3.37 | 0.64 | 3.55 | 30.68 | |||||||||||||
1992 | 1.78 | 4.56 | 0.35 | 2.15 | 5.78 | 5.15 | 2.20 | 2.68 | 2.88 | 0.00 | ----- | z | 0.50 | 28.03 | a | |||||||||||
1993 | 1.02 | 0.59 | 0.55 | 3.00 | 3.52 | e | 1.73 | 2.78 | 2.77 | 1.34 | 2.54 | 0.00 | 0.46 | 20.30 | ||||||||||||
1994 | 1.78 | 0.51 | 0.29 | 0.36 | 7.29 | 0.99 | 3.44 | 0.00 | 1.49 | 1.20 | a | 0.37 | 0.54 | 18.26 | ||||||||||||
1995 | ----- | z | 1.16 | 0.45 | 1.91 | 8.93 | s | 2.88 | 0.52 | 0.61 | 3.04 | 0.64 | 0.00 | 0.00 | 11.21 | b | ||||||||||
1996 | 0.10 | 0.00 | b | 0.20 | ----- | z | 1.42 | 1.66 | 1.31 | 7.16 | ----- | z | 0.63 | b | ----- | z | 0.00 | 12.48 | c | |||||||
1997 | 0.23 | 1.37 | 0.36 | 3.41 | 1.55 | 5.96 | 0.20 | 2.12 | 0.64 | a | 0.96 | 0.54 | 1.16 | 18.50 | ||||||||||||
1998 | 0.95 | 0.39 | 0.87 | 0.03 | 1.82 | 0.32 | 1.15 | 3.58 | 0.00 | 1.32 | 2.44 | 0.80 | 13.67 | |||||||||||||
1999 | 0.09 | 0.00 | 1.57 | 0.53 | 1.70 | 2.52 | 0.24 | 1.75 | a | 2.98 | 0.42 | 0.00 | 0.00 | 11.80 | ||||||||||||
2000 | 0.06 | 0.65 | 4.36 | 0.42 | 1.89 | 2.90 | 0.03 | a | 0.75 | 0.00 | 3.91 | 1.87 | 0.19 | 17.03 | ||||||||||||
2001 | 0.68 | 1.37 | 0.73 | 0.98 | 1.15 | 0.46 | 0.38 | 2.05 | 1.00 | 0.20 | 6.01 | 0.12 | 15.13 | |||||||||||||
2002 | 0.56 | 1.25 | 1.76 | 0.26 | 0.30 | 0.84 | 1.99 | 2.23 | a | 0.99 | 4.13 | 0.27 | 1.84 | 16.42 | ||||||||||||
2003 | 0.04 | 0.59 | 1.19 | 0.40 | 1.37 | 4.89 | 0.38 | 2.50 | 2.07 | 0.57 | 0.45 | 0.00 | 14.45 | |||||||||||||
2004 | 0.61 | 1.56 | 2.58 | 2.73 | 0.08 | 2.97 | 2.87 | 4.73 | 4.97 | 3.85 | 6.68 | 0.25 | 33.88 | |||||||||||||
2005 | 0.41 | 1.00 | 0.75 | 0.00 | 2.39 | 0.32 | 1.93 | 5.59 | 0.00 | 4.43 | 0.00 | 0.05 | 16.87 | |||||||||||||
2006 | 0.02 | 0.46 | 1.91 | 0.68 | 0.86 | 3.00 | 0.09 | 3.03 | 4.92 | 2.28 | a | 0.08 | 1.26 | 18.59 | ||||||||||||
2007 | 1.08 | 0.05 | 4.91 | 3.48 | 2.99 | d | 3.17 | b | 0.13 | 7.63 | 0.97 | 0.20 | 1.40 | 0.41 | 26.42 | |||||||||||
2008 | 0.00 | 0.01 | 0.41 | 1.18 | 0.20 | 1.45 | 0.26 | a | 3.51 | 2.69 | 2.71 | 0.03 | 0.00 | 12.45 | ||||||||||||
2009 | 0.00 | 0.42 | b | 0.47 | 0.77 | 1.67 | 2.35 | 3.32 | 1.11 | 0.24 | 1.36 | 0.00 | 0.75 | 12.46 | ||||||||||||
2010 | 1.53 | 2.84 | 1.80 | 5.61 | 1.99 | 4.45 | 6.32 | 0.39 | 5.94 | 0.21 | 0.00 | 0.00 | 31.08 | |||||||||||||
2011 | 0.00 | 0.00 | 1.33 | 0.00 | 0.13 | 0.00 | 0.00 | 0.50 | 0.79 | 0.48 | 0.29 | 1.68 | 5.20 | |||||||||||||
2012 | 2.21 | 0.37 | 0.06 | 0.20 | 3.20 | 0.99 | 1.23 | 2.43 | 6.93 | 0.40 | 0.02 | 0.00 | a | 18.04 | ||||||||||||
2013 | 1.35 | c | 0.00 | 0.00 | c | 0.00 | e | 1.97 | m | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 1.35 | h | |
2014 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
2015 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | t | 1.90 | b | 6.09 | 1.37 | 0.00 | b | 9.36 | h | ||
2016 | 0.00 | 0.00 | 0.70 | 3.19 | 5.75 | 2.97 | 0.95 | 4.52 | e | 5.20 | 2.12 | 9.10 | 2.30 | 36.80 | ||||||||||||
2017 | 3.18 | 1.46 | 2.20 | a | 2.84 | 0.95 | 4.58 | 0.90 | a | 4.20 | 2.94 | 0.39 | e | 0.17 | b | 0.91 | 24.72 | |||||||||
2018 | 0.10 | a | 0.22 | 0.41 | 0.00 | 2.03 | 2.41 | 0.52 | 3.13 | 4.51 | 7.49 | 0.03 | b | 1.12 | a | 21.97 | ||||||||||
2019 | 0.01 | 0.09 | 1.96 | a | 4.32 | 3.99 | 2.58 | 0.77 | 0.75 | 1.00 | a | 0.08 | 5.10 | 0.55 | 21.20 | |||||||||||
2020 | 0.00 | 2.25 | 2.89 | ----- | z | ----- | z | ----- | z | 3.13 | 0.00 | 2.00 | 0.24 | 0.00 | 0.10 | a | 10.61 | c | ||||||||
2021 | 0.70 | 0.00 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | 0.16 | ----- | z | 0.86 | h | ||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.67 | 0.74 | 0.90 | 1.43 | 2.60 | 2.29 | 1.71 | 2.20 | 2.82 | 1.76 | 0.94 | 0.62 | 18.85 | |||||||||||||
S.D. | 0.81 | 0.80 | 0.99 | 1.35 | 2.15 | 1.65 | 1.70 | 1.71 | 2.59 | 1.81 | 1.70 | 0.71 | 6.15 | |||||||||||||
SKEW | 1.39 | 2.02 | 1.83 | 0.84 | 1.21 | 0.54 | 1.13 | 1.10 | 1.58 | 1.27 | 2.87 | 1.68 | 0.61 | |||||||||||||
MAX | 3.44 | 4.56 | 4.91 | 5.61 | 9.11 | 5.96 | 6.32 | 7.63 | 14.22 | 7.49 | 9.10 | 3.55 | 36.80 | |||||||||||||
MIN | 0.00 | 0.00 | 0.00 | 0.00 | 0.08 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 5.20 | |||||||||||||
YRS | 68 | 70 | 70 | 67 | 68 | 68 | 69 | 68 | 69 | 70 | 69 | 69 | 56 |