| YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
| 1962 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | r | 1.11 | 0.66 | 1.77 | |||
| 1963 | 1.50 | 0.35 | 0.16 | 1.95 | 0.90 | 0.79 | 0.06 | 0.23 | 0.88 | 0.87 | 1.52 | 0.75 | 9.96 | |||||||||||||
| 1964 | 2.00 | 0.03 | 0.58 | 0.85 | 1.54 | 2.81 | 0.42 | 0.46 | 0.16 | 0.02 | 1.29 | 3.20 | 13.36 | |||||||||||||
| 1965 | 2.22 | 0.04 | 0.14 | 0.83 | 0.15 | 1.59 | 0.15 | 2.93 | 0.20 | 0.08 | 1.60 | 0.35 | 10.28 | |||||||||||||
| 1966 | 0.00 | z | 0.54 | 0.50 | 0.10 | 0.39 | 0.48 | 0.00 | 0.29 | 0.59 | 0.20 | 1.14 | 1.80 | 6.03 | ||||||||||||
| 1967 | 1.43 | 0.02 | 1.00 | 1.47 | 1.19 | 1.75 | 0.10 | 0.33 | 0.72 | 0.90 | 0.00 | z | 0.68 | 9.59 | ||||||||||||
| 1968 | 0.76 | 1.03 | 0.17 | 0.15 | 0.36 | 0.46 | 0.15 | 2.57 | 0.00 | z | 0.41 | 2.14 | 1.30 | 9.50 | ||||||||||||
| 1969 | 2.10 | 1.09 | 0.75 | 0.26 | 0.45 | 0.94 | 0.00 | 0.00 | 0.24 | 0.71 | 0.13 | 2.06 | 8.73 | |||||||||||||
| 1970 | 3.07 | 0.51 | 0.37 | 0.05 | 1.47 | 1.77 | 0.00 | 0.00 | 0.36 | 0.86 | 1.87 | 1.83 | 12.16 | |||||||||||||
| 1971 | 1.72 | 0.05 | 1.37 | 0.41 | 1.50 | 0.88 | 0.00 | 0.00 | 0.24 | 0.19 | 1.41 | 1.43 | 9.20 | |||||||||||||
| 1972 | 0.90 | 0.48 | 0.80 | 0.26 | 0.27 | 1.65 | 0.12 | 0.10 | 0.72 | 0.77 | 0.99 | 0.00 | z | 7.06 | ||||||||||||
| 1973 | 1.09 | q | 0.90 | 0.33 | 0.27 | 0.00 | z | 0.21 | 0.00 | z | 0.00 | z | 0.00 | z | 0.11 | v | 2.79 | 2.18 | 6.68 | |||||||
| 1974 | 1.51 | 0.41 | 1.52 | 0.00 | z | 0.20 | 0.08 | 0.98 | 0.10 | 0.00 | 0.38 | 0.10 | 1.28 | 6.56 | ||||||||||||
| 1975 | 0.85 | 1.28 | 1.69 | 1.64 | 0.14 | 1.91 | 1.02 | 0.65 | 0.00 | 1.09 | 0.66 | 0.91 | 11.84 | |||||||||||||
| 1976 | 0.20 | o | 0.87 | 0.56 | 0.33 | 0.03 | 0.20 | 0.98 | 1.68 | 0.64 | 0.08 | 0.25 | 0.00 | 5.62 | ||||||||||||
| 1977 | 0.42 | 0.40 | 0.08 | 0.00 | 1.82 | 0.55 | 0.12 | 0.39 | 1.06 | 0.00 | 1.60 | 1.77 | 8.21 | |||||||||||||
| 1978 | 1.97 | 1.46 | 0.70 | 3.68 | 0.33 | 0.37 | 0.34 | 0.56 | 1.09 | 0.00 | 0.89 | 0.46 | 11.85 | |||||||||||||
| 1979 | 2.01 | 1.02 | 0.55 | 0.88 | 0.82 | 0.00 | z | 0.00 | 2.18 | 0.43 | 1.04 | 1.22 | 1.35 | 11.50 | ||||||||||||
| 1980 | 0.78 | 1.75 | 0.61 | 0.16 | 2.00 | 2.12 | 0.09 | 0.00 | 1.35 | 0.48 | 0.57 | 1.58 | 11.49 | |||||||||||||
| 1981 | 1.14 | 0.90 | 1.40 | 0.23 | 3.44 | 0.98 | 0.10 | 0.08 | 0.10 | 1.32 | 3.17 | 3.20 | 16.06 | |||||||||||||
| 1982 | 1.24 | 1.30 | 0.83 | 0.73 | 1.09 | 1.39 | 2.01 | 0.22 | 0.77 | 1.67 | 0.70 | 2.75 | 14.70 | |||||||||||||
| 1983 | 1.31 | 1.66 | 2.09 | 1.86 | 1.24 | 1.12 | 0.81 | 1.42 | 0.20 | 0.67 | 2.74 | 3.04 | 18.16 | |||||||||||||
| 1984 | 0.60 | 1.08 | 1.82 | 1.06 | 0.79 | 1.35 | 0.12 | 0.96 | 0.03 | 0.45 | 2.76 | 0.73 | 11.75 | |||||||||||||
| 1985 | 0.13 | 0.36 | a | 0.79 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.35 | 1.63 | ||||
| 1986 | 1.19 | 2.58 | 0.87 | 0.40 | 1.46 | 0.51 | 0.24 | 0.38 | 1.45 | 0.48 | 0.00 | 0.10 | b | 9.66 | ||||||||||||
| 1987 | 1.09 | 0.71 | 0.80 | 0.35 | 0.66 | 0.90 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | 1.18 | 1.31 | a | 7.00 | |||||||||
| 1988 | 1.08 | 0.00 | z | 0.48 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.11 | 0.00 | 2.40 | 1.21 | 5.28 | |||||||
| 1989 | 0.37 | 0.75 | 0.98 | o | 0.57 | o | 0.00 | z | 0.00 | z | 0.30 | 0.83 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 2.25 | |||||
| 1990 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.46 | 0.23 | 0.69 | |||
| 1991 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | |
| 1992 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.40 | a | 1.38 | 0.96 | 0.41 | 0.11 | 0.60 | 1.12 | 2.05 | 7.03 | ||||||||
| 1993 | 2.47 | 1.04 | 1.35 | 1.80 | 0.63 | 1.86 | 0.33 | 0.54 | 0.00 | 0.65 | e | 0.24 | 0.87 | a | 11.78 | |||||||||||
| 1994 | 0.41 | 0.73 | 0.04 | 0.73 | 0.99 | 0.06 | 1.20 | 0.00 | 0.13 | 0.32 | 1.69 | 0.87 | a | 7.17 | ||||||||||||
| 1995 | 2.71 | 0.39 | 1.27 | 1.56 | 1.94 | 0.00 | z | 1.99 | 0.64 | 0.46 | 0.26 | 0.79 | 2.03 | 14.04 | ||||||||||||
| 1996 | 1.37 | 1.01 | 1.18 | 0.98 | 1.44 | 0.45 | 0.06 | 0.21 | 0.26 | 0.56 | 1.29 | 3.36 | 12.17 | |||||||||||||
| 1997 | 1.96 | 0.03 | 0.23 | 0.62 | 1.45 | 0.00 | z | 0.85 | 0.13 | 0.21 | 0.26 | 1.39 | 0.87 | 8.00 | ||||||||||||
| 1998 | 1.84 | 2.09 | 1.27 | 1.03 | 3.81 | 1.18 | 0.00 | z | 0.67 | 1.06 | 0.00 | 1.21 | 0.37 | 14.53 | ||||||||||||
| 1999 | 1.70 | 2.05 | 0.19 | b | 0.18 | 0.08 | 1.17 | 0.00 | 0.66 | 0.00 | 0.43 | 0.07 | 0.74 | 7.27 | ||||||||||||
| 2000 | 1.45 | 1.82 | 1.36 | 1.35 | 0.23 | 0.24 | 0.05 | 0.00 | 0.28 | 1.71 | 0.33 | 0.80 | 9.62 | |||||||||||||
| 2001 | 0.36 | b | 0.82 | 0.37 | 0.36 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.40 | c | 0.04 | c | 0.58 | l | 2.35 | ||||
| 2002 | 0.20 | e | 0.03 | a | 0.35 | 0.69 | b | 0.20 | b | 0.30 | 0.00 | 1.10 | c | 0.05 | f | 0.00 | s | 0.00 | z | 0.00 | z | 2.87 | ||||
| 2003 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | |
| 2004 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | |
| 2005 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 1.01 | n | 0.61 | 0.54 | 0.00 | h | 0.08 | 1.36 | 1.34 | 3.16 | a | 7.09 | ||||||
| 2006 | 1.22 | 0.43 | 2.13 | 1.53 | 1.18 | a | 0.39 | 0.38 | 0.35 | 0.64 | 0.36 | 1.05 | 0.89 | b | 10.55 | |||||||||||
| 2007 | 0.07 | 0.75 | 0.01 | 0.52 | 0.17 | b | 0.34 | 0.18 | 0.14 | a | 1.29 | 0.39 | 0.81 | 0.84 | 5.51 | |||||||||||
| 2008 | 0.60 | 0.60 | 0.30 | 0.24 | 0.78 | 0.39 | 0.05 | 0.65 | 0.81 | 0.58 | 0.78 | 1.57 | 7.35 | |||||||||||||
| 2009 | 0.53 | 0.38 | 0.33 | 0.32 | 1.09 | 1.90 | a | 0.10 | 0.86 | 0.00 | 1.60 | 0.36 | 1.05 | 8.52 | ||||||||||||
| 2010 | 2.31 | 0.66 | 0.29 | 0.76 | 0.98 | 1.47 | c | 0.44 | 0.00 | 0.11 | 0.00 | 0.00 | z | 0.00 | z | 7.02 | ||||||||||
| Period of Record Statistics | ||||||||||||||||||||||||||
| MEAN | 1.30 | 0.84 | 0.77 | 0.81 | 0.99 | 0.99 | 0.40 | 0.60 | 0.45 | 0.55 | 1.15 | 1.37 | 10.72 | |||||||||||||
| S.D. | 0.76 | 0.62 | 0.58 | 0.74 | 0.85 | 0.68 | 0.52 | 0.71 | 0.43 | 0.48 | 0.81 | 0.92 | 2.95 | |||||||||||||
| SKEW | 0.29 | 0.83 | 0.72 | 1.76 | 1.53 | 0.58 | 1.73 | 1.83 | 0.82 | 0.90 | 0.69 | 0.74 | 0.61 | |||||||||||||
| MAX | 3.07 | 2.58 | 2.13 | 3.68 | 3.81 | 2.81 | 2.01 | 2.93 | 1.45 | 1.71 | 3.17 | 3.36 | 18.16 | |||||||||||||
| MIN | 0.07 | 0.02 | 0.01 | 0.00 | 0.03 | 0.06 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 5.51 | |||||||||||||
| NO YRS | 39 | 41 | 41 | 38 | 38 | 37 | 38 | 38 | 37 | 40 | 41 | 41 | 24 | |||||||||||||