| YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
| 1965 | 9999.00 | z | 9999.00 | z | 9999.00 | z | 0.17 | 1.00 | 0.24 | 0.00 | 9999.00 | z | 9999.00 | z | 9999.00 | z | 0.18 | 0.20 | 1.00 | |||||||
| 1966 | 0.47 | b | 0.10 | 0.09 | 0.16 | 9999.00 | z | 0.20 | 0.07 | 0.04 | 0.11 | 0.04 | 0.36 | 0.39 | 0.47 | |||||||||||
| 1967 | 0.32 | 0.10 | 0.19 | 9999.00 | z | 9999.00 | z | 9999.00 | z | 9999.00 | z | 9999.00 | z | 9999.00 | z | 0.05 | c | 0.83 | 0.15 | 0.83 | ||||||
| 1968 | 0.19 | 0.25 | 0.16 | 0.03 | 0.21 | 0.25 | 0.00 | 0.53 | 0.00 | 9999.00 | z | 9999.00 | z | 0.24 | 0.53 | |||||||||||
| 1969 | 0.23 | d | 9999.00 | z | 9999.00 | z | 0.62 | 0.12 | 0.45 | 0.19 | 0.00 | 0.00 | 0.33 | 9999.00 | z | 9999.00 | z | 0.62 | ||||||||
| 1970 | 0.38 | 0.10 | a | 0.32 | 0.47 | 0.31 | 0.68 | 0.14 | 0.00 | 0.58 | 0.17 | 0.32 | 0.25 | 0.68 | ||||||||||||
| 1971 | 0.21 | 0.14 | 0.28 | 0.22 | 0.43 | 0.56 | 0.15 | 0.03 | 1.31 | 0.36 | 0.30 | 0.24 | 1.31 | |||||||||||||
| 1972 | 0.56 | 0.35 | 0.10 | 0.26 | 0.26 | 0.43 | 0.00 | 0.04 | 0.36 | 0.29 | 0.11 | 0.30 | 0.56 | |||||||||||||
| 1973 | 0.33 | 0.07 | 0.58 | 0.73 | 0.33 | 0.18 | 0.07 | 0.45 | 0.17 | 0.49 | 0.53 | 0.35 | 0.73 | |||||||||||||
| 1974 | 0.20 | 0.08 | 0.47 | 0.32 | 0.10 | 0.00 | 0.24 | 0.14 | 0.00 | 0.58 | 0.16 | 0.12 | 0.58 | |||||||||||||
| 1975 | 0.17 | 0.21 | 0.40 | 0.21 | 0.15 | 0.54 | 0.30 | 0.79 | 0.02 | 0.25 | 0.17 | 0.32 | 0.79 | |||||||||||||
| 1976 | 0.11 | 0.68 | 0.17 | 0.32 | 0.06 | 0.35 | 0.19 | 0.57 | 0.34 | 0.00 | 0.02 | 0.00 | 0.68 | |||||||||||||
| 1977 | 0.30 | 0.09 | 0.35 | 0.07 | 0.25 | 0.20 | 0.11 | 0.22 | 0.25 | 0.06 | 0.60 | 0.40 | 0.60 | |||||||||||||
| 1978 | 0.47 | 0.32 | 0.23 | 0.33 | 0.13 | 0.20 | 0.02 | 0.25 | 0.79 | 0.00 | 0.43 | 0.15 | 0.79 | |||||||||||||
| 1979 | 0.34 | 0.35 | 0.33 | 0.22 | 0.42 | 0.75 | 0.10 | 1.12 | 0.22 | 0.35 | 0.21 | 0.14 | 1.12 | |||||||||||||
| 1980 | 0.38 | 0.20 | 0.37 | 0.21 | 0.26 | 0.07 | 0.08 | 0.00 | 0.48 | 0.19 | 0.15 | 0.19 | 0.48 | |||||||||||||
| 1981 | 0.22 | 0.20 | 0.34 | 0.20 | 0.40 | 0.15 | 0.30 | 0.19 | 0.15 | 0.50 | 1.00 | 0.40 | 1.00 | |||||||||||||
| 1982 | 9999.00 | z | 0.15 | 0.00 | b | 0.33 | b | 0.18 | 0.28 | 1.13 | 0.00 | 0.36 | 0.20 | 0.25 | 0.50 | 1.13 | ||||||||||
| 1983 | 0.00 | 0.50 | 0.53 | 0.65 | a | 0.52 | 0.32 | a | 0.42 | 1.32 | 0.35 | 0.24 | 0.20 | a | 1.44 | A | 1.32 | |||||||||
| 1984 | 0.00 | c | 0.21 | c | 0.92 | A | 0.30 | 0.75 | 0.50 | 0.11 | 2.05 | 0.33 | 9999.00 | z | 9999.00 | z | 2.03 | A | 2.05 | |||||||
| 1985 | 0.02 | a | 0.22 | 1.00 | 0.14 | 0.25 | 0.00 | 0.52 | 0.00 | 0.18 | x | 0.22 | 0.35 | c | 9999.00 | z | 1.00 | |||||||||
| 1986 | 9999.00 | z | 9999.00 | z | 1.66 | 1.70 | A | 0.00 | 0.02 | 0.00 | 9999.00 | z | 0.20 | 0.13 | 0.04 | 0.25 | 1.66 | |||||||||
| 1987 | 0.26 | b | 2.14 | 0.32 | A | 2.00 | a | 1.66 | A | 0.42 | 0.15 | 9999.00 | z | 9999.00 | z | 9999.00 | z | 0.04 | c | 0.24 | 2.14 | |||||
| 1988 | 9999.00 | z | 0.05 | 0.09 | A | 0.32 | 0.41 | 0.40 | 0.20 | 0.12 | 0.26 | 0.00 | 0.55 | A | 0.24 | 0.41 | ||||||||||
| 1989 | 0.05 | 0.20 | 1.25 | b | 0.30 | a | 0.92 | 0.03 | 0.00 | g | 0.37 | 0.55 | 0.11 | 0.30 | 0.31 | 1.25 | ||||||||||
| 1990 | 0.10 | a | 0.25 | c | 0.15 | 0.52 | 0.36 | b | 0.20 | 0.06 | 0.73 | 0.00 | 0.26 | A | 0.10 | 0.09 | 0.73 | |||||||||
| 1991 | 9999.00 | z | 0.05 | 0.52 | c | 1.14 | d | 1.29 | n | 0.34 | 0.00 | 0.02 | 0.62 | A | 9999.00 | z | 0.35 | a | 0.04 | a | 1.29 | |||||
| 1992 | 0.00 | 0.40 | 0.56 | 9999.00 | z | 0.00 | 9999.00 | z | 0.05 | c | 0.52 | 0.00 | 1.92 | A | 0.53 | h | 0.16 | c | 0.56 | |||||||
| 1993 | 0.66 | d | 0.26 | e | 0.32 | A | 0.25 | a | 0.37 | b | 0.02 | f | 0.50 | 0.78 | 0.25 | 0.55 | 0.00 | o | 0.58 | 0.78 | ||||||
| 1994 | 0.01 | 0.34 | c | 0.42 | c | 0.40 | 0.40 | s | 0.00 | 0.01 | 0.00 | 0.00 | 0.02 | 0.39 | 0.76 | 0.76 | ||||||||||
| 1995 | 0.18 | h | 0.06 | c | 9999.00 | z | 0.72 | A | 1.72 | d | 9999.00 | z | 0.08 | b | 0.00 | 0.00 | 0.00 | 9999.00 | z | 0.51 | d | 1.72 | ||||
| 1996 | 0.75 | h | 0.63 | 0.80 | d | 9999.00 | z | 9999.00 | z | 9999.00 | z | 0.00 | g | 0.29 | 0.18 | A | 0.30 | A | 0.36 | A | 0.45 | a | 0.80 | |||
| 1997 | 0.85 | f | 9999.00 | z | 9999.00 | z | 9999.00 | z | 0.05 | a | 0.59 | 9999.00 | z | 0.00 | 0.08 | c | 0.13 | 0.07 | b | 9999.00 | z | 0.85 | ||||
| 1998 | 9999.00 | z | 0.47 | g | 9999.00 | z | 0.72 | h | 1.50 | 9999.00 | z | 9999.00 | z | 9999.00 | z | 0.80 | 0.45 | 0.26 | A | 0.48 | a | 1.50 | ||||
| 1999 | 9999.00 | z | 9999.00 | z | 9999.00 | z | 9999.00 | z | 9999.00 | z | 9999.00 | z | 9999.00 | z | 9999.00 | z | 9999.00 | z | 9999.00 | z | 9999.00 | z | 9999.00 | z | 9999.00 | |
| 2000 | 9999.00 | z | 9999.00 | z | 9999.00 | z | 9999.00 | z | 9999.00 | z | 9999.00 | z | 9999.00 | z | 9999.00 | z | 9999.00 | z | 9999.00 | z | 9999.00 | z | 9999.00 | z | 9999.00 | |
| 2001 | 9999.00 | z | 9999.00 | z | 9999.00 | z | 9999.00 | z | 9999.00 | z | 9999.00 | z | 9999.00 | z | 9999.00 | z | 9999.00 | z | 0.20 | 0.51 | a | 0.25 | e | 0.51 | ||
| 2002 | 0.35 | b | 0.12 | 0.16 | c | 0.24 | 0.22 | 0.22 | 0.08 | 0.00 | 0.11 | 0.10 | 0.15 | 0.25 | b | 0.35 | ||||||||||
| 2003 | 0.52 | 0.24 | b | 0.33 | a | 0.25 | 1.21 | a | 0.00 | 0.17 | A | 0.62 | b | 0.13 | 0.32 | 0.20 | 9999.00 | z | 1.21 | |||||||
| 2004 | 0.49 | c | 0.14 | d | 0.85 | 0.23 | 0.42 | 0.50 | 0.10 | 0.15 | a | 0.14 | 0.55 | 0.39 | a | 0.16 | 0.85 | |||||||||
| 2005 | 0.19 | c | 0.10 | 0.22 | 0.52 | 0.65 | 0.35 | 0.14 | 0.00 | 0.15 | 0.44 | 0.17 | h | 9999.00 | z | 0.65 | ||||||||||
| 2006 | 9999.00 | z | 0.84 | 0.20 | e | 9999.00 | z | 9999.00 | z | 9999.00 | z | 9999.00 | z | 9999.00 | z | 9999.00 | z | 9999.00 | z | 9999.00 | z | 9999.00 | z | 0.84 | ||
| Period of Record Statistics | ||||||||||||||||||||||||||
| MEAN | 0.26 | 0.30 | 0.42 | 0.39 | 0.44 | 0.29 | 0.17 | 0.34 | 0.27 | 0.29 | 0.31 | 0.28 | 0.78 | |||||||||||||
| S.D. | 0.18 | 0.38 | 0.36 | 0.37 | 0.42 | 0.21 | 0.22 | 0.47 | 0.29 | 0.34 | 0.23 | 0.16 | 0.25 | |||||||||||||
| SKEW | 0.26 | 3.72 | 1.80 | 2.98 | 1.61 | 0.28 | 2.81 | 1.90 | 1.68 | 3.38 | 1.25 | 0.79 | 0.94 | |||||||||||||
| MAX | 0.66 | 2.14 | 1.66 | 2.00 | 1.72 | 0.75 | 1.13 | 2.05 | 1.31 | 1.92 | 1.00 | 0.76 | 1.31 | |||||||||||||
| MIN | 0.00 | 0.05 | 0.00 | 0.03 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.02 | 0.00 | 0.48 | |||||||||||||
| NO YRS | 29 | 34 | 32 | 31 | 32 | 32 | 33 | 33 | 34 | 34 | 31 | 32 | 12 | |||||||||||||