YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1967 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1968 | ----- | z | ----- | z | ----- | z | ----- | z | 65.13 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 65.13 | k |
1969 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1970 | ----- | z | ----- | z | ----- | z | ----- | z | 62.46 | c | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 62.46 | k |
1971 | ----- | z | ----- | z | 34.31 | o | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 20.38 | e | 20.38 | k |
1972 | 10.67 | g | 11.23 | c | 30.48 | b | 46.37 | ----- | z | 78.52 | a | 77.87 | 82.42 | 64.90 | 50.77 | 30.14 | a | 10.57 | a | 48.33 | b | |||||
1973 | ----- | z | 22.75 | ----- | z | 52.87 | 67.42 | 76.67 | 79.74 | 82.77 | ----- | z | 59.55 | 30.23 | 16.17 | b | 54.24 | c | ||||||||
1974 | 4.87 | 15.19 | b | 24.29 | 45.83 | 57.52 | 77.73 | 86.19 | 75.45 | 64.67 | 56.23 | ----- | z | ----- | z | 50.80 | b | |||||||||
1975 | 17.07 | a | 16.43 | 24.87 | 42.50 | ----- | z | ----- | z | 83.77 | 77.26 | 67.10 | 57.13 | 39.30 | 18.58 | 44.40 | b | |||||||||
1976 | 14.50 | a | 27.93 | ----- | z | 56.83 | 69.77 | 77.93 | 83.03 | 83.06 | 69.11 | b | ----- | z | ----- | z | ----- | z | 60.27 | d | ||||||
1977 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 32.40 | ----- | z | 32.40 | k | |
1978 | ----- | z | 13.25 | 30.26 | 49.17 | 72.74 | 76.07 | 80.17 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 53.61 | f | |||||
1979 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1980 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1981 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1982 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1983 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1984 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1985 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1986 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1987 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1988 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1989 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1990 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 17.10 | a | 17.10 | k |
1991 | 13.90 | 30.21 | 38.73 | a | 59.23 | 71.39 | 79.79 | a | 81.16 | 84.84 | 66.83 | 47.87 | 28.13 | g | 24.26 | d | 54.38 | a | ||||||||
1992 | 24.36 | f | 27.80 | d | 37.75 | g | 46.47 | 70.58 | 72.47 | 71.94 | 76.77 | 65.77 | 56.26 | 29.83 | 13.90 | 53.18 | b | |||||||||
1993 | 12.00 | a | 16.71 | 33.26 | 54.53 | 67.74 | 71.93 | 73.81 | 77.83 | a | 64.23 | 51.90 | 31.63 | 19.16 | 47.90 | |||||||||||
1994 | 0.03 | a | 10.64 | 37.00 | 54.37 | 70.74 | 76.60 | 76.26 | 77.61 | 72.67 | 56.71 | 39.13 | 24.48 | 49.69 | ||||||||||||
1995 | 13.97 | 17.79 | 31.97 | 45.07 | 64.77 | 81.90 | 80.10 | a | 81.00 | 69.80 | 51.06 | 24.20 | 14.42 | 48.00 | ||||||||||||
1996 | 2.84 | 15.52 | 22.23 | 40.53 | 62.94 | 79.78 | c | 78.60 | a | 82.77 | a | 70.74 | c | 55.24 | f | 20.33 | f | 10.42 | e | 46.64 | b | |||||
1997 | ----- | z | 20.77 | b | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 80.31 | b | 75.75 | b | ----- | z | ----- | z | 31.52 | d | 52.09 | h |
1998 | 15.92 | f | 31.25 | d | 32.29 | c | 63.18 | h | 73.84 | f | 72.65 | d | 81.33 | a | 84.85 | d | 76.09 | g | 55.52 | f | 34.48 | g | 20.56 | f | 60.47 | g |
1999 | 11.89 | d | 27.63 | i | 36.27 | e | 56.04 | d | 66.88 | e | 76.17 | g | 83.82 | i | 80.15 | d | 65.65 | g | 56.83 | h | 45.85 | d | ----- | z | 49.51 | f |
2000 | 13.59 | b | 33.17 | f | 45.26 | 53.22 | c | 68.59 | d | 72.46 | b | 80.86 | b | 80.83 | a | 67.17 | a | 57.17 | a | 31.96 | c | 6.32 | 52.49 | a | ||
2001 | 21.38 | b | 11.77 | b | 32.19 | j | 52.43 | g | 67.82 | c | 74.05 | i | 82.61 | c | 82.40 | f | 72.58 | d | 51.23 | a | 45.12 | e | 26.00 | g | 50.36 | e |
2002 | 20.22 | d | 32.58 | b | 27.03 | a | 49.45 | h | 60.48 | h | 79.13 | g | 82.56 | d | 78.25 | c | 73.52 | i | 42.86 | c | 35.84 | e | 26.33 | j | 45.62 | e |
2003 | 16.46 | e | 13.89 | i | 29.04 | g | 45.80 | t | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 16.46 | k |
2004 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2005 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2006 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2007 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2008 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2009 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2010 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 12.52 | 20.11 | 31.84 | 50.22 | 67.10 | 76.50 | 80.00 | 80.39 | 68.56 | 53.23 | 34.64 | 17.48 | 48.53 | |||||||||||||
S.D. | 6.40 | 7.62 | 6.46 | 5.82 | 4.02 | 3.25 | 3.68 | 2.93 | 3.58 | 4.80 | 6.55 | 6.77 | 1.00 | |||||||||||||
SKEW | -0.65 | 0.39 | 0.38 | -0.11 | -0.80 | -0.11 | -0.65 | -0.04 | 0.56 | -0.72 | 0.43 | 0.36 | 0.70 | |||||||||||||
MAX | 21.38 | 32.58 | 45.26 | 59.23 | 72.74 | 81.90 | 86.19 | 84.85 | 75.75 | 59.55 | 45.85 | 31.52 | 49.69 | |||||||||||||
MIN | 0.03 | 10.64 | 22.23 | 40.53 | 57.52 | 71.93 | 71.94 | 75.45 | 64.23 | 42.86 | 24.20 | 6.32 | 47.90 | |||||||||||||
YRS | 13 | 16 | 13 | 14 | 15 | 13 | 16 | 16 | 13 | 12 | 12 | 13 | 3 |