YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1963 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 40.82 | b | 13.54 | c | 27.18 | j |
1964 | 22.90 | 26.62 | 29.23 | a | 54.50 | 71.57 | a | 74.29 | b | 82.20 | a | 73.33 | a | 65.97 | a | 56.25 | c | 35.97 | 12.84 | 50.47 | ||||||
1965 | 10.27 | a | 16.93 | 23.97 | 49.47 | 65.77 | 73.63 | 76.48 | 77.29 | 56.83 | 58.48 | d | 32.83 | 27.00 | 47.41 | |||||||||||
1966 | 2.63 | a | 17.68 | 37.35 | 44.47 | 60.48 | 76.21 | a | 81.40 | a | 75.90 | 69.90 | a | 56.00 | 30.55 | a | 19.90 | 47.71 | ||||||||
1967 | 16.47 | a | 16.96 | a | 34.81 | 47.00 | 60.35 | 73.48 | a | 79.03 | b | 79.23 | 74.87 | 53.35 | 35.17 | 20.97 | a | 49.31 | ||||||||
1968 | 15.90 | a | 16.83 | 41.87 | 54.73 | 62.90 | a | 72.36 | b | 77.39 | 72.71 | 68.43 | b | 55.87 | 36.30 | 17.19 | 49.37 | |||||||||
1969 | 8.97 | 23.50 | 31.58 | 56.30 | 66.97 | 67.53 | 78.30 | a | 83.47 | a | 69.33 | 47.48 | 38.17 | 24.19 | 49.65 | |||||||||||
1970 | 10.37 | a | 19.58 | b | 29.35 | 45.70 | 60.87 | a | 79.17 | 82.07 | a | 80.68 | 69.57 | 52.44 | d | 32.83 | 16.63 | a | 48.27 | |||||||
1971 | 6.55 | 22.75 | 33.00 | 54.03 | 65.80 | a | 77.67 | 75.45 | 80.32 | 69.10 | a | 56.25 | c | 33.00 | 19.23 | 49.43 | ||||||||||
1972 | 7.81 | 14.17 | 32.42 | 49.07 | 73.47 | a | 77.00 | 76.90 | a | 81.77 | 66.70 | 53.45 | 32.00 | a | 12.90 | 48.14 | ||||||||||
1973 | 21.55 | b | 24.96 | 45.13 | 53.52 | a | 67.58 | 78.50 | 80.86 | b | 82.45 | 68.37 | 61.27 | a | 32.30 | 18.65 | 52.93 | |||||||||
1974 | 11.43 | a | 23.50 | 31.70 | a | 52.30 | 59.00 | 77.60 | 83.90 | a | 74.90 | a | 64.86 | a | 58.26 | 38.79 | a | 28.19 | 50.37 | |||||||
1975 | ----- | z | ----- | z | ----- | z | ----- | z | 72.24 | f | 75.63 | 84.30 | a | 76.48 | h | 67.63 | 61.03 | a | 41.53 | 21.00 | 58.52 | f | ||||
1976 | 15.83 | a | 30.90 | 32.52 | 58.57 | 70.55 | 79.45 | a | 83.43 | a | 81.97 | 74.73 | 52.27 | a | 33.72 | a | 14.57 | c | 52.38 | |||||||
1977 | 7.85 | d | ----- | z | 42.67 | g | 62.57 | 79.45 | 76.13 | 82.65 | 74.29 | 64.60 | ----- | z | ----- | z | ----- | z | 63.93 | e | ||||||
1978 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1979 | 5.16 | 12.07 | a | 29.13 | a | 42.73 | 57.42 | 74.67 | 80.03 | 75.29 | 71.69 | a | 51.55 | 30.97 | 25.71 | 46.37 | ||||||||||
1980 | 14.50 | a | 19.72 | 33.66 | b | 59.96 | c | 76.65 | 77.90 | a | 84.03 | a | 75.52 | 67.30 | 50.97 | 37.70 | 17.32 | 51.27 | ||||||||
1981 | 17.97 | 25.59 | a | 39.00 | ----- | z | 66.35 | 72.93 | 83.81 | 79.87 | 67.73 | 51.55 | 41.90 | 16.10 | a | 51.16 | a | |||||||||
1982 | 2.35 | n | 19.79 | i | 28.50 | e | 51.08 | e | 67.92 | f | 69.68 | e | 81.65 | e | 76.40 | f | 67.71 | f | 55.96 | f | 30.36 | e | 22.74 | h | 52.25 | g |
1983 | 20.25 | k | ----- | z | ----- | z | 50.64 | e | 63.60 | f | 75.79 | f | 84.31 | e | 85.70 | d | 68.90 | i | 56.19 | 38.32 | h | 4.91 | i | 69.21 | h | |
1984 | 13.91 | h | 30.29 | h | 31.70 | d | 59.84 | e | 65.78 | d | 74.73 | d | 79.90 | 82.58 | g | 65.33 | l | 53.39 | h | 33.21 | k | ----- | z | 62.39 | g | |
1985 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 52.61 | 20.92 | d | 7.33 | a | 26.96 | i | |
1986 | 17.47 | a | 15.82 | 36.03 | a | 53.43 | 69.45 | 75.90 | 79.77 | 75.97 | 64.17 | 55.94 | 27.67 | 23.37 | a | 49.58 | ||||||||||
1987 | 19.58 | 30.18 | 32.29 | 64.17 | 68.73 | a | 80.03 | 81.90 | 75.45 | 69.07 | 51.26 | 40.43 | 24.23 | 53.11 | ||||||||||||
1988 | 8.97 | 14.10 | 32.67 | a | 53.73 | 73.55 | ----- | z | ----- | z | 81.87 | 68.20 | 53.39 | ----- | z | ----- | z | 48.31 | d | |||||||
1989 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1990 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 77.30 | 78.03 | 81.61 | 71.63 | 53.58 | 36.73 | 14.23 | 59.02 | e | |||||||
1991 | 9.35 | 24.71 | 36.71 | 56.13 | 69.23 | ----- | z | 77.65 | 82.71 | 65.27 | ----- | z | ----- | z | ----- | z | 52.72 | d | ||||||||
1992 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1993 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1994 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1995 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1996 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1997 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1998 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1999 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2000 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2001 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2002 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2003 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 |
2011 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2012 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2013 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 12.58 | 20.87 | 33.46 | 53.36 | 67.23 | 75.54 | 80.64 | 78.74 | 68.00 | 54.52 | 34.58 | 18.81 | 49.74 | |||||||||||||
S.D. | 5.68 | 5.50 | 4.76 | 5.66 | 5.84 | 3.12 | 2.74 | 3.76 | 3.81 | 3.38 | 5.01 | 5.38 | 1.96 | |||||||||||||
SKEW | 0.18 | 0.22 | 0.59 | 0.00 | 0.21 | -0.83 | -0.26 | 0.00 | -0.71 | 0.26 | -0.68 | -0.05 | 0.25 | |||||||||||||
MAX | 22.90 | 30.90 | 45.13 | 64.17 | 79.45 | 80.03 | 84.31 | 85.70 | 74.87 | 61.27 | 41.90 | 28.19 | 53.11 | |||||||||||||
MIN | 2.63 | 12.07 | 23.97 | 42.73 | 57.42 | 67.53 | 75.45 | 72.71 | 56.83 | 47.48 | 20.92 | 7.33 | 46.37 | |||||||||||||
YRS | 20 | 19 | 21 | 22 | 21 | 22 | 24 | 22 | 22 | 22 | 22 | 21 | 16 |