YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1967 | ----- | z | ----- | z | 62.87 | 57.30 | c | 76.10 | a | 81.23 | 95.48 | 93.81 | 86.77 | ----- | z | 62.80 | 40.31 | b | 72.96 | c | ||||||
1968 | 50.35 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 91.29 | c | 85.48 | b | 83.97 | 72.10 | 59.70 | 43.81 | 69.53 | e | |||||
1969 | 47.35 | 44.21 | 53.45 | 68.97 | 81.94 | 85.03 | 92.26 | 94.84 | 86.73 | 68.52 | 60.30 | 55.06 | 69.89 | |||||||||||||
1970 | 54.03 | 59.68 | 61.52 | 64.40 | 81.39 | 87.00 | 94.19 | 93.13 | 82.59 | a | 70.45 | 58.63 | 44.84 | 70.99 | ||||||||||||
1971 | 47.42 | 55.96 | 63.17 | a | 67.57 | 74.26 | 88.69 | a | 94.47 | a | 92.63 | a | 83.07 | a | 68.67 | a | 57.20 | ----- | z | 72.10 | a | |||||
1972 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1973 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1974 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1975 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1976 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1977 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1978 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | 67.31 | b | 57.73 | d | 49.62 | g | 62.52 | j |
1987 | 38.35 | e | 48.04 | d | 55.59 | b | 71.96 | b | 72.97 | b | 87.07 | b | 85.96 | c | 89.92 | e | 84.16 | e | 73.20 | a | ----- | z | 48.97 | b | 68.74 | a |
1988 | 38.48 | b | 53.50 | e | 58.50 | c | 60.88 | e | 72.37 | a | 85.00 | ----- | z | ----- | z | 79.33 | ----- | z | 57.20 | 40.29 | j | 63.16 | d | |||
1989 | 35.35 | 44.11 | a | 60.39 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 46.62 | i | ||
1990 | ----- | z | 36.57 | n | 53.39 | 69.07 | 73.06 | 87.50 | 91.97 | 87.52 | 78.97 | ----- | z | 56.40 | 41.69 | b | 71.06 | c | ||||||||
1991 | 44.23 | a | 60.86 | 51.72 | m | 63.73 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 56.27 | i | ||
1992 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1993 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 87.36 | c | 81.93 | b | 71.47 | a | 53.07 | a | 41.83 | b | 67.13 | g |
1994 | 46.03 | ----- | z | 66.57 | a | ----- | z | 75.16 | 88.48 | e | 92.48 | f | 91.30 | h | 81.53 | 68.52 | 47.04 | d | 44.84 | 64.77 | d | |||||
1995 | 42.70 | a | 61.69 | b | 56.71 | 63.43 | ----- | z | 77.30 | c | 90.13 | 89.53 | a | 84.86 | b | 74.00 | 65.47 | 50.34 | b | 68.74 | a | |||||
1996 | 50.43 | a | 56.71 | a | 61.70 | a | 69.28 | a | 77.32 | c | 87.97 | a | 94.03 | 91.07 | a | 81.07 | 69.52 | d | 56.45 | a | 46.83 | b | 70.20 | |||
1997 | 39.26 | 51.81 | a | 67.03 | 66.71 | b | 81.00 | a | 83.76 | a | 90.61 | 90.13 | a | 81.48 | a | 71.97 | 56.60 | 42.71 | 68.59 | |||||||
1998 | 48.40 | a | 46.37 | a | 56.05 | k | 60.83 | f | 68.29 | c | 78.48 | e | 92.07 | c | ----- | z | ----- | z | ----- | z | 64.00 | x | 51.89 | c | 64.25 | f |
1999 | 53.28 | b | 52.78 | a | 63.11 | d | 59.46 | d | 73.62 | g | 83.63 | c | 88.61 | c | 86.37 | d | 82.00 | c | 75.50 | a | 63.17 | g | 50.00 | d | 69.47 | b |
2000 | 49.44 | f | 51.95 | g | 57.33 | a | 69.93 | c | 78.22 | d | ----- | z | ----- | z | 88.50 | a | 83.20 | e | 68.43 | c | 49.24 | a | 52.79 | b | 68.46 | d |
2001 | 48.79 | g | 45.86 | f | 60.23 | a | 60.81 | c | 82.38 | e | ----- | z | 88.67 | d | 93.44 | v | 85.50 | j | 77.45 | 57.10 | ----- | z | 71.11 | f | ||
2002 | 45.07 | a | 58.00 | 59.16 | 70.54 | d | 75.89 | c | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 61.73 | g | ||
2003 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 95.47 | n | 88.68 | 85.43 | 81.61 | m | 51.96 | d | 46.77 | a | 68.21 | h | ||
2004 | ----- | z | 46.52 | ----- | z | 67.32 | b | 77.06 | 86.96 | f | 90.00 | h | 87.65 | 82.12 | e | 66.16 | 54.04 | c | ----- | z | 68.70 | e | ||||
2005 | 51.94 | n | 50.21 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 49.50 | m | 50.21 | k | |
2006 | 49.29 | 57.39 | j | 51.95 | j | 64.63 | 79.90 | 90.07 | 93.58 | 89.26 | 80.77 | ----- | z | ----- | z | ----- | z | 78.21 | e | |||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 45.63 | 52.70 | 60.04 | 65.65 | 76.71 | 85.09 | 91.67 | 89.74 | 82.78 | 70.88 | 56.53 | 46.85 | 69.92 | |||||||||||||
S.D. | 5.56 | 6.00 | 4.11 | 4.26 | 3.99 | 3.86 | 2.68 | 2.73 | 2.23 | 3.18 | 4.56 | 4.50 | 1.00 | |||||||||||||
SKEW | -0.31 | 0.00 | -0.02 | -0.40 | -0.28 | -0.78 | -0.55 | 0.38 | 0.23 | 0.51 | -0.23 | 0.26 | -0.42 | |||||||||||||
MAX | 54.03 | 61.69 | 67.03 | 71.96 | 82.38 | 90.07 | 95.48 | 94.84 | 86.77 | 77.45 | 65.47 | 55.06 | 70.99 | |||||||||||||
MIN | 35.35 | 44.11 | 53.39 | 57.30 | 68.29 | 77.30 | 85.96 | 85.48 | 78.97 | 66.16 | 47.04 | 40.31 | 68.59 | |||||||||||||
YRS | 16 | 15 | 16 | 17 | 16 | 14 | 14 | 16 | 18 | 15 | 17 | 15 | 4 |