YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1967 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 53.50 | a | 53.85 | a | 46.22 | a | 29.13 | 18.20 | c | 9.93 | a | 35.14 | f | |
1968 | 11.19 | b | 4.21 | a | 16.34 | 23.15 | 40.15 | a | 52.08 | 58.98 | a | 54.00 | c | 42.41 | a | 29.29 | 15.98 | b | 0.44 | 29.02 | ||||||
1969 | 9.97 | b | 9.13 | a | 18.12 | a | 28.93 | a | 48.13 | a | 53.00 | 53.60 | 48.78 | a | 49.43 | a | 35.93 | a | 11.50 | a | 16.29 | c | 31.90 | |||
1970 | ----- | z | 15.28 | c | 21.05 | a | 23.22 | 43.98 | d | 51.85 | d | 52.92 | 51.39 | c | 41.48 | ----- | z | 26.54 | b | 6.20 | c | 33.39 | b | |||
1971 | -6.25 | a | -2.20 | a | 3.62 | b | 20.90 | a | 37.27 | c | 50.58 | d | 54.35 | g | 53.15 | g | 45.16 | a | 31.22 | b | 14.38 | e | 8.69 | b | 20.34 | b |
1972 | 3.82 | 5.38 | a | -0.52 | a | 15.88 | 40.74 | 50.82 | b | 58.98 | b | 61.57 | q | 44.52 | a | 34.98 | d | 17.72 | a | 10.60 | f | 27.23 | b | |||
1973 | ----- | z | 12.11 | 8.19 | j | 27.04 | b | 43.56 | g | 53.52 | d | 55.11 | d | 50.73 | c | 45.90 | 28.76 | b | 18.02 | b | 8.58 | a | 33.31 | c | ||
1974 | 7.05 | c | -8.20 | a | 19.94 | f | 29.66 | b | 45.41 | b | 50.38 | a | 54.09 | b | 55.42 | a | 46.67 | c | 25.33 | b | 11.98 | a | -2.50 | a | 28.66 | a |
1975 | 1.17 | d | 1.82 | 13.13 | a | 21.90 | a | 39.72 | f | 50.02 | a | 56.17 | d | 54.98 | b | 43.16 | b | 29.19 | d | 6.43 | c | 3.23 | a | 25.56 | a | |
1976 | 5.39 | d | -3.14 | o | 16.57 | c | 24.54 | b | 40.67 | h | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 6.91 | c | 13.35 | h |
1977 | 22.00 | a | ----- | z | 7.95 | 9.93 | j | 36.69 | g | 51.03 | a | 56.82 | a | 56.60 | b | ----- | z | ----- | z | 12.90 | 15.28 | b | 31.80 | e | ||
1978 | 25.12 | a | 21.17 | e | 16.05 | 31.31 | a | 44.48 | b | 47.34 | a | 56.39 | 56.68 | a | 45.97 | a | 28.52 | 23.00 | 16.40 | 34.37 | ||||||
1979 | 19.77 | 1.71 | 19.18 | 29.43 | 45.35 | 49.60 | 53.36 | b | 53.98 | 45.90 | 34.84 | 24.97 | -3.73 | a | 31.20 | |||||||||||
1980 | -0.24 | 12.74 | 21.60 | 30.65 | 44.40 | 46.17 | a | 55.80 | a | 50.92 | 44.20 | 31.56 | 19.05 | -1.47 | 29.62 | |||||||||||
1981 | 17.21 | 7.88 | 27.26 | 27.97 | 46.13 | 52.25 | 53.13 | 51.56 | 40.84 | a | 28.29 | 12.67 | a | 0.98 | 30.51 | |||||||||||
1982 | 4.37 | a | 8.59 | a | 14.55 | 14.60 | a | 33.94 | g | 52.79 | f | 55.46 | c | 54.02 | g | 44.54 | e | 26.92 | a | 20.05 | i | 10.14 | i | 24.15 | e | |
1983 | 5.59 | c | 12.57 | 20.11 | 29.13 | 44.02 | j | ----- | z | ----- | z | ----- | z | ----- | z | 29.42 | ----- | z | ----- | z | 19.37 | g | ||||
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 | ----- | z | ----- | z |
1991 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 9.01 | 7.30 | 15.36 | 25.22 | 43.61 | 50.67 | 55.31 | 53.24 | 44.74 | 30.24 | 16.67 | 6.09 | 31.10 | |||||||||||||
S.D. | 9.09 | 7.58 | 7.39 | 5.23 | 3.25 | 2.09 | 2.03 | 2.53 | 2.26 | 3.12 | 5.59 | 6.89 | 1.91 | |||||||||||||
SKEW | 0.32 | -0.25 | -0.74 | -0.76 | -0.68 | -0.80 | 0.58 | -0.19 | 0.05 | 0.57 | 0.17 | 0.17 | 0.72 | |||||||||||||
MAX | 25.12 | 21.17 | 27.26 | 31.31 | 48.13 | 53.52 | 58.98 | 56.68 | 49.43 | 35.93 | 26.54 | 16.40 | 34.37 | |||||||||||||
MIN | -6.25 | -8.20 | -0.52 | 14.60 | 37.27 | 46.17 | 52.92 | 48.78 | 40.84 | 25.33 | 6.43 | -3.73 | 29.02 | |||||||||||||
YRS | 14 | 14 | 14 | 15 | 10 | 13 | 14 | 12 | 14 | 14 | 14 | 14 | 6 |