YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1967 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 46.32 | 44.80 | a | 36.13 | 22.42 | 11.11 | c | 1.87 | a | 27.11 | f | |||
1968 | 4.62 | b | -3.71 | a | 6.61 | 14.00 | 29.84 | 39.77 | 51.48 | 46.10 | b | 33.00 | a | 23.61 | 9.83 | a | -7.74 | 20.62 | ||||||||
1969 | 5.10 | a | 2.30 | a | 10.27 | a | 21.00 | a | 39.55 | 45.67 | 45.71 | 40.93 | a | 40.77 | 30.77 | 6.17 | a | 10.25 | c | 24.87 | ||||||
1970 | ----- | z | 8.64 | c | 15.30 | a | 17.50 | 32.93 | d | 41.88 | d | 46.03 | 44.07 | c | 33.13 | ----- | z | 20.86 | b | -0.69 | b | 25.97 | b | |||
1971 | -13.87 | a | -10.30 | a | -5.97 | 14.37 | 33.32 | c | 42.92 | d | 46.28 | f | 45.29 | g | 37.93 | a | 25.65 | 7.41 | c | 0.24 | b | 13.17 | b | |||
1972 | -2.42 | -1.29 | a | -8.94 | 6.23 | 35.81 | 44.25 | b | 50.93 | b | 53.21 | q | 37.14 | a | 30.56 | d | 12.17 | a | 3.81 | e | 18.93 | a | ||||
1973 | ----- | z | 5.18 | -5.60 | a | 21.59 | a | 35.54 | g | 48.67 | c | 47.96 | d | 44.23 | a | 38.10 | 22.90 | b | 11.39 | b | 1.60 | a | 23.60 | b | ||
1974 | -0.10 | a | -19.07 | 12.70 | d | 19.64 | b | 33.79 | b | 39.23 | 44.13 | a | 47.33 | a | 33.75 | b | 17.17 | a | 6.03 | -11.61 | 18.58 | |||||
1975 | -9.80 | a | -7.21 | 1.57 | a | 12.60 | 30.31 | e | 39.93 | a | 46.00 | c | 45.28 | b | 35.28 | a | 21.52 | d | -1.41 | c | -5.63 | a | 17.37 | |||
1976 | -2.19 | d | -9.70 | b | 6.96 | c | 19.32 | b | 33.91 | h | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | -1.04 | c | 2.67 | g |
1977 | 15.35 | ----- | z | -6.65 | -4.90 | j | 28.63 | a | 39.40 | 48.30 | a | 45.66 | b | ----- | z | 19.97 | 4.93 | 9.41 | b | 22.78 | c | |||||
1978 | 20.84 | 15.35 | e | 8.48 | 23.41 | a | 33.97 | 40.00 | 47.16 | 48.03 | a | 39.27 | 22.52 | 17.33 | 8.45 | 27.07 | ||||||||||
1979 | 14.45 | -6.25 | 13.23 | 23.80 | 34.52 | 40.57 | 44.42 | 46.71 | 34.90 | 26.42 | 19.53 | -10.87 | 23.45 | |||||||||||||
1980 | -8.97 | 6.03 | 14.94 | 22.27 | 35.39 | 39.28 | a | 45.97 | 42.26 | 34.83 | 24.71 | 13.73 | -6.87 | 21.96 | ||||||||||||
1981 | 10.65 | 0.25 | 20.16 | 20.53 | 34.55 | 40.47 | 44.19 | 41.00 | 32.97 | 23.32 | 6.60 | -5.74 | 22.41 | |||||||||||||
1982 | -1.13 | 2.21 | 6.45 | 5.43 | 26.68 | 42.67 | 47.62 | b | 45.83 | g | 37.46 | b | 19.39 | 13.13 | g | 4.09 | h | 20.75 | c | |||||||
1983 | -2.80 | a | 6.71 | 12.52 | 21.50 | 34.59 | i | ----- | z | ----- | z | ----- | z | ----- | z | 22.00 | ----- | z | ----- | z | 11.99 | 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 | 2.12 | -0.72 | 6.38 | 17.55 | 33.02 | 41.76 | 46.87 | 44.70 | 36.05 | 23.53 | 10.41 | -0.97 | 22.04 | |||||||||||||
S.D. | 10.25 | 8.83 | 8.98 | 5.84 | 3.40 | 2.81 | 2.26 | 2.33 | 2.47 | 3.74 | 6.12 | 7.06 | 3.19 | |||||||||||||
SKEW | 0.29 | -0.25 | -0.44 | -0.99 | -0.16 | 1.21 | 0.77 | -0.39 | 0.32 | 0.53 | 0.08 | 0.13 | 0.03 | |||||||||||||
MAX | 20.84 | 15.35 | 20.16 | 23.80 | 39.55 | 48.67 | 51.48 | 48.03 | 40.77 | 30.77 | 20.86 | 10.25 | 27.07 | |||||||||||||
MIN | -13.87 | -19.07 | -8.94 | 5.43 | 26.68 | 39.23 | 44.13 | 40.93 | 32.97 | 17.17 | -1.41 | -11.61 | 17.37 | |||||||||||||
YRS | 14 | 15 | 16 | 15 | 13 | 14 | 14 | 12 | 14 | 15 | 14 | 15 | 8 |