YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1963 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 40.15 | q | 38.45 | 21.31 | a | -8.77 | 17.00 | i | ||
1964 | -1.90 | a | -4.14 | 0.42 | 25.20 | 40.71 | 47.97 | 53.74 | 47.74 | 39.17 | 30.97 | 18.13 | -8.16 | 24.15 | ||||||||||||
1965 | -16.84 | -10.64 | -3.03 | 28.93 | 39.42 | 46.67 | 51.29 | 46.68 | 36.40 | 33.00 | 13.77 | 8.55 | 22.85 | |||||||||||||
1966 | -23.32 | -15.36 | 15.61 | 26.60 | 34.65 | 49.14 | a | 55.68 | 50.58 | 41.53 | 30.07 | a | 10.80 | -3.43 | a | 22.71 | ||||||||||
1967 | -6.65 | -18.32 | 7.10 | 25.03 | 32.16 | 47.67 | 50.71 | 45.68 | 41.33 | 29.87 | 15.67 | -0.26 | 22.50 | |||||||||||||
1968 | -10.45 | -10.79 | 14.97 | 26.87 | 37.58 | 48.37 | 51.45 | 50.07 | b | ----- | z | 34.57 | j | 21.55 | a | -2.40 | a | 22.72 | b | |||||||
1969 | -13.10 | b | -1.59 | a | 1.23 | a | 30.07 | c | 39.58 | 41.87 | 50.93 | a | 53.13 | a | 42.92 | d | 29.94 | 18.21 | a | 5.73 | a | 24.91 | ||||
1970 | -14.32 | -9.96 | -0.90 | 25.37 | c | 37.47 | a | 51.39 | b | 55.52 | h | 47.50 | c | 41.15 | c | 33.52 | 15.40 | -8.97 | a | 19.79 | a | |||||
1971 | -20.42 | -4.81 | a | 9.23 | 27.14 | a | 35.90 | 52.61 | b | 49.19 | 48.13 | 42.07 | 37.19 | 18.23 | -1.55 | 24.41 | ||||||||||
1972 | -18.61 | -12.32 | a | 7.29 | 24.39 | b | 44.58 | 46.27 | 49.65 | 51.73 | a | 39.37 | 30.10 | 19.87 | -5.81 | 23.04 | ||||||||||
1973 | -3.42 | -1.14 | 24.81 | 26.97 | 38.29 | 48.45 | a | 50.87 | a | 55.45 | 42.21 | a | 38.84 | 16.93 | 0.16 | 28.20 | ||||||||||
1974 | -13.39 | -7.68 | 5.16 | 28.10 | 37.48 | 48.60 | 55.65 | 49.42 | 37.03 | 32.42 | 19.90 | 8.43 | a | 25.09 | ||||||||||||
1975 | -4.55 | -5.57 | 2.58 | 22.90 | 41.52 | 49.47 | 57.29 | 50.61 | 39.13 | 34.55 | b | 18.80 | -3.42 | 25.28 | ||||||||||||
1976 | -9.90 | 3.66 | 5.03 | 30.57 | 35.29 | 50.47 | 51.03 | 50.71 | 38.80 | 25.68 | 10.63 | -13.55 | 23.20 | |||||||||||||
1977 | -15.71 | 0.89 | 18.06 | 29.67 | 47.87 | 50.03 | 53.81 | 44.35 | 44.24 | a | 33.39 | 12.41 | c | -5.19 | 26.15 | |||||||||||
1978 | -11.94 | -9.89 | a | 6.35 | 28.40 | 43.74 | 47.69 | d | 54.29 | 52.29 | 46.33 | 33.68 | 10.40 | -12.26 | 24.09 | |||||||||||
1979 | -21.65 | -12.07 | 11.16 | 24.17 | 36.10 | 45.87 | 54.16 | 48.29 | 43.37 | 29.77 | 16.20 | 8.65 | 23.67 | |||||||||||||
1980 | -6.55 | -4.97 | 1.13 | 30.20 | 40.26 | 46.63 | 52.26 | 50.23 | 40.27 | 29.67 | a | 19.10 | -4.55 | 24.47 | ||||||||||||
1981 | -5.84 | 4.75 | 18.29 | 29.17 | 37.71 | 48.60 | 54.87 | 53.13 | 42.30 | 32.97 | 26.57 | 0.48 | 28.58 | |||||||||||||
1982 | -23.29 | -4.36 | 7.29 | 23.90 | 44.58 | 43.73 | 55.16 | 49.00 | 43.03 | 37.00 | 14.14 | a | 8.50 | a | 24.89 | |||||||||||
1983 | 3.52 | 9.11 | 20.52 | 26.07 | 34.70 | a | 49.23 | 57.58 | 54.71 | 45.04 | b | 33.74 | 24.29 | b | -13.68 | c | 28.73 | |||||||||
1984 | -7.48 | b | 11.19 | b | 7.87 | 30.10 | a | 33.29 | 51.10 | a | 53.03 | a | 53.77 | a | ----- | z | ----- | z | ----- | z | ----- | z | 29.11 | d | ||
1985 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1986 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 45.81 | 40.62 | a | 28.18 | c | ----- | z | ----- | z | 38.20 | i | |
1987 | ----- | z | 13.75 | 16.20 | a | 30.63 | ----- | z | ----- | z | ----- | z | 44.06 | o | 41.22 | c | ----- | z | 19.30 | c | 8.45 | b | 21.59 | f | ||
1988 | -11.48 | -12.31 | ----- | z | 25.19 | d | 42.97 | a | 51.45 | a | 53.53 | a | 51.93 | c | 40.36 | e | 25.43 | a | 15.66 | a | -2.07 | a | 25.51 | a | ||
1989 | -8.97 | b | -18.74 | a | 6.23 | a | 23.23 | 40.60 | a | 46.71 | b | 57.52 | ----- | z | ----- | z | 26.00 | d | 9.54 | d | -11.93 | b | 17.02 | b | ||
1990 | ----- | z | -6.04 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | -6.04 | k | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | -11.58 | -5.09 | 8.81 | 27.04 | 38.98 | 48.26 | 53.35 | 50.04 | 41.27 | 31.93 | 16.95 | -2.38 | 24.83 | |||||||||||||
S.D. | 7.10 | 8.65 | 7.45 | 2.50 | 3.99 | 2.50 | 2.52 | 2.99 | 2.43 | 3.82 | 4.39 | 7.42 | 1.96 | |||||||||||||
SKEW | 0.03 | 0.54 | 0.43 | -0.02 | 0.35 | -0.59 | 0.14 | -0.05 | -0.01 | 0.07 | 0.12 | 0.17 | 0.89 | |||||||||||||
MAX | 3.52 | 13.75 | 24.81 | 30.63 | 47.87 | 52.61 | 57.58 | 55.45 | 46.33 | 38.84 | 26.57 | 8.65 | 28.73 | |||||||||||||
MIN | -23.32 | -18.74 | -3.03 | 22.90 | 32.16 | 41.87 | 49.19 | 44.35 | 36.40 | 25.43 | 9.54 | -13.68 | 22.50 | |||||||||||||
YRS | 23 | 25 | 23 | 24 | 23 | 23 | 22 | 23 | 22 | 23 | 24 | 24 | 18 |