YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1948 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1949 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1950 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1951 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1952 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1953 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1954 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1955 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1956 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1957 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1958 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1959 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1960 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1961 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1962 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1963 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1964 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1965 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1966 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1967 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1968 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1969 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1970 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1971 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | 30.00 | e | 36.00 | a | 50.00 | 42.00 | 33.00 | 15.00 | 4.00 | 10.00 | a | ----- | z | |||||
1981 | -4.00 | a | -23.00 | 17.00 | 17.00 | 26.00 | 35.00 | 49.00 | a | 47.00 | 36.00 | a | 11.00 | 9.00 | -7.00 | -23.00 | c | |||||||||
1982 | -14.00 | a | -25.00 | a | 9.00 | a | 8.00 | 22.00 | 35.00 | 41.00 | 49.00 | 37.00 | 19.00 | -5.00 | -0.00 | -25.00 | c | |||||||||
1983 | 5.00 | a | 2.00 | 10.00 | 4.00 | 26.00 | 37.00 | 47.00 | 51.00 | 21.00 | 19.00 | a | -7.00 | -21.00 | -21.00 | b | ||||||||||
1984 | -28.00 | 8.00 | 9.00 | 11.00 | 29.00 | 35.00 | 47.00 | 47.00 | 26.00 | a | 19.00 | b | 12.00 | a | -1.00 | a | -28.00 | e | ||||||||
1985 | -20.00 | -20.00 | 6.00 | 15.00 | 30.00 | 34.00 | a | 50.00 | 41.00 | 16.00 | 16.00 | a | -12.00 | -23.00 | -23.00 | b | ||||||||||
1986 | 2.00 | -10.00 | 18.00 | 18.00 | 29.00 | 41.00 | a | 49.00 | 45.00 | 30.00 | 21.00 | 2.00 | a | -15.00 | a | -15.00 | c | |||||||||
1987 | -11.00 | b | 9.00 | 4.00 | 15.00 | 32.00 | 40.00 | 46.00 | c | 43.00 | 32.00 | a | 17.00 | a | 7.00 | -12.00 | c | -12.00 | j | |||||||
1988 | -15.00 | a | -6.00 | a | 7.00 | 7.00 | 26.00 | a | 39.00 | 43.00 | 44.00 | 32.00 | 17.00 | 9.00 | -10.00 | -15.00 | c | |||||||||
1989 | -1.00 | -35.00 | -3.00 | 8.00 | b | 26.00 | 39.00 | 50.00 | 47.00 | 31.00 | c | 11.00 | a | 4.00 | -35.00 | d | -35.00 | j | ||||||||
1990 | 3.00 | b | -16.00 | 9.00 | 24.00 | 23.00 | 39.00 | 45.00 | a | 46.00 | 33.00 | 17.00 | a | 6.00 | -33.00 | a | -33.00 | e | ||||||||
1991 | -12.00 | a | 4.00 | 6.00 | 13.00 | 25.00 | 45.00 | 49.00 | 50.00 | 29.00 | -1.00 | -5.00 | 4.00 | -12.00 | a | |||||||||||
1992 | -11.00 | 12.00 | 4.00 | 13.00 | a | 32.00 | 37.00 | 42.00 | a | 39.00 | a | 28.00 | a | 17.00 | -2.00 | -11.00 | a | -11.00 | e | |||||||
1993 | -16.00 | a | -14.00 | 6.00 | 20.00 | 24.00 | 39.00 | 43.00 | 42.00 | 25.00 | 4.00 | -17.00 | -3.00 | a | -17.00 | b | ||||||||||
1994 | -7.00 | a | -14.00 | 2.00 | 16.00 | 31.00 | 38.00 | a | 41.00 | a | 49.00 | 31.00 | a | 21.00 | 9.00 | 2.00 | -14.00 | d | ||||||||
1995 | -18.00 | a | -6.00 | -1.00 | 17.00 | 30.00 | 35.00 | a | 48.00 | a | 41.00 | 24.00 | a | 19.00 | -6.00 | -0.00 | -18.00 | d | ||||||||
1996 | -17.00 | -28.00 | -6.00 | a | 14.00 | 32.00 | c | 38.00 | 50.00 | 43.00 | 24.00 | 20.00 | -4.00 | -8.00 | a | -28.00 | e | |||||||||
1997 | -23.00 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | -11.00 | -10.13 | 6.06 | 13.75 | 27.82 | 37.76 | 46.47 | 45.06 | 28.71 | 15.41 | 0.24 | -9.59 | -18.30 | |||||||||||||
S.D. | 9.47 | 14.26 | 6.36 | 5.21 | 3.28 | 2.77 | 3.34 | 3.54 | 5.47 | 6.04 | 8.27 | 12.63 | 4.45 | |||||||||||||
SKEW | 0.17 | 0.02 | 0.06 | -0.08 | -0.23 | 0.87 | -0.48 | 0.06 | -0.62 | -1.59 | -0.42 | -0.61 | -0.17 | |||||||||||||
MAX | 5.00 | 12.00 | 18.00 | 24.00 | 32.00 | 45.00 | 50.00 | 51.00 | 37.00 | 21.00 | 12.00 | 10.00 | -12.00 | |||||||||||||
MIN | -28.00 | -35.00 | -6.00 | 4.00 | 22.00 | 34.00 | 41.00 | 39.00 | 16.00 | -1.00 | -17.00 | -35.00 | -25.00 | |||||||||||||
YRS | 17 | 16 | 16 | 16 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 10 |