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 | 30.00 | n | 32.00 | 34.00 | 18.00 | a | 11.00 | -8.00 | -11.00 | ----- | z | |||||
1959 | -21.00 | -11.00 | -4.00 | 3.00 | 26.00 | 26.00 | 32.00 | 32.00 | 24.00 | 17.00 | 1.00 | -7.00 | a | -21.00 | a | |||||||||||
1960 | -20.00 | -22.00 | -1.00 | 10.00 | 18.00 | 30.00 | 35.00 | 28.00 | 26.00 | 2.00 | -1.00 | -11.00 | -22.00 | |||||||||||||
1961 | -13.00 | a | -11.00 | -6.00 | 7.00 | 20.00 | a | 32.00 | 31.00 | 32.00 | a | 14.00 | 10.00 | -3.00 | -17.00 | a | -17.00 | d | ||||||||
1962 | -40.00 | -30.00 | a | -19.00 | 17.00 | 17.00 | 27.00 | 32.00 | 28.00 | 20.00 | 21.00 | 6.00 | -19.00 | -40.00 | a | |||||||||||
1963 | -39.00 | c | -5.00 | -17.00 | 9.00 | 14.00 | 31.00 | a | 35.00 | 35.00 | 30.00 | 26.00 | 3.00 | -14.00 | -39.00 | d | ||||||||||
1964 | -17.00 | d | -14.00 | -12.00 | ----- | z | ----- | z | ----- | z | ----- | z | 27.00 | s | 25.00 | 15.00 | a | 1.00 | a | -15.00 | b | ----- | z | |||
1965 | -7.00 | o | -10.00 | -10.00 | a | 25.00 | b | 22.00 | a | 30.00 | 34.00 | 29.00 | 22.00 | 20.00 | -0.00 | b | -8.00 | a | -10.00 | v | ||||||
1966 | -13.00 | c | -11.00 | -12.00 | 7.00 | d | 25.00 | 29.00 | 36.00 | 33.00 | 30.00 | 14.00 | 4.00 | -6.00 | -13.00 | g | ||||||||||
1967 | -3.00 | l | -7.00 | -2.00 | 14.00 | 12.00 | 24.00 | 37.00 | 38.00 | 25.00 | 11.00 | a | 2.00 | -14.00 | a | -14.00 | n | |||||||||
1968 | -14.00 | -5.00 | -0.00 | 5.00 | 8.00 | 24.00 | 27.00 | 29.00 | 24.00 | 11.00 | -8.00 | -5.00 | -14.00 | |||||||||||||
1969 | -11.00 | -11.00 | -9.00 | 20.00 | 25.00 | 26.00 | 34.00 | a | 40.00 | a | 29.00 | 13.00 | ----- | z | -20.00 | ----- | z | |||||||||
1970 | -18.00 | -1.00 | -5.00 | -6.00 | 17.00 | 26.00 | 32.00 | 38.00 | 19.00 | 5.00 | 4.00 | -2.00 | -18.00 | |||||||||||||
1971 | -26.00 | a | -15.00 | -10.00 | 12.00 | a | 22.00 | 29.00 | 35.00 | 37.00 | 19.00 | 12.00 | ----- | 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 | ----- | 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 | ----- | 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 | 9.00 | a | -5.00 | a | -7.00 | a | ----- | z |
2000 | -7.00 | a | -0.00 | a | 5.00 | 10.00 | 20.00 | b | 31.00 | a | 35.00 | 41.00 | 22.00 | a | 20.00 | a | -11.00 | -10.00 | -11.00 | g | ||||||
2001 | -14.00 | a | -16.00 | b | 9.00 | 11.00 | b | 18.00 | b | 24.00 | 36.00 | a | 34.00 | a | ----- | z | 21.00 | c | ----- | z | ----- | z | ----- | z | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | -19.46 | -11.27 | -6.20 | 10.29 | 18.86 | 27.79 | 33.53 | 33.87 | 23.13 | 14.00 | -1.07 | -11.07 | -24.43 | |||||||||||||
S.D. | 10.11 | 7.75 | 7.70 | 7.56 | 5.16 | 2.83 | 2.56 | 4.29 | 4.64 | 6.23 | 5.20 | 5.34 | 10.63 | |||||||||||||
SKEW | -1.09 | -0.78 | 0.24 | -0.09 | -0.49 | -0.05 | -0.99 | 0.11 | -0.14 | 0.04 | -0.56 | -0.13 | -0.75 | |||||||||||||
MAX | -7.00 | -0.00 | 9.00 | 25.00 | 26.00 | 32.00 | 37.00 | 41.00 | 30.00 | 26.00 | 6.00 | -2.00 | -14.00 | |||||||||||||
MIN | -40.00 | -30.00 | -19.00 | -6.00 | 8.00 | 24.00 | 27.00 | 28.00 | 14.00 | 2.00 | -11.00 | -20.00 | -40.00 | |||||||||||||
YRS | 13 | 15 | 15 | 14 | 14 | 14 | 15 | 15 | 15 | 17 | 14 | 15 | 7 |