YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1928 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1929 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1930 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1931 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1932 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1933 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1934 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1935 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1936 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1937 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1938 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1939 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1940 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1941 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1942 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1943 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1944 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1945 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1946 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1947 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | ----- | 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 | 42.00 | 46.00 | 40.00 | 25.00 | 17.00 | 9.00 | -15.00 | ----- | z | |||||||
1993 | -16.00 | a | -26.00 | -13.00 | a | 19.00 | 34.00 | 38.00 | 50.00 | 46.00 | 31.00 | a | 12.00 | -8.00 | a | -24.00 | -26.00 | d | ||||||||
1994 | -31.00 | -35.00 | 4.00 | 10.00 | 31.00 | a | 48.00 | a | 47.00 | 43.00 | 32.00 | 21.00 | 7.00 | -8.00 | -35.00 | b | ||||||||||
1995 | -13.00 | a | -14.00 | -17.00 | 9.00 | 35.00 | 39.00 | a | 41.00 | a | 46.00 | 26.00 | 24.00 | 2.00 | -12.00 | -17.00 | c | |||||||||
1996 | -27.00 | -33.00 | -17.00 | 19.00 | 28.00 | 40.00 | a | 49.00 | 48.00 | 35.00 | 14.00 | -13.00 | -21.00 | a | -33.00 | b | ||||||||||
1997 | -24.00 | -20.00 | -17.00 | a | 5.00 | 26.00 | a | 47.00 | 44.00 | 48.00 | 36.00 | 15.00 | a | -2.00 | -2.00 | -24.00 | c | |||||||||
1998 | -23.00 | a | -3.00 | -17.00 | 24.00 | 36.00 | 38.00 | 50.00 | 50.00 | 31.00 | 25.00 | 11.00 | -12.00 | -23.00 | a | |||||||||||
1999 | -24.00 | -0.00 | 6.00 | 25.00 | 36.00 | a | 46.00 | c | 50.00 | 50.00 | 34.00 | 19.00 | 18.00 | a | -12.00 | -24.00 | e | |||||||||
2000 | -8.00 | -3.00 | 10.00 | 18.00 | 35.00 | 41.00 | 46.00 | 47.00 | 28.00 | 17.00 | -1.00 | a | -21.00 | a | -21.00 | b | ||||||||||
2001 | -18.00 | -20.00 | -3.00 | 19.00 | 38.00 | 46.00 | 49.00 | 47.00 | 32.00 | 17.00 | 6.00 | -6.00 | -20.00 | |||||||||||||
2002 | -15.00 | -6.00 | -9.00 | 12.00 | 24.00 | 47.00 | 50.00 | 42.00 | 31.00 | 10.00 | a | 7.00 | -8.00 | -15.00 | a | |||||||||||
2003 | -25.00 | -14.00 | -13.00 | 16.00 | 31.00 | 41.00 | 52.00 | 43.00 | 27.00 | 19.00 | -6.00 | -6.00 | -25.00 | |||||||||||||
2004 | -25.00 | b | -14.00 | 3.00 | 15.00 | 28.00 | 42.00 | 46.00 | 40.00 | 33.00 | 22.00 | 13.00 | -12.00 | a | -25.00 | c | ||||||||||
2005 | -26.00 | b | -6.00 | 1.00 | 22.00 | 19.00 | 50.00 | 46.00 | 42.00 | 35.00 | 24.00 | 1.00 | -16.00 | -26.00 | b | |||||||||||
2006 | 7.00 | -13.00 | 6.00 | 22.00 | 33.00 | 46.00 | 48.00 | 51.00 | 29.00 | 15.00 | a | -1.00 | -9.00 | -13.00 | a | |||||||||||
2007 | -13.00 | a | -20.00 | -0.00 | d | 8.00 | 37.00 | 42.00 | 46.00 | a | 49.00 | 33.00 | 25.00 | a | -1.00 | -4.00 | -20.00 | g | ||||||||
2008 | -19.00 | -23.00 | -17.00 | 18.00 | a | 28.00 | 45.00 | 46.00 | a | 46.00 | 36.00 | 21.00 | 2.00 | -19.00 | -23.00 | b | ||||||||||
2009 | -33.00 | -15.00 | -12.00 | 17.00 | 31.00 | 41.00 | 48.00 | 41.00 | b | 33.00 | 17.00 | 19.00 | a | -16.00 | -33.00 | c | ||||||||||
2010 | -31.00 | -17.00 | 8.00 | 24.00 | 30.00 | 48.00 | 54.00 | 48.00 | 37.00 | 23.00 | -0.00 | -9.00 | -31.00 | |||||||||||||
2011 | -21.00 | -28.00 | -10.00 | 24.00 | 26.00 | 43.00 | 56.00 | 48.00 | 31.00 | 23.00 | -4.00 | -4.00 | -28.00 | |||||||||||||
2012 | ----- | z | -9.00 | 10.00 | 19.00 | 36.00 | 41.00 | 56.00 | 40.00 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | |||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | -20.26 | -15.95 | -4.85 | 17.25 | 31.10 | 43.38 | 48.57 | 45.48 | 31.75 | 19.00 | 2.95 | -11.80 | -24.59 | |||||||||||||
S.D. | 9.44 | 9.89 | 10.28 | 5.83 | 5.00 | 3.56 | 3.75 | 3.61 | 3.40 | 4.44 | 8.33 | 6.26 | 6.28 | |||||||||||||
SKEW | 1.20 | -0.25 | 0.10 | -0.57 | -0.62 | 0.16 | 0.39 | -0.25 | -0.41 | -0.31 | 0.25 | -0.33 | 0.10 | |||||||||||||
MAX | 7.00 | -0.00 | 10.00 | 25.00 | 38.00 | 50.00 | 56.00 | 51.00 | 37.00 | 25.00 | 19.00 | -2.00 | -13.00 | |||||||||||||
MIN | -33.00 | -35.00 | -17.00 | 5.00 | 19.00 | 38.00 | 41.00 | 40.00 | 25.00 | 10.00 | -13.00 | -24.00 | -35.00 | |||||||||||||
YRS | 19 | 20 | 20 | 20 | 20 | 21 | 21 | 21 | 20 | 20 | 20 | 20 | 17 |