YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
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 | 40.00 | 28.50 | 9.23 | 25.91 | i | |||
1963 | -7.23 | 2.57 | 21.90 | a | 35.70 | 44.87 | 58.07 | 60.10 | 56.42 | 50.17 | 44.68 | 24.60 | -0.87 | 32.58 | ||||||||||||
1964 | 6.61 | 8.69 | 8.81 | 33.17 | 47.68 | 53.63 | 59.97 | 52.71 | 45.80 | 35.84 | 22.27 | 1.16 | 31.36 | |||||||||||||
1965 | -6.58 | -2.39 | 5.71 | 33.31 | a | 46.13 | 53.77 | 58.52 | 55.42 | 41.23 | 37.61 | 19.40 | 14.48 | 29.72 | ||||||||||||
1966 | -11.23 | 1.50 | 22.81 | 28.07 | 39.45 | 52.79 | a | 61.65 | 54.65 | 46.83 | 33.68 | 15.80 | 4.23 | 29.18 | ||||||||||||
1967 | -0.55 | -6.43 | 18.39 | 31.33 | 38.42 | 52.67 | 54.65 | 51.61 | 45.33 | 32.13 | 19.10 | 7.32 | 28.66 | |||||||||||||
1968 | -2.32 | -0.71 | a | 21.13 | 31.67 | 39.81 | 52.27 | 55.42 | 56.77 | 48.23 | 38.06 | 25.27 | 5.26 | 30.90 | ||||||||||||
1969 | -5.87 | 7.96 | 7.65 | 35.53 | 46.23 | 48.23 | 58.42 | 58.52 | 48.07 | 33.65 | 22.80 | 8.74 | 30.83 | |||||||||||||
1970 | -7.94 | -0.18 | 12.03 | 30.70 | 43.37 | a | 56.67 | 57.97 | 56.06 | 46.07 | 35.10 | 19.87 | 1.55 | 29.27 | ||||||||||||
1971 | -9.03 | 2.71 | 17.58 | 30.50 | 39.55 | 56.53 | 52.39 | 52.52 | 45.73 | 36.48 | 19.87 | 1.29 | 28.84 | |||||||||||||
1972 | -9.84 | -6.86 | 12.42 | 28.50 | 47.32 | 51.80 | 54.26 | 55.10 | 42.03 | 29.39 | 18.97 | -4.52 | 26.55 | |||||||||||||
1973 | 0.87 | 5.43 | 25.74 | 27.97 | 39.35 | 50.50 | 54.00 | 56.10 | 42.80 | 38.58 | 18.73 | 1.83 | a | 30.16 | ||||||||||||
1974 | -6.52 | -0.54 | 13.87 | 31.80 | 40.77 | 51.10 | 59.87 | 50.55 | 37.30 | 32.84 | 20.30 | 11.94 | 28.61 | |||||||||||||
1975 | -0.58 | 0.11 | 8.42 | 28.27 | 36.67 | p | 61.72 | l | 62.42 | 58.29 | 46.27 | 39.97 | 23.47 | 8.29 | 27.49 | b | ||||||||||
1976 | -1.71 | 14.52 | 17.48 | 36.93 | 42.16 | 54.20 | 56.74 | 56.03 | 42.93 | 29.52 | 13.43 | -3.32 | 29.91 | |||||||||||||
1977 | -14.45 | 7.07 | 22.94 | 36.30 | 51.29 | 52.47 | 58.87 | 50.68 | 46.57 | 33.06 | 16.50 | -0.77 | 30.04 | |||||||||||||
1978 | -11.42 | -4.43 | 12.94 | 29.70 | 43.61 | 51.73 | 58.00 | 56.19 | 50.03 | 35.35 | ----- | z | 1.13 | 29.35 | a | |||||||||||
1979 | -10.90 | -6.61 | 13.77 | 28.83 | 39.29 | 51.40 | 58.06 | 54.81 | 46.87 | 32.37 | a | 18.53 | 13.84 | 28.36 | ||||||||||||
1980 | ----- | z | 2.62 | ----- | z | 33.70 | ----- | z | 52.40 | 56.16 | 54.29 | 46.37 | 33.19 | 25.33 | 6.87 | 34.55 | c | |||||||||
1981 | 2.97 | a | 10.75 | 22.42 | 35.23 | 44.26 | 53.73 | 58.52 | 57.29 | 47.83 | 36.16 | 26.87 | 3.74 | 33.31 | ||||||||||||
1982 | -14.55 | 2.61 | 17.13 | 29.50 | 48.03 | 47.73 | 59.42 | 56.19 | 45.97 | 37.90 | 19.55 | a | 17.07 | d | 30.55 | |||||||||||
1983 | 4.10 | j | 14.44 | j | 22.95 | i | 30.95 | i | 39.52 | j | 50.30 | j | 61.65 | k | 60.39 | h | 45.80 | j | 32.78 | m | 29.36 | p | -12.88 | o | ----- | z |
1984 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 59.58 | 59.40 | a | 42.28 | a | 39.59 | d | 20.50 | 2.07 | b | 37.24 | f | ||
1985 | -5.83 | a | -1.21 | 25.37 | a | 35.83 | 49.90 | 50.83 | 57.87 | 54.68 | 47.63 | 33.28 | f | 9.96 | c | -6.55 | b | 28.95 | a | |||||||
1986 | 2.36 | c | 3.13 | e | 19.29 | 33.41 | a | 44.97 | 57.47 | 61.50 | a | 53.93 | a | 48.07 | 35.87 | 14.34 | a | 11.43 | a | 32.15 | ||||||
1987 | 7.69 | b | 19.18 | 22.93 | a | 36.54 | b | 48.83 | b | 55.97 | a | 60.69 | e | 55.41 | b | 46.48 | a | 29.73 | a | 25.57 | 14.38 | b | 35.28 | |||
1988 | -5.45 | -4.39 | a | 19.45 | 30.27 | 49.42 | 59.79 | a | 60.52 | d | 57.00 | 46.79 | f | 31.26 | l | 21.74 | k | 11.30 | k | 33.33 | d | |||||
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 |
2001 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 32.57 | g | 15.24 | b | 15.24 | k |
2002 | 6.77 | e | 16.39 | e | 10.42 | g | 32.96 | d | 36.69 | r | 61.20 | j | 66.00 | i | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 18.71 | i |
2003 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2004 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2005 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2006 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2007 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2008 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2009 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2010 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2011 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | -4.36 | 2.86 | 16.96 | 32.23 | 44.31 | 53.29 | 58.22 | 55.22 | 45.70 | 35.45 | 20.40 | 5.58 | 30.33 | |||||||||||||
S.D. | 6.56 | 7.06 | 5.93 | 2.95 | 4.01 | 3.01 | 2.58 | 2.29 | 2.96 | 3.74 | 4.48 | 6.56 | 2.01 | |||||||||||||
SKEW | 0.32 | 0.68 | -0.33 | 0.09 | 0.04 | 0.31 | -0.54 | -0.43 | -1.00 | 0.32 | -0.28 | 0.07 | 0.63 | |||||||||||||
MAX | 7.69 | 19.18 | 25.74 | 36.93 | 51.29 | 59.79 | 62.42 | 59.40 | 50.17 | 44.68 | 28.50 | 17.07 | 35.28 | |||||||||||||
MIN | -14.55 | -6.86 | 5.71 | 27.97 | 38.42 | 47.73 | 52.39 | 50.55 | 37.30 | 29.39 | 9.96 | -6.55 | 26.55 | |||||||||||||
YRS | 24 | 25 | 23 | 25 | 22 | 23 | 25 | 25 | 24 | 24 | 24 | 26 | 19 |