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 | ----- | 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 | 20.00 | 20.00 | ----- | z | ||
1994 | 24.00 | 22.00 | 30.00 | b | 32.00 | a | 33.00 | a | 34.00 | 41.00 | b | 38.00 | 36.00 | 26.00 | s | 19.00 | a | 18.00 | ----- | z | ||||||
1995 | 26.00 | 23.00 | 28.00 | 31.00 | a | 34.00 | 35.00 | 40.00 | 37.00 | 37.00 | 29.00 | 28.00 | 28.00 | 23.00 | a | |||||||||||
1996 | 26.00 | c | 25.00 | a | 29.00 | a | 32.00 | 33.00 | 39.00 | c | 38.00 | a | ----- | z | ----- | z | 26.00 | 27.00 | 24.00 | ----- | z | |||||
1997 | 22.00 | a | 26.00 | f | 25.00 | 29.00 | 33.00 | a | 31.00 | a | 38.00 | a | 46.00 | ----- | z | ----- | z | 30.00 | c | 21.00 | ----- | z | ||||
1998 | 25.00 | 31.00 | e | 28.00 | a | ----- | z | ----- | z | ----- | z | ----- | z | 44.00 | 39.00 | d | 32.00 | 30.00 | f | 16.00 | b | ----- | z | |||
1999 | 24.00 | 26.00 | j | 27.00 | b | 29.00 | 32.00 | b | 35.00 | b | 40.00 | 41.00 | a | ----- | z | 34.00 | a | ----- | z | 25.00 | c | ----- | z | |||
2000 | ----- | z | ----- | z | ----- | z | 32.00 | 33.00 | b | 39.00 | a | 40.00 | 41.00 | 38.00 | c | 35.00 | b | 23.00 | a | 26.00 | ----- | z | ||||
2001 | 22.00 | a | 23.00 | a | 29.00 | e | 29.00 | c | 37.00 | c | 39.00 | d | 43.00 | b | 43.00 | a | 39.00 | 34.00 | b | 28.00 | b | 27.00 | a | 22.00 | y | |
2002 | 21.00 | a | 25.00 | d | 27.00 | b | 30.00 | d | 33.00 | a | 37.00 | d | 43.00 | 41.00 | b | 38.00 | b | 28.00 | a | 29.00 | b | 26.00 | d | ----- | z | |
2003 | 31.00 | c | 25.00 | c | 28.00 | b | 32.00 | 33.00 | c | 37.00 | a | 41.00 | b | 44.00 | a | 41.00 | b | 35.00 | 21.00 | e | 24.00 | c | 21.00 | y | ||
2004 | 22.00 | e | 27.00 | d | 31.00 | b | 32.00 | a | 35.00 | d | 39.00 | c | 43.00 | g | 44.00 | a | 37.00 | a | 34.00 | c | 21.00 | f | 21.00 | c | ----- | z |
2005 | 25.00 | d | 30.00 | c | 31.00 | e | 31.00 | f | 36.00 | d | 37.00 | i | 45.00 | s | 44.00 | b | 37.00 | c | 34.00 | c | 23.00 | d | 25.00 | c | ----- | z |
2006 | 27.00 | d | 23.00 | d | 28.00 | f | 32.00 | c | 36.00 | g | 41.00 | a | 41.00 | 38.00 | b | 37.00 | d | 40.00 | r | ----- | z | 21.00 | f | ----- | z | |
2007 | 14.00 | f | 27.00 | g | 28.00 | h | 31.00 | h | 35.00 | e | 37.00 | a | 41.00 | d | 41.00 | d | 35.00 | d | 31.00 | l | 26.00 | j | 22.00 | i | ----- | z |
2008 | 25.00 | i | 26.00 | h | 26.00 | d | 29.00 | h | 33.00 | b | 36.00 | b | 41.00 | c | 42.00 | c | 40.00 | c | 27.00 | k | 31.00 | g | 24.00 | g | ----- | z |
2009 | 23.00 | g | 27.00 | e | 25.00 | e | 28.00 | f | 35.00 | e | 41.00 | b | 39.00 | h | 37.00 | f | 36.00 | e | ----- | z | ----- | z | 19.00 | f | ----- | z |
2010 | 30.00 | e | 29.00 | e | 28.00 | c | 31.00 | d | 34.00 | f | 33.00 | b | 40.00 | 39.00 | c | 38.00 | e | ----- | z | ----- | z | ----- | z | ----- | z | |
2011 | ----- | z | ----- | z | 31.00 | i | 28.00 | c | 33.00 | e | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 25.00 | 25.83 | 28.00 | 30.69 | 33.87 | 36.87 | 40.54 | 41.53 | 37.71 | 32.10 | 24.80 | 23.15 | 23.00 | |||||||||||||
S.D. | 3.06 | 2.98 | 1.92 | 1.49 | 1.41 | 2.90 | 1.51 | 2.67 | 1.64 | 3.25 | 4.05 | 3.65 | 0.0 | |||||||||||||
SKEW | 0.62 | 0.43 | 0.00 | -0.54 | 0.88 | -0.35 | -0.08 | -0.18 | 0.37 | -0.85 | -0.14 | -0.58 | 0.00 | |||||||||||||
MAX | 31.00 | 31.00 | 31.00 | 32.00 | 37.00 | 41.00 | 43.00 | 46.00 | 41.00 | 35.00 | 30.00 | 28.00 | 23.00 | |||||||||||||
MIN | 21.00 | 22.00 | 25.00 | 28.00 | 32.00 | 31.00 | 38.00 | 37.00 | 35.00 | 26.00 | 19.00 | 16.00 | 23.00 | |||||||||||||
YRS | 13 | 12 | 14 | 13 | 15 | 15 | 13 | 15 | 14 | 10 | 10 | 13 | 1 |