YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
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 | 55.59 | b | 49.43 | b | 43.44 | d | 31.96 | d | 31.04 | e | 42.29 | g |
1986 | 32.50 | c | 33.27 | f | 38.41 | b | 39.92 | e | 46.85 | e | 54.44 | c | 57.65 | e | 62.04 | f | 47.54 | f | 41.31 | e | 34.76 | i | 29.17 | g | 44.44 | e |
1987 | 25.50 | i | 33.35 | h | 31.25 | g | 42.20 | e | 51.95 | l | 57.78 | g | 56.20 | k | 59.53 | l | 56.14 | h | 47.12 | g | 34.83 | g | 25.92 | g | 42.20 | k |
1988 | 27.00 | e | 32.75 | a | 31.79 | c | 40.62 | f | 46.90 | b | 54.76 | a | 62.71 | 60.37 | d | 50.36 | e | 48.38 | g | 31.52 | e | 30.40 | k | 44.24 | c | |
1989 | 25.89 | c | 26.84 | c | 35.71 | c | 46.76 | a | 48.23 | a | 56.47 | 62.55 | 58.81 | e | 49.68 | h | 41.96 | c | 35.29 | b | 29.34 | b | 42.53 | a | ||
1990 | 26.55 | 29.57 | 36.58 | 42.50 | 45.71 | 54.26 | c | 62.84 | 58.97 | a | 55.24 | a | 41.97 | b | 34.69 | a | 20.35 | 42.44 | ||||||||
1991 | 26.97 | 34.04 | 31.16 | 36.93 | 44.43 | a | 50.73 | 61.60 | a | 60.26 | 57.70 | c | 47.87 | 34.30 | 30.00 | 43.00 | ||||||||||
1992 | 29.13 | 35.45 | 38.03 | 42.00 | 50.15 | d | 53.55 | a | 59.18 | c | 62.00 | c | 51.92 | d | 46.55 | 32.59 | a | 26.65 | 43.93 | |||||||
1993 | 30.61 | 31.68 | 38.77 | 39.64 | b | 46.16 | 52.83 | 54.06 | 56.76 | f | 50.14 | b | 42.87 | a | 30.70 | 26.63 | a | 40.37 | a | |||||||
1994 | 29.04 | c | 28.64 | 38.13 | 40.32 | b | 47.03 | a | 56.50 | b | 61.17 | a | 61.81 | 53.72 | e | 39.81 | e | 27.24 | a | 29.26 | 42.72 | |||||
1995 | 30.07 | a | 35.21 | 36.06 | 37.60 | 44.36 | c | 52.52 | a | 57.36 | c | 60.00 | d | 52.76 | a | 41.03 | a | 35.50 | 29.26 | 42.64 | ||||||
1996 | 26.26 | 35.17 | 33.63 | a | 39.67 | 46.61 | 52.70 | 63.39 | 59.29 | 51.80 | 40.81 | 36.17 | 28.00 | 42.79 | ||||||||||||
1997 | 27.06 | 30.29 | 32.77 | 36.67 | 49.37 | a | 53.17 | 58.75 | c | 60.33 | a | 57.67 | 40.00 | 34.23 | 28.37 | a | 42.39 | |||||||||
1998 | 27.58 | 30.39 | 34.71 | 37.43 | 41.59 | b | 48.00 | f | 60.37 | a | 61.61 | c | 54.80 | 41.19 | 31.86 | a | 25.73 | a | 40.66 | a | ||||||
1999 | 28.67 | a | 30.31 | b | 31.68 | 36.47 | 43.27 | a | 48.31 | a | 60.19 | 57.93 | a | 52.48 | a | 40.26 | 34.30 | 27.48 | b | 40.95 | ||||||
2000 | ----- | z | 32.46 | c | 34.19 | 40.11 | c | 47.73 | e | 54.33 | 54.38 | b | 60.46 | e | 50.48 | e | 44.22 | d | 27.50 | f | 28.45 | b | 44.68 | b | ||
2001 | 28.61 | c | 28.30 | a | 36.68 | 38.60 | 50.71 | 50.57 | b | 58.10 | a | 61.52 | 54.67 | 43.07 | a | 36.10 | a | 24.57 | a | 42.62 | ||||||
2002 | 25.26 | 27.85 | a | 31.16 | 43.67 | 43.20 | a | 58.34 | a | 67.08 | r | 56.32 | l | 53.96 | c | 44.58 | l | 34.86 | b | 26.74 | 38.34 | c | ||||
2003 | 33.81 | 31.93 | 35.03 | 39.13 | 48.03 | 56.52 | e | 63.50 | c | 63.58 | e | 56.37 | 47.10 | 32.50 | 29.13 | 44.72 | ||||||||||
2004 | 26.52 | 30.17 | 40.42 | 41.47 | 45.43 | a | 54.66 | a | 61.70 | a | 59.26 | 50.00 | 45.96 | d | 34.10 | a | 30.31 | b | 43.33 | |||||||
2005 | 34.64 | c | 35.15 | a | 35.18 | c | 37.56 | c | 49.54 | e | 53.57 | b | 62.62 | b | 62.10 | a | 53.40 | 48.87 | 37.10 | 28.87 | 44.88 | |||||
2006 | 28.48 | 32.00 | 31.94 | 40.30 | 52.58 | 59.93 | a | 69.59 | b | 62.33 | d | 54.73 | d | 45.65 | h | 35.19 | i | 29.32 | c | 46.12 | b | |||||
2007 | 26.45 | 31.11 | 39.74 | 44.93 | 50.24 | b | 56.15 | c | 66.90 | b | 62.58 | e | 56.90 | a | 42.42 | g | 38.50 | j | 26.30 | d | 46.13 | b | ||||
2008 | ----- | z | 32.21 | a | 34.70 | a | 40.00 | a | 46.14 | c | 54.59 | c | 65.00 | a | 62.13 | 55.17 | 45.43 | a | 40.43 | ----- | z | 47.58 | b | |||
2009 | 32.61 | 31.82 | 33.42 | 38.87 | 55.44 | d | 55.69 | a | 64.83 | a | 59.39 | 57.40 | 42.42 | 35.93 | 26.58 | 44.53 | ||||||||||
2010 | 30.97 | 33.81 | a | 35.90 | 37.45 | j | 44.28 | b | 55.90 | 66.10 | a | 59.93 | b | 52.66 | a | 48.00 | 32.93 | a | 33.23 | a | 44.88 | a | ||||
2011 | 28.69 | b | 25.11 | a | 33.45 | 37.50 | 44.17 | a | 50.31 | a | 61.58 | 59.29 | c | 54.38 | a | 43.14 | c | 29.12 | e | 30.32 | 41.42 | |||||
2012 | 28.71 | c | 30.17 | e | 30.97 | 41.18 | b | 51.18 | t | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 34.23 | h | 33.38 | r | 32.76 | h | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 28.84 | 31.30 | 35.01 | 40.06 | 47.13 | 54.20 | 61.50 | 60.41 | 53.67 | 43.51 | 33.79 | 28.08 | 43.03 | |||||||||||||
S.D. | 2.57 | 2.71 | 2.78 | 2.61 | 3.19 | 2.63 | 3.72 | 1.79 | 2.53 | 2.82 | 2.84 | 2.58 | 1.16 | |||||||||||||
SKEW | 0.77 | -0.28 | 0.24 | 0.75 | 0.63 | -0.13 | -0.08 | -0.58 | -0.02 | 0.49 | -0.14 | -0.91 | 0.08 | |||||||||||||
MAX | 34.64 | 35.45 | 40.42 | 46.76 | 55.44 | 59.93 | 69.59 | 63.58 | 57.70 | 48.87 | 40.43 | 33.23 | 44.88 | |||||||||||||
MIN | 25.26 | 25.11 | 30.97 | 36.47 | 41.59 | 48.31 | 54.06 | 55.59 | 49.43 | 39.81 | 27.24 | 20.35 | 40.95 | |||||||||||||
YRS | 24 | 25 | 26 | 25 | 25 | 24 | 24 | 23 | 24 | 22 | 22 | 23 | 14 |