YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1948 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 65.40 | a | 66.77 | 65.35 | m | ----- | z | ----- | z | ----- | z | 66.09 | ||
1949 | 48.71 | 48.75 | 55.16 | 57.90 | 60.71 | 64.10 | 64.90 | 66.71 | 65.55 | a | 61.55 | 62.97 | 52.39 | 59.12 | ||||||||||||
1950 | 46.48 | 54.64 | 53.65 | 57.03 | 59.48 | 62.82 | b | 68.28 | b | 67.42 | 64.87 | 61.77 | a | 60.80 | 57.65 | 59.57 | ||||||||||
1951 | 52.16 | 54.00 | 52.55 | 57.40 | 60.10 | 63.83 | 64.90 | 67.60 | a | 62.33 | 63.65 | 60.93 | 51.74 | 59.27 | ||||||||||||
1952 | 49.26 | 53.69 | 52.32 | 57.07 | 60.35 | 61.43 | 66.23 | 64.55 | 64.83 | 60.26 | 57.13 | 51.94 | 58.25 | |||||||||||||
1953 | 54.94 | 54.04 | 52.94 | 56.07 | 60.90 | 61.07 | 66.39 | 66.68 | 67.67 | 63.65 | 58.73 | 54.61 | 59.81 | |||||||||||||
1954 | 51.55 | 54.93 | 55.16 | 57.47 | 59.26 | 61.47 | 64.81 | 65.84 | 66.47 | 64.32 | 58.97 | 55.23 | 59.62 | |||||||||||||
1955 | 51.77 | 51.43 | 53.19 | 52.83 | 58.23 | 62.66 | a | 63.81 | 63.13 | h | 65.86 | a | 60.45 | i | 55.80 | 53.94 | 56.95 | |||||||||
1956 | 53.39 | 50.66 | 53.52 | 56.64 | b | 59.67 | d | 63.04 | c | 66.27 | a | 67.68 | 65.07 | c | 60.90 | 56.46 | b | 53.69 | b | 58.92 | ||||||
1957 | 49.32 | 54.23 | b | 54.89 | c | 59.15 | c | 62.07 | b | 66.81 | c | 67.37 | a | 68.13 | a | 69.67 | 64.68 | c | 58.15 | c | 55.44 | d | 60.83 | |||
1958 | 57.14 | c | 59.36 | f | 55.52 | 59.80 | 62.97 | 67.23 | 69.32 | 71.06 | 70.61 | b | 63.37 | a | 58.11 | c | 58.92 | f | 63.51 | |||||||
1959 | 54.87 | 54.64 | 56.81 | 60.11 | b | 60.50 | a | 64.63 | c | 66.03 | a | 67.87 | a | 64.57 | b | 63.50 | e | 59.04 | e | 55.23 | i | 61.14 | ||||
1960 | 53.58 | 54.79 | 55.07 | a | 57.28 | a | 58.71 | 66.61 | b | 64.70 | a | 66.34 | b | 63.56 | c | 62.16 | f | 57.29 | b | 55.72 | b | 59.42 | ||||
1961 | 56.84 | 55.12 | b | 55.23 | a | 56.63 | 58.29 | c | 65.87 | g | 66.00 | a | 67.50 | c | 65.65 | d | 61.19 | e | 54.87 | 51.81 | 59.01 | |||||
1962 | 53.60 | a | 53.14 | 53.07 | a | 57.82 | b | 58.90 | 62.43 | 66.10 | 66.70 | a | 65.90 | 63.44 | d | 57.43 | b | 57.43 | h | 59.87 | ||||||
1963 | 53.00 | d | 60.36 | 55.18 | c | 55.30 | 59.90 | 64.50 | 66.52 | 66.52 | 67.36 | b | 63.52 | 57.10 | a | 56.67 | a | 60.49 | ||||||||
1964 | 53.23 | 59.48 | 53.87 | 56.97 | 59.32 | 63.97 | 67.65 | 67.45 | 67.73 | 62.94 | 57.30 | 53.48 | 60.28 | |||||||||||||
1965 | 52.97 | 55.29 | 58.61 | 58.79 | b | 60.74 | 64.47 | 67.10 | a | 69.32 | 67.13 | 65.08 | e | 60.14 | a | 53.75 | c | 61.12 | ||||||||
1966 | 53.55 | 54.36 | 54.81 | 60.53 | 62.19 | 67.86 | a | 68.61 | 70.67 | a | 70.75 | b | 63.83 | b | 59.10 | 56.11 | d | 61.86 | ||||||||
1967 | 54.21 | g | 56.57 | g | 55.00 | h | 55.90 | j | 62.74 | h | 67.32 | e | 69.93 | a | 69.42 | 70.64 | b | 65.83 | g | 61.60 | 54.16 | 65.51 | ||||
1968 | 55.39 | 58.79 | 58.39 | 58.67 | 61.45 | 67.31 | a | 68.10 | 68.68 | 70.04 | f | 63.67 | g | 59.95 | j | 53.42 | l | 62.10 | ||||||||
1969 | 48.67 | d | 51.65 | b | 58.74 | 57.72 | a | 62.67 | a | 65.87 | 69.06 | 70.55 | 68.67 | c | 65.14 | i | 61.92 | f | 57.26 | 61.09 | ||||||
1970 | 56.94 | 59.64 | 58.39 | 57.60 | 64.07 | b | 64.86 | b | 68.39 | 67.23 | 69.60 | 62.32 | 60.26 | k | 54.65 | 62.15 | ||||||||||
1971 | 52.83 | a | 54.14 | 53.84 | 55.53 | 58.94 | 61.60 | 66.13 | 70.55 | 69.83 | 62.54 | c | 57.31 | a | 50.87 | 59.51 | ||||||||||
1972 | 51.50 | a | 53.34 | 56.00 | a | 56.66 | a | 61.19 | 66.13 | 68.52 | 69.26 | 65.40 | e | 67.10 | 58.04 | e | 50.30 | h | 61.19 | |||||||
1973 | 53.57 | a | 59.08 | c | 54.48 | 60.03 | 62.42 | 65.67 | 68.78 | h | 67.44 | d | 69.50 | 63.23 | 54.86 | a | 55.84 | f | 61.03 | |||||||
1974 | 54.32 | 54.10 | g | 55.90 | k | 58.59 | h | 60.91 | i | 63.78 | c | 66.77 | 68.11 | c | 68.64 | e | 66.42 | e | 56.12 | f | 55.12 | g | 64.67 | |||
1975 | 54.62 | e | 56.48 | g | 54.52 | d | 55.00 | g | 62.22 | d | 65.95 | j | 67.91 | h | 67.89 | m | 66.54 | d | 64.23 | a | 57.48 | c | 56.48 | f | 59.93 | |
1976 | 55.06 | m | 52.74 | j | 54.41 | i | 56.36 | h | 62.19 | d | 65.00 | g | 68.67 | d | 68.52 | 68.93 | 65.76 | b | 61.95 | j | 58.79 | l | 66.81 | |||
1977 | 58.62 | j | 57.69 | b | 54.14 | b | 57.00 | a | 59.42 | 67.12 | d | 67.32 | 65.13 | 65.87 | 62.26 | 56.23 | 55.97 | 60.74 | ||||||||
1978 | 57.30 | d | 55.64 | f | 59.46 | c | 57.47 | 61.48 | d | 64.50 | b | 66.93 | a | 68.42 | 68.20 | 67.17 | g | 56.56 | e | 52.87 | a | 61.32 | ||||
1979 | 54.00 | 52.96 | 56.77 | 57.97 | 62.70 | a | 64.73 | 70.04 | d | 69.22 | d | 71.34 | a | 65.97 | 62.04 | c | 60.07 | c | 62.32 | |||||||
1980 | 56.11 | c | 59.33 | b | 57.19 | 61.53 | 61.59 | b | 62.38 | d | 69.66 | b | 69.15 | d | 66.80 | 64.03 | a | 57.40 | 55.74 | 61.74 | ||||||
1981 | 57.90 | 57.39 | 56.03 | 58.50 | 61.81 | 66.50 | 67.80 | a | 67.58 | 68.03 | 63.58 | 59.43 | 55.84 | 61.70 | ||||||||||||
1982 | 52.81 | 54.39 | 54.48 | 57.30 | 62.39 | 63.00 | 64.90 | a | 67.29 | 69.33 | 64.68 | 56.87 | 53.26 | 60.06 | ||||||||||||
1983 | 56.45 | 56.29 | 55.84 | 57.43 | 59.74 | 64.20 | 66.68 | 68.06 | 68.43 | 63.23 | 55.70 | 51.77 | 60.32 | |||||||||||||
1984 | 56.81 | 55.14 | 57.61 | 56.93 | 60.45 | 63.07 | 69.00 | 71.26 | 68.80 | 59.94 | 55.80 | 54.35 | 60.76 | |||||||||||||
1985 | 57.13 | 55.50 | 54.81 | 58.83 | 61.26 | 67.23 | 68.10 | 66.35 | 65.60 | 63.03 | 52.83 | 54.84 | 60.46 | |||||||||||||
1986 | 57.58 | 55.93 | 59.39 | 57.43 | 61.10 | 65.70 | 67.84 | 67.13 | 63.60 | 62.06 | 59.10 | 55.74 | 61.05 | |||||||||||||
1987 | 54.58 | 56.21 | 57.84 | 60.00 | b | 62.86 | c | 65.57 | b | 65.77 | 69.45 | 65.23 | 66.52 | 60.20 | 54.48 | 61.56 | ||||||||||
1988 | 55.26 | 57.07 | 57.16 | 58.77 | 61.29 | 65.34 | a | 71.32 | 68.10 | a | 68.03 | 64.00 | 56.90 | 55.90 | 61.60 | |||||||||||
1989 | 52.68 | 50.96 | 54.65 | 61.43 | 61.58 | 66.67 | 66.32 | 68.65 | 63.77 | 62.90 | 59.23 | 56.16 | 60.42 | |||||||||||||
1990 | 53.71 | 52.57 | 56.52 | 58.10 | 60.87 | 65.37 | 68.52 | 68.48 | 68.63 | 64.97 | 57.77 | 49.97 | a | 60.46 | ||||||||||||
1991 | 54.52 | 60.18 | ----- | z | 57.57 | 58.39 | 63.10 | 69.10 | 66.65 | 71.63 | 67.87 | 57.70 | 54.52 | j | 62.67 | |||||||||||
1992 | 56.76 | j | 60.63 | j | 60.14 | i | 61.73 | h | 64.58 | l | 65.93 | 69.00 | i | 69.50 | k | 67.80 | j | 65.14 | i | 58.33 | l | 53.11 | l | 65.93 | ||
1993 | 52.79 | l | 55.69 | l | 57.59 | i | 57.77 | 62.15 | k | 66.93 | 67.29 | j | 68.77 | 64.33 | i | 69.12 | o | 59.10 | j | 55.84 | l | 64.49 | ||||
1994 | 57.21 | l | 53.78 | j | 58.77 | 57.70 | j | 61.81 | j | 64.71 | i | 68.95 | l | 70.19 | 68.58 | k | 61.75 | k | 52.53 | 51.84 | l | 60.50 | ||||
1995 | 55.20 | k | 56.56 | j | 57.36 | i | 57.26 | k | 60.19 | 62.93 | 67.65 | 69.48 | 65.60 | 63.38 | j | 57.73 | 57.00 | p | 63.93 | |||||||
1996 | 54.48 | 56.48 | 58.90 | 59.53 | 60.71 | 65.43 | 67.45 | 67.10 | 71.89 | u | 63.52 | 57.60 | j | 54.84 | 60.84 | |||||||||||
1997 | 56.16 | 56.84 | i | 57.73 | i | 58.90 | i | 66.65 | 67.00 | 71.74 | 70.29 | 70.37 | 63.39 | 59.60 | 56.97 | 64.68 | ||||||||||
1998 | 56.13 | 55.21 | 58.42 | 59.27 | 62.23 | 65.33 | 68.06 | 70.45 | 71.07 | 64.94 | 56.00 | 52.03 | 61.59 | |||||||||||||
1999 | 53.84 | 52.96 | 55.10 | 58.70 | 60.52 | 63.93 | 63.77 | 67.10 | 69.63 | 63.71 | 59.40 | 53.61 | 60.19 | |||||||||||||
2000 | 53.35 | 56.90 | 57.19 | 61.93 | 62.29 | 68.30 | 67.06 | 68.55 | 70.93 | 62.94 | 55.67 | 54.77 | 61.66 | |||||||||||||
2001 | 56.13 | 55.64 | 59.58 | 58.27 | 67.35 | 65.33 | 68.74 | 67.00 | 68.47 | 64.87 | 58.03 | 54.35 | 61.98 | |||||||||||||
2002 | 53.35 | 56.79 | 56.61 | 59.60 | 63.52 | 64.97 | 70.42 | 70.48 | 70.57 | 63.35 | 61.70 | 55.77 | 62.26 | |||||||||||||
2003 | 57.84 | 57.14 | 57.90 | 57.57 | 63.61 | 70.00 | 67.90 | 67.65 | 69.47 | 67.35 | 56.10 | ----- | z | 62.96 | ||||||||||||
2004 | 53.77 | 56.31 | 60.35 | 64.17 | 67.21 | g | 68.87 | 74.33 | a | 73.77 | 70.10 | 63.68 | 57.70 | 55.29 | 63.49 | |||||||||||
2005 | 55.26 | 59.71 | 60.19 | 59.93 | 64.97 | 67.30 | 73.55 | 71.61 | 69.57 | 63.90 | 56.43 | 53.90 | 63.03 | |||||||||||||
2006 | ----- | z | ----- | z | 53.61 | 57.43 | 63.33 | m | 65.80 | j | 69.75 | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 55.52 | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 54.03 | 55.41 | 56.09 | 58.23 | 61.30 | 65.06 | 67.66 | 68.33 | 67.74 | 63.74 | 57.84 | 54.51 | 60.70 | |||||||||||||
S.D. | 2.54 | 2.68 | 2.19 | 1.86 | 1.94 | 2.04 | 2.18 | 1.75 | 2.37 | 1.72 | 2.17 | 1.98 | 1.14 | |||||||||||||
SKEW | -0.78 | -0.08 | 0.22 | 0.45 | 0.87 | 0.05 | 0.78 | 0.48 | -0.28 | 0.26 | 0.07 | 0.07 | -0.20 | |||||||||||||
MAX | 57.90 | 60.36 | 60.35 | 64.17 | 67.35 | 70.00 | 74.33 | 73.77 | 71.63 | 67.87 | 62.97 | 60.07 | 63.03 | |||||||||||||
MIN | 46.48 | 48.75 | 52.32 | 52.83 | 58.23 | 61.07 | 63.77 | 64.55 | 62.33 | 59.94 | 52.53 | 49.97 | 58.25 | |||||||||||||
NO YRS | 50 | 46 | 50 | 50 | 51 | 53 | 53 | 55 | 52 | 47 | 49 | 42 | 31 |