YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1948 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 65.57 | 64.55 | 65.77 | 65.80 | 60.77 | 49.97 | a | 44.23 | 59.52 | e | ||||||
1949 | 40.58 | 45.50 | 52.71 | 55.80 | 60.14 | b | 60.88 | f | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 50.95 | g | ||||
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 | 61.50 | 66.68 | 67.45 | 68.67 | 63.74 | 54.73 | 50.37 | a | 61.88 | e | ||||||
1954 | 44.68 | 52.25 | 52.35 | 53.30 | 60.97 | a | 60.91 | h | 63.83 | a | 65.03 | 66.57 | 62.65 | 56.03 | 49.84 | 57.05 | a | |||||||||
1955 | 47.06 | 47.82 | 47.37 | a | 52.40 | 55.90 | 60.32 | b | 62.45 | 65.16 | 66.07 | 59.71 | 48.28 | a | 47.04 | d | 54.96 | |||||||||
1956 | 46.43 | c | 44.43 | a | 49.30 | a | 56.93 | b | 61.97 | a | 61.90 | 66.52 | b | 66.77 | 67.00 | 58.58 | 55.53 | 48.81 | 57.01 | |||||||
1957 | 42.42 | 49.57 | 52.68 | 56.17 | 61.06 | 65.20 | 66.42 | 68.61 | 72.23 | 61.87 | 55.70 | 51.86 | c | 58.65 | ||||||||||||
1958 | 53.42 | e | 54.68 | 54.42 | 58.60 | 63.17 | a | 66.33 | c | 69.20 | a | 70.35 | 67.03 | 63.42 | 54.67 | 52.57 | a | 60.66 | ||||||||
1959 | 48.30 | a | 49.19 | a | 52.35 | 57.53 | 61.27 | a | 64.59 | a | 67.43 | a | 65.97 | 63.83 | 61.23 | 57.10 | 50.61 | 58.28 | ||||||||
1960 | 46.42 | 50.04 | a | 52.74 | 57.23 | 58.93 | a | 62.14 | a | 65.27 | a | 66.10 | a | 67.47 | 60.43 | a | 53.60 | 50.27 | a | 57.55 | ||||||
1961 | 52.68 | 50.86 | 51.63 | a | 53.60 | 59.07 | a | 64.90 | a | 66.66 | b | 66.31 | b | 64.63 | 59.14 | b | 51.43 | 47.71 | 57.38 | |||||||
1962 | 47.10 | 51.04 | 51.26 | 56.70 | 57.19 | 61.33 | 64.00 | 67.00 | 68.27 | 60.94 | 55.50 | 50.97 | 57.61 | |||||||||||||
1963 | 44.97 | 58.82 | 52.32 | 55.87 | 61.57 | a | 61.67 | 66.68 | 66.74 | 70.63 | 61.84 | 53.50 | 51.16 | 58.81 | ||||||||||||
1964 | 48.90 | 50.45 | 51.52 | 53.17 | 57.65 | 62.13 | 64.61 | 67.06 | 65.37 | 63.65 | 50.68 | b | 44.26 | 56.62 | ||||||||||||
1965 | 48.61 | 49.07 | 57.52 | 55.97 | 56.35 | 61.20 | 66.23 | 67.84 | 64.93 | 62.67 | a | 54.87 | 46.97 | a | 57.68 | |||||||||||
1966 | 48.48 | 50.07 | 51.84 | 56.31 | a | 59.00 | 62.71 | b | 64.52 | 66.60 | a | 67.73 | 59.68 | 53.60 | 49.71 | 57.52 | ||||||||||
1967 | 48.61 | 50.93 | 49.90 | 53.53 | 59.61 | 63.63 | 66.33 | a | 68.93 | a | 70.80 | 60.68 | 55.30 | 46.03 | 57.86 | |||||||||||
1968 | 47.81 | 57.79 | 53.97 | 54.07 | 60.65 | 63.27 | 66.97 | a | 67.13 | 67.10 | 58.63 | a | 53.63 | 45.37 | a | 58.03 | ||||||||||
1969 | 40.47 | a | 48.07 | 55.10 | 54.73 | 61.69 | b | 65.27 | 64.19 | 66.48 | 63.80 | 60.74 | 55.53 | 50.68 | 57.23 | |||||||||||
1970 | 47.77 | 57.00 | ----- | z | 52.93 | 59.90 | a | 62.90 | a | 63.50 | a | 63.06 | o | 64.65 | g | 57.22 | m | 52.85 | d | 46.07 | a | 55.36 | d | |||
1971 | 44.66 | b | 48.41 | a | 49.16 | 56.07 | c | 58.52 | b | 60.61 | b | 63.83 | a | 67.96 | d | 66.50 | 58.23 | 50.71 | b | 44.48 | b | 55.76 | ||||
1972 | 43.52 | b | 48.38 | 50.52 | 51.50 | 59.07 | a | 62.67 | 67.11 | c | 67.90 | a | 63.47 | 61.32 | ----- | z | ----- | z | 57.54 | b | ||||||
1973 | ----- | z | 53.60 | c | 51.74 | 56.43 | 59.07 | a | 61.40 | 63.71 | 62.58 | 65.67 | 59.03 | ----- | z | ----- | z | 59.25 | c | |||||||
1974 | ----- | z | 48.04 | 50.90 | 55.17 | 56.94 | 61.55 | h | 65.27 | p | 65.97 | 72.30 | 61.87 | 54.07 | ----- | z | 58.16 | d | ||||||||
1975 | ----- | z | 49.35 | b | 50.61 | 52.23 | 57.13 | a | 61.10 | 64.81 | 64.23 | 69.70 | 57.65 | 50.94 | m | 48.58 | 57.54 | b | ||||||||
1976 | 49.67 | a | 50.04 | e | 48.77 | 54.73 | 58.30 | a | 60.21 | a | 65.13 | 64.81 | 67.20 | 62.45 | b | 56.68 | b | 52.04 | f | 58.00 | a | |||||
1977 | 50.06 | 54.64 | 50.16 | 55.93 | 57.74 | 62.10 | 64.80 | a | 69.61 | h | 64.50 | 61.06 | 51.70 | 49.00 | 56.52 | a | ||||||||||
1978 | 50.10 | b | 51.26 | a | 54.60 | a | 56.73 | 59.19 | 67.07 | 65.83 | b | 65.05 | k | 63.40 | 64.77 | 49.73 | h | 45.23 | a | 57.82 | b | |||||
1979 | 43.88 | n | 46.79 | i | 56.27 | a | 57.19 | c | 61.19 | j | 62.77 | 65.87 | a | 69.10 | b | 71.03 | 62.81 | 55.67 | f | 52.94 | n | 63.58 | e | |||
1980 | 47.48 | h | 51.89 | a | 51.65 | 59.03 | 58.47 | a | 63.17 | g | 67.31 | e | 62.92 | f | 64.07 | 61.74 | 54.52 | a | 48.33 | j | 58.58 | d | ||||
1981 | 56.42 | 52.32 | 56.26 | 55.27 | 60.06 | ----- | z | 63.71 | ----- | z | ----- | z | 58.71 | ----- | z | ----- | z | 57.54 | e | |||||||
1982 | ----- | z | ----- | z | ----- | z | 59.00 | u | 59.04 | c | 60.69 | a | 64.65 | e | 66.07 | b | 68.20 | 61.97 | 52.21 | a | 48.42 | 60.16 | d | |||
1983 | 51.16 | 54.07 | 56.19 | 59.59 | a | 62.30 | a | 63.86 | a | 67.93 | b | 68.79 | b | 66.40 | 59.94 | 53.93 | 43.17 | a | 58.94 | |||||||
1984 | 49.26 | 52.24 | 56.13 | 55.60 | 59.00 | a | 61.10 | 65.10 | 68.47 | a | 67.19 | d | 57.65 | 52.17 | 45.77 | 57.47 | ||||||||||
1985 | 48.74 | 47.57 | 51.68 | 55.81 | d | 61.96 | g | 63.79 | b | 67.52 | 69.03 | 65.79 | a | 59.45 | 45.53 | 48.19 | 56.65 | a | ||||||||
1986 | 51.48 | 49.63 | a | 56.26 | 54.41 | c | 58.71 | 65.03 | 63.29 | 65.74 | 63.52 | c | 61.06 | 53.07 | 49.55 | 57.65 | ||||||||||
1987 | 48.35 | 54.04 | 56.16 | 56.29 | b | 61.00 | j | 62.04 | e | 64.10 | 65.48 | b | 66.03 | 65.10 | 55.07 | 46.39 | c | 58.10 | a | |||||||
1988 | 47.39 | 53.14 | 53.74 | 56.57 | 60.13 | 62.43 | 64.40 | a | 66.90 | 64.10 | a | 61.29 | 53.13 | 49.40 | a | 57.72 | ||||||||||
1989 | 46.74 | 43.68 | 50.52 | 59.77 | 60.32 | 64.34 | a | 65.74 | 65.45 | 72.17 | 59.90 | a | 53.80 | 49.94 | 57.70 | |||||||||||
1990 | 49.10 | 47.64 | 55.39 | 56.40 | 58.52 | 62.00 | a | 67.00 | 67.97 | 69.34 | a | 58.39 | 52.77 | 42.13 | 57.22 | |||||||||||
1991 | 47.06 | 56.00 | 51.29 | 54.00 | 57.03 | 60.37 | 66.00 | 64.16 | 70.33 | 62.29 | 52.50 | 49.61 | 57.55 | |||||||||||||
1992 | 51.00 | a | 56.14 | 58.94 | 58.87 | 62.83 | a | 64.27 | 67.06 | 68.13 | a | 64.75 | b | 61.45 | 52.83 | 46.23 | 59.37 | |||||||||
1993 | 44.03 | 51.75 | 55.00 | a | 56.20 | 63.03 | a | 64.20 | 64.74 | 68.00 | a | 65.57 | 60.52 | 51.07 | 48.16 | 57.69 | ||||||||||
1994 | 51.29 | 48.18 | 56.39 | 56.67 | 60.94 | 63.20 | 64.52 | 69.52 | 67.67 | 59.97 | a | 48.63 | 47.03 | 57.83 | ||||||||||||
1995 | 50.86 | c | 51.96 | a | 55.71 | 56.37 | 59.71 | 62.14 | b | 67.50 | a | 66.58 | 69.63 | 60.87 | a | 54.77 | 49.58 | 58.81 | ||||||||
1996 | 47.03 | 51.97 | 55.32 | 56.20 | 57.74 | 63.63 | 66.83 | a | 65.85 | k | ----- | z | 56.00 | l | 51.93 | 46.50 | o | 56.33 | d | |||||||
1997 | 47.82 | n | 51.11 | 51.70 | a | 56.53 | 64.00 | a | 65.70 | 68.26 | 70.68 | 71.20 | 59.84 | 58.13 | 50.60 | a | 60.70 | a | ||||||||
1998 | 48.94 | 52.93 | 54.65 | 56.66 | a | 59.39 | 62.23 | 65.23 | 68.52 | 66.70 | 62.26 | 53.17 | 45.25 | c | 57.99 | |||||||||||
1999 | 48.55 | 47.93 | 51.04 | d | 55.00 | d | 57.50 | a | 61.57 | 63.77 | a | 66.39 | 66.87 | 59.68 | 53.70 | 50.77 | 56.90 | |||||||||
2000 | 46.84 | 52.00 | 52.16 | 57.63 | 59.68 | 63.55 | a | 65.68 | 66.61 | 66.23 | 59.94 | 50.73 | 48.97 | 57.50 | ||||||||||||
2001 | 49.71 | 50.89 | 53.39 | 54.53 | 58.71 | c | 62.77 | 63.81 | 65.90 | 64.87 | 59.19 | 53.27 | 48.23 | 57.11 | ||||||||||||
2002 | 47.84 | 50.33 | a | 50.42 | 55.17 | 58.35 | 63.86 | a | 67.69 | b | 66.30 | a | 65.10 | 58.42 | 56.30 | 50.84 | 57.55 | |||||||||
2003 | 53.87 | a | 53.21 | ----- | z | 55.70 | 60.61 | 65.03 | a | 67.58 | 66.90 | 66.07 | 60.90 | 50.40 | 49.32 | 59.05 | a | |||||||||
2004 | 47.74 | 52.79 | ----- | z | 61.33 | 62.16 | 64.07 | b | 68.73 | a | 68.03 | a | 65.48 | a | 58.00 | o | ----- | z | ----- | z | 61.29 | d | ||||
2005 | ----- | z | ----- | z | 57.26 | 57.00 | 62.87 | a | 65.47 | 68.06 | 67.00 | 65.69 | a | 59.60 | a | 53.57 | 49.90 | 60.64 | b | |||||||
2006 | 50.68 | 51.39 | 51.68 | 57.43 | 61.10 | a | 65.73 | 67.20 | a | 64.77 | 66.30 | 58.97 | a | 51.30 | 49.45 | 58.00 | ||||||||||
2007 | 47.71 | 51.39 | 52.58 | 55.60 | 60.42 | 62.93 | 67.97 | a | 68.19 | 64.50 | 58.06 | 52.52 | a | 45.46 | e | 57.28 | ||||||||||
2008 | 45.61 | 49.97 | 50.16 | 52.53 | 57.30 | a | 58.93 | 62.52 | 64.53 | a | 65.63 | 58.71 | 54.40 | 44.94 | 55.44 | |||||||||||
2009 | 49.26 | 50.32 | 49.71 | 54.07 | 58.39 | c | 64.28 | a | 64.48 | 66.00 | 68.04 | b | 58.00 | 52.50 | 46.23 | 56.77 | ||||||||||
2010 | 51.74 | 54.32 | 55.39 | 54.97 | 57.10 | 61.23 | 61.80 | a | 63.50 | a | 63.00 | 61.39 | 50.47 | 48.52 | 56.95 | |||||||||||
2011 | 47.90 | 47.29 | 51.58 | 52.57 | 57.55 | 62.97 | a | 64.23 | 64.50 | c | 64.89 | b | 57.20 | a | 47.10 | 43.87 | 55.14 | |||||||||
2012 | 44.81 | 47.14 | 47.17 | b | 52.60 | 55.65 | 55.70 | 59.90 | 62.52 | d | ----- | z | 56.21 | b | 49.22 | g | 45.06 | n | 53.52 | c | ||||||
2013 | 42.45 | t | 47.33 | p | 46.09 | h | 46.20 | e | 56.06 | m | 55.09 | s | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 46.20 | k |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 48.15 | 50.99 | 52.81 | 55.56 | 59.48 | 62.87 | 65.52 | 66.70 | 66.79 | 60.49 | 53.04 | 47.99 | 57.53 | |||||||||||||
S.D. | 3.09 | 3.10 | 2.67 | 2.34 | 1.96 | 2.00 | 1.85 | 1.77 | 2.43 | 1.90 | 2.47 | 2.49 | 1.09 | |||||||||||||
SKEW | -0.15 | 0.19 | 0.15 | -0.83 | 0.26 | -0.59 | -0.36 | -0.13 | 0.69 | 0.20 | -0.68 | -0.39 | -0.03 | |||||||||||||
MAX | 56.42 | 58.82 | 58.94 | 61.33 | 64.00 | 67.07 | 69.20 | 70.68 | 72.30 | 65.10 | 58.13 | 52.57 | 60.66 | |||||||||||||
MIN | 40.47 | 43.68 | 47.17 | 46.20 | 55.65 | 55.70 | 59.90 | 62.52 | 63.00 | 56.21 | 45.53 | 42.13 | 54.96 | |||||||||||||
YRS | 52 | 57 | 56 | 60 | 57 | 57 | 60 | 55 | 57 | 58 | 53 | 51 | 38 |