YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1953 | 51.25 | o | 50.39 | 51.35 | 54.90 | 60.71 | 61.70 | 68.16 | 68.23 | 68.53 | 62.65 | 56.00 | 50.97 | 59.42 | a | |||||||||||
1954 | 45.58 | 52.46 | 52.10 | 53.73 | 60.71 | 61.00 | 64.71 | 66.10 | 66.77 | 62.48 | 56.73 | 49.55 | 57.66 | |||||||||||||
1955 | 46.71 | 47.86 | 47.68 | 51.20 | 56.68 | 62.03 | 63.81 | 66.58 | 66.20 | 59.13 | 48.57 | 47.55 | 55.33 | |||||||||||||
1956 | 46.97 | 43.59 | 49.29 | 56.80 | 61.94 | 61.27 | 68.55 | 67.03 | 66.47 | 57.94 | 53.37 | 48.39 | 56.80 | |||||||||||||
1957 | 42.35 | 49.61 | 52.23 | 56.20 | 61.61 | 65.60 | 67.61 | 68.58 | 72.53 | 61.52 | 54.63 | 51.13 | 58.63 | |||||||||||||
1958 | 51.84 | 55.46 | 53.26 | 56.70 | 63.68 | 67.40 | 70.52 | 71.06 | 68.47 | 64.35 | 53.30 | 53.23 | 60.77 | |||||||||||||
1959 | 48.77 | 48.68 | 52.06 | 56.83 | 60.87 | 63.73 | 68.68 | 67.39 | 63.97 | 61.65 | 54.40 | 49.26 | 58.02 | |||||||||||||
1960 | 45.87 | 50.72 | 51.90 | 56.60 | 58.35 | 64.00 | 67.71 | 66.42 | 67.60 | 61.16 | 53.63 | 50.23 | 57.85 | |||||||||||||
1961 | 53.77 | 51.75 | 52.71 | 54.27 | 60.00 | 67.23 | 69.29 | 69.06 | 65.53 | 59.68 | 52.03 | 47.61 | 58.58 | |||||||||||||
1962 | 47.13 | 50.50 | 50.90 | 55.60 | 56.61 | 62.07 | 65.00 | 68.32 | 67.07 | 61.10 | 55.10 | 51.52 | 57.58 | |||||||||||||
1963 | 43.68 | 57.11 | 52.55 | 54.93 | 61.52 | 62.47 | 67.35 | 68.29 | 70.57 | 62.32 | 53.77 | 51.35 | 58.83 | |||||||||||||
1964 | 49.19 | 50.83 | 51.32 | 53.33 | 57.29 | 62.03 | 66.35 | 67.42 | 65.83 | 63.23 | 51.63 | 45.29 | 56.98 | |||||||||||||
1965 | 48.03 | 49.39 | 58.03 | 56.80 | 57.58 | 63.60 | 68.06 | 69.58 | 66.03 | 64.10 | 54.50 | 46.00 | 58.48 | |||||||||||||
1966 | 47.87 | 49.14 | 51.39 | 56.67 | 59.35 | 65.07 | 67.19 | 70.71 | 68.80 | 60.23 | 54.27 | 50.10 | 58.40 | |||||||||||||
1967 | 48.77 | 50.29 | 49.23 | 52.87 | 60.00 | 65.27 | 69.87 | 73.13 | 70.90 | 60.74 | 54.60 | 45.77 | 58.45 | |||||||||||||
1968 | 47.74 | 55.83 | 53.61 | 53.90 | 59.90 | 63.90 | 69.10 | 68.16 | 66.23 | 58.39 | 53.43 | 45.03 | 57.94 | |||||||||||||
1969 | 39.71 | 47.46 | 53.52 | 54.07 | 62.52 | 65.67 | 65.84 | 68.39 | 64.87 | 59.65 | 54.23 | 49.90 | 57.15 | |||||||||||||
1970 | 47.35 | 55.36 | 54.03 | 52.73 | 60.29 | 65.30 | 67.35 | 69.32 | 65.80 | 59.26 | 53.63 | 46.29 | 58.06 | |||||||||||||
1971 | 45.32 | 48.75 | 49.23 | 54.73 | 58.77 | 61.50 | 66.06 | 71.13 | 67.80 | 59.39 | 52.50 | 46.32 | 56.79 | |||||||||||||
1972 | 44.90 | 49.31 | 54.10 | 54.50 | 62.32 | 65.30 | 71.45 | 73.81 | 67.40 | 61.87 | 53.80 | 43.94 | 58.56 | |||||||||||||
1973 | 46.19 | 53.14 | 51.90 | 57.47 | 62.29 | 63.63 | 68.55 | 65.42 | 67.90 | 59.29 | 50.30 | 50.35 | 58.04 | |||||||||||||
1974 | 44.61 | 47.68 | 51.16 | 55.20 | 57.55 | 63.13 | 67.45 | 68.48 | 71.20 | 62.03 | 54.20 | 50.45 | 57.76 | |||||||||||||
1975 | 47.61 | 49.32 | 50.87 | 53.00 | 60.29 | 62.17 | 67.97 | 65.97 | 69.90 | 56.52 | 51.50 | 50.26 | 57.11 | |||||||||||||
1976 | 50.19 | 49.34 | 50.71 | 56.93 | 60.45 | 63.23 | 69.00 | 67.97 | 69.07 | 61.77 | 56.33 | 49.90 | 58.74 | |||||||||||||
1977 | 46.68 | 53.32 | 50.81 | 56.93 | 58.10 | 64.53 | 67.10 | 70.42 | 65.77 | 61.48 | 51.13 | 48.65 | 57.91 | |||||||||||||
1978 | 49.00 | 51.71 | 55.94 | 56.40 | 60.97 | 67.77 | 68.32 | 68.81 | 65.47 | 64.65 | 49.60 | 43.87 | 58.54 | |||||||||||||
1979 | 41.94 | 47.64 | 55.68 | 56.40 | 62.74 | 65.17 | 70.52 | 69.16 | 71.57 | 62.45 | 54.30 | 53.19 | 59.23 | |||||||||||||
1980 | 45.81 | 52.62 | 51.19 | 58.83 | 59.06 | 62.23 | 67.19 | 64.65 | 66.63 | 65.10 | 56.93 | 52.97 | 58.60 | |||||||||||||
1981 | 55.23 | 54.18 | 56.68 | 56.90 | 60.32 | 64.40 | 67.19 | 70.84 | 68.00 | 61.81 | 56.47 | 51.58 | 60.30 | |||||||||||||
1982 | 46.94 | 50.07 | 52.77 | 55.10 | 60.10 | 64.40 | 66.42 | 69.68 | 68.77 | 63.68 | 53.77 | 49.61 | 58.44 | |||||||||||||
1983 | 53.00 | 56.14 | 58.06 | 60.13 | 63.19 | 67.17 | 68.10 | 69.74 | 66.63 | 60.39 | 54.17 | 43.77 | 60.04 | |||||||||||||
1984 | 49.61 | 52.41 | 55.45 | 54.40 | 58.10 | 61.07 | 67.84 | 69.68 | 67.63 | 57.55 | 52.97 | 45.77 | 57.71 | |||||||||||||
1985 | 47.55 | 47.43 | 50.84 | 55.63 | 60.52 | 65.27 | 68.94 | 68.29 | 64.90 | 58.68 | 45.20 | 47.74 | 56.75 | |||||||||||||
1986 | 54.16 | 50.46 | 57.26 | 55.77 | 60.65 | 66.67 | 65.35 | 68.52 | 64.23 | 62.42 | 54.13 | 50.32 | 59.16 | |||||||||||||
1987 | 49.77 | 53.57 | 56.19 | 58.80 | 62.58 | 65.50 | 65.94 | 68.87 | 67.70 | 66.13 | 56.83 | 48.00 | 59.99 | |||||||||||||
1988 | 47.97 | 53.55 | 54.03 | 56.57 | 60.48 | 64.47 | 68.58 | 67.90 | 66.40 | 62.58 | 53.37 | 49.61 | 58.79 | |||||||||||||
1989 | 47.74 | 44.32 | 51.35 | 61.17 | 61.55 | 66.00 | 66.87 | 67.58 | 72.40 | 61.19 | 55.03 | 50.52 | 58.81 | |||||||||||||
1990 | 50.35 | 50.11 | 55.23 | 57.60 | 60.13 | 64.70 | 70.10 | 70.29 | 69.53 | 59.68 | 54.37 | 42.65 | 58.73 | |||||||||||||
1991 | 47.65 | 55.57 | 50.71 | 53.93 | 56.06 | 60.50 | 67.06 | 65.61 | 71.33 | 61.55 | 53.20 | 49.42 | 57.72 | |||||||||||||
1992 | 50.68 | 55.97 | 57.97 | 58.63 | 64.58 | 65.80 | 67.97 | 69.61 | 65.57 | 60.87 | 53.03 | 45.81 | 59.71 | |||||||||||||
1993 | 44.71 | 50.36 | 54.39 | 55.23 | 63.42 | 63.77 | 64.29 | 68.23 | 65.30 | 61.61 | 50.50 | 48.84 | 57.55 | |||||||||||||
1994 | 51.19 | 48.50 | 56.42 | 56.03 | 61.77 | 63.60 | 66.03 | 69.74 | 68.80 | 59.32 | 48.97 | 47.97 | 58.20 | |||||||||||||
1995 | 51.55 | 53.11 | 54.87 | 55.87 | 60.71 | 65.17 | 69.00 | 67.84 | 68.80 | 60.68 | 56.50 | 50.61 | 59.56 | |||||||||||||
1996 | 47.77 | 52.03 | 54.23 | 56.73 | 57.68 | 63.77 | 68.68 | 68.74 | 64.93 | 60.06 | 52.10 | 49.52 | 58.02 | |||||||||||||
1997 | 49.26 | 50.82 | 52.16 | 56.17 | 65.32 | 64.90 | 68.94 | 71.90 | 69.97 | 59.61 | 57.13 | 50.35 | 59.71 | |||||||||||||
1998 | 50.65 | 52.54 | 53.35 | 56.67 | 57.29 | 60.07 | 65.68 | 69.52 | 67.67 | 60.61 | 52.47 | 46.77 | 57.77 | |||||||||||||
1999 | 48.81 | 49.57 | 51.29 | 56.03 | 58.06 | 62.47 | 65.87 | 67.94 | 67.67 | 61.52 | 60.20 | 52.58 | 58.50 | |||||||||||||
2000 | 48.81 | 52.24 | 53.32 | 59.00 | 59.97 | 65.63 | 68.84 | 68.39 | 68.47 | 64.19 | 54.07 | 50.45 | 59.45 | |||||||||||||
2001 | 51.23 | 51.14 | 53.48 | 53.83 | 60.97 | 62.70 | 64.74 | 67.32 | 65.70 | 59.03 | 55.07 | 49.53 | a | 57.90 | ||||||||||||
2002 | 48.32 | 51.07 | 50.52 | 55.60 | 57.81 | 64.37 | 68.52 | 68.68 | 67.93 | 60.26 | 57.23 | 51.00 | 58.44 | |||||||||||||
2003 | 53.65 | 51.61 | 53.32 | 54.83 | 60.52 | 66.53 | 69.71 | 69.74 | 69.47 | 61.87 | 52.00 | 49.39 | 59.39 | |||||||||||||
2004 | 47.48 | 52.34 | 55.10 | 61.13 | 61.87 | 66.93 | 69.97 | 70.10 | 66.50 | 60.77 | 53.97 | 50.90 | a | 59.76 | ||||||||||||
2005 | 50.65 | 54.25 | 56.65 | 56.07 | 63.19 | 65.03 | 69.71 | 69.42 | 65.83 | 59.87 | 52.53 | 49.19 | 59.37 | |||||||||||||
2006 | 51.61 | 50.25 | 51.74 | 56.53 | 62.00 | 65.63 | 67.71 | 66.10 | 67.43 | 59.87 | 52.33 | 49.03 | 58.35 | |||||||||||||
2007 | 46.68 | 49.50 | 53.03 | 54.93 | 60.55 | 63.23 | 68.71 | 68.90 | 65.27 | 58.97 | 52.67 | 47.65 | 57.51 | |||||||||||||
2008 | 46.23 | 50.41 | 49.97 | 52.60 | 59.26 | 60.60 | 65.77 | 66.61 | 67.37 | 60.74 | 56.13 | 45.48 | 56.76 | |||||||||||||
2009 | 50.03 | 51.14 | 50.06 | 56.40 | 61.39 | 65.60 | 68.61 | 68.71 | 69.97 | 60.77 | 54.13 | 47.32 | 58.68 | |||||||||||||
2010 | 53.61 | 55.14 | 55.77 | 54.57 | 57.68 | 63.33 | 65.58 | 66.71 | 66.80 | 61.23 | 50.30 | 49.16 | 58.32 | |||||||||||||
2011 | 47.71 | 46.68 | 50.71 | 51.63 | 57.19 | 62.93 | 65.94 | 68.23 | 68.27 | 60.03 | 52.40 | 47.29 | 56.58 | |||||||||||||
2012 | 48.97 | 50.07 | 49.45 | 55.73 | 59.10 | 61.73 | 65.16 | 68.23 | 67.80 | 59.71 | 53.77 | 48.19 | 57.33 | |||||||||||||
2013 | 46.68 | 49.61 | 52.71 | 55.43 | 61.29 | 65.77 | 65.81 | 68.35 | 66.57 | 60.65 | 53.83 | 44.16 | 57.57 | |||||||||||||
2014 | 51.65 | 48.18 | 54.68 | 58.13 | 64.23 | 64.80 | 68.77 | 70.52 | 71.87 | 65.26 | 54.43 | 52.45 | 60.41 | |||||||||||||
2015 | 53.32 | 56.46 | 58.35 | 58.40 | 61.42 | 67.93 | 72.26 | 72.90 | 68.17 | 65.61 | 54.77 | 51.29 | 61.74 | |||||||||||||
2016 | 51.26 | 55.24 | 56.24 | b | 61.60 | 63.81 | 66.57 | 68.84 | 72.81 | 69.03 | 62.19 | 59.07 | 47.19 | 61.15 | ||||||||||||
2017 | 45.87 | 49.39 | 51.77 | 55.57 | 60.71 | 65.00 | 68.29 | 70.61 | 70.00 | 61.61 | 53.50 | 48.68 | 58.42 | |||||||||||||
2018 | 52.35 | 47.89 | 52.61 | 56.73 | 61.97 | 65.43 | 68.42 | 68.87 | 67.30 | 61.94 | 55.97 | 50.74 | 59.19 | |||||||||||||
2019 | 52.00 | 44.86 | 55.61 | 56.67 | 61.52 | 65.30 | 68.68 | 71.16 | 66.67 | 58.74 | 53.83 | 49.03 | 58.67 | |||||||||||||
2020 | 50.19 | 49.52 | 50.29 | 57.17 | 62.71 | 64.40 | 67.10 | 69.97 | 70.07 | 60.19 | 53.47 | 51.03 | 58.84 | |||||||||||||
2021 | 49.68 | 47.36 | 51.26 | 58.17 | 60.23 | 68.30 | 67.32 | 68.23 | 68.03 | 59.55 | 54.57 | 45.74 | 58.20 | |||||||||||||
2022 | 51.57 | a | 50.82 | 51.84 | 53.97 | 57.52 | 65.37 | 70.10 | 72.61 | 70.37 | 64.65 | 52.07 | 47.81 | 59.06 | ||||||||||||
2023 | 49.39 | 48.57 | 51.03 | 53.93 | 62.28 | b | 64.33 | 70.74 | 72.86 | b | 68.23 | 63.58 | 54.97 | 53.10 | 59.42 | |||||||||||
2024 | 50.10 | 51.72 | 54.30 | d | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 52.04 | i | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 48.69 | 50.91 | 53.00 | 55.98 | 60.48 | 64.30 | 67.79 | 68.96 | 67.81 | 61.20 | 53.75 | 48.82 | 58.47 | |||||||||||||
S.D. | 3.01 | 2.91 | 2.46 | 2.08 | 2.09 | 1.92 | 1.76 | 1.92 | 2.02 | 1.99 | 2.35 | 2.50 | 1.13 | |||||||||||||
SKEW | -0.28 | 0.04 | 0.36 | 0.39 | -0.08 | -0.18 | -0.04 | 0.36 | 0.40 | 0.40 | -0.48 | -0.41 | 0.28 | |||||||||||||
MAX | 55.23 | 57.11 | 58.35 | 61.60 | 65.32 | 68.30 | 72.26 | 73.81 | 72.53 | 66.13 | 60.20 | 53.23 | 61.74 | |||||||||||||
MIN | 39.71 | 43.59 | 47.68 | 51.20 | 56.06 | 60.07 | 63.81 | 64.65 | 63.97 | 56.52 | 45.20 | 42.65 | 55.33 | |||||||||||||
YRS | 71 | 72 | 72 | 71 | 71 | 71 | 71 | 71 | 71 | 71 | 71 | 71 | 70 |