YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1949 | 45.81 | 50.77 | 53.39 | 59.88 | 61.82 | 66.87 | 68.11 | 69.29 | 68.40 | 63.05 | 64.05 | 53.61 | 60.42 | |||||||||||||
1950 | 48.53 | 54.02 | 55.97 | 59.57 | 59.66 | 63.20 | 69.97 | 67.85 | 66.28 | 65.74 | 62.47 | 59.06 | 61.03 | |||||||||||||
1951 | 53.60 | 54.18 | 57.19 | 58.85 | 61.37 | 64.58 | 70.08 | 68.74 | 68.65 | 66.73 | 60.28 | 53.53 | 61.48 | |||||||||||||
1952 | 51.48 | 55.59 | 54.15 | 60.78 | 66.50 | 66.85 | 72.08 | 72.39 | 71.12 | 65.00 | 57.33 | 53.90 | 62.26 | |||||||||||||
1953 | 57.95 | 55.23 | 57.32 | 59.35 | 63.79 | 68.37 | 74.89 | 70.63 | 68.45 | 66.56 | 61.23 | 55.19 | 63.25 | |||||||||||||
1954 | 52.77 | 60.32 | 54.58 | 58.37 | 61.18 | 64.22 | 73.48 | 69.82 | 68.62 | 62.87 | 62.18 | 55.97 | 62.03 | |||||||||||||
1955 | 51.79 | 53.68 | 57.50 | 57.73 | 60.48 | 64.65 | 68.10 | 71.60 | 70.90 | 62.18 | 58.95 | 54.82 | 61.03 | |||||||||||||
1956 | 54.23 | 51.12 | 58.02 | 57.42 | 62.76 | 66.33 | 69.81 | 69.85 | 72.25 | 63.87 | 65.05 | 58.15 | 62.40 | |||||||||||||
1957 | 52.61 | 58.46 | 57.82 | 58.88 | 61.85 | 69.67 | 72.39 | 72.40 | 69.17 | ----- | z | ----- | z | ----- | z | 63.70 | c | |||||||||
1958 | ----- | z | ----- | z | ----- | z | 62.83 | 65.89 | 68.70 | 71.24 | 74.42 | 74.08 | 71.97 | 61.07 | 59.52 | 67.75 | c | |||||||||
1959 | 58.24 | 55.11 | 62.53 | 64.70 | 63.94 | 69.87 | 76.06 | 74.55 | 71.85 | 68.29 | 64.70 | 58.10 | 65.66 | |||||||||||||
1960 | 52.90 | 55.53 | 59.27 | 63.53 | 66.02 | 68.92 | 73.85 | 73.15 | 74.77 | 66.66 | 58.60 | 53.58 | 63.90 | |||||||||||||
1961 | 57.94 | 57.36 | 57.24 | 61.38 | 61.94 | 66.67 | 72.32 | 73.48 | 69.95 | 68.89 | 60.43 | 53.15 | 63.40 | |||||||||||||
1962 | 54.63 | 52.66 | 53.60 | 62.43 | 61.94 | 64.32 | 68.66 | 71.24 | 68.82 | 64.90 | 60.18 | 57.90 | 61.77 | |||||||||||||
1963 | 54.21 | 60.54 | 55.82 | 57.70 | 64.58 | 67.03 | 70.47 | 73.66 | 75.42 | 68.29 | 60.05 | 56.74 | 63.71 | |||||||||||||
1964 | 56.16 | 55.60 | 55.81 | 59.08 | 59.48 | 63.12 | 69.92 | 70.92 | 67.42 | 67.47 | 56.12 | 53.77 | 61.24 | |||||||||||||
1965 | 53.48 | 53.80 | 57.26 | 59.93 | 62.00 | 63.18 | 68.16 | 73.48 | 68.25 | 69.92 | 60.72 | 54.37 | 62.05 | |||||||||||||
1966 | 53.37 | 53.52 | 59.11 | 62.72 | 64.79 | 69.32 | 73.61 | 76.27 | 72.42 | 69.15 | 61.45 | 56.21 | 64.33 | |||||||||||||
1967 | 54.61 | 57.50 | 58.06 | 54.55 | 65.24 | 65.23 | 75.39 | 80.05 | 75.52 | 71.63 | 65.93 | 54.65 | 64.86 | |||||||||||||
1968 | 55.60 | 60.43 | 61.05 | 63.45 | 66.05 | 68.45 | 73.81 | 73.52 | 71.78 | 65.69 | 61.07 | 54.02 | 64.58 | |||||||||||||
1969 | 57.26 | 53.68 | 56.19 | 60.58 | 64.47 | 66.58 | 72.98 | 75.21 | 71.33 | 66.26 | 64.77 | 58.16 | 63.96 | |||||||||||||
1970 | 55.89 | 59.25 | 59.55 | 59.93 | 65.94 | 69.00 | 73.74 | 75.23 | 72.20 | 66.21 | 60.87 | 54.52 | 64.36 | |||||||||||||
1971 | 54.40 | 56.00 | 59.50 | 60.30 | 63.18 | 68.17 | 73.94 | 79.40 | 76.10 | 68.16 | 60.43 | 52.58 | 64.35 | |||||||||||||
1972 | 53.42 | 56.34 | 59.47 | 63.00 | 66.74 | 70.63 | 74.35 | 73.89 | 72.23 | 66.08 | 59.12 | 53.92 | 64.10 | |||||||||||||
1973 | 53.47 | 57.46 | 55.18 | 62.25 | 65.65 | 71.43 | 72.94 | 73.35 | 68.53 | 67.13 | 58.02 | 55.40 | 63.40 | |||||||||||||
1974 | 53.37 | 55.68 | 57.19 | 62.00 | 64.65 | 70.40 | 73.89 | 73.32 | 72.13 | 66.69 | 63.18 | 54.10 | 63.88 | |||||||||||||
1975 | 56.71 | 58.30 | 56.79 | 57.18 | 63.39 | 66.72 | 72.76 | 72.65 | 74.15 | 66.71 | 60.55 | 57.18 | 63.59 | |||||||||||||
1976 | 60.08 | 59.22 | 59.94 | 59.52 | 66.27 | 71.92 | 73.53 | 74.15 | 74.33 | 72.24 | 66.18 | 58.97 | 66.36 | |||||||||||||
1977 | 57.66 | 59.38 | 55.50 | 62.72 | 63.21 | 68.85 | 74.21 | 76.31 | 71.58 | 70.42 | 66.37 | 61.15 | 65.61 | |||||||||||||
1978 | 56.23 | 56.82 | 63.97 | 61.37 | 68.87 | 69.93 | 72.53 | 72.95 | 74.15 | 69.66 | 58.42 | 52.58 | 64.79 | |||||||||||||
1979 | 53.68 | 55.21 | 59.37 | 64.22 | 65.74 | 72.03 | 72.02 | 73.52 | 74.87 | 66.39 | 59.73 | 58.60 | 64.61 | |||||||||||||
1980 | 58.48 | 60.83 | 58.03 | 62.58 | 62.47 | 68.83 | 74.06 | 74.37 | 70.27 | 67.85 | 61.62 | 59.11 | 64.88 | |||||||||||||
1981 | 58.39 | 59.71 | 58.63 | 62.98 | 66.65 | 75.05 | 75.77 | 75.98 | 73.15 | 66.56 | 61.92 | 58.29 | 66.09 | |||||||||||||
1982 | 53.82 | 58.62 | 57.98 | 61.45 | 64.89 | 65.52 | 73.29 | 75.85 | 74.00 | 69.40 | 60.48 | 55.65 | 64.25 | |||||||||||||
1983 | 58.39 | 58.73 | 59.76 | 61.10 | 66.13 | 68.28 | 74.06 | 79.06 | 76.70 | 70.94 | 60.42 | 56.13 | 65.81 | |||||||||||||
1984 | 57.81 | 57.97 | 61.47 | 62.30 | 67.97 | 69.28 | 76.65 | 76.60 | 79.13 | 66.02 | 57.67 | 54.00 | 65.57 | |||||||||||||
1985 | 54.29 | 56.02 | 56.16 | 62.65 | 63.44 | 69.48 | 75.65 | 73.16 | 69.98 | 67.40 | 58.02 | 57.68 | 63.66 | |||||||||||||
1986 | 60.84 | 58.43 | 60.24 | 62.40 | 65.06 | 69.02 | 71.42 | 74.48 | 67.63 | 66.66 | 63.12 | 57.21 | 64.71 | |||||||||||||
1987 | 54.13 | 57.27 | 58.98 | 65.43 | 66.18 | 68.07 | 69.56 | 72.03 | 73.42 | 70.53 | 61.97 | 53.02 | 64.22 | |||||||||||||
1988 | 56.10 | 60.57 | 63.29 | 63.35 | 66.15 | 66.85 | 73.26 | 73.11 | 71.03 | 68.34 | 60.42 | 55.98 | 64.87 | |||||||||||||
1989 | 55.24 | 55.77 | 61.10 | 66.73 | 65.40 | 68.08 | 72.61 | 72.21 | 72.25 | 67.13 | 64.75 | 59.31 | 65.05 | |||||||||||||
1990 | 56.74 | 55.43 | 59.35 | 64.15 | 66.00 | 71.65 | 75.81 | 73.40 | 73.62 | 70.24 | 63.10 | 55.53 | 65.42 | |||||||||||||
1991 | 56.98 | 61.25 | 56.06 | 62.55 | 62.98 | 65.93 | 70.32 | 72.24 | 72.40 | 69.92 | 63.80 | 57.92 | 64.36 | |||||||||||||
1992 | 57.23 | 60.41 | 59.26 | 67.17 | 68.10 | 69.35 | 74.79 | 77.47 | 74.52 | 68.92 | 62.82 | 54.44 | 66.20 | |||||||||||||
1993 | 55.85 | 56.93 | 61.76 | 64.32 | 67.65 | 70.43 | 72.18 | 72.87 | 72.05 | 68.82 | 62.17 | 56.97 | 65.17 | |||||||||||||
1994 | 58.48 | 56.36 | 61.16 | 62.32 | 63.79 | 71.58 | 72.11 | 77.40 | 73.82 | 67.53 | 56.88 | 56.55 | 64.83 | |||||||||||||
1995 | 56.32 | 61.80 | 60.13 | 61.77 | 62.18 | 66.78 | 72.85 | 74.77 | 73.95 | 67.82 | 63.23 | 58.18 | 64.98 | |||||||||||||
1996 | 57.18 | 58.41 | 59.42 | 65.50 | 67.21 | 70.10 | 73.19 | 74.97 | 71.78 | 64.79 | 61.30 | 56.73 | 65.05 | |||||||||||||
1997 | 56.00 | 56.88 | 62.03 | 63.68 | 71.23 | 70.18 | 72.35 | 77.00 | 78.88 | 70.74 | 64.53 | 57.47 | 66.75 | |||||||||||||
1998 | 56.84 | 56.57 | 61.29 | 62.25 | 65.47 | 70.17 | 76.02 | 80.08 | 74.25 | 67.76 | 60.15 | 56.48 | 65.61 | |||||||||||||
1999 | 59.02 | 56.93 | 57.61 | 58.85 | 62.92 | 65.93 | 72.06 | 70.92 | 68.97 | 70.56 | 60.75 | 57.82 | 63.53 | |||||||||||||
2000 | 58.73 | 57.88 | 59.11 | 64.00 | 67.92 | 72.58 | 73.82 | 75.42 | 72.38 | 64.73 | 56.93 | 57.11 | 65.05 | |||||||||||||
2001 | 52.40 | 52.46 | 59.02 | 59.18 | 66.18 | 70.50 | 70.85 | 72.31 | 71.57 | 66.92 | 60.53 | 54.03 | 63.00 | |||||||||||||
2002 | 55.12 | a | 57.98 | 58.32 | 60.12 | 64.00 | 67.22 | 71.29 | 70.11 | 71.95 | 63.90 | 63.62 | 55.68 | 63.28 | ||||||||||||
2003 | 61.98 | 57.55 | 59.92 | 59.63 | 63.27 | 66.58 | 73.87 | 75.97 | 71.27 | 69.90 | 59.75 | 55.65 | 64.61 | |||||||||||||
2004 | 56.53 | 55.38 | 63.08 | 64.07 | 69.40 | 68.48 | 73.77 | 72.05 | 74.05 | 64.81 | 58.27 | 55.85 | 64.65 | |||||||||||||
2005 | 56.48 | 58.07 | 59.31 | 61.47 | 66.55 | 67.45 | 72.27 | 73.34 | 69.40 | 66.02 | 63.37 | 57.84 | 64.30 | |||||||||||||
2006 | 57.18 | 58.12 | 54.34 | 59.37 | 65.35 | 71.95 | 77.53 | 73.24 | 70.12 | 65.82 | 63.48 | 56.18 | 64.39 | |||||||||||||
2007 | 54.00 | 57.46 | 62.66 | 62.63 | 65.85 | 68.70 | 73.73 | 75.89 | 71.82 | 68.32 | 62.70 | 55.29 | 64.92 | |||||||||||||
2008 | 55.00 | 55.69 | 60.21 | 63.70 | 64.63 | 70.12 | 72.08 | 74.35 | 72.63 | 70.18 | 64.48 | 54.60 | 64.81 | |||||||||||||
2009 | 60.03 | 56.30 | 58.79 | 62.35 | 66.34 | 67.48 | 73.58 | 74.40 | 75.10 | 66.97 | 62.25 | 55.53 | 64.93 | |||||||||||||
2010 | 56.92 | 56.93 | 59.77 | 59.35 | 63.26 | 66.87 | 69.40 | 71.61 | 71.12 | 66.65 | 60.92 | 56.23 | 63.25 | |||||||||||||
2011 | 58.06 | 54.91 | 59.61 | 63.17 | 63.95 | 66.30 | 72.52 | 72.19 | 70.80 | 67.03 | 59.48 | 54.19 | 63.52 | |||||||||||||
2012 | 58.03 | 57.21 | 58.55 | 63.05 | 66.37 | 68.92 | 70.69 | 76.42 | 77.48 | 70.71 | 63.23 | 56.39 | 65.59 | |||||||||||||
2013 | 55.48 | 56.20 | 61.15 | 63.67 | 68.39 | 70.10 | 72.55 | 73.00 | 74.20 | 66.97 | 63.60 | 58.05 | 65.28 | |||||||||||||
2014 | 61.23 | 59.75 | 63.02 | 65.12 | 69.97 | 69.57 | 75.18 | 75.53 | 76.97 | 71.68 | 65.18 | 59.02 | 67.68 | |||||||||||||
2015 | 60.71 | 63.11 | 67.16 | 65.92 | 64.66 | 71.73 | 75.32 | 77.61 | 79.10 | 75.81 | 62.77 | 57.27 | 68.43 | |||||||||||||
2016 | 57.31 | 63.41 | 61.77 | 65.68 | 64.87 | 70.62 | 75.23 | 74.56 | 73.50 | 69.73 | 64.90 | 57.47 | 66.59 | |||||||||||||
2017 | 55.71 | 58.07 | 63.32 | 65.95 | 65.85 | 69.65 | 75.19 | 75.47 | 73.68 | 72.39 | 65.90 | 60.76 | 66.83 | |||||||||||||
2018 | 62.65 | 59.25 | 60.68 | 65.13 | 65.11 | 69.60 | 77.85 | 78.13 | 72.85 | 70.00 | 65.58 | 58.73 | 67.13 | |||||||||||||
2019 | 57.92 | 53.20 | 60.63 | 64.88 | 63.95 | 68.98 | 74.55 | 76.15 | 75.92 | 71.16 | 62.57 | 56.03 | 65.49 | |||||||||||||
2020 | 56.27 | 58.78 | 58.32 | 62.48 | 68.40 | 69.92 | 72.56 | 75.87 | 75.22 | 71.61 | 61.87 | 58.13 | 65.79 | |||||||||||||
2021 | 57.44 | 58.82 | 57.71 | 63.38 | 65.21 | 68.65 | 73.69 | 74.29 | 72.25 | 66.56 | 64.23 | 54.35 | 64.72 | |||||||||||||
2022 | 58.00 | 59.21 | 61.79 | 64.88 | 65.15 | 71.22 | 73.52 | 77.31 | 79.13 | 70.95 | 61.02 | 58.06 | 66.69 | |||||||||||||
2023 | 56.35 | 56.50 | 58.50 | 62.40 | 62.76 | 66.25 | 74.98 | 75.68 | 72.60 | 71.06 | 65.98 | c | 62.02 | 65.42 | ||||||||||||
2024 | 58.21 | 58.74 | 60.53 | 62.50 | h | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 59.16 | i | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 56.11 | 57.18 | 59.06 | 62.02 | 64.91 | 68.47 | 72.98 | 74.08 | 72.57 | 68.01 | 61.77 | 56.38 | 64.46 | |||||||||||||
S.D. | 2.84 | 2.56 | 2.61 | 2.52 | 2.33 | 2.39 | 2.15 | 2.56 | 2.87 | 2.59 | 2.50 | 2.10 | 1.58 | |||||||||||||
SKEW | -0.56 | -0.09 | 0.15 | -0.36 | 0.06 | -0.17 | -0.30 | 0.09 | 0.25 | 0.20 | -0.12 | 0.27 | -0.33 | |||||||||||||
MAX | 62.65 | 63.41 | 67.16 | 67.17 | 71.23 | 75.05 | 77.85 | 80.08 | 79.13 | 75.81 | 66.37 | 62.02 | 68.43 | |||||||||||||
MIN | 45.81 | 50.77 | 53.39 | 54.55 | 59.48 | 63.12 | 68.10 | 67.85 | 66.28 | 62.18 | 56.12 | 52.58 | 60.42 | |||||||||||||
YRS | 75 | 75 | 75 | 75 | 75 | 75 | 75 | 75 | 75 | 74 | 74 | 74 | 73 |