YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1939 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 63.39 | 64.74 | 65.13 | 57.29 | 53.27 | 50.13 | 58.99 | f | ||||||
1940 | 50.74 | 49.79 | 51.74 | 54.73 | 58.61 | 59.87 | 61.45 | 63.10 | 61.63 | 58.32 | 50.63 | 51.65 | 56.02 | |||||||||||||
1941 | 49.52 | 52.32 | 53.77 | 53.27 | 59.10 | 59.80 | 62.45 | 64.00 | 60.17 | 56.61 | 52.10 | 48.68 | 55.98 | |||||||||||||
1942 | 47.13 | 45.82 | 47.84 | 53.07 | 56.03 | 59.17 | 62.65 | 63.55 | 60.60 | 57.48 | 51.03 | 47.77 | 54.34 | |||||||||||||
1943 | 47.58 | 49.64 | 52.65 | 53.57 | 56.87 | 57.50 | 61.71 | 64.29 | 61.10 | 58.13 | 49.57 | 48.90 | 55.13 | |||||||||||||
1944 | 45.97 | 45.83 | 48.32 | 51.73 | 56.13 | 57.73 | 60.19 | 61.45 | 60.37 | 57.81 | 51.43 | 47.03 | 53.67 | |||||||||||||
1945 | 45.74 | 48.11 | 47.39 | 50.23 | 55.94 | 59.70 | 63.16 | 65.52 | 63.63 | 60.16 | 49.53 | 48.45 | 54.80 | |||||||||||||
1946 | 45.61 | 44.52 | a | 49.00 | 55.17 | 58.23 | 60.87 | 64.23 | 65.42 | 63.67 | 55.13 | 49.20 | 49.03 | 55.01 | ||||||||||||
1947 | 42.10 | 49.04 | 52.13 | 54.89 | c | 57.39 | 60.30 | 60.71 | 63.58 | 63.30 | 58.45 | 49.27 | 45.94 | 54.76 | ||||||||||||
1948 | 44.81 | 45.28 | 47.26 | 52.60 | 54.74 | 58.50 | 60.03 | 61.84 | 60.33 | 57.26 | 48.23 | 44.58 | 52.95 | |||||||||||||
1949 | 39.45 | 44.54 | 48.26 | 53.83 | 56.06 | 60.97 | 63.26 | 63.23 | 62.83 | 55.52 | 53.40 | 44.97 | 53.86 | |||||||||||||
1950 | 43.68 | 47.36 | 50.52 | 53.77 | 55.35 | 58.13 | 63.77 | 62.00 | 61.47 | 58.58 | 53.47 | 50.26 | 54.86 | |||||||||||||
1951 | 46.77 | 46.86 | 49.94 | 55.07 | 56.00 | 60.60 | 63.32 | 63.03 | 61.30 | 58.77 | 52.87 | 47.71 | 55.19 | |||||||||||||
1952 | 46.29 | 48.93 | 48.55 | 53.60 | 57.68 | 58.53 | 61.71 | 63.77 | 62.90 | 58.94 | 51.07 | 47.29 | 54.94 | |||||||||||||
1953 | 50.10 | 45.86 | 49.39 | 53.17 | 55.16 | 58.90 | 65.13 | 64.26 | 61.37 | 58.29 | 53.63 | 46.26 | 55.13 | |||||||||||||
1954 | 46.84 | 50.29 | 50.35 | 55.10 | 57.39 | 59.70 | 65.74 | 65.26 | 61.87 | 56.77 | 54.20 | 48.10 | 55.97 | |||||||||||||
1955 | 45.55 | 45.64 | 51.32 | 51.63 | 55.94 | 59.13 | 62.97 | 65.90 | 64.67 | 57.35 | 51.63 | 50.32 | 55.17 | |||||||||||||
1956 | 48.32 | 45.28 | 49.52 | 53.07 | 57.97 | 60.33 | 63.61 | 63.94 | 63.50 | 58.90 | 51.83 | 48.29 | 55.38 | |||||||||||||
1957 | 49.90 | 53.11 | 52.23 | 54.23 | 57.74 | 61.77 | 64.94 | 66.87 | 63.60 | 58.90 | 51.53 | 51.52 | 57.19 | |||||||||||||
1958 | 49.48 | 53.25 | 50.16 | 55.60 | 59.35 | 62.30 | 64.35 | 67.52 | 64.90 | 62.77 | 52.33 | 51.29 | 57.78 | |||||||||||||
1959 | 50.81 | 49.14 | 54.42 | 58.47 | 59.00 | 62.73 | 67.87 | 67.87 | 66.17 | 59.74 | 54.70 | 51.06 | 58.50 | |||||||||||||
1960 | 46.23 | 49.10 | 52.29 | 54.53 | 57.81 | 60.23 | 64.00 | 64.81 | 64.80 | 58.03 | 52.13 | 45.87 | 55.82 | |||||||||||||
1961 | 50.29 | 49.71 | 51.84 | 54.20 | 55.87 | 59.03 | 64.74 | 66.39 | 61.90 | 57.94 | 51.37 | 47.68 | 55.91 | |||||||||||||
1962 | 46.35 | 50.14 | 47.84 | 53.97 | 56.45 | 58.63 | 62.26 | 63.81 | 61.87 | 57.32 | 52.03 | 47.87 | 54.88 | |||||||||||||
1963 | 46.26 | 52.64 | 49.00 | 50.93 | 57.77 | 58.90 | 62.10 | 65.39 | 66.23 | 60.71 | 52.00 | 46.10 | 55.67 | |||||||||||||
1964 | 45.16 | 45.41 | 49.58 | 53.03 | 54.81 | 58.63 | 62.87 | 65.29 | 61.23 | 60.61 | 49.20 | 48.39 | 54.52 | |||||||||||||
1965 | 46.06 | 46.46 | 50.77 | 52.93 | 56.84 | 59.20 | 62.23 | 66.19 | 62.00 | 59.16 | 54.43 | 46.55 | 55.24 | |||||||||||||
1966 | 44.32 | 45.79 | 50.97 | 55.23 | 59.35 | 62.03 | 63.97 | 67.19 | 63.83 | 59.74 | 54.47 | 48.71 | 56.30 | |||||||||||||
1967 | 45.52 | 47.29 | 52.65 | 49.93 | 57.00 | 58.33 | 64.90 | 67.48 | 67.10 | 59.52 | 57.80 | 46.87 | 56.20 | |||||||||||||
1968 | 47.90 | 53.79 | 53.03 | 55.40 | 58.65 | 60.77 | 66.23 | 66.45 | 64.97 | 58.97 | 53.47 | 45.58 | 57.10 | |||||||||||||
1969 | 51.81 | 48.68 | 49.06 | 55.60 | 58.23 | 61.83 | 64.48 | 66.77 | 64.57 | 59.32 | 54.80 | 51.52 | 57.22 | |||||||||||||
1970 | 50.26 | 51.57 | 54.10 | 53.63 | 58.16 | 61.63 | 65.42 | 68.03 | 62.97 | 60.19 | 54.80 | 48.97 | 57.48 | |||||||||||||
1971 | 46.71 | 49.25 | 50.87 | 53.57 | 56.52 | 59.93 | 64.06 | 69.58 | 66.43 | 57.06 | 51.83 | 46.58 | 56.03 | |||||||||||||
1972 | 45.61 | 49.69 | 54.90 | 55.50 | 59.29 | 62.57 | 66.74 | 66.65 | 63.43 | 59.06 | 51.57 | 49.00 | 57.00 | |||||||||||||
1973 | 47.19 | 52.54 | 51.97 | 55.07 | 58.71 | 62.47 | 63.84 | 65.39 | 63.33 | 58.94 | 53.87 | 49.32 | 56.89 | |||||||||||||
1974 | 49.77 | 48.43 | 53.39 | 54.87 | 58.52 | 61.63 | 66.26 | 65.35 | 65.37 | 61.00 | 53.40 | 46.87 | 57.07 | |||||||||||||
1975 | 46.26 | 48.96 | 51.26 | 53.33 | 57.10 | 60.27 | 64.29 | 63.61 | 65.43 | 59.23 | 51.27 | 47.94 | 55.75 | |||||||||||||
1976 | 47.81 | 52.69 | 52.84 | 55.30 | 60.35 | 63.80 | 67.26 | 66.94 | 69.63 | 64.45 | 57.10 | 50.00 | 59.01 | |||||||||||||
1977 | 52.42 | 52.00 | 50.13 | 55.63 | 57.45 | 61.90 | 66.29 | 69.16 | 67.67 | 63.58 | 56.10 | 57.58 | 59.16 | |||||||||||||
1978 | 54.94 | 54.39 | 58.32 | 58.20 | 61.77 | 65.17 | 66.45 | 68.29 | 67.47 | 65.19 | 54.97 | 46.55 | 60.14 | |||||||||||||
1979 | 50.77 | 49.64 | 53.84 | 57.27 | 60.68 | 64.03 | 66.58 | 68.97 | 69.87 | 63.00 | 53.33 | 50.00 | 59.00 | |||||||||||||
1980 | 54.87 | 56.31 | 54.81 | 57.53 | 60.00 | 62.47 | 67.39 | 69.68 | 66.17 | 60.52 | 53.40 | 50.97 | 59.51 | |||||||||||||
1981 | 54.29 | 53.50 | 55.45 | 59.53 | 63.23 | 67.70 | 70.13 | 70.55 | 68.57 | 61.35 | 56.33 | 52.19 | 61.07 | |||||||||||||
1982 | 49.19 | 54.14 | 53.81 | 57.57 | 61.71 | 62.97 | 66.61 | 68.71 | 67.30 | 61.35 | 53.67 | 49.00 | 58.84 | |||||||||||||
1983 | 51.97 | 54.57 | 56.71 | 55.97 | 61.19 | 64.23 | 67.26 | 72.03 | 71.53 | 66.55 | 58.07 | 54.03 | 61.18 | |||||||||||||
1984 | 52.84 | 51.69 | 56.77 | 58.53 | 63.03 | 66.10 | 72.58 | 72.87 | 74.03 | 63.06 | 55.30 | 50.42 | 61.44 | |||||||||||||
1985 | 49.32 | 49.50 | 52.90 | 57.77 | 61.00 | 64.10 | 70.19 | 66.87 | 63.93 | 61.65 | 53.67 | 47.77 | 58.22 | |||||||||||||
1986 | 51.58 | 52.07 | 54.13 | 56.03 | 59.23 | 62.57 | 64.32 | 66.10 | 61.93 | 59.06 | 53.47 | 48.55 | 57.42 | |||||||||||||
1987 | 46.58 | 49.89 | 51.97 | 56.57 | 60.26 | 61.57 | 62.45 | 65.13 | 64.40 | 63.42 | 53.90 | 45.81 | 56.83 | |||||||||||||
1988 | 47.61 | 50.45 | 53.13 | 55.47 | 57.97 | 60.13 | 65.74 | 66.23 | 64.03 | 61.87 | 52.83 | 47.55 | 56.92 | |||||||||||||
1989 | 44.87 | 49.43 | 53.19 | 59.10 | 58.61 | 61.07 | 64.84 | 66.32 | 63.30 | 60.00 | 53.43 | 47.55 | 56.81 | |||||||||||||
1990 | 47.00 | 47.14 | 52.55 | 58.13 | 59.10 | 62.97 | 66.74 | 66.81 | 66.03 | 60.32 | 53.13 | 45.48 | 57.12 | |||||||||||||
1991 | 49.16 | 51.39 | 50.13 | 55.37 | 56.52 | 59.43 | 62.94 | 63.94 | 64.03 | 61.35 | 52.30 | 49.10 | 56.30 | |||||||||||||
1992 | 46.74 | 53.41 | 55.03 | 60.47 | 63.52 | 62.80 | 66.61 | 69.39 | 65.73 | 62.29 | 52.07 | 46.74 | 58.73 | |||||||||||||
1993 | 50.19 | 51.71 | 54.29 | 57.13 | 60.48 | 63.20 | 65.55 | 65.26 | 63.13 | 60.58 | 52.47 | 47.19 | 57.60 | |||||||||||||
1994 | 47.29 | 48.86 | 53.77 | 55.67 | 57.68 | 62.40 | 64.87 | 68.10 | 66.27 | 59.55 | 47.07 | 47.74 | 56.60 | |||||||||||||
1995 | 51.10 | 54.68 | 54.00 | 54.43 | 57.23 | 59.70 | 63.03 | 65.32 | 65.47 | 61.23 | 55.93 | 51.03 | 57.76 | |||||||||||||
1996 | 49.84 | 53.41 | 54.00 | 57.63 | 62.39 | 63.33 | 65.65 | 67.94 | 66.60 | 58.97 | 54.13 | 50.52 | 58.70 | |||||||||||||
1997 | 51.74 | 50.32 | 54.19 | 56.97 | 63.81 | 64.07 | 64.97 | 68.13 | 69.17 | 61.71 | 56.70 | 48.39 | 59.18 | |||||||||||||
1998 | 52.26 | 51.71 | 53.45 | 53.83 | 58.55 | 61.57 | 64.26 | 67.61 | 66.20 | 59.71 | 52.77 | 46.94 | 57.40 | |||||||||||||
1999 | 49.84 | 50.57 | 52.97 | 53.13 | 56.61 | 58.67 | 64.16 | 63.29 | 62.47 | 59.84 | 53.60 | 47.94 | 56.09 | |||||||||||||
2000 | 50.58 | 52.66 | 52.55 | 57.00 | 60.03 | 63.87 | 64.77 | 67.71 | 65.40 | 60.74 | 50.77 | 49.26 | 57.94 | |||||||||||||
2001 | 47.23 | 48.00 | 54.06 | 53.43 | 59.81 | 63.17 | 64.97 | 65.61 | 63.23 | 61.55 | 55.80 | 47.58 | 57.04 | |||||||||||||
2002 | 48.29 | 48.75 | 51.68 | 55.37 | 57.58 | 60.70 | 63.84 | 64.29 | 64.60 | 60.00 | 55.40 | 49.84 | 56.69 | |||||||||||||
2003 | 51.97 | 53.43 | 53.97 | 54.50 | 57.87 | 60.93 | 65.68 | 67.90 | 65.73 | 62.32 | 54.17 | 49.19 | 58.14 | |||||||||||||
2004 | 49.87 | 49.66 | 56.81 | 59.27 | 63.19 | 64.60 | 67.61 | 66.74 | 67.13 | 60.97 | 53.13 | 50.35 | 59.11 | |||||||||||||
2005 | 51.71 | 54.14 | 55.68 | 55.70 | 60.68 | 62.43 | 65.45 | 66.42 | 62.87 | 60.42 | 55.03 | 51.42 | 58.50 | |||||||||||||
2006 | 48.84 | 50.50 | 51.77 | 56.43 | 60.74 | 65.80 | 71.35 | 68.68 | 64.83 | 59.84 | 56.23 | 47.35 | 58.53 | |||||||||||||
2007 | 45.81 | 50.57 | 53.26 | 55.33 | 58.68 | 60.97 | 65.65 | 68.84 | 64.47 | 59.87 | 55.60 | 46.84 | 57.16 | |||||||||||||
2008 | 47.71 | 48.34 | 51.94 | 55.03 | 58.26 | 61.63 | 65.52 | 67.87 | 66.37 | 59.94 | 56.37 | 50.26 | 57.44 | |||||||||||||
2009 | 50.39 | 50.43 | 53.39 | 56.73 | 60.16 | 62.33 | 65.77 | 67.00 | 66.73 | 59.35 | 53.00 | 49.90 | 57.93 | |||||||||||||
2010 | 49.97 | 51.64 | 53.16 | 54.47 | 57.58 | 60.23 | 62.29 | 63.16 | 63.30 | 63.23 | 54.33 | 51.90 | 57.11 | |||||||||||||
2011 | 51.29 | 50.18 | 54.52 | 58.03 | 59.29 | 61.10 | 65.65 | 64.55 | 63.97 | 59.45 | 52.97 | 46.90 | 57.32 | |||||||||||||
2012 | 49.03 | 50.93 | 52.00 | 55.07 | 59.71 | 61.17 | 64.39 | 69.00 | 68.77 | 62.61 | 55.57 | 51.90 | 58.35 | |||||||||||||
2013 | 47.10 | 48.61 | 54.32 | 56.83 | 61.29 | 62.53 | 66.16 | 65.65 | 65.70 | 59.45 | 56.67 | 50.23 | 57.88 | |||||||||||||
2014 | 52.03 | 54.32 | 58.29 | 58.90 | 63.13 | 64.23 | 69.03 | 69.06 | 70.13 | 65.03 | 56.97 | 53.74 | 61.24 | |||||||||||||
2015 | 52.19 | 55.75 | 58.94 | 59.60 | 59.84 | 64.27 | 67.71 | 69.65 | 71.37 | 68.00 | 54.60 | 49.71 | 60.97 | |||||||||||||
2016 | 51.58 | 53.41 | 56.65 | 58.97 | 61.16 | 64.13 | 65.97 | 67.90 | 66.00 | 63.65 | 56.97 | 51.52 | 59.82 | |||||||||||||
2017 | 51.35 | 53.89 | 55.35 | 58.27 | 59.97 | 62.23 | 68.55 | 68.45 | 67.00 | 63.58 | 57.63 | 49.61 | 59.66 | |||||||||||||
2018 | 53.10 | 51.50 | 54.32 | 57.27 | 59.29 | 63.23 | 69.74 | 72.97 | 67.10 | 62.94 | 57.23 | 51.94 | 60.05 | |||||||||||||
2019 | 51.10 | 48.89 | 54.32 | 58.73 | 59.45 | 62.43 | 65.45 | 66.58 | 66.47 | 57.35 | 54.27 | 50.61 | 57.97 | |||||||||||||
2020 | 49.29 | 50.90 | 55.48 | 58.97 | 63.45 | 63.27 | 66.16 | 68.32 | 66.47 | 63.13 | 52.97 | 46.84 | 58.77 | |||||||||||||
2021 | 48.13 | 50.32 | 51.29 | 57.57 | 60.58 | 63.60 | 68.68 | 68.71 | 67.30 | 58.42 | 55.37 | 48.97 | 58.24 | |||||||||||||
2022 | 46.90 | 45.14 | 51.32 | 55.27 | 57.26 | 61.83 | 65.42 | 69.32 | 69.33 | 62.39 | 48.80 | 47.68 | 56.72 | |||||||||||||
2023 | 47.97 | 46.07 | 50.35 | 54.20 | 58.48 | 60.97 | 65.23 | 66.68 | 66.13 | 60.16 | 50.83 | 50.10 | 56.43 | |||||||||||||
2024 | 47.65 | 51.62 | 53.26 | 54.63 | 58.97 | 62.97 | 67.03 | 68.26 | 66.87 | 60.06 | 50.07 | ----- | z | 58.31 | a | |||||||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 48.68 | 50.16 | 52.58 | 55.50 | 58.83 | 61.57 | 65.12 | 66.54 | 65.03 | 60.27 | 53.37 | 48.89 | 57.21 | |||||||||||||
S.D. | 2.86 | 2.86 | 2.56 | 2.25 | 2.18 | 2.09 | 2.37 | 2.38 | 2.75 | 2.39 | 2.36 | 2.23 | 1.86 | |||||||||||||
SKEW | -0.23 | -0.11 | 0.04 | -0.00 | 0.40 | 0.24 | 0.52 | 0.24 | 0.58 | 0.62 | -0.22 | 0.78 | 0.22 | |||||||||||||
MAX | 54.94 | 56.31 | 58.94 | 60.47 | 63.81 | 67.70 | 72.58 | 72.97 | 74.03 | 68.00 | 58.07 | 57.58 | 61.44 | |||||||||||||
MIN | 39.45 | 44.52 | 47.26 | 49.93 | 54.74 | 57.50 | 60.03 | 61.45 | 60.17 | 55.13 | 47.07 | 44.58 | 52.95 | |||||||||||||
YRS | 85 | 85 | 85 | 85 | 85 | 85 | 86 | 86 | 86 | 86 | 86 | 85 | 84 |