YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1930 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 58.85 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 58.85 | k | |
1931 | 51.63 | 53.70 | 55.15 | 57.08 | 61.95 | 61.43 | 61.15 | 60.10 | 62.20 | 57.71 | 49.22 | 47.32 | 56.55 | |||||||||||||
1932 | 45.92 | 48.83 | 53.18 | 52.12 | 56.52 | 58.63 | 58.94 | 60.50 | 64.33 | 60.24 | 59.23 | 46.87 | 55.44 | |||||||||||||
1933 | 46.61 | 48.43 | 53.44 | 53.72 | 54.16 | 58.30 | 60.79 | 62.85 | 60.23 | 62.66 | 57.60 | 51.58 | 55.86 | |||||||||||||
1934 | 52.08 | 55.18 | 60.15 | 59.53 | 61.56 | 60.81 | a | 62.68 | 64.02 | 64.27 | 60.55 | 57.20 | 51.10 | 59.09 | ||||||||||||
1935 | 50.18 | 52.52 | 50.85 | 57.02 | 59.02 | 60.62 | b | 61.18 | 61.42 | 61.30 | 58.58 | 52.88 | 51.06 | 56.39 | ||||||||||||
1936 | 51.81 | 51.79 | 54.23 | 56.42 | 59.82 | 62.35 | 61.08 | 62.15 | 63.12 | 62.02 | 57.18 | 49.52 | 57.62 | |||||||||||||
1937 | 42.85 | 49.09 | 53.97 | 53.88 | 57.60 | 63.30 | 64.03 | 63.50 | 64.77 | 63.84 | 56.80 | 53.48 | 57.26 | |||||||||||||
1938 | 52.00 | 52.07 | 52.03 | 55.75 | 58.90 | 60.68 | 63.44 | 63.13 | 63.20 | 61.16 | 54.35 | 52.97 | 57.47 | |||||||||||||
1939 | 49.98 | 47.52 | 51.82 | 56.22 | 57.02 | 58.38 | 60.45 | 61.95 | 66.12 | 61.19 | 56.95 | 52.98 | 56.72 | |||||||||||||
1940 | 54.24 | 54.29 | 55.92 | 56.98 | 58.74 | 60.47 | 62.08 | 61.44 | 64.98 | 60.31 | 55.48 | 55.00 | 58.33 | |||||||||||||
1941 | 52.10 | 54.48 | 55.47 | 54.68 | 61.52 | 60.64 | a | 62.79 | 63.05 | a | 62.70 | 58.05 | 57.37 | 52.19 | 57.92 | |||||||||||
1942 | 52.26 | 49.93 | 52.11 | 55.02 | 56.25 | a | 58.82 | 62.18 | 60.98 | 61.50 | 59.06 | 54.53 | 50.79 | 56.12 | ||||||||||||
1943 | 50.05 | 53.82 | 54.58 | 55.22 | 58.44 | 58.87 | 61.44 | 61.15 | 63.22 | 59.35 | 57.07 | 50.56 | 56.98 | |||||||||||||
1944 | 50.16 | 49.10 | 53.00 | 51.92 | 58.21 | 60.08 | 61.18 | 60.76 | 60.70 | 61.74 | 53.82 | b | 53.19 | 56.16 | ||||||||||||
1945 | 50.56 | 51.84 | 51.66 | 53.13 | 57.23 | 61.25 | 63.23 | 61.47 | 63.33 | 61.95 | 55.93 | 53.47 | 57.09 | |||||||||||||
1946 | 50.18 | 48.96 | 50.95 | 55.17 | 58.92 | a | ----- | z | ----- | z | 61.26 | 64.75 | 59.29 | 51.93 | h | 50.94 | 55.60 | c | ||||||||
1947 | 48.42 | 54.14 | 56.60 | 58.93 | 59.97 | 63.68 | 62.19 | 64.55 | 63.85 | 61.97 | 52.57 | 50.19 | 58.09 | |||||||||||||
1948 | 54.35 | ----- | z | 51.65 | 55.30 | 57.11 | 61.95 | 62.11 | 62.73 | a | 62.03 | 60.87 | 55.00 | 46.60 | 57.25 | a | ||||||||||
1949 | 42.23 | 48.20 | 52.97 | 57.38 | 58.08 | 60.87 | 60.87 | 62.26 | 64.57 | 58.19 | 61.13 | 48.97 | 56.31 | |||||||||||||
1950 | 45.85 | 52.09 | 53.34 | 56.03 | 56.63 | 59.50 | 62.18 | 63.66 | 64.42 | 62.13 | 61.32 | 54.32 | 57.62 | |||||||||||||
1951 | 49.56 | 51.23 | 53.10 | 54.12 | 58.13 | a | 60.10 | 60.61 | 62.11 | 64.10 | 61.81 | 56.15 | 48.50 | 56.63 | ||||||||||||
1952 | 48.00 | 52.22 | 50.35 | 56.35 | 59.19 | 59.03 | 64.02 | 62.10 | 65.12 | 60.61 | 54.25 | 51.16 | 56.87 | |||||||||||||
1953 | 53.69 | 51.46 | 52.98 | 54.33 | 57.31 | 59.55 | 62.34 | 63.03 | 65.32 | 61.45 | 57.02 | 52.34 | 57.57 | |||||||||||||
1954 | 49.53 | 56.50 | 51.42 | 57.67 | 58.61 | 60.60 | 63.31 | 62.29 | 63.57 | 60.68 | 57.83 | 51.35 | 57.78 | |||||||||||||
1955 | 46.90 | 49.96 | 53.73 | 52.15 | 57.32 | 60.07 | 59.94 | 60.95 | 62.20 | 60.44 | 54.45 | 52.73 | 55.90 | |||||||||||||
1956 | 50.18 | 48.97 | 52.98 | 55.48 | 59.40 | 60.93 | 61.29 | 61.94 | 64.93 | 59.69 | 59.57 | 53.68 | 57.42 | |||||||||||||
1957 | 47.29 | 55.11 | 54.39 | 56.98 | 59.63 | 63.82 | 62.56 | 61.84 | 65.53 | 63.50 | 57.78 | 54.77 | 58.60 | |||||||||||||
1958 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1959 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1960 | 48.97 | 52.16 | 55.55 | 56.85 | 58.23 | 62.00 | 61.50 | 60.53 | 62.28 | 59.45 | 52.95 | 49.98 | 56.70 | |||||||||||||
1961 | 53.42 | 52.39 | 52.76 | 56.62 | 57.37 | 62.70 | 63.35 | 64.29 | 63.10 | 60.03 | 52.80 | 48.81 | 57.30 | |||||||||||||
1962 | 49.55 | 51.18 | 50.60 | 57.68 | 57.53 | 59.60 | 59.71 | 63.65 | 60.53 | 62.00 | 56.08 | 52.81 | 56.74 | |||||||||||||
1963 | 48.76 | 57.57 | 52.26 | 54.70 | 59.63 | 61.28 | a | 62.82 | 62.73 | 65.27 | 62.33 | a | 54.92 | 51.45 | 57.81 | |||||||||||
1964 | 48.82 | 52.10 | 52.08 | 53.82 | 56.05 | 61.67 | 62.63 | 63.05 | 62.58 | 63.73 | 52.90 | 54.00 | d | 56.95 | ||||||||||||
1965 | 51.31 | e | 49.89 | 51.89 | 55.33 | 55.68 | 58.00 | 60.79 | 64.73 | 63.17 | 64.85 | 55.67 | 47.40 | 56.56 | ||||||||||||
1966 | 48.90 | 48.88 | 54.24 | 60.55 | b | 57.37 | 60.22 | 60.87 | 61.76 | 63.00 | 61.13 | 55.25 | 49.31 | 56.79 | ||||||||||||
1967 | 49.79 | 51.84 | 50.81 | 48.37 | 57.11 | 57.77 | 61.24 | 61.26 | 64.93 | 63.11 | 57.15 | 49.82 | 56.10 | |||||||||||||
1968 | 51.82 | 55.10 | 53.24 | 54.05 | 56.19 | 59.70 | 60.81 | 63.56 | 63.10 | 59.18 | a | 54.22 | 46.50 | 56.46 | ||||||||||||
1969 | 48.31 | 47.89 | 51.24 | 53.10 | 57.48 | 59.75 | 59.85 | 59.40 | 62.78 | 59.89 | 58.17 | 52.69 | 55.88 | |||||||||||||
1970 | 53.05 | a | 53.70 | 53.88 | a | 52.05 | b | 58.71 | 59.25 | 61.37 | 60.55 | 64.60 | 58.74 | 56.40 | 48.97 | 56.77 | ||||||||||
1971 | 49.05 | 49.64 | 51.47 | 52.12 | 55.02 | 59.76 | a | 60.27 | 64.06 | 64.33 | 55.68 | 51.17 | 45.90 | 54.87 | ||||||||||||
1972 | 49.08 | 53.69 | 55.50 | 55.33 | 58.81 | 60.00 | 64.60 | 64.63 | 65.50 | 62.73 | a | 53.45 | 46.58 | 57.49 | ||||||||||||
1973 | 49.31 | 54.55 | 51.18 | 57.16 | a | 60.48 | 63.00 | a | 61.71 | 62.08 | 63.92 | 61.52 | 53.77 | 52.82 | 57.62 | |||||||||||
1974 | 50.40 | 52.25 | 55.47 | 56.37 | 58.61 | 62.60 | 64.66 | 64.71 | 64.57 | 63.48 | 56.86 | a | 48.92 | 58.24 | ||||||||||||
1975 | 50.21 | 51.77 | 52.37 | 51.42 | 58.39 | 59.95 | 61.97 | 62.73 | 62.62 | 58.11 | 52.33 | 50.11 | 56.00 | |||||||||||||
1976 | 50.55 | 49.67 | 49.82 | 53.90 | 58.65 | 62.11 | b | 62.52 | 65.55 | 63.68 | 61.76 | 58.58 | 50.79 | 57.30 | ||||||||||||
1977 | 49.27 | 53.18 | 49.31 | 54.33 | 54.35 | 58.25 | 60.44 | 63.19 | 64.03 | 60.82 | 56.87 | 54.55 | 56.55 | |||||||||||||
1978 | 54.03 | 54.43 | 58.58 | 55.48 | 61.23 | 61.93 | 63.16 | 64.31 | 66.02 | 61.26 | 53.30 | 47.89 | 58.47 | |||||||||||||
1979 | 48.65 | 50.04 | 54.60 | 56.62 | 60.94 | 61.63 | 64.15 | 64.47 | 68.20 | 62.32 | 55.22 | 52.63 | 58.29 | |||||||||||||
1980 | 52.60 | 54.33 | 52.32 | 56.07 | 56.16 | 60.78 | 64.19 | 62.81 | 63.92 | 62.02 | 56.88 | 54.68 | 58.06 | |||||||||||||
1981 | 55.77 | 54.75 | 51.82 | 54.78 | 58.19 | 64.43 | 61.73 | 61.97 | 61.77 | 58.52 | 56.15 | 50.92 | 57.57 | |||||||||||||
1982 | 45.26 | 52.23 | 50.77 | 54.62 | 56.32 | 57.78 | 58.18 | 58.73 | 62.38 | 61.82 | 53.33 | 51.00 | 55.20 | |||||||||||||
1983 | 53.55 | 55.09 | 56.10 | 56.25 | 61.15 | 64.18 | 66.32 | a | 68.69 | 70.37 | 66.40 | 55.95 | 52.34 | 60.53 | ||||||||||||
1984 | 50.52 | 53.07 | 57.84 | 56.58 | 61.98 | a | 61.67 | 65.95 | 65.26 | 69.12 | 60.95 | 53.67 | 48.66 | 58.77 | ||||||||||||
1985 | 48.10 | 51.09 | 50.34 | 58.85 | 58.39 | 63.78 | 64.38 | a | 63.44 | 63.43 | 59.50 | 51.92 | 52.31 | 57.13 | ||||||||||||
1986 | 55.32 | 55.18 | 57.50 | 56.22 | 58.32 | 62.00 | 62.37 | 63.24 | 61.32 | 61.87 | 57.25 | 51.68 | 58.52 | |||||||||||||
1987 | 49.48 | 52.91 | 54.52 | 58.78 | 60.23 | 60.42 | 61.37 | 63.69 | 63.60 | 63.85 | 55.97 | 49.69 | 57.88 | |||||||||||||
1988 | 51.60 | 55.33 | 56.85 | 58.42 | 58.98 | 61.87 | 65.16 | 64.08 | 63.22 | 61.18 | 55.27 | 49.71 | 58.47 | |||||||||||||
1989 | 48.26 | 48.38 | 56.05 | 59.80 | 59.10 | 62.47 | 61.60 | 62.44 | 62.53 | 60.53 | b | 57.97 | 53.47 | 57.71 | ||||||||||||
1990 | 50.58 | 49.79 | 54.06 | 59.42 | 59.29 | 62.17 | 64.02 | 65.02 | 64.68 | 61.66 | 55.43 | 46.60 | 57.73 | |||||||||||||
1991 | 50.87 | 56.18 | 51.34 | 54.27 | 56.48 | 58.43 | 61.97 | 64.39 | 63.70 | 61.85 | 56.93 | 51.55 | 57.33 | |||||||||||||
1992 | 51.60 | 56.72 | 56.44 | 61.13 | 62.65 | 63.00 | 65.94 | 64.16 | 64.02 | 64.50 | 56.58 | 49.40 | 59.68 | |||||||||||||
1993 | 50.85 | 52.61 | 57.71 | 57.80 | 61.95 | 63.42 | 62.67 | a | 65.07 | a | 63.60 | 64.05 | 56.37 | 51.79 | 58.99 | |||||||||||
1994 | 52.55 | 50.95 | 56.03 | 56.50 | 58.19 | 60.28 | 60.58 | 62.55 | 64.25 | 61.19 | 50.98 | 49.68 | 56.98 | |||||||||||||
1995 | 54.50 | 56.66 | 55.69 | 57.48 | 58.89 | 61.98 | 66.08 | l | 64.94 | 65.00 | 62.48 | 60.43 | 54.15 | 59.29 | a | |||||||||||
1996 | 53.55 | 56.34 | 56.81 | 60.80 | c | 61.45 | 61.36 | a | 64.47 | 62.81 | b | 62.20 | 60.86 | b | 56.27 | 53.44 | 59.20 | |||||||||
1997 | 52.52 | 52.52 | 55.97 | 57.42 | 63.66 | 61.88 | 62.97 | 66.95 | 68.12 | 61.97 | 58.60 | 50.63 | 59.43 | |||||||||||||
1998 | 53.47 | 51.70 | 54.47 | 55.63 | 57.79 | 61.58 | 62.84 | 65.16 | 64.22 | 58.60 | 54.85 | 47.10 | b | 57.28 | ||||||||||||
1999 | 50.34 | 50.20 | 49.89 | 53.73 | 55.31 | 58.57 | 61.65 | 63.47 | 62.46 | c | 61.75 | a | 56.03 | a | 50.85 | 56.19 | ||||||||||
2000 | 51.66 | 53.91 | 53.39 | 57.87 | 60.48 | 62.38 | 60.95 | 62.02 | 64.33 | 59.26 | 51.35 | 52.77 | 57.53 | |||||||||||||
2001 | 48.97 | 50.88 | 55.77 | 52.82 | 61.58 | 62.47 | 62.23 | 62.24 | 61.97 | 60.66 | 56.53 | 50.77 | 57.24 | |||||||||||||
2002 | 47.27 | 53.68 | 52.63 | 55.58 | 56.90 | 59.87 | 61.82 | 62.92 | 63.37 | 59.27 | 58.10 | 51.60 | 56.92 | |||||||||||||
2003 | 55.73 | 51.64 | 54.76 | 53.50 | 58.35 | 61.80 | 63.16 | 65.89 | 65.95 | 62.16 | 52.80 | 51.76 | 58.12 | |||||||||||||
2004 | 50.13 | 51.26 | 59.39 | 58.52 | 59.95 | 61.65 | 63.47 | 64.66 | 64.88 | 59.27 | 53.37 | 51.50 | a | 58.17 | ||||||||||||
2005 | 51.69 | 54.38 | 56.55 | 55.28 | 60.44 | 61.10 | 63.32 | 62.66 | 61.53 | 59.52 | 58.05 | 52.97 | 58.12 | |||||||||||||
2006 | 51.15 | 53.14 | 49.81 | 55.42 | 59.73 | 63.10 | 64.81 | 63.05 | 61.90 | 60.06 | 54.82 | 49.94 | 57.24 | |||||||||||||
2007 | 46.63 | 51.27 | 55.48 | 55.48 | 57.74 | 60.27 | 63.27 | 64.23 | 64.10 | 59.71 | 56.22 | 48.27 | 56.89 | |||||||||||||
2008 | 49.26 | 51.50 | 53.58 | 55.22 | 58.48 | 60.50 | a | 62.58 | 63.42 | 64.20 | 62.53 | 58.60 | 49.02 | 57.41 | ||||||||||||
2009 | 53.40 | 52.43 | 52.95 | 56.53 | 58.85 | 62.00 | 61.90 | 64.26 | 64.47 | 60.11 | 54.87 | 49.65 | 57.62 | |||||||||||||
2010 | 52.79 | 53.41 | 53.89 | 54.65 | 56.73 | 61.27 | 61.11 | 61.62 | a | 64.50 | 61.60 | 55.00 | 52.94 | 57.46 | ||||||||||||
2011 | 53.50 | 50.52 | 55.06 | 56.22 | 58.05 | 60.92 | 63.03 | 62.61 | 64.17 | 63.58 | 54.40 | 49.95 | 57.67 | |||||||||||||
2012 | 52.50 | 53.12 | 54.85 | 57.75 | 59.06 | 61.33 | 62.42 | 63.00 | 62.22 | a | 63.92 | 60.95 | 50.13 | 58.44 | ||||||||||||
2013 | 49.77 | 50.27 | 55.79 | 57.62 | 60.39 | 62.27 | 62.90 | 64.82 | 65.87 | 59.97 | 56.82 | 51.73 | 58.18 | |||||||||||||
2014 | 57.11 | 54.72 | a | 58.42 | 59.07 | 61.65 | 60.98 | 64.98 | 65.90 | 65.95 | 66.16 | 60.72 | 56.52 | 61.02 | ||||||||||||
2015 | 57.32 | 59.73 | 61.61 | 59.02 | 59.29 | 62.40 | 66.44 | 68.37 | 67.92 | 66.37 | 53.78 | 49.08 | 60.94 | |||||||||||||
2016 | 53.27 | 58.28 | 57.06 | 59.72 | 59.95 | 62.40 | 61.89 | 63.05 | 63.80 | 61.85 | 57.42 | 50.48 | 59.10 | |||||||||||||
2017 | 50.37 | 53.96 | 57.05 | 58.65 | 60.44 | 62.66 | a | 62.69 | 65.03 | 68.60 | 62.87 | 58.55 | 53.68 | 59.55 | ||||||||||||
2018 | 55.53 | 53.20 | 54.74 | 57.28 | 59.15 | 61.75 | 64.03 | 63.18 | 61.83 | 62.10 | 57.70 | 52.73 | 58.60 | |||||||||||||
2019 | 53.84 | 49.82 | 55.42 | 59.68 | 59.68 | 67.03 | 63.03 | 65.97 | 66.63 | 61.45 | 56.20 | 53.06 | 59.32 | |||||||||||||
2020 | 51.47 | 53.72 | 54.03 | 57.05 | a | 62.79 | 64.90 | 64.82 | 67.36 | b | 66.80 | 66.08 | 56.53 | 52.84 | 59.87 | |||||||||||
2021 | 53.62 | a | 53.64 | 53.68 | 56.88 | 58.94 | 63.36 | b | 63.58 | f | 65.71 | l | 65.53 | 62.71 | 61.38 | 51.50 | 58.12 | b | ||||||||
2022 | 54.92 | 55.57 | 56.53 | 58.38 | 60.52 | a | 65.45 | 64.90 | 67.69 | 70.12 | 61.53 | 53.95 | 51.60 | 60.10 | ||||||||||||
2023 | 51.65 | 49.62 | 52.50 | 56.62 | 60.37 | 62.30 | 64.48 | 67.21 | 64.13 | 64.79 | 58.63 | 54.97 | 58.94 | |||||||||||||
2024 | 53.21 | b | 53.76 | 55.50 | d | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 54.16 | i | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 50.87 | 52.49 | 54.04 | 56.09 | 58.78 | 61.25 | 62.45 | 63.32 | 64.10 | 61.37 | 55.94 | 51.08 | 57.63 | |||||||||||||
S.D. | 2.83 | 2.51 | 2.49 | 2.32 | 1.93 | 1.78 | 1.69 | 1.90 | 1.98 | 2.02 | 2.46 | 2.29 | 1.24 | |||||||||||||
SKEW | -0.32 | 0.23 | 0.40 | -0.31 | 0.06 | 0.30 | 0.13 | 0.46 | 0.89 | 0.24 | -0.02 | -0.23 | 0.48 | |||||||||||||
MAX | 57.32 | 59.73 | 61.61 | 61.13 | 63.66 | 67.03 | 66.44 | 68.69 | 70.37 | 66.40 | 61.38 | 56.52 | 61.02 | |||||||||||||
MIN | 42.23 | 47.52 | 49.31 | 48.37 | 54.16 | 57.77 | 58.18 | 58.73 | 60.23 | 55.68 | 49.22 | 45.90 | 54.87 | |||||||||||||
YRS | 92 | 91 | 92 | 91 | 91 | 90 | 89 | 90 | 91 | 91 | 90 | 91 | 87 |