YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1932 | ----- | z | ----- | z | ----- | z | ----- | z | 55.23 | 61.43 | 62.35 | 64.34 | 60.35 | 54.53 | 52.68 | 40.48 | 56.43 | d | ||||||||
1933 | 41.89 | 43.65 | a | 47.87 | a | 50.86 | b | 51.05 | 59.98 | 62.81 | 64.03 | 58.07 | 58.02 | 49.62 | 48.74 | 53.05 | ||||||||||
1934 | 49.20 | a | 50.02 | 56.73 | 56.32 | 58.69 | 59.58 | 63.19 | 65.26 | 60.22 | 57.44 | 51.85 | 46.38 | a | 56.24 | |||||||||||
1935 | 44.00 | 48.25 | 44.58 | 51.23 | 54.11 | 61.21 | a | 62.80 | c | 64.00 | 63.75 | 54.08 | a | 46.45 | 45.95 | a | 53.37 | |||||||||
1936 | 46.69 | 46.59 | 47.58 | 54.05 | 58.33 | a | 62.52 | 64.90 | 64.68 | 60.72 | 56.76 | 44.75 | 44.52 | 54.34 | ||||||||||||
1937 | 35.53 | 43.09 | a | 48.82 | i | 48.83 | a | 55.29 | 61.02 | 63.65 | 63.52 | 61.97 | 59.21 | 52.30 | c | 48.55 | 53.90 | a | ||||||||
1938 | 46.08 | a | 45.46 | 45.79 | 52.65 | 56.90 | 61.58 | 66.07 | b | 64.05 | 63.16 | e | 54.95 | 47.41 | a | 45.85 | 54.16 | |||||||||
1939 | 44.45 | 43.14 | 49.35 | 55.92 | 59.82 | 60.65 | g | 67.48 | 68.03 | k | 63.92 | 57.10 | 50.17 | 49.11 | 54.05 | b | ||||||||||
1940 | 47.02 | 48.55 | a | 51.26 | 53.23 | 58.08 | 61.98 | 64.76 | 66.07 | a | 62.88 | 58.26 | 48.25 | b | 46.18 | 55.54 | ||||||||||
1941 | 47.74 | 50.61 | 50.81 | 50.98 | 59.17 | b | 61.24 | a | 67.50 | c | 65.08 | a | 60.72 | 55.45 | 51.53 | a | 46.44 | 55.61 | ||||||||
1942 | 45.87 | 43.96 | b | 46.40 | b | 51.44 | e | 55.55 | 59.95 | 67.47 | 67.05 | 62.12 | 56.85 | 49.71 | a | 47.45 | a | 54.48 | ||||||||
1943 | 42.83 | a | 48.70 | 49.82 | 53.47 | a | 54.90 | 59.63 | 64.37 | 63.60 | 65.10 | 56.47 | 50.24 | a | 43.93 | a | 54.42 | |||||||||
1944 | 45.80 | d | 44.36 | 47.37 | 50.08 | 54.73 | 58.87 | 63.48 | 64.66 | 62.28 | a | 58.63 | 46.47 | 46.62 | a | 53.61 | ||||||||||
1945 | 46.45 | 46.55 | 45.26 | 50.32 | 56.10 | a | 58.53 | a | 63.32 | 62.87 | 60.05 | 54.52 | 47.88 | 45.92 | 53.15 | |||||||||||
1946 | 44.05 | a | 44.59 | 46.71 | 49.55 | 56.00 | 57.77 | 63.31 | 62.18 | 58.53 | 50.67 | a | 44.33 | a | 43.45 | 51.76 | ||||||||||
1947 | 39.03 | 47.91 | 49.74 | 52.90 | 56.06 | 57.60 | 61.50 | a | 60.37 | 60.60 | 55.89 | 49.45 | a | 46.68 | 53.14 | |||||||||||
1948 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 61.34 | 62.34 | 59.22 | 54.44 | 46.70 | 40.18 | 54.03 | f | ||||||
1949 | 35.26 | 43.07 | 47.61 | 52.85 | 56.27 | 58.45 | 60.98 | 62.34 | 60.92 | 50.42 | 52.38 | a | 42.52 | 51.92 | ||||||||||||
1950 | 38.69 | 46.17 | a | 47.00 | 50.52 | 53.37 | 58.93 | 63.69 | 65.56 | 60.52 | 56.10 | 51.55 | 50.21 | 53.53 | ||||||||||||
1951 | 43.00 | 46.30 | 44.79 | 51.08 | 55.08 | 60.23 | 63.65 | 62.73 | 62.22 | 55.42 | 49.32 | 41.72 | a | 52.96 | ||||||||||||
1952 | 41.11 | 45.33 | 44.81 | 50.40 | 54.11 | 56.65 | 64.13 | 63.27 | 63.05 | a | 58.33 | a | 44.23 | 44.71 | 52.51 | |||||||||||
1953 | 49.34 | 45.71 | 46.60 | 50.37 | 52.44 | 56.15 | 62.48 | a | 63.19 | 62.85 | 55.24 | 51.85 | 46.24 | 53.54 | ||||||||||||
1954 | 44.05 | 48.45 | 46.45 | 50.68 | 54.68 | 55.36 | a | 61.39 | 61.69 | 60.32 | 54.50 | 51.32 | 44.19 | 52.76 | ||||||||||||
1955 | 42.58 | 43.04 | 45.27 | 46.23 | 52.55 | a | 57.53 | 60.02 | 61.69 | 59.72 | a | 55.23 | 47.93 | 45.69 | 51.46 | |||||||||||
1956 | 43.87 | 40.40 | 46.42 | 51.71 | a | 56.18 | 57.50 | 63.60 | 62.84 | 60.38 | 53.39 | 47.57 | 44.38 | a | 52.35 | |||||||||||
1957 | 38.66 | b | 47.88 | 48.98 | 51.50 | 56.50 | 60.30 | 62.03 | 63.10 | 63.88 | 54.69 | 46.77 | 45.69 | 53.33 | ||||||||||||
1958 | 47.63 | 50.91 | 46.50 | 51.60 | 58.24 | 61.60 | 66.19 | 66.26 | 62.03 | 58.08 | 51.10 | a | 50.72 | a | 55.91 | |||||||||||
1959 | 47.02 | a | 44.89 | a | 48.21 | 52.43 | a | 53.81 | 59.70 | 63.35 | 62.53 | 59.70 | 57.40 | 49.08 | 43.82 | 53.50 | ||||||||||
1960 | 43.68 | 45.90 | 49.79 | 51.70 | 53.45 | 60.52 | 62.87 | 62.32 | 61.16 | a | 55.08 | 47.85 | 44.95 | 53.27 | ||||||||||||
1961 | 47.74 | 48.20 | a | 48.07 | a | 49.90 | 53.06 | 60.32 | 63.71 | 66.16 | 58.75 | 55.37 | 46.93 | h | 44.87 | e | 54.20 | a | ||||||||
1962 | 41.48 | 44.96 | 46.87 | a | 54.08 | 52.55 | a | 57.93 | 62.11 | 63.21 | 62.93 | 54.67 | a | 50.17 | j | ----- | z | 54.08 | b | |||||||
1963 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 55.45 | 49.23 | 45.50 | 50.06 | i | |||
1964 | 43.53 | 43.21 | a | 45.94 | 48.57 | 53.10 | 58.87 | 63.79 | 63.87 | 59.77 | 57.50 | 46.70 | 44.68 | 52.46 | ||||||||||||
1965 | 44.11 | 45.52 | 48.94 | 52.12 | b | 53.90 | 58.83 | 64.52 | 66.77 | a | 60.12 | 58.44 | 50.35 | 41.11 | 53.73 | |||||||||||
1966 | 43.13 | 43.79 | 46.39 | 53.92 | 54.50 | 60.64 | a | 63.23 | 64.13 | 63.37 | 54.45 | 49.17 | 45.58 | 53.52 | ||||||||||||
1967 | 44.47 | a | 45.36 | 44.97 | 46.22 | 55.76 | 62.83 | 65.73 | 67.74 | 64.72 | 55.71 | 50.23 | 41.58 | a | 53.78 | |||||||||||
1968 | 41.89 | 50.88 | 49.32 | 49.35 | 55.08 | 61.05 | 65.08 | 64.70 | a | 62.15 | 54.79 | 49.53 | 43.24 | 53.92 | ||||||||||||
1969 | 39.95 | 41.50 | 47.48 | 49.41 | a | 57.98 | 61.95 | 63.23 | 62.74 | 61.82 | 53.56 | 48.45 | 45.87 | 52.83 | ||||||||||||
1970 | 46.00 | 48.68 | 48.19 | 47.55 | 55.08 | 61.83 | 64.29 | 63.10 | 57.87 | 52.79 | 50.02 | 42.23 | 53.14 | |||||||||||||
1971 | 41.16 | 45.04 | 44.81 | 48.32 | 53.85 | 58.65 | 63.58 | 65.58 | 59.57 | 51.48 | 46.10 | 40.61 | 51.56 | |||||||||||||
1972 | 40.45 | 45.83 | 50.76 | 48.60 | 56.42 | 60.80 | 66.47 | 65.35 | 59.10 | 53.84 | 48.45 | 39.92 | 53.00 | |||||||||||||
1973 | 42.37 | 46.98 | 45.32 | 52.00 | 57.15 | 61.40 | 64.56 | 61.79 | 61.92 | 53.56 | 46.83 | 47.48 | 53.45 | |||||||||||||
1974 | 40.73 | 43.46 | 47.94 | 49.75 | 54.65 | 59.82 | 64.18 | 65.40 | 63.87 | 54.65 | 49.43 | 44.58 | 53.20 | |||||||||||||
1975 | 44.71 | 44.29 | 45.66 | 46.00 | 55.84 | c | 59.83 | 64.19 | 62.48 | 62.97 | 54.42 | 45.78 | 45.73 | a | 52.66 | |||||||||||
1976 | 44.81 | 43.52 | b | 45.28 | a | 48.20 | 55.19 | 57.38 | 63.76 | 63.47 | 62.40 | 56.31 | 51.75 | 42.34 | 52.87 | |||||||||||
1977 | 42.18 | a | 48.74 | a | 44.65 | a | 51.88 | 52.15 | 61.43 | 63.11 | 67.50 | a | 60.15 | 55.89 | 48.02 | 47.56 | 53.61 | |||||||||
1978 | 47.32 | 48.12 | 52.15 | 50.43 | 54.42 | a | 62.33 | 65.26 | 65.15 | 59.68 | 57.30 | a | 45.12 | 39.89 | 53.93 | |||||||||||
1979 | 41.00 | a | 44.62 | 50.55 | a | 51.22 | 55.92 | 60.47 | 64.77 | 64.15 | 64.28 | a | 58.03 | 47.70 | 46.89 | 54.13 | ||||||||||
1980 | 42.15 | 49.29 | 46.47 | 51.15 | 54.42 | 57.55 | 64.70 | a | 62.77 | a | 61.53 | a | 56.48 | 50.43 | a | 46.74 | 53.64 | |||||||||
1981 | 47.78 | a | 46.71 | 48.71 | 51.70 | 56.10 | 60.78 | 64.15 | 65.71 | 61.58 | 53.74 | b | 48.84 | a | 46.59 | b | 54.37 | |||||||||
1982 | 40.96 | e | 44.68 | c | 45.95 | b | 48.03 | a | 55.08 | 59.87 | 62.05 | a | 63.42 | a | 60.98 | a | 55.39 | c | 45.83 | d | 43.60 | b | 52.15 | |||
1983 | 44.63 | d | 48.32 | c | 49.85 | a | 48.84 | a | 56.97 | a | 59.68 | 62.37 | 64.92 | 60.37 | 56.00 | d | 49.56 | e | 44.17 | a | 53.81 | |||||
1984 | 46.29 | e | 46.50 | c | 50.37 | 48.98 | b | 55.18 | a | 58.86 | a | 64.55 | 64.55 | 61.39 | b | 53.05 | a | 47.69 | a | 41.57 | c | 53.25 | ||||
1985 | 43.42 | e | 44.15 | b | 44.52 | b | 52.95 | b | 55.42 | 61.25 | 67.48 | 63.92 | 60.13 | 54.20 | c | 43.33 | c | 42.71 | b | 52.79 | ||||||
1986 | 47.83 | b | 49.54 | b | 52.02 | a | 50.87 | 56.08 | 63.42 | 64.39 | c | 66.35 | 59.07 | b | 57.22 | a | 50.22 | c | 45.54 | e | 55.21 | |||||
1987 | 43.50 | f | 46.26 | a | 49.08 | 54.76 | a | 59.05 | b | 61.60 | a | 62.66 | b | 66.33 | a | 61.57 | i | 58.98 | d | 49.56 | c | 42.07 | c | 55.04 | b | |
1988 | 43.00 | e | 48.29 | c | 48.62 | b | 52.89 | c | 53.90 | b | 59.45 | 65.37 | a | 64.28 | b | 61.98 | d | 60.07 | b | 48.90 | 41.80 | h | 55.16 | a | ||
1989 | 42.86 | f | 39.48 | f | 47.74 | d | 55.22 | c | 55.58 | a | 61.50 | a | 63.37 | 64.52 | b | 62.91 | b | 55.22 | f | 48.73 | b | 43.69 | 55.92 | c | ||
1990 | 45.13 | a | 42.65 | d | 49.56 | e | 54.43 | a | 55.73 | 59.50 | 66.63 | a | 66.00 | a | 65.00 | a | 54.35 | a | 47.80 | 37.84 | b | 53.72 | ||||
1991 | 41.52 | a | 52.02 | a | 45.83 | a | 50.23 | 53.48 | 58.05 | 66.30 | a | 66.38 | a | 65.43 | a | 58.23 | 50.64 | a | 43.52 | a | 54.30 | |||||
1992 | 46.66 | b | 50.68 | a | ----- | z | 55.30 | c | 62.09 | i | 63.43 | 65.76 | 66.20 | a | 62.19 | a | 58.10 | 49.12 | a | 41.58 | 55.90 | b | ||||
1993 | 41.13 | a | 43.95 | 53.43 | b | 51.50 | 58.26 | 59.95 | 63.98 | 66.05 | a | 63.83 | a | 58.10 | 44.38 | a | 43.18 | 53.98 | ||||||||
1994 | 46.23 | a | 44.98 | a | 51.16 | b | 52.85 | 57.35 | 59.05 | 65.42 | a | 64.71 | 63.22 | 55.13 | 43.50 | 45.22 | b | 54.07 | ||||||||
1995 | 47.23 | a | 51.77 | 48.15 | 50.59 | a | 56.63 | a | 59.53 | 66.05 | 64.20 | a | 65.43 | a | 56.19 | 53.27 | 48.62 | a | 55.64 | |||||||
1996 | 45.25 | a | 49.47 | 50.02 | 53.13 | 54.39 | 60.77 | 67.24 | 66.61 | 61.81 | a | 56.90 | 50.68 | 45.65 | 55.16 | |||||||||||
1997 | 48.74 | b | 47.11 | a | 49.66 | 53.28 | a | 60.55 | a | 60.52 | b | 65.09 | d | ----- | z | ----- | z | 55.17 | a | ----- | z | 42.37 | a | 53.61 | c | |
1998 | 47.23 | a | 46.09 | a | 49.61 | 50.76 | a | 53.94 | 61.02 | a | 67.63 | 66.98 | 64.00 | 56.44 | ----- | z | 41.70 | f | 56.37 | b | ||||||
1999 | 44.59 | b | 44.98 | c | 45.76 | b | 49.70 | b | 53.23 | 59.58 | 63.73 | 65.52 | 63.41 | a | 56.98 | a | 52.54 | b | 45.10 | a | 53.76 | |||||
2000 | 44.33 | d | 47.38 | a | 46.29 | 54.79 | a | 56.72 | b | 62.90 | a | 65.25 | e | 65.68 | a | 63.22 | 56.52 | a | 46.19 | a | 45.19 | e | 54.54 | |||
2001 | 44.48 | b | 46.09 | a | 50.39 | 49.55 | a | 58.13 | a | 59.72 | a | 64.61 | 65.47 | 62.94 | c | 56.12 | c | 50.54 | p | 44.31 | b | 54.71 | a | |||
2002 | 44.18 | 48.12 | b | 44.28 | v | 52.98 | c | 55.95 | u | 62.61 | b | 67.04 | r | 65.32 | l | 62.88 | v | 53.50 | p | 51.18 | p | ----- | z | 51.97 | h | |
2003 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 61.47 | k | 65.20 | f | 65.85 | e | 65.05 | h | 59.74 | h | 48.58 | e | ----- | z | 57.21 | j |
2004 | 48.00 | e | 48.04 | e | 53.71 | j | 52.55 | i | 57.76 | h | 62.06 | d | 66.68 | c | 68.07 | a | 61.83 | g | 56.15 | d | 48.31 | a | 46.69 | b | 55.50 | d |
2005 | 46.50 | c | 49.02 | c | 52.52 | b | 51.87 | c | 58.35 | d | 59.92 | f | 66.48 | c | 65.63 | 60.45 | 56.81 | 49.14 | a | 45.05 | c | 54.71 | a | |||
2006 | 49.36 | j | 46.72 | e | 46.09 | c | 51.59 | a | 57.50 | e | 63.07 | b | 65.18 | a | 63.38 | b | 62.61 | c | 55.35 | d | 49.72 | c | 46.08 | e | 55.21 | a |
2007 | 42.98 | d | 45.59 | a | 51.59 | b | 51.89 | c | 56.81 | d | 59.73 | b | 66.76 | 65.24 | b | 61.60 | d | 55.33 | b | 48.44 | c | 42.29 | j | 55.09 | a | |
2008 | 41.63 | e | 46.54 | e | 47.30 | h | 48.85 | c | ----- | z | ----- | z | ----- | z | 64.73 | a | ----- | z | ----- | z | ----- | z | ----- | z | 50.44 | h |
2009 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2010 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2011 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2012 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2013 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2014 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2015 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2016 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2017 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2018 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2019 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2020 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2021 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2022 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2023 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2024 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 44.01 | 46.40 | 48.06 | 51.24 | 55.60 | 60.11 | 64.30 | 64.50 | 61.73 | 55.79 | 48.70 | 44.69 | 53.61 | |||||||||||||
S.D. | 3.02 | 2.51 | 2.50 | 2.25 | 1.97 | 1.76 | 1.73 | 1.64 | 1.84 | 1.91 | 2.33 | 2.55 | 1.06 | |||||||||||||
SKEW | -0.56 | 0.15 | 0.76 | -0.05 | 0.23 | -0.32 | 0.06 | -0.05 | 0.03 | -0.34 | -0.31 | -0.19 | 0.37 | |||||||||||||
MAX | 49.34 | 52.02 | 56.73 | 56.32 | 60.55 | 63.43 | 67.63 | 68.07 | 65.43 | 60.07 | 53.27 | 50.72 | 56.24 | |||||||||||||
MIN | 35.26 | 40.40 | 44.52 | 46.00 | 51.05 | 55.36 | 60.02 | 60.37 | 57.87 | 50.42 | 43.33 | 37.84 | 51.46 | |||||||||||||
YRS | 70 | 72 | 68 | 72 | 70 | 71 | 73 | 73 | 70 | 73 | 70 | 70 | 56 |