YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1929 | ----- | z | 44.73 | q | 53.67 | a | 58.53 | 67.17 | a | 70.63 | 78.74 | 79.23 | 72.17 | 65.68 | 51.00 | 47.86 | c | 64.47 | b | |||||||
1930 | 37.00 | 50.57 | 56.16 | 64.20 | 65.94 | 72.83 | 76.81 | 80.33 | a | 69.50 | 59.81 | 50.30 | 47.39 | 60.90 | ||||||||||||
1931 | 51.06 | 51.04 | 56.71 | 64.40 | 71.26 | 72.79 | b | 77.59 | b | 77.27 | a | 68.75 | b | 61.18 | c | 47.32 | b | 44.58 | e | 61.99 | ||||||
1932 | 42.33 | d | 45.50 | a | 51.73 | a | 61.25 | f | 65.00 | a | 73.57 | 74.03 | b | 73.55 | 70.97 | 60.52 | 53.38 | a | 41.63 | a | 59.29 | a | ||||
1933 | 42.66 | b | 42.33 | a | 53.50 | a | 61.03 | a | 64.23 | 70.39 | g | 74.92 | g | 78.43 | h | 66.04 | e | 59.85 | e | 50.63 | 48.03 | 54.26 | c | |||
1934 | 48.81 | 54.32 | 60.60 | f | 66.55 | h | 70.25 | g | 71.80 | 75.89 | c | 77.16 | 67.88 | e | 62.32 | 53.50 | 45.27 | a | 61.88 | c | ||||||
1935 | 45.20 | a | 50.89 | 49.96 | c | 59.73 | 66.23 | 71.13 | 75.87 | 74.10 | 70.53 | 57.52 | 45.73 | 46.13 | 59.42 | |||||||||||
1936 | 45.03 | 38.04 | e | 48.70 | a | 59.75 | b | 66.17 | a | 71.37 | 73.42 | g | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 54.84 | f | ||
1937 | 32.15 | d | 42.93 | 53.65 | 53.60 | 63.16 | 70.07 | 72.55 | 71.42 | 67.53 | 62.12 | e | 49.63 | 42.43 | x | 58.07 | a | |||||||||
1938 | 42.97 | a | 51.29 | 52.40 | a | 60.93 | 65.58 | 71.33 | 77.55 | 72.23 | 70.73 | 61.07 | b | 46.93 | 44.61 | 59.80 | ||||||||||
1939 | 45.43 | a | 43.68 | 52.42 | 61.27 | 66.42 | 66.43 | 74.37 | a | 77.74 | 68.17 | 59.13 | 57.00 | 49.77 | 60.15 | |||||||||||
1940 | 47.48 | 50.86 | 57.60 | a | 61.90 | 70.39 | 73.66 | a | 76.63 | a | 74.87 | 71.43 | 62.45 | 47.43 | 47.23 | a | 61.83 | |||||||||
1941 | 51.97 | 57.39 | 63.10 | 64.80 | 66.23 | 71.73 | 80.87 | 77.67 | d | 66.47 | 60.71 | 54.47 | 47.55 | b | 63.58 | |||||||||||
1942 | 46.58 | 49.96 | a | 55.94 | 63.00 | 67.07 | a | 69.24 | a | 80.45 | 79.74 | 71.19 | d | 64.39 | ----- | z | 45.46 | c | 63.00 | a | ||||||
1943 | 40.21 | b | 51.81 | b | 52.29 | 64.43 | b | 65.17 | b | 71.07 | b | 76.03 | a | 75.87 | 74.80 | 62.55 | 54.23 | 45.65 | 61.18 | |||||||
1944 | 49.16 | 48.52 | b | 52.58 | 61.70 | 67.45 | 72.17 | 76.58 | 74.40 | a | 72.83 | 65.13 | a | 52.69 | a | 48.16 | 61.78 | |||||||||
1945 | 48.35 | 48.61 | 51.84 | 56.60 | 68.94 | 71.17 | 78.68 | 77.71 | 68.27 | 63.63 | d | 53.47 | 45.10 | a | 61.03 | |||||||||||
1946 | 46.86 | j | 49.50 | 53.06 | 58.83 | 71.16 | 70.75 | b | 77.03 | 76.40 | a | 71.67 | f | 54.71 | c | 47.90 | 43.77 | 60.31 | b | |||||||
1947 | 40.00 | b | 51.59 | a | 57.83 | a | 63.42 | d | 70.93 | c | 71.21 | a | ----- | z | 76.17 | a | 70.17 | 60.21 | b | 47.48 | a | 46.63 | d | 59.60 | a | |
1948 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 72.83 | 75.48 | 71.87 | a | 68.93 | a | 59.84 | 47.13 | 40.97 | 62.44 | e | |||||
1949 | 36.35 | 43.43 | 54.50 | a | 63.62 | a | 69.97 | 71.20 | 74.35 | 75.58 | 72.37 | 56.29 | 58.37 | 45.39 | 60.12 | |||||||||||
1950 | 32.10 | a | 47.21 | 51.23 | 59.60 | 63.48 | 72.03 | a | 75.93 | a | 78.21 | b | 73.50 | 57.74 | 49.43 | 50.00 | 59.21 | |||||||||
1951 | 42.61 | 48.89 | 49.00 | 65.43 | 66.23 | 75.07 | 79.29 | 76.58 | 72.53 | 60.68 | 51.27 | 42.19 | 60.81 | |||||||||||||
1952 | 42.32 | 50.07 | 51.61 | 64.73 | 67.10 | 68.47 | 78.32 | 78.32 | 74.20 | 64.39 | 50.40 | 48.97 | a | 61.58 | ||||||||||||
1953 | 50.77 | a | 49.68 | 54.03 | 59.32 | b | 67.10 | 67.71 | b | 75.77 | a | 77.29 | 74.13 | 63.67 | a | 56.70 | 48.55 | 62.06 | ||||||||
1954 | 42.00 | 50.71 | 53.61 | c | 58.45 | a | 66.45 | 67.03 | 71.97 | 71.42 | 68.10 | a | 61.50 | a | 56.73 | 48.00 | 59.66 | |||||||||
1955 | 45.68 | 46.54 | 46.50 | a | 55.53 | 62.84 | 69.52 | a | 70.87 | 72.90 | a | 67.43 | 59.79 | b | 45.13 | 43.73 | a | 57.21 | ||||||||
1956 | 44.48 | 41.21 | 49.47 | a | 62.73 | 70.68 | 70.43 | 78.60 | a | 76.40 | a | 69.73 | 56.57 | a | 49.59 | a | 46.55 | 59.70 | ||||||||
1957 | 38.68 | 46.04 | 53.00 | 60.62 | a | 70.90 | a | 73.69 | a | 73.67 | a | 74.10 | a | 76.86 | a | 60.42 | g | 52.40 | 49.58 | 60.87 | a | |||||
1958 | 49.94 | 56.11 | 56.39 | 62.13 | 77.17 | h | 78.28 | a | 87.68 | 83.80 | a | 72.07 | b | 67.07 | a | 50.10 | a | 50.77 | 64.94 | a | ||||||
1959 | 46.73 | a | 49.08 | b | 53.26 | 61.47 | 68.04 | f | 72.60 | 81.00 | 77.65 | 67.73 | 60.97 | 52.07 | 46.97 | 60.87 | a | |||||||||
1960 | 43.39 | 49.66 | 54.48 | 61.83 | 63.19 | 72.03 | 83.03 | a | 74.50 | a | 70.23 | 62.94 | 51.63 | 45.39 | 61.03 | |||||||||||
1961 | 50.16 | 50.57 | 55.57 | a | 57.69 | a | 65.65 | 76.67 | 80.81 | 82.68 | 71.79 | a | 61.00 | 49.97 | 45.55 | 62.34 | ||||||||||
1962 | 45.68 | 52.86 | 52.30 | a | 63.23 | 60.71 | 72.37 | 76.26 | 75.77 | 73.43 | 62.90 | b | 53.83 | 47.77 | 61.43 | |||||||||||
1963 | 40.06 | 56.25 | 53.77 | 58.77 | 70.10 | 69.17 | a | 73.23 | 77.00 | 76.52 | a | 64.19 | 51.60 | 46.77 | a | 61.45 | ||||||||||
1964 | 46.10 | a | 50.03 | 52.42 | 58.30 | 64.90 | 69.80 | 74.10 | 72.65 | 67.47 | 63.81 | 46.87 | 40.81 | 58.94 | ||||||||||||
1965 | 43.97 | 47.93 | 56.52 | 60.60 | ----- | z | 72.47 | 78.45 | 76.03 | 67.83 | 64.74 | 55.00 | 44.30 | a | 60.71 | a | ||||||||||
1966 | 45.19 | 50.00 | 54.35 | 59.83 | a | 66.29 | 69.37 | 73.35 | 76.17 | a | 71.90 | 61.29 | 51.13 | 47.84 | 60.56 | |||||||||||
1967 | 46.94 | 50.21 | 50.39 | 55.97 | 65.13 | 75.53 | 77.58 | 83.61 | 76.33 | 61.32 | 52.83 | 44.16 | 61.67 | |||||||||||||
1968 | 45.19 | 55.93 | ----- | z | 57.57 | 66.32 | 69.60 | 78.87 | 73.23 | 68.37 | 59.13 | 51.41 | a | 40.32 | 60.54 | a | ||||||||||
1969 | 36.65 | 47.96 | 56.58 | 58.83 | 70.23 | 75.43 | 75.87 | 72.84 | 68.17 | 61.29 | 51.60 | 47.74 | 60.27 | |||||||||||||
1970 | 45.29 | 54.68 | 55.16 | 55.33 | 64.90 | 73.70 | 76.55 | 75.39 | 66.67 | 59.48 | 51.50 | 43.00 | a | 60.14 | ||||||||||||
1971 | 44.87 | 47.79 | 48.84 | 59.70 | 66.42 | 66.27 | 77.52 | 79.68 | 68.70 | 57.68 | 49.80 | 41.48 | 59.06 | |||||||||||||
1972 | 41.06 | 48.17 | 53.37 | a | 55.07 | 69.39 | 69.00 | 76.42 | 77.32 | 66.67 | 59.52 | 51.30 | 42.06 | 59.11 | ||||||||||||
1973 | 45.03 | 53.32 | 53.23 | 59.38 | a | 68.13 | 69.47 | 76.55 | 72.42 | 72.23 | 58.90 | ----- | z | 47.77 | 61.49 | a | ||||||||||
1974 | 44.10 | 48.50 | 52.17 | a | 57.20 | 61.19 | 71.03 | 73.48 | 77.19 | 76.66 | a | 63.58 | 51.83 | 47.45 | 60.37 | |||||||||||
1975 | 44.35 | 47.71 | 51.26 | 55.62 | a | 65.19 | 68.28 | a | 76.77 | 71.61 | 73.83 | 57.48 | 50.30 | 46.45 | 59.07 | |||||||||||
1976 | 46.77 | 47.69 | 49.87 | 59.97 | 66.32 | 67.53 | 75.16 | 70.42 | 71.40 | 61.39 | 52.10 | 47.94 | 59.71 | |||||||||||||
1977 | 42.19 | 55.37 | a | 50.81 | 63.77 | 62.77 | 73.40 | 73.84 | 80.00 | a | 67.23 | 60.35 | 48.33 | 45.71 | 60.32 | |||||||||||
1978 | 46.81 | 52.21 | 56.48 | 58.87 | 64.48 | 76.43 | 77.90 | 74.84 | 66.60 | 63.61 | 48.00 | 41.48 | 60.64 | |||||||||||||
1979 | 40.84 | 46.07 | a | 58.16 | 58.77 | 67.84 | 72.63 | 79.45 | 76.87 | 74.07 | 63.23 | 51.00 | 48.65 | 61.46 | ||||||||||||
1980 | ----- | z | 50.48 | 51.65 | 64.00 | a | 65.68 | 67.83 | 75.65 | 73.65 | 70.17 | 64.10 | 53.07 | 48.77 | 62.28 | a | ||||||||||
1981 | 52.35 | 52.04 | 59.80 | a | 59.28 | a | 64.97 | 67.60 | 75.65 | 82.65 | 72.47 | 58.23 | 55.30 | 45.77 | 62.17 | |||||||||||
1982 | 43.42 | 48.44 | a | 53.65 | 58.43 | b | 66.93 | c | 76.92 | d | 73.70 | d | 76.21 | b | 71.19 | d | 60.35 | 47.57 | 44.55 | 60.11 | ||||||
1983 | 50.26 | 53.46 | 57.26 | 62.33 | 70.39 | c | 69.30 | 69.96 | c | 77.87 | a | 68.41 | c | 60.16 | 51.27 | 38.90 | 60.80 | |||||||||
1984 | 47.30 | a | 52.24 | 57.42 | 58.67 | 63.31 | b | 71.11 | b | 77.90 | a | 77.97 | 70.47 | 57.55 | 50.20 | 40.65 | 60.40 | |||||||||
1985 | 43.55 | 45.68 | 52.57 | a | 58.62 | a | 66.65 | 71.17 | 83.13 | 77.50 | a | 67.80 | 58.16 | 40.17 | 38.52 | 58.62 | ||||||||||
1986 | 51.74 | 50.39 | 58.52 | 56.13 | 65.45 | 74.50 | 72.66 | b | 81.00 | 68.20 | 62.94 | 49.33 | 45.33 | a | 61.35 | |||||||||||
1987 | 45.29 | 53.67 | a | 56.03 | a | 63.03 | 66.94 | 74.78 | c | 75.87 | 77.93 | a | 75.13 | 66.27 | a | 54.33 | 43.41 | b | 62.72 | |||||||
1988 | ----- | z | ----- | z | 54.06 | 59.79 | a | 67.16 | 70.21 | b | 76.53 | a | 77.77 | 71.80 | 63.07 | b | 50.50 | 47.03 | a | 63.79 | b | |||||
1989 | 45.16 | 41.75 | 50.29 | 63.17 | 64.35 | 72.97 | a | 73.58 | 74.48 | 74.17 | 60.13 | 51.57 | 45.79 | b | 59.78 | |||||||||||
1990 | 46.84 | 46.86 | 55.19 | 60.53 | 63.06 | 69.37 | 78.43 | a | 78.32 | 72.90 | 57.71 | 51.23 | 39.13 | 59.97 | ||||||||||||
1991 | 44.20 | a | 55.26 | a | 51.84 | 57.30 | 61.10 | 66.21 | k | 76.55 | 76.84 | 72.83 | 61.16 | 51.60 | 47.06 | 59.61 | a | |||||||||
1992 | 48.26 | 54.76 | 58.87 | 62.60 | 69.87 | 74.41 | a | 74.55 | 77.10 | 69.07 | 60.84 | 49.43 | 42.71 | 61.87 | ||||||||||||
1993 | 43.03 | b | 50.67 | a | 56.52 | 57.80 | 70.23 | 69.07 | 69.13 | 73.71 | 71.73 | 62.43 | a | 47.30 | 44.45 | 59.67 | ||||||||||
1994 | 48.48 | 45.68 | 56.39 | 60.27 | 67.16 | 69.60 | 79.03 | 78.10 | 73.80 | 60.19 | 46.60 | 45.55 | 60.90 | |||||||||||||
1995 | 49.03 | b | 51.68 | 55.48 | 60.40 | 69.03 | 71.83 | 76.68 | 70.90 | 73.33 | ----- | z | 54.60 | 47.55 | 61.87 | a | ||||||||||
1996 | 44.97 | a | 50.24 | 55.23 | 60.80 | 59.73 | a | 69.30 | 77.74 | 76.80 | a | 66.10 | 58.10 | 49.34 | a | 43.23 | 59.30 | |||||||||
1997 | 45.52 | 50.43 | 52.52 | 58.55 | a | 68.61 | 68.62 | a | 74.35 | 79.19 | ----- | z | 58.47 | a | ----- | z | ----- | z | 61.81 | c | ||||||
1998 | 47.39 | 51.96 | 54.68 | 61.23 | ----- | z | ----- | z | 81.06 | 82.19 | 77.57 | 59.83 | g | 51.63 | 44.39 | 61.35 | c | |||||||||
1999 | 46.39 | 48.63 | a | 53.10 | 60.17 | 62.06 | 66.57 | 72.77 | 74.16 | 71.20 | 60.48 | 53.30 | 46.10 | 59.58 | ||||||||||||
2000 | 45.97 | 51.86 | 53.35 | 62.07 | 64.40 | a | 70.62 | a | 74.52 | 74.68 | 70.80 | 61.00 | 50.13 | 45.81 | 60.43 | |||||||||||
2001 | 48.27 | a | 50.46 | 54.52 | 58.37 | 68.00 | 68.78 | l | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 55.92 | g | ||||
2002 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 73.33 | v | 77.23 | 71.57 | 59.03 | 54.67 | 48.26 | 62.15 | g | |||||
2003 | 50.35 | 48.43 | 53.48 | 57.13 | 65.06 | 72.79 | a | 80.61 | 79.23 | 73.47 | 61.81 | 47.79 | a | 46.42 | 61.38 | |||||||||||
2004 | 44.71 | 51.64 | a | 56.97 | a | 66.03 | 66.48 | 74.17 | 79.74 | 79.23 | 66.72 | a | 61.06 | 50.24 | a | 45.90 | 61.91 | |||||||||
2005 | 47.20 | a | 52.86 | 58.53 | a | ----- | z | 67.65 | 67.87 | 76.65 | 78.77 | 68.93 | a | 62.26 | 47.10 | a | 44.93 | a | 61.16 | a | ||||||
2006 | 48.00 | 48.50 | 54.23 | a | 60.63 | 66.03 | 71.70 | 77.26 | 75.61 | 71.03 | 58.87 | 47.97 | 45.48 | 60.44 | ||||||||||||
2007 | 43.32 | 49.21 | 54.23 | 57.90 | 66.19 | 67.93 | 75.97 | 73.55 | 66.80 | 57.52 | 48.20 | 41.74 | 58.55 | |||||||||||||
2008 | 41.81 | 49.17 | 49.16 | 54.50 | 62.48 | b | 65.14 | a | 73.61 | h | 73.54 | r | 70.14 | a | 58.68 | c | 53.17 | 38.14 | c | 54.24 | b | |||||
2009 | 40.96 | c | 49.14 | 48.35 | 58.10 | a | 64.68 | 72.50 | 79.68 | 74.81 | 71.07 | 56.59 | b | 49.24 | a | 40.16 | 58.77 | |||||||||
2010 | 49.37 | d | 52.36 | 55.29 | 56.63 | 59.77 | 64.77 | 74.42 | 72.68 | 66.40 | 59.32 | 46.60 | 46.55 | 58.68 | ||||||||||||
2011 | 44.13 | 43.25 | 50.58 | 51.37 | 58.33 | a | 65.57 | 69.94 | 72.74 | 71.40 | 56.52 | 47.17 | 41.03 | 56.00 | ||||||||||||
2012 | 42.42 | 47.38 | 47.29 | 58.93 | 63.45 | 64.50 | l | 71.48 | 75.19 | 70.21 | b | 57.94 | 49.53 | 42.19 | 56.91 | a | ||||||||||
2013 | 39.81 | d | 46.43 | 53.13 | 55.46 | b | 65.37 | a | 70.83 | 76.16 | 76.55 | 67.90 | 56.19 | 49.30 | 39.26 | 58.03 | ||||||||||
2014 | 43.45 | 44.32 | 52.71 | 59.47 | 68.00 | 69.10 | 77.29 | 78.00 | 71.17 | 62.55 | 48.77 | 46.29 | 60.09 | |||||||||||||
2015 | 47.71 | 52.14 | 57.65 | 60.07 | 66.45 | 76.00 | 80.23 | 78.52 | 66.97 | 61.68 | 46.60 | 43.61 | 61.47 | |||||||||||||
2016 | 45.13 | 52.55 | 54.61 | 63.83 | 66.84 | 69.83 | 72.94 | 76.06 | 66.37 | 58.06 | 53.50 | 38.48 | 59.85 | |||||||||||||
2017 | 40.77 | 45.21 | 49.26 | 55.80 | 65.35 | 69.60 | 75.00 | 78.16 | 71.20 | 57.58 | 48.27 | 42.23 | 58.20 | |||||||||||||
2018 | 45.90 | 43.11 | 51.68 | 55.83 | 67.68 | 67.80 | 78.29 | 76.50 | a | 67.20 | 57.97 | 50.30 | 44.33 | a | 58.88 | |||||||||||
2019 | 47.58 | 38.82 | 55.23 | 57.13 | 67.61 | 69.40 | 73.23 | 75.48 | 65.73 | 54.42 | 48.14 | b | 44.65 | 58.12 | ||||||||||||
2020 | 45.16 | 47.00 | a | 49.35 | 58.30 | 65.06 | 67.20 | 72.42 | 74.81 | 71.17 | 56.61 | 49.70 | 46.10 | a | 58.57 | |||||||||||
2021 | 44.48 | 41.19 | a | 51.52 | 60.27 | 62.53 | a | 70.20 | e | 75.77 | 75.16 | 68.43 | 55.52 | 50.53 | 38.61 | 57.85 | ||||||||||
2022 | 42.84 | 45.21 | 52.26 | 54.03 | 58.84 | 67.86 | a | 77.06 | 78.35 | 74.23 | 66.26 | 48.40 | 41.81 | 58.93 | ||||||||||||
2023 | 48.06 | 47.54 | 54.55 | 56.47 | 71.45 | 73.00 | 79.77 | 80.06 | 70.53 | 62.58 | 51.63 | 49.81 | 62.12 | |||||||||||||
2024 | 45.81 | 50.41 | 54.96 | e | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 50.39 | i | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 44.88 | 49.17 | 53.65 | 59.66 | 66.05 | 70.91 | 76.42 | 76.44 | 70.54 | 60.55 | 50.53 | 44.94 | 60.22 | |||||||||||||
S.D. | 3.90 | 3.90 | 2.97 | 2.98 | 2.92 | 2.82 | 3.10 | 2.86 | 2.89 | 2.75 | 2.97 | 3.05 | 1.42 | |||||||||||||
SKEW | -0.79 | -0.48 | 0.16 | -0.09 | -0.33 | 0.21 | 0.38 | 0.23 | 0.32 | 0.07 | -0.05 | -0.47 | -0.28 | |||||||||||||
MAX | 52.35 | 57.39 | 63.10 | 66.03 | 71.45 | 78.28 | 87.68 | 83.80 | 77.57 | 67.07 | 58.37 | 50.77 | 63.58 | |||||||||||||
MIN | 32.10 | 38.04 | 46.50 | 51.37 | 58.33 | 64.77 | 69.13 | 70.42 | 65.73 | 54.42 | 40.17 | 38.14 | 56.00 | |||||||||||||
YRS | 90 | 92 | 92 | 90 | 88 | 89 | 89 | 91 | 91 | 90 | 90 | 91 | 68 |