YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1932 | ----- | z | ----- | z | 48.03 | 53.63 | 59.81 | 66.20 | 75.52 | 74.06 | 69.53 | 56.74 | 46.40 | 37.67 | a | 58.76 | b | |||||||||
1933 | 36.13 | 36.57 | 46.97 | 50.57 | 58.94 | 66.53 | 76.77 | 75.65 | 69.17 | 61.29 | 46.40 | 38.90 | 55.32 | |||||||||||||
1934 | 39.29 | 47.89 | 54.13 | 57.13 | 64.58 | 64.17 | 76.48 | 79.42 | 67.97 | 59.29 | 47.43 | 42.16 | 58.33 | |||||||||||||
1935 | 39.37 | a | 44.93 | 44.81 | 53.07 | 57.03 | 66.93 | 73.81 | 77.23 | 71.87 | 55.42 | 41.57 | 39.77 | 55.48 | ||||||||||||
1936 | 38.32 | 43.72 | 49.84 | 54.97 | 61.84 | 70.67 | 77.06 | 77.13 | 66.70 | 57.29 | 46.03 | 38.38 | b | 56.83 | ||||||||||||
1937 | 31.16 | 41.21 | 45.97 | 52.10 | 59.52 | 66.93 | 78.32 | 77.68 | 72.87 | 57.58 | 46.40 | 43.29 | 56.09 | |||||||||||||
1938 | 40.06 | 41.93 | 47.90 | 52.03 | 59.77 | 66.60 | 74.94 | 75.35 | 70.00 | 56.58 | 39.47 | 42.13 | 55.56 | |||||||||||||
1939 | 38.71 | 36.86 | 46.73 | a | 55.10 | 62.68 | 67.20 | 76.13 | 78.61 | 69.53 | 55.61 | 49.50 | 41.90 | 56.55 | ||||||||||||
1940 | 43.35 | 44.34 | 49.06 | 55.03 | 64.16 | 70.37 | 73.10 | 76.65 | 70.43 | 59.48 | 44.33 | 43.94 | 57.85 | |||||||||||||
1941 | 44.48 | 47.68 | 50.55 | 52.20 | 63.16 | 67.10 | 76.48 | 72.90 | 62.37 | 56.13 | 46.69 | a | 42.61 | 56.86 | ||||||||||||
1942 | 40.13 | 39.93 | 44.71 | 52.33 | 58.00 | 66.37 | 76.94 | 75.74 | 64.73 | 57.06 | 46.40 | 40.74 | 55.26 | |||||||||||||
1943 | 38.81 | 43.63 | a | 51.19 | 56.14 | a | 61.29 | 65.87 | 74.13 | 77.10 | 71.83 | 58.23 | 43.67 | 41.42 | 56.94 | |||||||||||
1944 | 36.77 | 38.93 | 43.87 | 51.20 | 58.90 | 62.00 | 69.71 | 74.00 | 68.10 | 57.06 | 45.60 | 37.71 | 53.66 | |||||||||||||
1945 | 37.34 | b | 40.64 | 42.57 | a | 49.87 | 60.03 | 64.50 | 75.94 | 75.90 | 70.17 | 59.77 | 44.33 | 37.32 | 54.87 | |||||||||||
1946 | 36.74 | 36.48 | a | 44.84 | 55.53 | 59.74 | 49.00 | c | 75.68 | 78.00 | 70.07 | 53.65 | 43.76 | a | 42.29 | 53.81 | ||||||||||
1947 | 34.84 | 44.64 | 49.35 | 54.10 | 62.55 | 66.50 | 74.45 | 74.71 | 72.48 | a | 57.87 | 43.13 | 39.60 | a | 56.19 | |||||||||||
1948 | 36.90 | 40.59 | 41.48 | 54.83 | a | 59.35 | 66.03 | 72.39 | 74.16 | 68.23 | 59.00 | 40.90 | a | 35.39 | 54.10 | |||||||||||
1949 | 31.97 | 37.36 | 44.55 | 53.33 | 61.13 | 70.47 | 74.19 | 70.39 | 71.47 | 55.87 | 50.03 | 37.65 | 54.87 | |||||||||||||
1950 | 36.39 | 43.64 | 49.26 | 57.77 | 58.52 | 65.70 | 76.03 | 72.65 | 63.90 | 57.28 | b | 45.60 | 40.00 | 55.56 | ||||||||||||
1951 | 35.42 | 39.14 | 41.26 | 44.67 | 51.94 | 62.41 | a | 73.52 | 70.42 | 63.00 | 56.13 | 45.37 | 39.57 | a | 51.90 | |||||||||||
1952 | 38.52 | 42.41 | 45.87 | 54.23 | 64.45 | 66.21 | a | 75.26 | 77.74 | 70.77 | 59.13 | 43.00 | 40.26 | 56.49 | ||||||||||||
1953 | 43.42 | 40.96 | 47.19 | 53.67 | 56.84 | 64.93 | 79.16 | 75.06 | 65.57 | 57.16 | 48.43 | 36.93 | c | 55.78 | ||||||||||||
1954 | 41.40 | k | 45.93 | 48.03 | 56.67 | 60.77 | 65.20 | 77.10 | a | 71.32 | 67.57 | 58.00 | 48.63 | 38.76 | b | 58.00 | a | |||||||||
1955 | 37.48 | 38.25 | 46.23 | 52.30 | 58.84 | 66.07 | 74.74 | 78.10 | 68.53 | 59.10 | 46.10 | 42.10 | 55.65 | |||||||||||||
1956 | 42.00 | 38.17 | 46.32 | 53.33 | 61.87 | 70.73 | 75.39 | 69.48 | 71.40 | 55.55 | k | 39.71 | b | 35.87 | 54.94 | a | ||||||||||
1957 | 40.61 | 47.70 | a | 49.13 | 54.03 | 56.94 | 68.10 | 73.39 | 73.00 | 65.23 | 55.94 | 43.77 | 40.16 | 55.67 | ||||||||||||
1958 | 39.06 | 47.64 | 46.13 | 51.07 | 61.65 | 67.10 | 71.26 | 78.97 | a | 71.17 | 61.45 | 45.53 | 41.00 | 56.84 | ||||||||||||
1959 | 39.81 | 40.57 | 46.87 | 54.70 | 56.77 | a | 68.70 | 77.32 | 73.71 | 63.97 | 54.26 | 42.83 | 36.77 | 54.69 | ||||||||||||
1960 | 32.42 | 39.34 | 48.58 | 53.10 | 56.84 | 67.13 | 71.84 | 72.06 | 69.30 | 55.29 | 42.07 | 33.16 | 53.43 | |||||||||||||
1961 | 39.57 | a | 42.50 | 47.19 | 51.53 | 56.20 | a | 65.87 | 73.26 | 74.19 | 61.63 | 51.77 | 39.93 | 34.39 | 53.17 | |||||||||||
1962 | 38.16 | 44.04 | 41.61 | 52.53 | 52.71 | 63.00 | 70.68 | 74.45 | 70.30 | 58.77 | 48.53 | 41.45 | 54.69 | |||||||||||||
1963 | 36.39 | 47.64 | 43.06 | 46.77 | 57.35 | 62.77 | 71.97 | 74.81 | 69.47 | 59.52 | 46.80 | 35.19 | 54.31 | |||||||||||||
1964 | 33.68 | 37.31 | 42.16 | 49.67 | 56.71 | 64.40 | 75.23 | 75.06 | 65.27 | 61.90 | 43.57 | 40.58 | 53.79 | |||||||||||||
1965 | 39.42 | 39.64 | 43.74 | 51.67 | 55.61 | 59.47 | 71.65 | 73.16 | 63.07 | 56.42 | 50.33 | 40.19 | 53.70 | |||||||||||||
1966 | 35.65 | 38.11 | 46.52 | 51.30 | c | 58.45 | 64.83 | 73.52 | 75.06 | 67.57 | 55.84 | 47.67 | 41.23 | 54.64 | ||||||||||||
1967 | 37.06 | 40.68 | 46.55 | 45.97 | 55.26 | 62.27 | 77.10 | 77.03 | 68.67 | 55.23 | 48.77 | 36.45 | 54.25 | |||||||||||||
1968 | 36.68 | 45.97 | 45.90 | 48.27 | 57.32 | 64.37 | 75.10 | 71.52 | 65.77 | 56.90 | a | 46.87 | 33.61 | 54.02 | ||||||||||||
1969 | 44.87 | 41.07 | 44.55 | 50.57 | 58.94 | 63.47 | 75.35 | 78.48 | 72.50 | 54.32 | 48.43 | 41.87 | 56.20 | |||||||||||||
1970 | 38.42 | 43.07 | 45.29 | 46.67 | 57.13 | 65.97 | 76.61 | 79.65 | 66.20 | 54.74 | 46.97 | 40.13 | 55.07 | |||||||||||||
1971 | 36.68 | 41.14 | 43.74 | 49.43 | 56.23 | 64.87 | 75.42 | 79.33 | a | 69.03 | 51.68 | 44.40 | 37.84 | 54.15 | ||||||||||||
1972 | 34.55 | 42.48 | 50.39 | 51.33 | 57.81 | 67.67 | 75.58 | 74.39 | 67.03 | 60.90 | 43.90 | a | 37.65 | 55.31 | ||||||||||||
1973 | 35.42 | 43.46 | 43.23 | 48.27 | 60.06 | 66.80 | 73.58 | 73.52 | 63.33 | 56.42 | 48.23 | 40.06 | 54.37 | |||||||||||||
1974 | 42.03 | 39.21 | 46.83 | a | 50.93 | 58.19 | 68.93 | 74.45 | 71.94 | 72.60 | ----- | z | 44.20 | 33.71 | 54.82 | a | ||||||||||
1975 | 33.94 | 38.00 | 40.87 | 43.57 | 54.10 | 63.40 | 73.35 | 70.61 | 67.73 | 53.42 | 41.43 | 35.68 | 51.34 | |||||||||||||
1976 | 35.26 | 43.76 | 43.29 | 46.73 | 61.42 | 65.93 | 71.35 | 74.26 | 71.03 | 55.52 | 45.10 | 33.77 | 53.95 | |||||||||||||
1977 | 37.97 | a | 40.75 | 40.52 | 48.13 | 52.94 | 66.62 | a | 71.84 | 74.26 | 66.20 | 58.81 | 46.00 | 42.06 | 53.84 | |||||||||||
1978 | 42.60 | a | 43.54 | 50.65 | 54.10 | 58.74 | 71.97 | 75.87 | 74.16 | 66.40 | 61.90 | 45.93 | b | 35.10 | 56.75 | |||||||||||
1979 | 39.59 | b | 40.50 | 45.87 | a | 51.97 | 60.57 | a | 67.18 | b | 74.19 | 71.94 | 71.97 | 57.53 | a | 42.57 | 38.90 | 55.23 | ||||||||
1980 | 44.90 | 46.83 | 46.77 | 51.48 | a | 56.23 | 66.87 | 77.13 | 71.84 | 67.63 | 56.06 | 44.04 | b | 42.03 | 55.98 | |||||||||||
1981 | 43.58 | 43.68 | 46.45 | 52.93 | a | 58.84 | 69.50 | 74.84 | 76.00 | 68.17 | 54.10 | 46.27 | 41.19 | 56.30 | ||||||||||||
1982 | 40.06 | 45.96 | 47.68 | 55.14 | b | 58.35 | 65.77 | 74.39 | 77.68 | 68.77 | 54.90 | 45.87 | 39.81 | 56.20 | ||||||||||||
1983 | 41.52 | 46.29 | 49.77 | a | 48.32 | b | 58.60 | a | 64.76 | a | 75.06 | 77.45 | 76.50 | 61.35 | 48.37 | 43.84 | 57.65 | |||||||||
1984 | 42.39 | 41.48 | 47.94 | 50.33 | 63.74 | 68.27 | 78.29 | 77.77 | 74.23 | 56.19 | 46.70 | 41.84 | 57.43 | |||||||||||||
1985 | 38.77 | 39.50 | 45.00 | 54.07 | 60.65 | 68.21 | a | 78.00 | 76.65 | 66.53 | 61.23 | 48.33 | 44.10 | b | 56.75 | |||||||||||
1986 | 46.45 | 49.57 | 54.06 | 55.87 | 62.26 | 70.83 | 75.94 | 80.19 | 66.87 | 58.68 | 49.97 | 42.87 | 59.46 | |||||||||||||
1987 | 40.35 | 45.89 | 49.35 | 58.40 | 62.81 | 70.76 | a | 73.67 | a | 76.61 | 71.07 | 65.52 | 49.33 | 40.29 | 58.67 | |||||||||||
1988 | 41.57 | a | 47.59 | 49.52 | 55.10 | 60.93 | a | 68.81 | d | 78.13 | 76.61 | 69.27 | 64.19 | 50.07 | 41.61 | 58.62 | ||||||||||
1989 | 41.03 | 46.00 | 54.58 | 59.53 | 62.94 | 69.37 | 78.52 | 76.23 | 70.13 | 60.35 | 48.67 | 41.71 | 59.09 | |||||||||||||
1990 | 40.97 | 42.96 | 50.87 | 58.50 | 60.97 | 71.10 | 78.29 | 75.94 | 72.87 | 60.35 | 48.77 | 38.10 | 58.31 | |||||||||||||
1991 | 41.93 | a | 49.07 | 48.29 | 54.40 | 59.84 | 66.53 | 74.58 | 76.52 | 72.03 | a | 63.45 | 48.90 | 44.07 | b | 58.30 | ||||||||||
1992 | 41.07 | a | 48.69 | 50.42 | 58.43 | 64.35 | 68.37 | 76.26 | 78.71 | 73.57 | 62.48 | 46.47 | 40.39 | 59.10 | ||||||||||||
1993 | 44.93 | a | 48.21 | 53.32 | 57.43 | 64.45 | 69.33 | 73.87 | 76.06 | 69.53 | 62.48 | 47.20 | 40.61 | 58.95 | ||||||||||||
1994 | 41.32 | 43.07 | 52.68 | 56.20 | 61.55 | 73.37 | 76.19 | 80.94 | 73.63 | 60.48 | 43.57 | 41.35 | 58.70 | |||||||||||||
1995 | 45.26 | 50.64 | 51.71 | 56.00 | 59.55 | 67.70 | 76.13 | 81.03 | 75.73 | 60.42 | 54.37 | 44.52 | 60.25 | |||||||||||||
1996 | 43.94 | 51.31 | 52.26 | 58.27 | 66.19 | 70.67 | 80.48 | 79.71 | 72.00 | 60.32 | 50.87 | 43.74 | 60.81 | |||||||||||||
1997 | 46.26 | 44.21 | 51.65 | 57.17 | 68.03 | 67.50 | 73.39 | 79.81 | 75.80 | 58.68 | 52.60 | 41.52 | 59.72 | |||||||||||||
1998 | 43.68 | 47.46 | 49.77 | 53.87 | 60.87 | 67.70 | 79.84 | 80.23 | 72.28 | a | 57.81 | 48.43 | 41.71 | 58.64 | ||||||||||||
1999 | 42.71 | 44.54 | 49.48 | 51.50 | 61.10 | 68.70 | ----- | z | 76.84 | 73.73 | 62.23 | 52.70 | 41.55 | 56.82 | a | |||||||||||
2000 | 45.23 | 48.66 | 50.13 | 58.13 | 65.87 | 73.40 | 76.94 | 79.23 | a | 71.03 | 60.32 | 44.76 | a | 42.81 | 59.71 | |||||||||||
2001 | 40.35 | 43.71 | 52.06 | 54.53 | 66.26 | 72.93 | 75.81 | 78.68 | 73.43 | 63.00 | 54.27 | 39.97 | 59.58 | |||||||||||||
2002 | 41.23 | 42.93 | 47.84 | 56.37 | 62.94 | 69.77 | 78.35 | 74.52 | 71.53 | 58.90 | 51.57 | 42.61 | 58.21 | |||||||||||||
2003 | 46.58 | 46.89 | 52.32 | 55.00 | 62.81 | 68.87 | 79.84 | 80.03 | 74.47 | 67.55 | 48.60 | 42.06 | 60.42 | |||||||||||||
2004 | 42.45 | 43.72 | 57.32 | 58.67 | 65.16 | 69.10 | 77.32 | 77.10 | 71.23 | 60.68 | 47.43 | 44.03 | 59.52 | |||||||||||||
2005 | 47.16 | 49.00 | 53.16 | 55.63 | 65.90 | a | 70.40 | 79.74 | 80.03 | 70.80 | 61.60 | a | 52.53 | 43.84 | 60.82 | |||||||||||
2006 | 43.42 | 46.41 | a | 50.00 | 56.67 | 65.42 | 75.67 | 83.23 | 79.42 | 72.67 | 60.61 | 52.30 | 41.00 | 60.57 | ||||||||||||
2007 | 38.60 | a | 47.36 | 52.87 | 56.27 | 64.87 | 70.73 | 79.23 | 79.90 | 71.57 | 59.87 | 52.87 | 40.77 | 59.58 | ||||||||||||
2008 | 41.38 | b | 46.86 | a | 51.33 | d | 55.00 | g | 61.68 | f | 72.40 | e | 79.93 | c | 79.65 | e | 74.14 | b | 62.37 | a | 54.71 | b | 44.00 | 60.68 | b | |
2009 | 44.57 | j | 46.64 | 50.30 | a | 54.10 | a | 66.83 | g | 69.77 | 81.90 | 78.61 | 76.13 | 59.61 | 51.30 | 42.77 | 61.11 | b | ||||||||
2010 | 45.25 | c | 48.04 | 50.61 | 53.93 | 61.53 | a | 70.63 | 79.87 | 79.68 | 72.97 | 63.03 | a | 50.08 | d | 47.68 | 60.28 | |||||||||
2011 | 42.55 | 43.43 | 52.63 | a | 58.43 | 60.26 | 70.63 | 78.43 | c | 81.16 | 75.00 | 62.94 | 49.67 | 40.29 | 59.62 | |||||||||||
2012 | 43.00 | a | 46.11 | a | 50.03 | 57.10 | 65.00 | 72.52 | a | 77.81 | 80.97 | a | 75.05 | h | 62.97 | b | 53.20 | 46.23 | a | 59.54 | a | |||||
2013 | 41.60 | a | 44.46 | 54.07 | b | 57.41 | a | 66.19 | 70.55 | s | 81.15 | k | 78.42 | 72.57 | 58.35 | 52.31 | a | 42.57 | a | 56.80 | b | |||||
2014 | 46.10 | b | 49.36 | 52.93 | b | 58.53 | 62.29 | c | 72.00 | b | 80.13 | 77.80 | a | 77.00 | 64.00 | a | 50.90 | a | 45.66 | b | 61.39 | |||||
2015 | 44.58 | e | 49.46 | b | 55.18 | c | 56.35 | d | 58.81 | d | 73.22 | c | 77.57 | a | 79.73 | p | 75.26 | k | 68.66 | b | 48.64 | h | 39.90 | 58.19 | c | |
2016 | 42.06 | 48.86 | a | 51.44 | f | 57.39 | b | 61.29 | 72.40 | e | 79.14 | b | 80.72 | b | 69.82 | m | 61.69 | r | 53.15 | d | 43.70 | h | 61.88 | d | ||
2017 | 41.89 | l | 46.70 | r | 51.95 | l | 59.04 | g | 62.89 | c | 72.65 | d | 82.26 | d | 80.44 | d | 71.90 | 62.06 | 56.29 | b | 43.15 | d | 66.46 | d | ||
2018 | 45.90 | a | 42.90 | g | 51.71 | 59.80 | 60.32 | i | 71.48 | g | 80.24 | b | 82.27 | e | 73.84 | e | 61.04 | f | 52.29 | m | 45.77 | 62.79 | e | |||
2019 | 43.40 | a | 43.54 | 52.38 | b | 61.13 | 60.61 | 70.79 | a | 75.64 | i | 78.52 | b | 75.11 | k | 59.37 | a | 50.11 | b | 44.62 | j | 57.76 | c | |||
2020 | 43.69 | b | 45.85 | c | 50.44 | f | 57.60 | 67.58 | 72.14 | b | 78.25 | c | 82.19 | 74.27 | 64.34 | b | 51.29 | b | 42.37 | a | 61.78 | a | ||||
2021 | 44.32 | 47.26 | a | 50.17 | a | 59.79 | a | 63.84 | 75.30 | c | 82.71 | 81.43 | a | 75.93 | a | 61.03 | a | 54.62 | a | 46.83 | b | 61.94 | ||||
2022 | 45.35 | e | 45.37 | a | 52.19 | 58.17 | 65.28 | f | 74.62 | a | 80.87 | a | 83.87 | 78.48 | a | 67.04 | d | 47.32 | b | 43.61 | 61.54 | a | ||||
2023 | 44.37 | a | 42.54 | 49.52 | 57.92 | d | 63.74 | d | 69.83 | 81.19 | 80.29 | 73.67 | 63.45 | 52.73 | 45.65 | 60.41 | ||||||||||
2024 | 44.52 | d | 48.89 | b | 51.41 | i | 53.70 | t | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 46.70 | j |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 40.49 | 43.91 | 48.36 | 53.89 | 60.56 | 67.88 | 76.26 | 76.73 | 70.19 | 59.12 | 47.51 | 40.64 | 56.77 | |||||||||||||
S.D. | 3.75 | 3.70 | 3.70 | 3.71 | 3.44 | 3.82 | 2.89 | 3.16 | 3.66 | 3.45 | 3.76 | 3.14 | 2.47 | |||||||||||||
SKEW | -0.33 | -0.17 | -0.11 | -0.53 | -0.11 | -1.21 | 0.19 | -0.21 | -0.24 | 0.30 | 0.08 | -0.41 | 0.14 | |||||||||||||
MAX | 47.16 | 51.31 | 57.32 | 61.13 | 68.03 | 75.67 | 83.23 | 83.87 | 78.48 | 68.66 | 56.29 | 47.68 | 61.94 | |||||||||||||
MIN | 31.16 | 36.48 | 40.52 | 43.57 | 51.94 | 49.00 | 69.71 | 69.48 | 61.63 | 51.68 | 39.47 | 33.16 | 51.34 | |||||||||||||
YRS | 89 | 90 | 89 | 90 | 88 | 90 | 89 | 91 | 88 | 88 | 90 | 90 | 76 |