YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1935 | 45.67 | j | 50.39 | 48.68 | 58.93 | 64.19 | 77.43 | 82.06 | 81.45 | 73.93 | 59.68 | 47.13 | 45.46 | c | 62.67 | a | ||||||||||
1936 | 42.90 | 44.31 | 55.87 | 65.90 | 69.32 | 77.53 | 84.32 | 82.42 | 72.80 | 62.58 | 51.47 | 42.13 | 62.63 | |||||||||||||
1937 | 32.61 | 43.79 | 48.71 | 57.10 | 67.23 | 75.40 | 82.97 | 81.81 | 78.03 | 63.74 | 50.83 | 50.87 | 61.09 | |||||||||||||
1938 | 46.71 | 45.82 | 48.65 | 59.37 | 66.74 | 75.90 | 81.84 | 81.81 | 76.37 | 60.13 | a | 46.57 | 45.48 | 61.28 | ||||||||||||
1939 | 42.70 | a | 40.96 | 51.65 | 60.13 | 68.16 | 74.87 | 81.28 | b | 83.47 | a | 71.73 | 60.97 | a | 52.96 | c | 45.88 | e | 61.23 | |||||||
1940 | 46.41 | b | 47.62 | 54.34 | b | 59.70 | 71.23 | a | 79.00 | 80.27 | a | 81.85 | d | 71.87 | 62.68 | 48.89 | b | 47.70 | h | 63.99 | a | |||||
1941 | 44.55 | 50.13 | e | 51.67 | a | 55.14 | b | 68.19 | 72.23 | d | 79.87 | 77.45 | 66.07 | 58.68 | 50.50 | 45.55 | 60.00 | |||||||||
1942 | 44.93 | a | 43.89 | 48.97 | 58.48 | a | 65.23 | 74.20 | 84.13 | a | 79.42 | 69.50 | 61.29 | 50.93 | 43.30 | a | 60.36 | |||||||||
1943 | 43.16 | 48.29 | 52.47 | a | 59.80 | 68.30 | a | 67.97 | 80.81 | 78.71 | 74.33 | 62.32 | 50.03 | 45.00 | 60.93 | |||||||||||
1944 | 41.17 | a | 42.07 | b | 49.64 | c | 56.90 | 65.19 | 69.07 | a | 77.13 | 78.81 | 71.90 | a | 61.73 | a | 48.80 | 45.81 | 59.02 | |||||||
1945 | 42.58 | 46.54 | 48.13 | 56.00 | a | 68.74 | 73.38 | a | 82.55 | 80.19 | 75.13 | 65.03 | 49.52 | a | 41.40 | a | 60.77 | |||||||||
1946 | 42.77 | 41.68 | 51.71 | 63.27 | 67.81 | 77.90 | 81.52 | 82.00 | 75.27 | 57.74 | 47.43 | 46.87 | 61.33 | |||||||||||||
1947 | 41.03 | 48.93 | 55.45 | 61.20 | 70.58 | 75.83 | 81.84 | 78.23 | 74.77 | 62.16 | 47.13 | 42.84 | 61.67 | |||||||||||||
1948 | 41.77 | 42.45 | 45.71 | 58.87 | 65.61 | 74.13 | 79.58 | 78.16 | 72.67 | 62.90 | 48.05 | i | 38.81 | 60.06 | a | |||||||||||
1949 | 33.87 | 39.29 | 48.45 | 59.30 | 64.23 | 76.43 | 82.03 | a | 78.13 | 76.57 | 59.06 | 54.57 | 40.48 | 59.37 | ||||||||||||
1950 | 36.29 | 47.71 | 52.32 | 62.13 | 65.29 | 73.63 | 81.55 | 78.97 | 71.38 | a | 63.61 | 53.07 | 48.35 | 61.19 | ||||||||||||
1951 | 42.50 | a | 44.75 | 50.32 | 58.60 | 66.61 | 72.70 | 81.87 | 78.26 | 73.20 | 61.65 | 49.00 | 40.81 | 60.02 | ||||||||||||
1952 | 39.35 | 45.07 | 46.52 | 58.83 | 70.00 | 71.50 | 79.42 | 82.71 | 74.77 | 64.71 | 48.33 | 42.45 | 60.31 | |||||||||||||
1953 | 47.16 | 45.21 | 50.94 | 56.93 | 60.03 | 72.60 | 84.48 | 79.29 | 72.57 | 61.77 | 53.17 | 42.13 | 60.52 | |||||||||||||
1954 | 41.19 | 52.89 | 48.87 | 62.43 | 68.29 | 73.30 | 82.60 | a | 77.10 | 73.23 | 62.87 | 54.00 | 43.97 | 61.73 | ||||||||||||
1955 | 41.26 | 42.64 | 49.71 | 54.23 | 63.61 | 72.83 | 79.10 | a | 79.16 | 72.23 | 64.61 | 50.30 | 44.77 | 59.54 | ||||||||||||
1956 | 44.03 | 39.79 | a | 49.32 | 58.30 | 66.97 | 76.43 | 80.87 | 77.10 | 76.60 | 59.55 | 48.77 | 45.10 | 60.24 | ||||||||||||
1957 | 42.42 | 50.14 | 52.68 | 58.83 | 62.90 | 78.37 | 82.10 | 80.03 | 72.93 | 59.35 | 47.80 | 44.68 | 61.02 | |||||||||||||
1958 | 42.30 | a | 47.75 | 47.29 | 58.43 | 71.35 | 76.60 | 79.77 | 82.71 | 76.14 | a | 66.39 | 50.57 | 46.06 | 62.11 | |||||||||||
1959 | 44.58 | 43.33 | a | 54.13 | 62.80 | 66.37 | a | 78.87 | 85.07 | a | 79.10 | a | 71.37 | 62.39 | 52.90 | 46.06 | 62.25 | |||||||||
1960 | 38.35 | 42.72 | 54.58 | 60.50 | 65.45 | 79.50 | 82.52 | 80.39 | 75.10 | 60.87 | 50.47 | 42.10 | 61.05 | |||||||||||||
1961 | 46.16 | 46.50 | 51.26 | 59.07 | 65.87 | 80.03 | 82.84 | 78.55 | 67.13 | 59.61 | 47.24 | a | 41.29 | 60.46 | ||||||||||||
1962 | 43.48 | 46.71 | 44.77 | 63.47 | 63.42 | 74.45 | a | 81.10 | a | 81.29 | 74.60 | 61.42 | 52.37 | 46.48 | 61.13 | |||||||||||
1963 | 38.47 | a | 51.25 | 49.81 | 53.97 | 67.48 | 70.80 | 81.29 | 80.77 | 73.97 | 64.40 | a | 52.27 | 43.00 | 60.62 | |||||||||||
1964 | 38.26 | 40.90 | 47.06 | 56.40 | 64.16 | 72.21 | b | 81.90 | 80.48 | 71.67 | 66.81 | 47.13 | 43.26 | 59.19 | ||||||||||||
1965 | 44.87 | a | 44.15 | a | 48.65 | 57.73 | 64.42 | 69.24 | a | 80.39 | 79.97 | 68.63 | 62.74 | 52.97 | 44.00 | 59.81 | ||||||||||
1966 | 38.39 | 40.93 | 51.23 | 60.80 | 68.52 | 75.96 | b | 81.39 | 82.43 | a | 73.79 | a | 60.74 | 51.03 | a | 45.52 | 60.89 | |||||||||
1967 | 43.00 | 45.71 | 51.16 | 50.13 | 66.10 | 72.60 | 83.87 | 83.62 | b | 75.00 | 62.84 | 54.07 | 40.55 | b | 60.72 | |||||||||||
1968 | 43.42 | 52.24 | 52.32 | 54.17 | 64.03 | 73.43 | 80.87 | 76.23 | 72.43 | 61.26 | 51.33 | 38.58 | 60.03 | |||||||||||||
1969 | 45.68 | 45.68 | 49.06 | 57.30 | 67.90 | 72.57 | 80.19 | 84.17 | a | 74.30 | 59.65 | 53.73 | 44.10 | 61.19 | ||||||||||||
1970 | 41.32 | 48.68 | 50.48 | 51.83 | a | 66.81 | 75.27 | 79.71 | 81.39 | 70.87 | 59.40 | a | 50.83 | 42.48 | 59.92 | |||||||||||
1971 | 41.97 | a | 46.67 | a | 50.35 | 57.73 | 61.10 | 74.73 | 83.81 | 78.84 | 72.20 | 55.90 | 48.38 | a | 40.48 | 59.35 | ||||||||||
1972 | 39.77 | 48.00 | 57.71 | 59.47 | 66.77 | 75.73 | 82.90 | 79.10 | 71.93 | 58.74 | 47.87 | 40.00 | 60.67 | |||||||||||||
1973 | 40.13 | 47.32 | ----- | z | 57.53 | 69.70 | a | 79.23 | 83.10 | b | 79.58 | 70.93 | 60.65 | 48.47 | 45.39 | 62.00 | a | |||||||||
1974 | 41.63 | a | 45.79 | 53.32 | 58.03 | 66.52 | 78.50 | 80.29 | 78.48 | 76.30 | 62.65 | 50.63 | 40.71 | 61.07 | ||||||||||||
1975 | 40.58 | 42.04 | 47.77 | 51.53 | 65.58 | 74.67 | 82.26 | 77.52 | 75.34 | a | 59.61 | 49.43 | 45.77 | 59.34 | ||||||||||||
1976 | 43.97 | 48.93 | 49.68 | 54.43 | 68.26 | 76.27 | 80.94 | 75.77 | 70.69 | a | 61.65 | 51.03 | 41.55 | 60.26 | ||||||||||||
1977 | 42.90 | 48.18 | 46.42 | 59.63 | 60.77 | 77.60 | 82.43 | a | 81.42 | 71.73 | 63.94 | 52.93 | 46.87 | 61.24 | ||||||||||||
1978 | 44.74 | 47.82 | 54.81 | 56.60 | 66.32 | 77.87 | 83.19 | 78.42 | 71.53 | 65.26 | 49.17 | 39.74 | 61.29 | |||||||||||||
1979 | 38.47 | a | 42.11 | 50.03 | 57.60 | 65.65 | 75.60 | 79.39 | 76.16 | 74.33 | 61.58 | 48.30 | 43.77 | 59.42 | ||||||||||||
1980 | 47.55 | 49.45 | 49.45 | 57.50 | 62.16 | 73.38 | a | 82.97 | 78.45 | 72.93 | 61.68 | 51.27 | 47.74 | 61.21 | ||||||||||||
1981 | 47.16 | 46.46 | 52.52 | 61.97 | 66.19 | 80.63 | 83.19 | 81.13 | 75.53 | 59.68 | 52.43 | 45.65 | 62.71 | |||||||||||||
1982 | 41.61 | 49.18 | 50.48 | 59.25 | b | 66.23 | 73.79 | b | 79.97 | 80.35 | 71.04 | b | 58.74 | 48.73 | 41.97 | 60.11 | ||||||||||
1983 | 44.81 | 47.18 | 52.58 | 54.33 | 66.54 | c | 73.10 | 79.07 | a | 77.00 | 76.33 | 62.39 | 51.00 | 45.30 | a | 60.80 | ||||||||||
1984 | 46.45 | 46.62 | 52.71 | 57.70 | 71.03 | 75.07 | 80.71 | 79.48 | 75.50 | 58.26 | 47.77 | 42.90 | 61.18 | |||||||||||||
1985 | 44.03 | 45.56 | a | 49.03 | 61.87 | 67.10 | 77.37 | 83.32 | 79.32 | 66.31 | a | 60.00 | 48.83 | a | 45.90 | 60.72 | ||||||||||
1986 | 48.07 | b | 48.44 | a | 53.55 | b | 55.47 | 62.19 | 76.83 | 77.90 | 81.65 | 65.62 | a | 59.18 | c | 52.77 | d | 43.45 | b | 60.43 | ||||||
1987 | 40.89 | c | 48.64 | c | 50.39 | c | 61.78 | c | 67.65 | e | 77.76 | a | 77.44 | d | 80.26 | 72.83 | a | 63.30 | a | 48.60 | e | 39.54 | c | 60.76 | ||
1988 | 42.41 | b | 46.62 | 51.74 | 57.38 | a | 67.35 | 74.59 | a | 83.42 | 79.03 | 72.93 | 67.17 | a | 51.93 | c | 44.07 | b | 61.55 | |||||||
1989 | 43.93 | a | 46.14 | 56.23 | a | 66.27 | 68.23 | a | 76.83 | 83.58 | 78.97 | a | 73.79 | a | ----- | z | 53.69 | a | 45.35 | 63.00 | a | |||||
1990 | 42.33 | a | 43.89 | 53.23 | 60.34 | a | 65.00 | b | 75.79 | a | 81.60 | a | 78.29 | 73.76 | a | 62.30 | a | 51.04 | b | 37.70 | a | 60.44 | ||||
1991 | 42.03 | b | 50.61 | 44.83 | a | 53.23 | d | 61.37 | d | 68.97 | 76.60 | a | 76.83 | b | 72.93 | a | 64.41 | b | 50.88 | d | 42.97 | b | 58.81 | |||
1992 | 44.04 | f | 49.04 | b | 52.00 | a | 60.14 | b | 68.60 | a | 73.88 | e | 78.94 | 80.54 | c | 73.07 | a | 62.62 | b | 47.89 | b | 39.68 | c | 62.40 | a | |
1993 | 43.46 | c | 46.24 | c | 52.00 | a | 52.75 | f | 65.00 | c | 70.08 | f | 74.94 | 75.69 | b | 68.55 | a | 57.93 | d | 41.65 | d | 36.88 | g | 58.38 | c | |
1994 | 39.97 | b | 44.46 | b | 55.23 | a | 61.64 | b | 66.40 | a | 78.63 | 79.58 | 82.03 | 74.77 | 58.72 | b | 43.97 | 43.33 | a | 60.73 | ||||||
1995 | 45.94 | 52.32 | 52.29 | 55.17 | 62.52 | 73.54 | b | 81.55 | 83.52 | 76.90 | 60.84 | 54.54 | b | 45.00 | a | 62.01 | ||||||||||
1996 | 44.23 | a | 50.28 | 52.68 | 60.07 | a | 69.47 | a | 75.40 | 83.84 | 80.90 | 73.37 | 63.20 | a | 52.96 | d | 43.07 | d | 62.46 | |||||||
1997 | 45.80 | a | 47.25 | 54.97 | 60.33 | 74.61 | 74.83 | 77.29 | 81.68 | i | 77.55 | a | 61.17 | a | 52.47 | 43.81 | d | 60.92 | a | |||||||
1998 | 44.61 | 46.36 | 51.68 | 55.17 | 62.97 | 71.24 | a | 83.06 | 81.35 | 71.52 | a | 59.90 | 50.17 | a | 43.90 | a | 60.16 | |||||||||
1999 | 45.16 | ----- | z | 48.71 | 54.44 | c | 66.30 | a | 75.27 | 80.03 | a | 79.16 | 74.67 | 61.79 | c | 52.13 | 45.10 | 62.07 | a | |||||||
2000 | 46.83 | a | 48.44 | d | 51.53 | a | 63.70 | c | 70.55 | 78.00 | 80.77 | 80.93 | c | 72.27 | d | 61.10 | b | 45.43 | b | 45.35 | 62.08 | |||||
2001 | 42.73 | a | 44.31 | b | 54.74 | 56.40 | 72.69 | b | 77.45 | a | 78.58 | 79.23 | a | 73.57 | 62.40 | a | 54.03 | a | 40.36 | c | 61.37 | |||||
2002 | 43.36 | c | 46.74 | a | 50.66 | b | 60.83 | a | 67.57 | c | 78.00 | b | 83.86 | b | 78.58 | 73.93 | b | 60.79 | b | 54.00 | a | 43.23 | 61.80 | |||
2003 | 50.13 | a | 49.14 | 53.97 | a | 57.00 | e | 69.61 | 76.63 | ----- | z | 82.65 | e | 76.29 | b | 67.76 | b | 48.03 | 44.23 | 61.40 | a | |||||
2004 | 44.61 | 46.28 | 59.62 | b | 61.43 | 69.39 | 76.23 | 82.68 | 80.26 | 71.70 | 60.23 | 48.07 | a | 45.60 | a | 62.17 | ||||||||||
2005 | 45.50 | k | 47.88 | d | 53.52 | 55.24 | a | 68.26 | 73.73 | 82.90 | b | 80.03 | 70.07 | a | 62.06 | 53.36 | b | 42.14 | c | 62.65 | a | |||||
2006 | 43.97 | a | 48.00 | b | 47.75 | c | 55.81 | c | 70.65 | 80.07 | 84.03 | a | 79.50 | a | 72.00 | 59.57 | a | 51.86 | a | 41.82 | c | 61.25 | ||||
2007 | 40.74 | d | 49.84 | c | 55.46 | e | 58.83 | f | 70.78 | d | 75.70 | 82.18 | c | 81.38 | b | 71.61 | b | 61.35 | e | 54.11 | c | 41.90 | a | 62.28 | a | |
2008 | 42.11 | c | 47.29 | a | 52.70 | a | 59.69 | a | 65.11 | c | 77.52 | a | 81.96 | e | 82.71 | c | 75.50 | d | 63.89 | c | 56.79 | f | 45.06 | 63.05 | a | |
2009 | 49.33 | g | 47.82 | 52.32 | c | 59.88 | d | 76.24 | f | 75.20 | 85.89 | d | 80.23 | e | 77.69 | d | 60.03 | a | 53.40 | 42.20 | a | 63.47 | b | |||
2010 | 45.38 | b | 48.89 | a | 51.70 | a | 55.38 | d | 64.00 | 77.11 | b | 84.79 | b | 81.32 | 73.87 | 64.13 | 51.57 | 48.23 | a | 62.20 | ||||||
2011 | 45.97 | a | 45.14 | g | 54.54 | e | 59.79 | a | 64.77 | 75.00 | 81.65 | 83.36 | f | 75.86 | a | 63.37 | a | 49.47 | 41.48 | 61.19 | b | |||||
2012 | 45.52 | 48.00 | 52.00 | b | 60.17 | a | 71.45 | 77.97 | 81.21 | c | 83.39 | 77.73 | 64.07 | c | 52.90 | i | 45.82 | c | 64.30 | a | ||||||
2013 | 45.35 | e | 45.00 | 57.68 | 61.24 | e | 70.13 | h | 79.43 | 84.53 | a | 81.19 | d | 74.47 | 58.45 | 51.83 | a | 45.72 | b | 62.26 | a | |||||
2014 | 49.33 | j | 50.79 | d | 55.71 | c | 61.76 | e | 70.08 | g | 77.00 | f | 85.13 | a | 79.04 | c | 78.10 | a | 66.61 | 52.43 | 47.74 | 64.15 | c | |||
2015 | 46.50 | c | 52.32 | 58.84 | 60.43 | b | 65.03 | 79.38 | a | 80.42 | 85.10 | 77.96 | b | 68.50 | a | 50.46 | b | 41.61 | 63.88 | |||||||
2016 | 44.63 | a | 53.45 | 57.38 | e | 62.14 | b | 67.88 | e | 81.33 | f | 84.71 | g | 83.04 | d | 72.30 | 67.56 | f | 54.07 | b | 45.65 | 60.06 | c | |||
2017 | 46.07 | c | 51.18 | f | 57.67 | g | 62.14 | b | 68.55 | t | 80.13 | 86.12 | f | 82.44 | f | 77.55 | j | 66.61 | h | 55.83 | f | 47.38 | r | 62.78 | i | |
2018 | 48.75 | o | 47.18 | 51.67 | p | 64.43 | i | 69.87 | 77.53 | 86.23 | 84.93 | a | 78.50 | 65.16 | 52.48 | a | 46.52 | 67.60 | c | |||||||
2019 | 46.45 | 42.04 | 52.80 | a | 62.87 | 64.24 | b | 77.48 | g | 83.71 | 84.03 | 74.53 | 59.16 | 51.83 | 44.90 | b | 60.60 | a | ||||||||
2020 | 41.87 | a | 46.52 | b | 50.89 | d | 60.43 | b | 73.35 | 75.48 | a | 83.06 | 87.68 | c | 80.00 | a | 64.62 | b | 50.64 | b | 44.75 | c | 63.27 | |||
2021 | 44.42 | 48.39 | 50.14 | b | 64.18 | b | 70.18 | c | 80.73 | 87.03 | a | 82.52 | 76.90 | 59.97 | 56.37 | 43.30 | a | 63.68 | ||||||||
2022 | 45.06 | 47.29 | 53.61 | 62.57 | 69.00 | 79.14 | b | 86.13 | 83.77 | 79.83 | g | 68.03 | a | 51.96 | b | 43.52 | b | 62.74 | a | |||||||
2023 | 44.63 | a | 45.30 | a | 50.80 | a | 58.64 | e | 70.52 | h | 74.07 | a | 88.65 | 83.37 | d | 74.07 | b | 66.24 | b | 52.97 | 47.58 | 62.39 | a | |||
2024 | 45.10 | 49.76 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 47.43 | j | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 43.16 | 46.70 | 51.60 | 58.78 | 66.88 | 75.60 | 81.83 | 80.37 | 73.52 | 61.95 | 50.68 | 43.78 | 60.95 | |||||||||||||
S.D. | 3.01 | 3.08 | 3.07 | 3.18 | 2.94 | 2.81 | 2.38 | 2.32 | 2.80 | 2.59 | 2.61 | 2.49 | 1.08 | |||||||||||||
SKEW | -0.87 | -0.23 | 0.20 | -0.24 | 0.05 | -0.41 | -0.09 | 0.33 | -0.46 | 0.43 | -0.61 | -0.08 | 0.43 | |||||||||||||
MAX | 50.13 | 53.45 | 59.62 | 66.27 | 74.61 | 80.73 | 88.65 | 87.68 | 80.00 | 68.50 | 56.37 | 50.87 | 63.88 | |||||||||||||
MIN | 32.61 | 39.29 | 44.77 | 50.13 | 60.03 | 67.97 | 74.94 | 75.69 | 65.62 | 55.90 | 41.65 | 37.70 | 58.81 | |||||||||||||
YRS | 84 | 87 | 86 | 86 | 84 | 85 | 86 | 86 | 87 | 86 | 85 | 86 | 65 |