YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1948 | 57.65 | 50.72 | 52.39 | 69.63 | 78.65 | 85.50 | 90.03 | 87.29 | 86.40 | 73.16 | 58.27 | 51.00 | 70.06 | |||||||||||||
1949 | 35.97 | 44.43 | 58.10 | 71.17 | 74.74 | 84.57 | 89.45 | 89.35 | 84.83 | 68.58 | 69.47 | 49.39 | 68.34 | |||||||||||||
1950 | 49.23 | 60.00 | 63.06 | 73.50 | 77.06 | 87.50 | 85.74 | 89.06 | 80.67 | 81.16 | 68.23 | 61.84 | 73.09 | |||||||||||||
1951 | 51.74 | 53.46 | 59.45 | 66.53 | 76.29 | 85.57 | 92.23 | 85.65 | 86.60 | 72.19 | 58.30 | 48.19 | 69.68 | |||||||||||||
1952 | 48.61 | 53.48 | 50.16 | 66.17 | 79.52 | 84.83 | 88.55 | 88.29 | 84.63 | 81.13 | 55.17 | 50.39 | 69.24 | |||||||||||||
1953 | 59.16 | 55.04 | 61.94 | 66.60 | 69.71 | 86.93 | 88.61 | 86.97 | 87.90 | 73.39 | 63.53 | 51.42 | 70.93 | |||||||||||||
1954 | 52.39 | 62.89 | 56.74 | 74.03 | 79.84 | 85.30 | 90.42 | 85.10 | 84.07 | 76.94 | 66.23 | 52.84 | 72.23 | |||||||||||||
1955 | 44.03 | 50.14 | 61.39 | 66.13 | 74.81 | 84.77 | 87.06 | 84.71 | 85.23 | 77.10 | 59.97 | 55.81 | 69.26 | |||||||||||||
1956 | 55.58 | 50.28 | 64.81 | 65.93 | 79.19 | 89.17 | 88.65 | 86.61 | 89.13 | 72.26 | 61.07 | 53.81 | 71.37 | |||||||||||||
1957 | 47.39 | 59.39 | 59.68 | 64.60 | 70.23 | 87.57 | 89.81 | 85.03 | 84.90 | 66.35 | 54.53 | 56.65 | 68.84 | |||||||||||||
1958 | 53.19 | 57.68 | 51.45 | 65.60 | 81.48 | 87.47 | 91.03 | 88.94 | 81.10 | 73.55 | 60.53 | 62.13 | 71.18 | |||||||||||||
1959 | 55.77 | 51.36 | 63.65 | 72.17 | 74.84 | 89.93 | 93.68 | 83.55 | 81.37 | 74.87 | 62.77 | 51.84 | 71.32 | |||||||||||||
1960 | 43.32 | 49.66 | 65.84 | 71.10 | 77.84 | 90.73 | 92.39 | 90.65 | 86.00 | 68.87 | 61.50 | 51.87 | 70.81 | |||||||||||||
1961 | 56.03 | 57.93 | 59.45 | 70.03 | 76.55 | 91.20 | 91.87 | 86.52 | 79.57 | 72.13 | 56.70 | 48.45 | 70.54 | |||||||||||||
1962 | 49.03 | 53.57 | 55.10 | 75.57 | 74.10 | 86.13 | 90.00 | 91.74 | 83.63 | 73.97 | 65.83 | 56.23 | 71.24 | |||||||||||||
1963 | 49.57 | a | 62.04 | 59.45 | 64.47 | 80.16 | 83.30 | 92.61 | 84.52 | 84.00 | 75.65 | 60.47 | 56.29 | 71.04 | ||||||||||||
1964 | 49.90 | 51.97 | 55.77 | 63.17 | 75.58 | 84.20 | 90.19 | 85.45 | 81.80 | 78.48 | 55.10 | 51.00 | 68.55 | |||||||||||||
1965 | 53.55 | 54.04 | 55.52 | 62.07 | 70.52 | 78.83 | 85.97 | 86.39 | 77.23 | 76.68 | 61.73 | 48.94 | 67.62 | |||||||||||||
1966 | 47.90 | 49.18 | 63.42 | 70.80 | 79.13 | 84.63 | 89.26 | 86.94 | 81.53 | 72.26 | 63.43 | 51.35 | 69.99 | |||||||||||||
1967 | 53.87 | 60.57 | 63.87 | 61.53 | 75.90 | 81.20 | 88.39 | 86.87 | 80.53 | 76.16 | 64.67 | 41.55 | 69.59 | |||||||||||||
1968 | 42.81 | 59.07 | 61.13 | 64.03 | 75.26 | 86.70 | 85.90 | 81.23 | 82.83 | 73.19 | 59.97 | 52.42 | 68.71 | |||||||||||||
1969 | 55.45 | 51.18 | 57.39 | 69.00 | 78.10 | 82.87 | 87.84 | 88.55 | 82.50 | 66.68 | 58.50 | 54.77 | 69.40 | |||||||||||||
1970 | 52.13 | 58.39 | 56.65 | 61.97 | 78.29 | 86.37 | 90.19 | 85.97 | 79.17 | 68.42 | 63.20 | 49.74 | 69.21 | |||||||||||||
1971 | 55.06 | 55.04 | 64.35 | 66.73 | 71.26 | 86.20 | 92.16 | 83.58 | 81.33 | 64.74 | 59.23 | 44.29 | 68.67 | |||||||||||||
1972 | 54.52 | 60.97 | 70.68 | 70.47 | 77.71 | 84.03 | 92.23 | 87.61 | 82.87 | 67.52 | 54.97 | 46.61 | 70.85 | |||||||||||||
1973 | 47.23 | 51.18 | 49.29 | 62.57 | 76.68 | 84.67 | 89.45 | 86.35 | 82.50 | 74.06 | 59.10 | 54.35 | 68.12 | |||||||||||||
1974 | 48.19 | 54.57 | 60.77 | 66.90 | 77.00 | 91.57 | 86.29 | 86.45 | 80.87 | 68.16 | 59.33 | 47.90 | 69.00 | |||||||||||||
1975 | 51.77 | 52.57 | 55.03 | 58.37 | 74.10 | 84.63 | 88.10 | 88.39 | 81.90 | 71.26 | 60.03 | 50.26 | 68.03 | |||||||||||||
1976 | 54.42 | 54.90 | 55.71 | 62.57 | 75.45 | 85.70 | 87.77 | 87.23 | 76.93 | 68.39 | 63.03 | 54.19 | 68.86 | |||||||||||||
1977 | 47.55 | 58.36 | 55.26 | 69.87 | 70.23 | 88.37 | 90.00 | 87.52 | 81.43 | 72.48 | 63.40 | 57.26 | 70.14 | |||||||||||||
1978 | 49.32 | 51.18 | 59.84 | 63.10 | 74.65 | 88.43 | 91.65 | 88.52 | 80.97 | 74.29 | 55.80 | 44.45 | 68.52 | |||||||||||||
1979 | 41.45 | 51.57 | 56.61 | 67.10 | 73.10 | 86.33 | 90.06 | 86.10 | 88.03 | 77.16 | 58.43 | 55.55 | 69.29 | |||||||||||||
1980 | 49.48 | 58.62 | 56.06 | 67.57 | 72.23 | 88.80 | 91.42 | 87.74 | 84.17 | 71.74 | 63.97 | 59.35 | 70.93 | |||||||||||||
1981 | 55.35 | 60.57 | 60.10 | 73.17 | 77.65 | 91.67 | 88.45 | 87.42 | 81.67 | 66.94 | 63.40 | 54.68 | 71.75 | |||||||||||||
1982 | 47.77 | 53.68 | 56.32 | 63.97 | 72.19 | 86.27 | 88.52 | 83.55 | 78.70 | 70.39 | 57.47 | 48.97 | 67.32 | |||||||||||||
1983 | 51.35 | 52.68 | 53.97 | 57.27 | 72.45 | 80.07 | 87.61 | 85.81 | 82.63 | 69.16 | 57.87 | 52.77 | 66.97 | |||||||||||||
1984 | 53.03 | 56.24 | 62.03 | 64.07 | 83.68 | 84.20 | 85.97 | 83.71 | 82.23 | 65.68 | 58.27 | 46.16 | 68.77 | |||||||||||||
1985 | 47.10 | 50.89 | 55.55 | 69.33 | 74.87 | 87.77 | 88.94 | 87.29 | 76.43 | 70.84 | 56.03 | 54.65 | 68.31 | |||||||||||||
1986 | 60.87 | 56.86 | 63.81 | 68.43 | 78.45 | 87.77 | 87.03 | 87.19 | 76.50 | 67.71 | 61.20 | 51.81 | 70.64 | |||||||||||||
1987 | 50.10 | 52.04 | 55.45 | 72.03 | 74.71 | 89.10 | 88.13 | 85.26 | 82.23 | 74.87 | 57.67 | 47.71 | 69.11 | |||||||||||||
1988 | 51.32 | 59.10 | 62.87 | 67.10 | 75.74 | 87.47 | 90.55 | 85.61 | 81.07 | 78.58 | 60.33 | 51.81 | 70.96 | |||||||||||||
1989 | 49.61 | 56.89 | 67.77 | 77.10 | 79.03 | 87.97 | 92.45 | 87.00 | 84.87 | 73.29 | 64.83 | 56.45 | 73.11 | |||||||||||||
1990 | 48.81 | 52.36 | 61.45 | 68.93 | 74.77 | 91.00 | 86.84 | 85.84 | 82.63 | 75.45 | 62.60 | 47.58 | 69.86 | |||||||||||||
1991 | 50.71 | 62.54 | 52.81 | 67.10 | 73.26 | 82.80 | 90.84 | 88.10 | 81.63 | 75.35 | 59.30 | 48.29 | 69.39 | |||||||||||||
1992 | 50.13 | 56.07 | 57.77 | 73.43 | 75.26 | 84.43 | 88.48 | 85.45 | 84.73 | 75.00 | 56.87 | 47.29 | 69.58 | |||||||||||||
1993 | 49.71 | 49.43 | 61.84 | 69.83 | 77.48 | 84.77 | 88.16 | 86.19 | 84.37 | 70.39 | 56.93 | 53.68 | 69.40 | |||||||||||||
1994 | 55.39 | 52.11 | 62.00 | 67.90 | 75.06 | 90.73 | 91.19 | 89.84 | ----- | z | 69.94 | 55.00 | 52.39 | 69.23 | a | |||||||||||
1995 | 49.23 | 61.71 | 60.23 | 64.40 | 70.23 | 83.53 | 92.48 | 91.97 | 84.63 | 77.26 | 69.27 | 56.55 | 71.79 | |||||||||||||
1996 | 56.45 | 60.10 | 63.52 | 73.20 | 81.39 | 91.07 | 92.48 | 91.84 | 79.73 | 71.71 | 62.40 | 55.23 | 73.26 | |||||||||||||
1997 | 49.58 | 55.86 | 68.39 | ----- | z | 83.06 | 84.70 | 91.87 | 87.45 | 82.50 | 71.19 | 62.50 | 48.45 | 71.41 | a | |||||||||||
1998 | 53.68 | 48.64 | 58.48 | 61.63 | 71.87 | 82.69 | a | 90.81 | 90.10 | 81.57 | 70.77 | 62.67 | 54.06 | 68.91 | ||||||||||||
1999 | 57.97 | 59.79 | 62.52 | 60.47 | 75.32 | 84.00 | 84.13 | 84.23 | 80.30 | 75.55 | 67.83 | 52.77 | 70.41 | |||||||||||||
2000 | 55.26 | 56.97 | 58.10 | 72.53 | 82.00 | 87.67 | 90.48 | 84.90 | 84.60 | 67.81 | 53.07 | 56.61 | 70.83 | |||||||||||||
2001 | 47.03 | 51.93 | 61.65 | 65.50 | 82.32 | 88.20 | 88.06 | 87.10 | 85.97 | 75.03 | 61.40 | 48.77 | 70.25 | |||||||||||||
2002 | 52.48 | 60.43 | 60.97 | 71.57 | 78.61 | 90.43 | 91.84 | 90.29 | 82.23 | 69.29 | 62.23 | 49.90 | 71.69 | |||||||||||||
2003 | 60.58 | 52.93 | 59.55 | 63.63 | 79.00 | 87.60 | 93.71 | 85.97 | 84.50 | 79.58 | 57.63 | 53.00 | 71.47 | |||||||||||||
2004 | 50.87 | 50.28 | 70.32 | 66.50 | 79.52 | 87.47 | 90.10 | 86.10 | 81.47 | 67.58 | 54.40 | 52.10 | 69.72 | |||||||||||||
2005 | 50.42 | 51.32 | 57.06 | 65.87 | 77.65 | 83.90 | 92.39 | 83.61 | 82.60 | 71.94 | 63.33 | 55.65 | 69.64 | |||||||||||||
2006 | 55.55 | 59.61 | 54.58 | 68.53 | 81.03 | 90.89 | b | 89.00 | 85.06 | 79.17 | 69.61 | 64.23 | 53.23 | e | 70.88 | |||||||||||
2007 | 49.42 | 56.54 | 65.58 | 70.33 | 79.84 | 89.33 | 91.45 | 89.94 | 83.07 | 73.32 | 67.78 | c | 48.35 | 72.08 | ||||||||||||
2008 | 48.19 | 55.10 | 63.06 | 69.77 | 73.42 | 89.80 | 89.47 | a | 88.71 | 84.50 | 75.94 | 64.57 | 50.65 | 71.10 | ||||||||||||
2009 | 56.84 | 56.32 | 63.48 | 66.73 | 81.55 | 82.47 | 92.06 | 90.61 | 84.87 | 70.23 | 65.63 | 46.81 | 71.47 | |||||||||||||
2010 | 52.27 | a | 52.54 | 59.30 | a | 65.23 | 73.58 | 86.80 | 90.19 | 86.58 | 88.00 | 71.13 | 61.76 | e | 55.39 | 70.23 | ||||||||||
2011 | 52.77 | 51.21 | 64.32 | 68.40 | 73.74 | 87.53 | 90.23 | 92.84 | 85.10 | 75.00 | 59.07 | 48.58 | 70.73 | |||||||||||||
2012 | 58.03 | 56.32 | a | 62.52 | 71.80 | 81.58 | 90.67 | 88.03 | 89.00 | 83.33 | 76.16 | 65.87 | 50.71 | 72.84 | ||||||||||||
2013 | 49.68 | 52.18 | 66.81 | 70.40 | 78.26 | 92.30 | 89.16 | 86.03 | 79.97 | 70.13 | 61.43 | 52.19 | 70.71 | |||||||||||||
2014 | 60.45 | 61.04 | 64.48 | 69.93 | 77.87 | 89.47 | 89.84 | 84.03 | 82.20 | 76.65 | 63.57 | 52.68 | 72.68 | |||||||||||||
2015 | 55.61 | 64.61 | 67.48 | 69.00 | 71.32 | 90.13 | 86.26 | 89.45 | 85.77 | 73.32 | 58.07 | 51.13 | 71.85 | |||||||||||||
2016 | 53.13 | 64.97 | 66.63 | a | 67.69 | a | 73.77 | 91.90 | 92.29 | 84.35 | 79.33 | 76.23 | 63.13 | 52.71 | 72.18 | |||||||||||
2017 | 48.74 | 57.93 | 67.65 | 70.97 | 76.42 | 92.60 | 90.03 | 87.35 | 81.53 | 77.90 | 69.33 | 60.61 | 73.42 | |||||||||||||
2018 | 59.68 | 56.50 | 62.03 | 74.27 | 78.60 | a | 90.00 | 90.39 | 87.42 | 86.80 | 67.74 | 61.10 | 53.39 | 72.33 | ||||||||||||
2019 | 53.26 | 46.50 | 60.68 | 70.33 | 69.03 | 86.77 | 91.13 | 92.65 | 81.97 | 71.97 | 63.10 | 49.87 | 69.77 | |||||||||||||
2020 | 54.90 | 57.48 | 57.37 | a | 68.13 | 80.61 | 86.30 | 91.84 | 93.35 | 86.90 | 79.06 | 64.07 | 53.06 | 72.76 | ||||||||||||
2021 | 51.16 | 55.29 | 57.39 | 71.07 | 78.10 | 91.10 | 87.65 | 86.74 | 82.53 | 68.65 | 67.20 | 52.16 | 70.75 | |||||||||||||
2022 | 54.42 | 55.11 | 61.77 | 71.50 | 79.45 | 88.57 | 89.42 | 84.68 | 83.07 | 70.58 | 55.97 | a | 52.32 | 70.57 | ||||||||||||
2023 | 47.58 | 51.14 | 54.55 | 70.63 | 75.58 | 82.37 | 95.71 | 89.58 | 83.23 | 75.65 | 63.40 | 57.42 | 70.57 | |||||||||||||
2024 | 51.26 | 54.66 | 56.59 | d | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 54.17 | i | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 51.70 | 55.22 | 60.14 | 67.88 | 76.44 | 86.98 | 89.80 | 87.17 | 82.77 | 72.68 | 61.19 | 52.11 | 70.33 | |||||||||||||
S.D. | 4.52 | 4.32 | 4.63 | 4.03 | 3.48 | 3.07 | 2.19 | 2.45 | 2.71 | 3.83 | 3.93 | 3.92 | 1.50 | |||||||||||||
SKEW | -0.42 | 0.12 | 0.01 | -0.26 | -0.11 | -0.21 | -0.11 | 0.45 | -0.07 | 0.09 | 0.09 | 0.11 | 0.06 | |||||||||||||
MAX | 60.87 | 64.97 | 70.68 | 77.10 | 83.68 | 92.60 | 95.71 | 93.35 | 89.13 | 81.16 | 69.47 | 62.13 | 73.42 | |||||||||||||
MIN | 35.97 | 44.43 | 49.29 | 57.27 | 69.03 | 78.83 | 84.13 | 81.23 | 76.43 | 64.74 | 53.07 | 41.55 | 66.97 | |||||||||||||
YRS | 77 | 77 | 77 | 75 | 76 | 76 | 76 | 76 | 75 | 76 | 76 | 76 | 74 |