YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1964 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 74.02 | a | 55.79 | a | 52.63 | a | 60.81 | i |
1965 | 54.50 | 54.25 | 57.26 | 65.38 | 72.35 | 77.67 | 90.13 | 88.23 | 79.18 | 73.08 | 62.02 | a | 53.76 | d | 68.98 | |||||||||||
1966 | 49.08 | 51.23 | 61.27 | a | 68.32 | 78.30 | a | 83.97 | 90.21 | 89.15 | 82.58 | 70.66 | 61.25 | 52.65 | 69.89 | |||||||||||
1967 | 51.40 | 57.59 | 62.44 | 61.75 | 74.61 | 81.93 | ----- | z | 89.92 | 83.33 | 73.63 | 63.88 | 48.61 | 68.10 | a | |||||||||||
1968 | 53.03 | 60.38 | a | 59.69 | 67.02 | 75.18 | a | 84.20 | 88.60 | 85.19 | 81.35 | 70.81 | 58.70 | 48.28 | a | 69.37 | ||||||||||
1969 | 54.98 | 53.36 | 56.77 | 67.63 | 77.92 | 81.68 | 91.18 | 92.28 | a | 83.35 | 66.63 | 59.85 | 52.81 | 69.87 | ||||||||||||
1970 | 49.95 | 58.36 | 58.18 | 63.66 | a | 78.07 | a | 85.87 | 92.65 | 90.56 | 79.59 | a | 66.69 | 59.10 | 50.94 | 69.47 | ||||||||||
1971 | 51.11 | 54.77 | 62.71 | 67.17 | 72.66 | 84.00 | 92.45 | 88.02 | a | 83.37 | 69.17 | d | 58.82 | 49.97 | a | 69.52 | ||||||||||
1972 | 50.37 | 58.12 | a | 69.18 | a | 69.92 | 77.50 | 86.70 | 92.23 | a | 88.65 | 82.43 | 70.66 | 55.83 | 49.97 | a | 70.96 | |||||||||
1973 | 49.55 | 55.91 | 54.84 | 65.93 | 79.39 | 87.12 | a | 90.40 | 89.20 | a | 80.82 | 71.53 | 57.90 | 53.42 | a | 69.67 | ||||||||||
1974 | 52.11 | 54.91 | 63.39 | 69.10 | 77.47 | 89.12 | 90.19 | 87.63 | 84.72 | 73.23 | 59.58 | 49.65 | 70.92 | |||||||||||||
1975 | 51.76 | 53.88 | 58.97 | 61.53 | 74.21 | 83.92 | 91.31 | 89.11 | 84.63 | 70.31 | 59.87 | 53.50 | 69.42 | |||||||||||||
1976 | 53.74 | 59.36 | 60.50 | 66.55 | 78.69 | 85.95 | 90.95 | 88.48 | 81.27 | 69.77 | 60.63 | 52.65 | 70.71 | |||||||||||||
1977 | 51.82 | 58.96 | a | 57.90 | 69.80 | 72.15 | 87.08 | 91.29 | 90.23 | 83.13 | 74.47 | 61.90 | 55.81 | 71.21 | ||||||||||||
1978 | 52.97 | 55.77 | 63.50 | 66.07 | 75.45 | 86.98 | d | 91.19 | 88.08 | 83.83 | 76.48 | 59.92 | 49.44 | 70.81 | ||||||||||||
1979 | 48.56 | 54.23 | 60.27 | a | 67.45 | 77.08 | 86.68 | 90.90 | 86.79 | 87.67 | 74.11 | 58.55 | 54.68 | 70.58 | ||||||||||||
1980 | 55.71 | 59.17 | 59.34 | 67.93 | 73.44 | 85.60 | 93.42 | 89.55 | 84.22 | 73.65 | 61.28 | 58.35 | 71.80 | |||||||||||||
1981 | 56.90 | 58.80 | 61.29 | 72.70 | 78.03 | 91.17 | 92.95 | 92.16 | 85.28 | 70.58 | 62.73 | 55.19 | 73.15 | |||||||||||||
1982 | 51.97 | 58.68 | 59.71 | 68.80 | 76.94 | 83.80 | 89.24 | 90.90 | 84.08 | 70.19 | 59.00 | a | 51.48 | a | 70.40 | |||||||||||
1983 | 53.50 | 55.69 | a | 59.74 | 64.05 | a | 76.98 | 84.73 | 91.66 | 89.52 | 87.33 | 73.47 | 60.65 | 54.08 | 70.95 | |||||||||||
1984 | 55.31 | 56.78 | 64.11 | 67.98 | 83.32 | 85.98 | 90.10 | a | 88.81 | 84.75 | 68.65 | 58.62 | 52.31 | 71.39 | ||||||||||||
1985 | 52.27 | 54.80 | 60.63 | 72.68 | 79.31 | 88.73 | 92.03 | 90.65 | 78.83 | 72.32 | 58.30 | 53.28 | a | 71.15 | ||||||||||||
1986 | 58.50 | 58.32 | 66.42 | 70.80 | 78.81 | 88.75 | 89.45 | 92.18 | 79.53 | 70.60 | 61.60 | 53.72 | a | 72.39 | ||||||||||||
1987 | 51.66 | 57.20 | 60.02 | 74.66 | a | 79.15 | a | 88.38 | b | 89.19 | 89.87 | 83.38 | 77.00 | 60.25 | 50.03 | 71.73 | ||||||||||
1988 | 52.48 | 59.45 | 63.47 | 69.12 | 77.52 | 88.00 | 92.24 | 89.53 | 82.32 | 78.52 | b | 60.38 | a | 53.26 | 72.19 | |||||||||||
1989 | 53.00 | 58.86 | 66.87 | a | 76.37 | 79.97 | 87.30 | 94.06 | 89.82 | 85.43 | 73.66 | 63.82 | 53.32 | 73.54 | ||||||||||||
1990 | 53.89 | 55.04 | 64.65 | 73.66 | b | 77.89 | 89.93 | a | 92.44 | 88.68 | 85.10 | 75.02 | 62.93 | 51.69 | 72.58 | |||||||||||
1991 | 53.66 | 62.98 | 58.02 | 68.57 | 76.53 | a | 83.95 | 92.45 | 91.90 | 85.85 | 76.94 | 61.22 | 55.74 | 72.32 | ||||||||||||
1992 | 54.26 | 60.29 | 62.23 | 73.52 | 80.71 | 86.64 | b | 91.10 | 91.16 | 86.18 | 75.53 | 58.42 | 51.74 | 72.65 | ||||||||||||
1993 | 56.53 | a | 57.04 | 63.63 | 70.95 | 81.81 | b | 87.15 | 90.53 | 90.86 | b | 85.17 | 74.29 | 59.23 | 54.26 | 72.62 | ||||||||||
1994 | 53.83 | a | 56.38 | 64.85 | a | 71.37 | 77.84 | 92.11 | b | 94.00 | 95.19 | 87.16 | a | 71.92 | 57.73 | 55.03 | 73.12 | |||||||||
1995 | 54.29 | 62.96 | a | 64.05 | 67.34 | a | 75.21 | 85.13 | 93.55 | 95.08 | a | 89.63 | 75.76 | 66.28 | 56.18 | 73.79 | ||||||||||
1996 | 55.48 | 62.14 | 64.50 | 73.28 | 82.06 | 90.14 | e | 96.18 | f | 93.74 | h | 83.70 | c | 76.10 | g | 63.79 | f | 55.83 | e | 70.89 | d | |||||
1997 | 55.46 | e | 57.38 | c | 68.73 | a | 70.31 | a | 84.74 | b | 86.06 | d | 92.53 | 93.65 | a | 89.12 | d | 74.79 | 62.82 | 52.39 | 74.00 | |||||
1998 | 55.58 | 53.66 | c | 61.33 | d | 65.47 | 75.27 | 83.67 | a | 94.90 | a | 94.86 | b | 87.68 | 72.87 | a | 61.64 | a | 54.94 | 71.82 | ||||||
1999 | 56.13 | 59.63 | a | 64.65 | a | 66.98 | 79.11 | 88.22 | 92.07 | b | 93.35 | a | 87.90 | 78.53 | 66.80 | 55.13 | 74.04 | |||||||||
2000 | 58.02 | 61.10 | 63.94 | 74.90 | a | 84.97 | a | 90.88 | a | 94.50 | 93.86 | b | 89.15 | 73.79 | c | 55.21 | a | 55.48 | 74.65 | |||||||
2001 | 53.79 | 56.35 | a | 64.52 | 70.04 | f | 84.69 | 90.38 | 93.31 | 92.35 | 88.80 | 76.23 | a | 65.52 | 51.50 | 74.31 | a | |||||||||
2002 | 53.98 | 59.38 | b | 62.21 | 73.78 | a | 79.30 | a | 90.36 | a | 94.43 | a | 92.15 | 87.00 | b | 72.28 | a | 64.41 | a | 52.50 | 73.48 | |||||
2003 | 59.87 | a | 57.24 | a | 62.33 | a | 67.93 | 79.88 | a | 87.84 | b | 95.25 | a | 93.34 | b | 88.05 | a | 79.55 | 59.48 | c | 54.13 | 73.74 | ||||
2004 | 53.44 | v | 55.48 | d | 71.16 | 72.33 | a | 81.63 | a | 88.37 | 93.26 | b | 91.63 | 86.36 | a | 72.60 | 59.14 | a | 54.10 | 75.10 | a | |||||
2005 | 55.94 | 58.25 | 62.23 | a | 70.21 | b | 81.23 | a | 87.83 | a | 95.00 | b | 91.58 | 87.07 | 75.45 | a | 64.24 | a | 54.60 | 73.64 | ||||||
2006 | 55.87 | a | 59.28 | e | 60.55 | c | 70.00 | b | 82.65 | a | 92.40 | a | 96.29 | b | 92.00 | c | 83.88 | a | 73.60 | b | 63.83 | 52.03 | b | 73.53 | ||
2007 | 52.16 | 58.59 | 66.55 | c | 71.66 | a | 81.73 | a | 89.27 | 94.07 | b | 94.24 | b | 86.98 | a | 75.55 | a | 67.29 | b | 50.74 | 74.07 | |||||
2008 | 52.74 | 55.98 | c | 64.74 | 71.80 | b | 77.38 | b | 90.63 | 93.80 | a | 92.45 | c | 88.00 | a | 76.32 | a | 64.04 | b | 53.58 | 73.46 | |||||
2009 | 57.03 | a | 58.70 | 65.78 | a | 70.64 | a | 84.71 | 86.38 | 96.55 | 92.76 | 88.40 | 72.28 | a | 64.95 | 51.95 | 74.18 | |||||||||
2010 | 55.58 | 57.88 | 61.69 | 69.15 | 76.73 | 88.33 | 95.33 | a | 92.42 | 88.83 | 75.47 | 60.13 | 57.45 | 73.25 | ||||||||||||
2011 | 53.28 | a | 53.75 | 65.63 | 72.77 | 76.48 | a | 87.78 | 93.63 | 96.32 | a | 88.50 | a | 76.36 | b | 61.27 | 51.21 | 73.08 | ||||||||
2012 | 56.63 | 58.36 | a | 63.81 | 73.20 | b | 82.40 | b | 90.70 | 92.85 | 94.35 | 87.57 | b | 75.21 | b | 65.00 | 53.81 | 74.49 | ||||||||
2013 | 52.55 | a | 55.61 | 67.27 | 72.98 | 81.67 | a | 91.57 | b | 94.45 | b | 92.27 | a | 86.55 | 71.07 | a | 63.57 | b | 53.64 | j | 75.41 | a | ||||
2014 | 57.60 | b | 61.04 | 67.56 | 72.95 | b | 80.66 | 89.93 | 95.05 | a | 90.27 | 86.70 | b | 76.45 | b | 63.13 | 55.45 | 74.73 | ||||||||
2015 | 56.44 | 62.68 | 70.25 | a | 71.98 | 77.81 | d | 91.02 | c | 93.05 | 95.48 | e | 87.98 | f | 77.15 | 59.77 | 51.17 | a | 73.34 | a | ||||||
2016 | 53.08 | a | 62.71 | c | 67.29 | j | 72.76 | a | 78.63 | a | 93.41 | a | 96.43 | h | 91.61 | i | 85.66 | e | 78.55 | b | 64.90 | j | 56.12 | c | 72.62 | d |
2017 | 53.69 | d | 60.34 | c | 69.70 | c | 73.65 | c | 80.59 | h | 92.73 | d | 95.77 | g | 93.35 | d | 85.84 | a | 77.91 | h | 68.13 | d | 57.13 | e | 72.73 | c |
2018 | 58.33 | b | 54.66 | 62.77 | 74.15 | 79.61 | 89.20 | 93.65 | 92.23 | 88.73 | 70.58 | 59.10 | 51.41 | h | 74.82 | a | ||||||||||
2019 | 51.80 | a | 49.96 | 62.37 | 72.25 | 73.50 | 88.25 | 94.76 | 94.55 | 86.33 | 71.69 | 61.82 | 51.24 | 71.54 | ||||||||||||
2020 | 52.19 | 54.62 | 60.69 | 71.05 | 83.00 | 88.75 | 95.69 | 96.71 | 88.17 | 76.33 | a | 62.83 | 51.34 | 73.45 | ||||||||||||
2021 | 53.00 | 57.79 | 60.52 | 74.45 | 79.82 | 92.72 | 92.19 | 91.26 | 86.85 | 71.32 | 65.90 | 54.92 | 73.39 | |||||||||||||
2022 | 53.63 | 55.48 | a | 63.76 | 73.40 | 80.35 | 91.48 | 94.56 | 91.47 | 87.72 | 73.56 | 55.13 | 50.52 | 72.59 | ||||||||||||
2023 | 49.56 | 52.43 | 57.81 | 71.05 | a | 79.35 | a | 84.43 | a | 99.29 | 95.05 | a | 86.52 | e | 76.07 | h | 64.15 | d | 54.19 | b | 72.17 | a | ||||
2024 | 49.68 | f | 57.08 | c | 62.19 | b | 70.93 | 79.25 | w | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 63.40 | i | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 53.83 | 57.35 | 62.80 | 70.06 | 78.69 | 87.68 | 92.77 | 91.43 | 85.37 | 73.52 | 61.30 | 53.14 | 72.13 | |||||||||||||
S.D. | 2.49 | 2.88 | 3.50 | 3.35 | 3.19 | 3.12 | 2.13 | 2.52 | 2.77 | 2.91 | 3.03 | 2.25 | 1.64 | |||||||||||||
SKEW | 0.13 | -0.09 | 0.25 | -0.54 | -0.01 | -0.50 | 0.33 | -0.01 | -0.63 | -0.18 | 0.13 | -0.02 | -0.29 | |||||||||||||
MAX | 59.87 | 62.98 | 71.16 | 76.37 | 84.97 | 93.41 | 99.29 | 96.71 | 89.63 | 79.55 | 68.13 | 58.35 | 74.73 | |||||||||||||
MIN | 48.56 | 49.96 | 54.84 | 61.53 | 72.15 | 77.67 | 88.60 | 85.19 | 78.83 | 66.63 | 55.13 | 48.28 | 68.98 | |||||||||||||
YRS | 58 | 60 | 59 | 59 | 58 | 59 | 55 | 57 | 58 | 57 | 58 | 58 | 49 |