YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1969 | ----- | z | 53.62 | 58.63 | 67.73 | 76.58 | 80.52 | 90.94 | 93.42 | 86.42 | 68.08 | 60.72 | 52.25 | a | 71.72 | a | ||||||||||
1970 | 49.94 | 57.29 | 59.02 | 61.95 | 74.82 | 82.35 | 91.76 | 91.55 | 81.55 | 67.97 | 59.17 | 50.05 | 68.95 | |||||||||||||
1971 | 49.39 | 54.31 | a | 60.94 | 64.45 | 69.71 | 80.67 | 90.21 | 89.74 | 83.35 | 66.97 | 56.87 | 48.76 | 67.95 | ||||||||||||
1972 | 48.34 | 56.68 | a | 67.35 | 67.75 | 74.77 | 83.88 | 91.74 | 87.66 | 81.03 | 70.32 | ----- | z | 49.48 | a | 70.82 | a | |||||||||
1973 | 48.31 | 54.89 | a | 56.21 | b | 64.63 | 75.74 | 84.02 | 89.48 | 87.95 | 80.07 | 70.23 | 58.17 | a | 52.24 | 68.49 | ||||||||||
1974 | 51.32 | 53.61 | a | 62.05 | 66.27 | 74.53 | 84.97 | 87.95 | 87.89 | 85.17 | 73.44 | 58.48 | a | 48.47 | a | 69.51 | ||||||||||
1975 | 50.19 | b | 52.25 | 57.79 | 60.75 | 72.44 | 80.48 | 89.56 | 87.87 | 82.55 | 67.11 | 55.77 | 48.31 | 67.09 | ||||||||||||
1976 | 49.21 | 57.52 | 58.53 | 65.13 | 76.24 | 82.97 | 87.90 | 85.44 | 79.95 | 70.24 | 59.83 | 50.21 | 68.60 | |||||||||||||
1977 | 50.47 | a | 56.11 | 56.87 | 68.64 | a | 69.90 | a | 82.98 | 89.44 | 87.71 | 81.62 | 73.68 | 60.31 | a | 54.95 | a | 69.39 | ||||||||
1978 | 51.92 | 55.57 | 63.68 | 65.88 | 74.33 | a | 84.33 | 88.95 | 86.97 | 81.90 | 74.71 | 58.23 | 47.42 | 69.49 | ||||||||||||
1979 | 46.66 | 52.78 | a | 57.91 | d | 68.15 | j | 73.78 | b | 82.20 | 87.63 | 84.40 | a | 86.50 | b | 72.30 | c | 56.22 | 52.12 | a | 68.41 | a | ||||
1980 | 53.60 | 58.03 | 59.05 | b | 67.70 | b | 72.84 | 86.71 | a | 95.45 | 92.10 | 84.50 | a | 74.68 | 59.69 | c | 56.38 | a | 71.73 | |||||||
1981 | 56.68 | 57.59 | a | 60.47 | 69.34 | a | 75.58 | g | 89.48 | d | 92.77 | 92.33 | a | 83.98 | b | 68.55 | a | 61.80 | 54.89 | 71.63 | a | |||||
1982 | 51.48 | b | 58.61 | a | 60.17 | a | 68.53 | 75.17 | b | 80.55 | 88.33 | a | 89.02 | 81.80 | 68.00 | 58.27 | 51.15 | a | 69.26 | |||||||
1983 | 53.58 | a | 56.79 | b | 62.47 | b | 64.02 | a | 76.26 | b | 82.78 | c | 90.68 | 87.55 | 87.65 | 74.03 | 61.27 | 55.50 | 71.05 | |||||||
1984 | 54.00 | a | 55.22 | 62.35 | a | 65.78 | 79.92 | 82.92 | 88.68 | a | 88.26 | 85.58 | 67.55 | 56.89 | b | 51.32 | 69.87 | |||||||||
1985 | 51.35 | a | 52.27 | 57.84 | c | 69.65 | 75.48 | 84.23 | 90.15 | 89.47 | 77.28 | a | 71.29 | 57.50 | a | 50.84 | b | 68.95 | ||||||||
1986 | 56.05 | a | 57.52 | 64.98 | 67.50 | a | 75.05 | 84.80 | 87.26 | 91.63 | a | 77.93 | 68.31 | 59.40 | 51.29 | 70.14 | ||||||||||
1987 | 49.29 | c | 55.39 | 58.47 | 71.47 | 75.19 | 84.02 | 86.35 | 88.82 | 82.75 | 76.02 | 58.87 | 48.77 | c | 69.62 | |||||||||||
1988 | 50.79 | b | 58.72 | 62.39 | 69.16 | b | 77.52 | b | 85.03 | 92.27 | a | 90.43 | a | 83.34 | a | 78.29 | 60.47 | 51.37 | 71.65 | |||||||
1989 | 50.19 | d | 57.50 | b | 66.31 | 74.13 | 75.63 | 83.50 | 91.05 | a | 88.07 | a | 84.18 | 72.52 | 59.95 | a | 50.59 | d | 71.13 | |||||||
1990 | 49.84 | b | 53.82 | 63.74 | 69.77 | 73.19 | 85.05 | a | 90.18 | 87.47 | a | 84.34 | a | 72.35 | 59.62 | 48.08 | 69.79 | |||||||||
1991 | 51.93 | d | 60.30 | 57.47 | a | 66.36 | a | 72.23 | c | 79.25 | 86.45 | 87.74 | 83.77 | b | 75.95 | a | 59.81 | c | 53.50 | 69.56 | ||||||
1992 | 52.70 | a | 59.64 | a | 61.81 | b | 71.73 | 78.05 | 82.07 | a | 87.90 | 91.90 | a | 86.47 | 74.79 | 56.48 | a | 49.34 | b | 71.07 | ||||||
1993 | 54.95 | a | 56.10 | b | 63.45 | a | 70.59 | b | 78.94 | 85.74 | a | 89.39 | 90.58 | a | 85.35 | 75.34 | b | 57.88 | a | 51.30 | a | 71.63 | ||||
1994 | 53.03 | 54.14 | 64.47 | 70.34 | a | 77.35 | e | 90.42 | 93.21 | 95.03 | a | 87.91 | a | 72.02 | b | 55.43 | a | 51.90 | 72.10 | |||||||
1995 | 54.28 | b | 63.08 | b | 63.48 | 68.25 | b | 74.68 | a | 84.46 | b | 93.44 | 96.08 | 90.03 | 73.52 | 65.03 | a | 54.73 | a | 73.42 | ||||||
1996 | 53.68 | a | 61.21 | a | 64.48 | a | 72.43 | b | 81.24 | b | 87.77 | 95.11 | 93.74 | 84.86 | a | 73.57 | b | 61.48 | a | 53.94 | 73.63 | |||||
1997 | 55.27 | a | 56.39 | a | 66.44 | 69.95 | a | 83.85 | a | 83.55 | 90.67 | a | 93.98 | 89.46 | c | 71.79 | 61.05 | a | 50.14 | b | 72.71 | |||||
1998 | 53.97 | a | 55.80 | a | 61.39 | 65.87 | 73.15 | 81.72 | 94.47 | 95.08 | a | 86.55 | 71.32 | a | 59.63 | 51.77 | 70.89 | |||||||||
1999 | 54.90 | 58.26 | a | 62.37 | 65.55 | b | 76.89 | 85.98 | 92.25 | a | 92.43 | b | 87.92 | 75.74 | 63.67 | a | 53.31 | b | 72.44 | |||||||
2000 | 55.46 | f | 58.98 | c | 62.97 | a | 73.38 | a | 82.44 | 89.37 | 93.71 | 94.19 | 87.37 | c | 72.52 | a | 54.39 | b | 53.72 | a | 74.82 | a | ||||
2001 | 51.65 | d | 54.70 | a | 64.33 | a | 67.98 | 83.48 | 89.00 | 91.29 | 91.45 | 88.95 | 76.39 | 65.48 | b | 49.45 | c | 72.85 | ||||||||
2002 | 52.26 | d | 56.46 | a | 60.56 | 71.69 | a | 77.35 | 88.47 | 94.40 | 92.18 | 87.37 | 71.67 | a | 63.02 | b | 51.05 | b | 72.21 | |||||||
2003 | 59.18 | a | 58.54 | b | 63.98 | a | 66.58 | 78.84 | 86.23 | 94.95 | 93.66 | 89.14 | a | 79.97 | 58.59 | b | 52.36 | b | 73.50 | |||||||
2004 | 54.11 | 55.00 | b | 70.72 | b | 70.47 | 79.65 | 86.23 | 93.29 | 92.58 | 85.79 | a | 72.36 | b | 58.09 | a | 52.27 | a | 72.55 | |||||||
2005 | 54.89 | c | 57.61 | 61.45 | a | 67.45 | 78.63 | 84.97 | 94.15 | a | 92.53 | 85.16 | a | 74.08 | 62.16 | a | 51.52 | a | 72.05 | |||||||
2006 | 52.23 | 56.91 | a | 59.83 | d | 68.62 | a | 80.37 | a | 91.13 | 96.00 | b | 93.07 | a | 84.30 | 72.70 | a | 62.97 | 50.33 | b | 72.37 | |||||
2007 | 49.14 | c | 57.46 | 65.79 | 70.83 | 79.16 | 87.23 | 93.76 | 95.44 | 86.70 | 73.56 | 64.46 | b | 49.83 | e | 72.78 | ||||||||||
2008 | 51.14 | c | 56.46 | a | 63.40 | a | 69.67 | 75.68 | 89.45 | 94.13 | 92.98 | a | 89.28 | 74.48 | 64.00 | a | 52.77 | 72.79 | ||||||||
2009 | 55.16 | 56.55 | 63.16 | 68.18 | 83.39 | 84.72 | 96.65 | 93.27 | 88.82 | 71.52 | 62.25 | 50.82 | 72.87 | |||||||||||||
2010 | 54.50 | a | 58.34 | 61.21 | 67.85 | 74.44 | 86.32 | 95.24 | 93.31 | 88.33 | 74.50 | 59.90 | 56.23 | 72.51 | ||||||||||||
2011 | 52.61 | 52.36 | 64.52 | 71.83 | 74.52 | 85.91 | b | 93.53 | 96.39 | 88.60 | 75.92 | 60.08 | 49.63 | 72.16 | ||||||||||||
2012 | 54.76 | 57.40 | 62.52 | a | 72.12 | 80.74 | 89.72 | c | 92.85 | 94.75 | a | 88.16 | a | 75.69 | 63.48 | 54.52 | 73.89 | |||||||||
2013 | 50.12 | a | 54.48 | 67.69 | 72.55 | a | 80.24 | 90.07 | b | 95.57 | c | 92.23 | 85.90 | 69.85 | 61.97 | 52.59 | b | 72.77 | ||||||||
2014 | 55.98 | 61.29 | 66.61 | 72.66 | a | 79.53 | 88.71 | a | 95.16 | 90.62 | b | 89.10 | 77.74 | b | 62.72 | 55.81 | 74.66 | |||||||||
2015 | 55.28 | a | 62.85 | b | 69.69 | b | 71.30 | 75.53 | 90.12 | a | 91.60 | a | 96.11 | 89.98 | c | 78.43 | b | 59.16 | a | 50.75 | a | 74.23 | ||||
2016 | 52.67 | b | 62.24 | 67.12 | b | 72.37 | 76.52 | d | 92.33 | c | 95.91 | c | 94.53 | 85.35 | 77.95 | 64.35 | 56.24 | d | 74.80 | |||||||
2017 | 54.10 | 61.37 | b | 68.38 | a | 73.56 | d | 78.94 | 89.90 | 96.26 | 94.50 | 84.18 | 75.74 | 67.25 | 54.94 | 74.93 | ||||||||||
2018 | 57.87 | 56.95 | 64.58 | 74.43 | 78.77 | 88.12 | 95.90 | a | 95.45 | 90.38 | a | 73.10 | 60.40 | 52.81 | 74.06 | |||||||||||
2019 | 52.94 | 52.77 | 63.61 | 73.88 | 74.00 | 86.62 | 94.15 | 95.85 | 86.88 | 71.74 | 62.85 | 53.08 | 72.36 | |||||||||||||
2020 | 54.02 | 56.29 | 62.13 | 71.60 | 82.56 | 87.67 | 95.27 | 97.82 | 89.18 | 76.87 | 62.78 | 53.02 | 74.10 | |||||||||||||
2021 | 53.92 | 59.29 | 61.84 | 74.68 | 78.62 | n | 91.85 | 96.24 | 93.03 | 88.82 | 71.61 | 65.76 | a | 55.97 | 73.91 | a | ||||||||||
2022 | 55.02 | 55.98 | 65.74 | 72.40 | 79.74 | 91.15 | 95.34 | 94.21 | 90.18 | 76.63 | 56.43 | 53.40 | 73.85 | |||||||||||||
2023 | 54.19 | 55.20 | 61.97 | ----- | z | 79.24 | 83.47 | 98.68 | 94.68 | 86.78 | 76.18 | a | 62.75 | f | 54.79 | 74.52 | b | |||||||||
2024 | 53.58 | 59.03 | 62.42 | a | 64.32 | p | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 58.34 | i | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 52.75 | 56.88 | 62.66 | 69.20 | 76.97 | 85.78 | 92.28 | 91.77 | 85.65 | 73.13 | 60.39 | 52.04 | 71.63 | |||||||||||||
S.D. | 2.56 | 2.65 | 3.27 | 3.24 | 3.33 | 3.30 | 3.04 | 3.15 | 3.18 | 3.16 | 2.90 | 2.35 | 2.00 | |||||||||||||
SKEW | -0.06 | 0.35 | 0.18 | -0.37 | 0.13 | 0.12 | -0.19 | -0.34 | -0.60 | -0.14 | 0.18 | 0.13 | -0.33 | |||||||||||||
MAX | 59.18 | 63.08 | 70.72 | 74.68 | 83.85 | 92.33 | 98.68 | 97.82 | 90.38 | 79.97 | 67.25 | 56.38 | 74.93 | |||||||||||||
MIN | 46.66 | 52.25 | 56.21 | 60.75 | 69.71 | 79.25 | 86.35 | 84.40 | 77.28 | 66.97 | 54.39 | 47.42 | 67.09 | |||||||||||||
YRS | 54 | 56 | 56 | 53 | 53 | 55 | 55 | 55 | 55 | 55 | 53 | 55 | 48 |