YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1963 | ----- | z | ----- | z | ----- | z | 57.50 | 72.83 | a | 77.80 | 83.83 | a | 87.35 | 86.48 | c | 68.87 | a | 54.34 | a | 49.39 | 70.93 | c | ||||
1964 | 46.84 | 56.10 | 56.58 | 66.28 | a | 70.67 | d | 78.90 | a | 89.03 | 87.77 | 81.77 | 74.81 | 51.40 | 47.37 | a | 67.29 | |||||||||
1965 | 45.90 | 55.71 | ----- | z | 64.61 | b | 72.68 | 80.93 | a | 91.84 | 87.32 | f | ----- | z | ----- | z | ----- | z | 44.66 | b | 65.19 | e | ||||
1966 | 48.03 | 52.07 | 59.52 | 70.57 | 76.26 | 79.67 | 86.00 | 87.48 | 80.63 | 70.83 | b | 55.20 | 48.10 | 67.86 | ||||||||||||
1967 | 48.39 | 55.75 | 55.48 | 54.79 | a | 75.50 | a | 83.87 | 91.26 | 94.63 | a | 87.53 | 68.10 | 56.10 | a | 43.32 | 67.89 | |||||||||
1968 | 47.81 | 59.86 | 63.13 | 66.37 | 72.80 | a | 82.57 | 90.26 | 83.03 | 83.13 | 68.42 | 52.53 | 45.68 | 67.97 | ||||||||||||
1969 | 43.23 | 49.29 | 61.06 | 64.76 | a | 79.13 | 79.43 | 86.78 | d | 86.84 | 82.07 | 64.77 | 56.90 | 48.29 | 66.88 | |||||||||||
1970 | 50.55 | 58.04 | a | 60.00 | a | 58.07 | 75.06 | 83.57 | 91.45 | 89.45 | 80.47 | 70.39 | 54.73 | 45.58 | 68.11 | |||||||||||
1971 | 46.00 | 51.71 | 53.57 | a | 61.70 | 70.00 | 76.20 | 88.43 | c | 89.45 | 77.60 | 65.26 | 53.93 | 43.23 | 64.76 | |||||||||||
1972 | 47.19 | 55.07 | 64.35 | 63.97 | 76.68 | 84.37 | 93.65 | 91.00 | 80.17 | 69.29 | 54.17 | 44.13 | 68.67 | |||||||||||||
1973 | 47.55 | 57.93 | 55.94 | 68.20 | 79.93 | a | 84.83 | 94.19 | 90.58 | 83.53 | 67.94 | 51.00 | 51.45 | 69.42 | ||||||||||||
1974 | 46.52 | 51.96 | 57.74 | 64.63 | 73.35 | 85.63 | 88.42 | 91.16 | 91.77 | 74.58 | 56.67 | 46.53 | a | 69.08 | ||||||||||||
1975 | 46.90 | a | 51.93 | 53.81 | 59.17 | 75.94 | 81.30 | 88.52 | 84.32 | 88.97 | 64.13 | 52.63 | 47.23 | 66.24 | ||||||||||||
1976 | 50.84 | 54.24 | 57.52 | 62.83 | 76.97 | 79.13 | 89.52 | 80.45 | 82.00 | 73.48 | 58.03 | 45.13 | 67.51 | |||||||||||||
1977 | 47.52 | 60.68 | 56.58 | 72.93 | 67.61 | 86.17 | 91.58 | 94.90 | 79.83 | a | 68.13 | 54.27 | 50.71 | 69.24 | ||||||||||||
1978 | 52.26 | 54.71 | 64.13 | 62.00 | 72.19 | 82.37 | 88.35 | 86.32 | 72.87 | 74.90 | 52.57 | 43.26 | 67.16 | |||||||||||||
1979 | 46.13 | 50.93 | 63.00 | 62.60 | 75.32 | 82.93 | 88.52 | 84.19 | 85.27 | 70.13 | 51.80 | 49.65 | 67.54 | |||||||||||||
1980 | 48.58 | 56.41 | 56.58 | 66.57 | 71.29 | 74.20 | 90.06 | 87.71 | 85.53 | 74.19 | 56.67 | 50.48 | 68.19 | |||||||||||||
1981 | 52.19 | 56.32 | 61.29 | 68.43 | 72.68 | 82.07 | b | 90.35 | 94.23 | 85.43 | 67.42 | 54.57 | 49.58 | 69.55 | ||||||||||||
1982 | 44.74 | 53.71 | 56.90 | 63.80 | 75.55 | 82.43 | 87.68 | c | 90.06 | 78.37 | 69.52 | 54.30 | 47.81 | 67.07 | ||||||||||||
1983 | 50.61 | 53.43 | 57.35 | 62.13 | 75.97 | 78.47 | 82.87 | 86.34 | b | 78.20 | 71.03 | a | 52.37 | 46.03 | 66.23 | |||||||||||
1984 | 50.65 | 54.41 | 61.65 | 61.97 | 73.52 | 79.59 | a | 92.74 | 88.61 | 80.90 | 62.93 | a | 52.37 | 44.00 | 66.94 | |||||||||||
1985 | 50.52 | 54.86 | 56.97 | 72.10 | 73.23 | 85.33 | 94.39 | 89.65 | 76.50 | 68.90 | 48.07 | 48.35 | 68.24 | |||||||||||||
1986 | 54.81 | 55.68 | 65.90 | 67.03 | 74.42 | 85.57 | 86.06 | 93.94 | 73.53 | 71.81 | 56.90 | 49.16 | 69.57 | |||||||||||||
1987 | 50.55 | 55.43 | 60.16 | 73.63 | 77.84 | 88.93 | 84.61 | 92.94 | 83.07 | 78.68 | 56.97 | 47.35 | 70.85 | |||||||||||||
1988 | 48.42 | 61.31 | 62.23 | 67.40 | 71.68 | 79.87 | 92.72 | b | 92.39 | 87.80 | 81.43 | a | 56.03 | a | 48.13 | 70.78 | ||||||||||
1989 | 48.81 | 51.22 | a | 58.03 | a | 72.63 | 74.10 | 85.07 | 85.55 | 85.52 | 83.40 | 71.25 | c | 57.97 | a | 49.81 | 68.61 | |||||||||
1990 | 50.65 | 53.25 | 63.90 | 73.00 | 71.81 | 81.00 | 92.23 | 87.33 | a | 85.97 | 71.29 | 54.23 | 42.81 | 68.96 | ||||||||||||
1991 | 51.55 | 61.39 | 55.77 | 63.30 | 69.35 | ----- | z | 92.96 | f | 90.61 | 89.70 | ----- | z | 60.03 | 45.58 | 65.26 | c | |||||||||
1992 | 51.97 | 62.86 | 66.55 | 73.07 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 56.77 | 44.87 | 59.35 | f | |||||
1993 | 46.97 | 52.21 | 62.90 | 64.20 | 75.77 | a | 80.77 | 84.07 | b | 89.35 | 89.37 | 75.90 | a | 55.92 | d | 50.13 | 68.96 | |||||||||
1994 | 52.40 | a | 53.89 | a | 66.48 | 67.90 | i | 78.10 | a | 84.50 | 96.55 | 90.73 | a | 88.83 | 72.03 | a | 47.93 | 49.55 | b | 71.00 | a | |||||
1995 | 52.45 | 63.21 | 58.84 | 65.73 | 75.38 | b | 78.00 | a | 89.77 | 90.00 | 87.37 | 74.42 | 61.33 | 52.30 | a | 70.73 | ||||||||||
1996 | 48.74 | 58.83 | 65.10 | 69.10 | a | 72.90 | 82.90 | 96.10 | b | 94.07 | d | 82.07 | a | 71.10 | b | 57.48 | a | ----- | z | 72.58 | a | |||||
1997 | 49.81 | 55.79 | 64.68 | c | 66.70 | 80.29 | 80.79 | a | 89.50 | a | 90.26 | 82.40 | 67.55 | 57.79 | a | 48.16 | 69.48 | |||||||||
1998 | 52.86 | b | 55.75 | x | 61.07 | p | 61.97 | a | 71.89 | v | 81.40 | y | ----- | z | 95.37 | l | 85.89 | u | 69.12 | w | ----- | z | ----- | z | 57.41 | j |
1999 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2000 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 50.50 | 49.42 | 49.96 | j | ||
2001 | 51.63 | a | 52.74 | a | 61.97 | 62.77 | 83.10 | a | 81.55 | a | 90.37 | a | 92.00 | a | 87.34 | a | 74.87 | a | 57.73 | 48.94 | 70.42 | |||||
2002 | 49.67 | a | 56.57 | 59.55 | 69.50 | 74.03 | 86.00 | 94.55 | 90.55 | b | 86.80 | 73.45 | b | 59.93 | a | 49.47 | a | 70.84 | ||||||||
2003 | 54.03 | 56.00 | 59.76 | b | 59.17 | 72.94 | 88.52 | a | 95.61 | 90.74 | 89.04 | b | 76.90 | b | 52.70 | c | 48.80 | a | 70.35 | |||||||
2004 | 50.67 | a | 54.97 | 68.14 | b | 70.10 | a | 73.57 | a | 83.90 | a | 95.31 | e | 92.35 | 82.33 | c | 70.77 | a | 55.10 | 50.53 | a | 70.64 | ||||
2005 | 47.64 | c | 59.07 | 65.03 | 64.10 | 72.45 | 76.10 | a | 93.65 | 95.00 | a | 82.62 | d | 71.68 | 55.38 | a | 48.52 | b | 69.27 | |||||||
2006 | 50.63 | d | 56.96 | 53.42 | 64.56 | c | 77.83 | a | 84.03 | a | 94.03 | 88.48 | b | 86.00 | a | 70.87 | 56.41 | a | 49.61 | 69.40 | ||||||
2007 | 48.00 | b | 54.32 | c | 64.72 | b | ----- | z | 76.59 | b | 83.39 | b | 90.66 | b | 89.13 | 81.52 | e | 65.30 | d | 57.83 | f | 46.69 | b | 70.03 | b | |
2008 | 45.56 | d | 55.07 | a | 57.23 | a | 63.13 | 74.20 | a | 82.21 | b | 91.54 | c | 90.83 | h | 88.24 | e | 71.00 | d | 55.63 | c | 47.00 | c | 66.44 | a | |
2009 | 50.72 | f | 56.05 | g | 57.27 | e | 67.40 | e | 75.71 | c | 81.44 | c | 94.97 | b | 91.56 | d | 87.20 | e | 66.44 | f | 53.07 | c | 45.73 | e | 72.71 | c |
2010 | 52.43 | c | 56.45 | h | 60.93 | d | 59.73 | d | 68.29 | c | 76.72 | e | 91.57 | j | 88.65 | h | 80.90 | j | 72.36 | i | 52.38 | d | 49.00 | h | 61.75 | f |
2011 | 50.58 | g | 52.43 | g | 54.20 | f | 60.12 | d | 67.15 | e | 78.81 | d | 84.77 | 90.19 | d | 87.80 | 70.85 | e | 54.64 | e | 48.61 | c | 71.44 | c | ||
2012 | 51.25 | c | 55.57 | f | 55.37 | d | 64.64 | h | 75.88 | e | 77.85 | d | 89.69 | b | 93.43 | a | 88.93 | 73.16 | 55.75 | b | 50.69 | e | 71.20 | b | ||
2013 | 47.73 | a | 54.04 | 64.04 | f | 68.42 | f | 76.25 | c | 83.63 | 95.24 | b | 90.26 | 83.79 | f | 71.64 | c | 57.92 | d | 45.96 | d | 69.19 | c | |||
2014 | 55.88 | f | 59.04 | b | 65.65 | e | 69.62 | f | 78.84 | f | 83.04 | e | 97.81 | 94.43 | a | 87.79 | f | 79.59 | d | 63.14 | b | 56.81 | e | 74.94 | d | |
2015 | 58.00 | c | 62.72 | c | 70.76 | f | 71.03 | a | 79.50 | e | 92.38 | d | 95.63 | a | 93.62 | b | 82.67 | i | 77.44 | d | 56.38 | d | 48.22 | d | 73.49 | b |
2016 | 51.73 | e | 57.43 | f | 58.62 | g | 71.83 | g | 76.45 | i | 85.20 | e | 89.00 | h | 93.65 | h | 81.56 | c | 65.54 | e | 60.43 | b | 45.83 | g | 68.89 | g |
2017 | 47.23 | e | 53.05 | g | 58.71 | g | 61.96 | d | 79.20 | k | 84.75 | f | 92.60 | a | 93.46 | c | 80.50 | b | 70.86 | b | 56.66 | a | 49.12 | f | 71.90 | e |
2018 | 54.25 | c | 55.19 | b | 58.09 | h | 66.11 | c | 77.07 | b | 81.50 | h | 95.89 | d | 92.03 | a | 83.52 | c | 73.26 | d | 60.79 | f | 50.25 | c | 71.95 | c |
2019 | 52.08 | e | 45.35 | k | 58.64 | f | 66.71 | f | 73.04 | f | 86.65 | m | 89.00 | p | 91.33 | s | 81.33 | o | 71.36 | t | 63.62 | v | 52.36 | t | 52.08 | k |
2020 | 52.15 | k | 57.95 | g | 59.50 | e | 69.48 | e | 74.59 | b | 81.95 | j | 93.27 | e | 93.28 | f | 83.67 | i | 77.12 | g | 56.95 | j | 51.38 | e | 69.64 | g |
2021 | 53.54 | c | 51.04 | a | 60.39 | h | 73.39 | l | 80.17 | h | 91.22 | g | 97.19 | 91.62 | b | 85.45 | a | 68.10 | a | 58.75 | b | 46.93 | b | 69.08 | d | |
2022 | 56.03 | a | 58.00 | d | 65.81 | d | 63.31 | d | 72.09 | h | 83.65 | g | 94.82 | c | 96.48 | j | 91.42 | k | 81.25 | s | 56.14 | p | 48.04 | d | 64.34 | f |
2023 | 53.71 | n | 53.88 | k | 52.62 | g | 67.26 | k | 78.33 | s | 87.29 | w | 96.90 | u | 93.67 | y | 83.67 | o | 74.08 | s | 63.07 | p | 57.00 | m | ----- | z |
2024 | 52.93 | p | 60.50 | o | 58.93 | q | 68.30 | t | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 49.83 | 55.75 | 60.38 | 65.32 | 74.52 | 82.12 | 91.05 | 90.03 | 83.78 | 71.20 | 55.32 | 47.91 | 68.59 | |||||||||||||
S.D. | 3.00 | 3.35 | 3.97 | 4.48 | 3.25 | 3.55 | 3.83 | 3.27 | 4.26 | 4.01 | 3.07 | 2.67 | 1.51 | |||||||||||||
SKEW | 0.28 | 0.49 | 0.08 | 0.05 | 0.00 | 0.24 | -0.29 | -0.66 | -0.47 | 0.27 | -0.04 | 0.32 | -0.32 | |||||||||||||
MAX | 58.00 | 63.21 | 68.14 | 73.63 | 83.10 | 92.38 | 97.81 | 95.00 | 91.77 | 81.43 | 63.14 | 56.81 | 70.85 | |||||||||||||
MIN | 43.23 | 49.29 | 53.42 | 54.79 | 67.15 | 74.20 | 82.87 | 80.45 | 72.87 | 62.93 | 47.93 | 42.81 | 64.76 | |||||||||||||
YRS | 53 | 48 | 47 | 50 | 50 | 49 | 52 | 49 | 48 | 49 | 52 | 53 | 35 |