YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1948 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1949 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1950 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1951 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1952 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1953 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1954 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1955 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1956 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1957 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1958 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1959 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1960 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1961 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1962 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1963 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1964 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 64.61 | 64.61 | k | |
1965 | 66.84 | 64.96 | 69.97 | 79.83 | 84.58 | 91.10 | 94.16 | 93.87 | 87.97 | a | 84.39 | 75.87 | 61.60 | a | 79.59 | |||||||||||
1966 | 59.23 | 61.04 | 75.26 | 81.33 | 88.94 | 94.50 | 96.10 | 90.35 | 86.97 | 82.58 | 75.57 | 64.48 | 79.69 | |||||||||||||
1967 | 67.06 | 70.50 | 78.81 | 78.87 | 85.16 | 91.80 | 91.71 | 90.19 | 86.83 | 82.97 | a | 72.43 | 56.71 | 79.42 | ||||||||||||
1968 | 60.74 | 67.71 | a | 66.84 | 74.17 | 85.58 | 94.60 | 91.10 | 87.42 | 88.57 | 84.06 | 68.13 | 62.19 | 77.59 | ||||||||||||
1969 | 65.65 | 64.39 | 68.71 | 81.07 | 86.60 | a | 94.40 | 94.52 | 94.10 | a | 89.47 | 81.37 | a | 68.13 | 63.69 | b | 79.34 | |||||||||
1970 | 62.23 | 68.89 | 69.17 | a | 75.87 | 88.42 | 95.14 | a | 95.72 | b | 92.88 | g | 87.23 | 79.29 | 73.97 | 66.77 | a | 78.43 | a | |||||||
1971 | 65.35 | 67.00 | a | 77.00 | a | 78.93 | 85.57 | a | 94.60 | 96.16 | 88.61 | 88.63 | 75.13 | 70.20 | 60.30 | a | 78.96 | |||||||||
1972 | 65.29 | 70.32 | a | 79.19 | 82.73 | 85.70 | a | 93.28 | a | 96.19 | 90.57 | c | 87.73 | 78.23 | 66.43 | 63.23 | 79.91 | |||||||||
1973 | 58.30 | d | 62.96 | 64.90 | a | 74.24 | a | 85.60 | a | 94.37 | 92.86 | b | 94.94 | 92.13 | 84.55 | 73.60 | 66.32 | 78.73 | ||||||||
1974 | 62.66 | b | 67.26 | a | 74.90 | a | 80.71 | b | 89.39 | 99.64 | e | 90.74 | 90.74 | 85.57 | 78.13 | a | 68.57 | 59.42 | 78.98 | |||||||
1975 | 61.67 | a | 65.21 | 70.39 | 74.40 | 84.63 | a | 96.52 | c | 94.10 | 95.97 | 88.03 | 83.48 | 73.80 | 63.94 | 79.34 | ||||||||||
1976 | 63.87 | 70.79 | 73.32 | 77.83 | 86.63 | a | 96.30 | 90.90 | a | 93.84 | 86.63 | 75.29 | 67.43 | 60.19 | 78.59 | |||||||||||
1977 | 58.48 | 69.07 | 68.52 | 79.00 | 84.81 | 94.47 | 93.13 | 93.58 | 89.43 | 78.42 | 71.50 | 67.57 | a | 79.00 | ||||||||||||
1978 | 61.26 | 61.50 | 71.97 | 78.77 | 85.68 | 96.90 | 96.80 | a | 90.80 | a | 86.79 | a | 81.19 | 66.59 | a | 56.13 | 77.86 | |||||||||
1979 | 54.48 | 66.25 | 69.77 | 80.60 | 83.61 | 93.67 | 95.61 | 90.97 | 92.45 | a | 86.61 | 67.53 | 64.16 | 78.81 | ||||||||||||
1980 | 63.23 | 67.34 | 68.35 | 78.37 | 83.48 | 99.40 | 98.26 | 91.73 | a | 90.24 | a | 78.84 | 69.03 | a | 68.35 | 79.72 | ||||||||||
1981 | 62.81 | 70.15 | a | 68.94 | 80.33 | 85.39 | 97.53 | 92.39 | 93.19 | 90.10 | 79.59 | b | 73.93 | 68.71 | 80.25 | |||||||||||
1982 | 63.13 | 68.12 | c | 73.05 | i | 82.65 | j | 85.93 | a | 95.75 | b | 93.43 | a | 92.74 | 89.83 | 81.84 | 67.13 | 58.74 | 79.67 | b | ||||||
1983 | 60.67 | a | 63.73 | b | 66.77 | 70.68 | b | 84.26 | 91.32 | b | 93.61 | 90.77 | 89.43 | 75.90 | 66.07 | 63.50 | a | 76.39 | ||||||||
1984 | 61.33 | a | 66.89 | a | 74.19 | 77.54 | d | 91.94 | 93.37 | 92.47 | a | 87.77 | 87.90 | 73.63 | a | 68.63 | 60.54 | c | 78.02 | |||||||
1985 | 58.52 | 63.63 | a | 72.10 | a | 79.41 | a | 86.26 | 97.97 | 95.70 | a | 92.74 | 86.55 | a | 78.41 | d | 67.59 | a | 65.00 | a | 78.66 | |||||
1986 | 69.06 | 71.85 | a | 76.13 | 82.28 | a | 88.06 | 93.03 | 89.81 | 91.23 | 87.60 | 78.55 | 67.82 | b | 60.00 | b | 79.62 | |||||||||
1987 | 62.86 | b | 62.79 | 68.81 | 79.25 | b | 82.60 | a | 94.80 | 95.13 | a | 89.52 | 86.45 | a | 84.35 | 69.52 | c | 62.03 | a | 78.18 | ||||||
1988 | 62.81 | 69.75 | a | 74.97 | 78.72 | a | 87.55 | b | 95.44 | c | 93.10 | 89.20 | a | 88.25 | b | 82.52 | 72.28 | a | 62.39 | 79.75 | ||||||
1989 | 60.90 | 70.75 | 78.50 | a | 86.76 | a | 90.97 | 97.53 | 96.74 | 90.42 | 91.20 | 81.19 | 72.97 | a | 64.50 | a | 81.87 | |||||||||
1990 | 64.03 | a | 66.41 | a | 73.69 | b | 81.93 | a | 87.23 | a | 100.47 | 91.03 | b | 88.87 | 89.34 | a | 82.00 | a | 71.62 | a | 60.93 | c | 79.80 | |||
1991 | 61.13 | 68.41 | a | 69.68 | 79.97 | a | 87.77 | a | 93.87 | 94.87 | 91.39 | 87.07 | 84.73 | a | 70.59 | a | 59.93 | a | 79.12 | |||||||
1992 | 56.90 | b | 65.03 | 69.71 | 81.76 | a | 84.77 | a | 95.63 | 94.35 | 91.58 | 92.33 | 84.77 | 67.80 | 61.90 | 78.88 | ||||||||||
1993 | 62.16 | 63.92 | b | 73.70 | a | 81.96 | b | 88.48 | 97.18 | b | 92.68 | 91.39 | 90.03 | a | 81.73 | a | 69.76 | a | 66.36 | c | 79.95 | |||||
1994 | 66.33 | a | 67.39 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 66.86 | j | |
1995 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1996 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1997 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1998 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | ----- | z | ----- | z | ----- | z |
2001 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 92.74 | k | 85.80 | a | 73.93 | c | 65.77 | a | 75.16 | i |
2002 | 66.17 | a | 67.35 | b | 76.13 | a | 85.37 | c | 89.77 | 99.82 | b | 95.53 | a | 93.70 | d | 91.21 | a | 81.48 | 74.70 | 63.32 | 82.05 | |||||
2003 | 73.24 | b | 67.25 | 72.43 | c | 80.37 | 90.86 | c | 96.48 | a | 100.00 | a | 94.46 | c | 92.38 | a | 87.28 | b | 73.03 | 67.26 | 82.92 | |||||
2004 | 64.20 | a | 65.17 | f | 78.11 | c | 77.85 | j | 88.90 | a | 95.83 | a | 94.83 | b | 92.37 | a | 87.50 | d | 80.53 | a | 66.07 | c | 62.79 | b | 81.11 | b |
2005 | 64.17 | b | 62.48 | c | 70.78 | d | 79.81 | i | 88.75 | c | 95.73 | d | 98.75 | c | 90.12 | g | 91.92 | d | 81.81 | d | 76.53 | 69.29 | c | 80.02 | b | |
2006 | 69.20 | f | 72.00 | c | 72.89 | c | 82.58 | d | 91.79 | c | 98.00 | c | 93.93 | c | 90.07 | d | 84.74 | k | 79.92 | e | 76.88 | m | 64.68 | f | 85.15 | d |
2007 | 57.52 | h | 68.54 | 74.33 | d | 79.96 | d | 87.96 | e | 96.39 | b | 93.71 | 91.78 | d | 89.58 | d | 87.88 | g | 79.25 | f | 63.06 | 82.81 | c | |||
2008 | 62.40 | a | 70.77 | c | 74.78 | d | 81.80 | 86.80 | a | 98.04 | b | 91.76 | b | 90.52 | b | 87.78 | c | 84.00 | d | 75.00 | d | 66.00 | c | 80.80 | ||
2009 | 67.30 | d | 72.44 | a | 75.26 | d | 79.68 | b | 90.28 | b | 92.43 | i | 97.25 | c | 94.96 | g | 89.60 | j | 78.58 | e | 79.40 | y | ----- | z | 80.11 | e |
2010 | 63.00 | g | 64.21 | i | 73.25 | o | 79.71 | i | 90.14 | q | 98.58 | k | 95.67 | g | 93.44 | f | 93.83 | g | 85.00 | m | 70.88 | n | 69.88 | n | ----- | z |
2011 | 67.05 | l | 65.25 | l | 79.00 | k | 83.80 | j | 87.91 | i | 99.90 | j | 95.79 | g | 96.68 | f | 92.91 | h | 86.00 | j | 70.35 | j | 61.12 | o | ----- | z |
2012 | 70.56 | m | 69.83 | e | 75.37 | d | 86.29 | f | 90.44 | f | 99.55 | h | 94.20 | f | 95.13 | a | 89.44 | l | 86.19 | d | 76.83 | g | 64.50 | c | 78.20 | g |
2013 | 61.21 | g | 65.24 | g | 77.70 | k | 82.23 | d | 87.33 | j | 100.54 | b | 93.30 | d | 93.96 | g | 90.68 | b | 82.55 | i | 71.71 | i | 65.19 | j | 91.69 | h |
2014 | 70.35 | h | 74.91 | f | 76.55 | i | 82.38 | i | 88.68 | i | 100.54 | f | 97.09 | i | 91.32 | f | 89.43 | i | 85.48 | j | 73.43 | b | 67.20 | a | 70.31 | j |
2015 | 66.28 | b | 75.96 | a | 75.00 | 80.29 | b | 85.58 | e | 99.37 | c | 93.67 | d | 97.63 | a | 91.80 | e | 83.74 | d | 72.89 | b | 66.15 | e | 82.36 | ||
2016 | 64.39 | h | 77.71 | e | 79.48 | h | 82.96 | d | 87.23 | e | 99.88 | d | 99.04 | g | 87.96 | e | 86.70 | g | 84.38 | o | 72.81 | i | 66.45 | k | 87.15 | g |
2017 | 62.09 | h | 68.06 | l | 78.16 | l | 80.27 | o | 89.00 | v | 101.00 | q | 92.23 | 89.94 | 87.80 | 85.90 | a | 78.50 | j | 66.70 | h | 88.97 | h | |||
2018 | 68.24 | j | 66.27 | b | 72.41 | d | 81.64 | e | 89.37 | l | 99.16 | k | 95.35 | h | 91.43 | j | 90.62 | i | 74.92 | g | 69.28 | l | 62.56 | m | 73.44 | i |
2019 | 62.50 | k | 62.58 | i | 71.61 | h | 78.67 | i | 81.47 | n | 92.79 | p | 95.72 | f | 93.92 | f | 89.12 | f | 81.12 | e | 71.52 | e | 63.04 | f | 76.32 | j |
2020 | 66.64 | f | 65.35 | c | 69.91 | h | 78.33 | f | 89.36 | c | 96.77 | h | 98.04 | h | 100.47 | n | ----- | z | ----- | z | ----- | z | ----- | z | 77.35 | j |
2021 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2022 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 63.05 | 67.62 | 72.61 | 79.85 | 87.07 | 96.02 | 94.21 | 91.63 | 88.98 | 81.47 | 70.83 | 63.49 | 79.49 | |||||||||||||
S.D. | 3.58 | 3.62 | 3.63 | 3.08 | 2.36 | 2.51 | 2.31 | 2.35 | 1.96 | 3.33 | 3.13 | 3.18 | 1.40 | |||||||||||||
SKEW | 0.22 | 0.48 | -0.07 | -0.69 | 0.30 | 0.07 | 0.35 | 0.39 | 0.33 | -0.37 | 0.07 | -0.27 | 0.60 | |||||||||||||
MAX | 73.24 | 77.71 | 79.19 | 86.76 | 91.94 | 100.54 | 100.00 | 97.63 | 92.45 | 87.28 | 76.53 | 69.29 | 82.92 | |||||||||||||
MIN | 54.48 | 61.04 | 64.90 | 70.68 | 82.60 | 91.10 | 89.81 | 87.42 | 85.57 | 73.63 | 66.07 | 56.13 | 76.39 | |||||||||||||
YRS | 37 | 42 | 39 | 38 | 40 | 39 | 40 | 38 | 38 | 41 | 38 | 40 | 31 |