YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1960 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 75.80 | 66.48 | 59.03 | a | 49.00 | c | 62.58 | h | ||
1961 | 51.19 | d | 51.04 | a | 54.70 | a | 63.03 | a | 70.61 | 82.33 | 80.50 | a | 74.45 | 71.03 | 67.03 | a | 52.30 | 45.81 | 63.67 | |||||||
1962 | 48.77 | 51.14 | 49.90 | 68.21 | b | 70.29 | 78.70 | 80.81 | 83.26 | 75.57 | 67.70 | a | 60.50 | 56.06 | 65.91 | |||||||||||
1963 | 53.55 | 56.89 | a | 53.67 | a | 58.28 | a | 69.41 | b | 71.50 | 80.26 | 72.81 | 75.10 | a | 67.87 | 55.52 | a | 51.87 | 63.89 | |||||||
1964 | 44.97 | 44.83 | 46.06 | 53.67 | 66.48 | 73.60 | 78.61 | 72.71 | 68.50 | 69.32 | 51.70 | 48.81 | 59.94 | |||||||||||||
1965 | 50.61 | 45.93 | 47.10 | 55.60 | 63.13 | 68.13 | 77.84 | 77.77 | 70.47 | 69.23 | 58.30 | 47.81 | 60.99 | |||||||||||||
1966 | 43.16 | 41.18 | 54.90 | 60.17 | 67.81 | 74.67 | 77.65 | 74.29 | 69.97 | 64.00 | 57.17 | 50.29 | 61.27 | |||||||||||||
1967 | 48.94 | 52.00 | 55.16 | 52.73 | 65.48 | 70.47 | 76.55 | 76.10 | 71.77 | 67.48 | 60.00 | 45.94 | 61.88 | |||||||||||||
1968 | 47.87 | 53.34 | 50.35 | 54.60 | 66.52 | 72.93 | 75.81 | 70.42 | 72.50 | 66.81 | 53.43 | 48.00 | 61.05 | |||||||||||||
1969 | 50.45 | 44.29 | 45.97 | 59.50 | 67.33 | a | 71.20 | 76.35 | 77.29 | 73.60 | 61.00 | 52.67 | 48.65 | 60.69 | ||||||||||||
1970 | 48.90 | 52.43 | 50.19 | 57.03 | 72.77 | 80.70 | 82.39 | 77.45 | 71.10 | 61.94 | 59.03 | 48.97 | 63.58 | |||||||||||||
1971 | 51.13 | 49.68 | 57.94 | 60.63 | 66.77 | 77.90 | 81.74 | 72.35 | 72.80 | 57.84 | 53.90 | 43.90 | 62.22 | |||||||||||||
1972 | 51.94 | 54.93 | 64.03 | 63.87 | 70.35 | 77.67 | 81.03 | 77.10 | 74.20 | 61.03 | 48.70 | 47.07 | a | 64.33 | ||||||||||||
1973 | 43.16 | 46.11 | 43.71 | 56.07 | 70.29 | 78.67 | 80.00 | 79.39 | 77.50 | 70.39 | 55.77 | 52.03 | 62.76 | |||||||||||||
1974 | 46.26 | 50.46 | 55.52 | 61.83 | 71.94 | 85.07 | 77.00 | 77.35 | 72.03 | 62.32 | 54.73 | 45.13 | 63.30 | |||||||||||||
1975 | 48.48 | 46.68 | 50.19 | 52.20 | 66.55 | 80.10 | 77.74 | 81.35 | 75.40 | 68.35 | 60.40 | 51.35 | 63.23 | |||||||||||||
1976 | 51.13 | 51.97 | 53.97 | 59.90 | 73.32 | 82.83 | 79.83 | a | 80.81 | 71.07 | 63.39 | 55.83 | 49.84 | 64.49 | ||||||||||||
1977 | 44.61 | 53.46 | 50.16 | 63.87 | 65.87 | 82.80 | 81.77 | 80.48 | 78.10 | 69.48 | 60.67 | 54.00 | 65.44 | |||||||||||||
1978 | 48.61 | 47.36 | 55.39 | 61.30 | 69.06 | 83.47 | 83.23 | 79.16 | 75.57 | 70.77 | 52.70 | 47.03 | 64.47 | |||||||||||||
1979 | 41.97 | 52.46 | 52.90 | 64.00 | 70.42 | 81.00 | 83.61 | 78.39 | 82.07 | 73.90 | 56.43 | 55.97 | 66.09 | |||||||||||||
1980 | 49.94 | 53.79 | 52.06 | 61.00 | 64.39 | 82.57 | 83.45 | 79.77 | 78.57 | 69.32 | 60.53 | 58.87 | 66.19 | |||||||||||||
1981 | 52.97 | 56.54 | 51.42 | 67.00 | 70.06 | 84.27 | 80.58 | 80.65 | 76.60 | 65.42 | 64.57 | 57.26 | 67.28 | |||||||||||||
1982 | 48.84 | 51.75 | 55.87 | 65.87 | 70.13 | 79.97 | 80.84 | 78.52 | 76.00 | 68.74 | 54.10 | 47.00 | a | 64.80 | ||||||||||||
1983 | 51.29 | 49.07 | 50.27 | a | 55.83 | 70.63 | a | 78.50 | 81.97 | a | 76.65 | 77.10 | a | 64.19 | 54.17 | 50.55 | 63.35 | |||||||||
1984 | 49.26 | 53.21 | 58.81 | 60.63 | 77.39 | 79.30 | 75.81 | 74.50 | a | 76.03 | a | 59.68 | 56.60 | 46.68 | 63.99 | |||||||||||
1985 | 45.29 | 49.39 | 55.84 | 66.57 | 72.71 | 83.60 | 82.55 | 79.57 | a | 72.17 | 65.61 | 53.67 | 53.03 | 65.00 | ||||||||||||
1986 | 57.97 | 51.58 | b | 58.71 | 64.00 | 73.87 | 80.50 | 77.10 | 77.77 | 71.07 | 63.97 | 57.57 | 49.03 | a | 65.26 | |||||||||||
1987 | 49.97 | 48.29 | 51.35 | 67.14 | a | 68.39 | 81.53 | 82.13 | 76.58 | 72.87 | 71.13 | 54.30 | 47.31 | b | 64.25 | |||||||||||
1988 | 49.26 | 54.83 | 57.97 | 62.30 | 71.58 | 81.53 | 82.35 | 76.93 | a | 75.77 | 71.19 | 57.70 | 49.23 | a | 65.89 | |||||||||||
1989 | 47.63 | a | 53.70 | a | 62.30 | a | 72.24 | a | 73.53 | a | 81.63 | c | 84.19 | 77.13 | 78.50 | 66.58 | 60.54 | d | 51.83 | b | 67.48 | |||||
1990 | 49.38 | b | 47.39 | 57.13 | 63.75 | b | 69.19 | 84.30 | 78.06 | 74.87 | a | 74.79 | a | 69.53 | a | 58.61 | b | 49.38 | e | 64.70 | ||||||
1991 | 48.07 | b | 56.33 | a | 47.90 | b | 61.66 | a | 69.13 | a | 74.70 | 79.81 | d | 78.65 | e | 73.47 | 70.38 | b | 56.96 | c | 46.07 | d | 63.59 | |||
1992 | 47.93 | d | 50.00 | 51.63 | a | 67.00 | a | 70.37 | a | 78.93 | a | 79.33 | g | 76.57 | c | 76.19 | c | 69.53 | a | 55.26 | c | 45.89 | c | 62.66 | a | |
1993 | 49.10 | a | 47.37 | a | 57.10 | 65.00 | d | 72.90 | b | 79.29 | b | 79.36 | c | 77.11 | c | 74.53 | 65.40 | a | 54.17 | 52.14 | c | 64.45 | ||||
1994 | 54.14 | b | 49.75 | 57.03 | a | 63.93 | 69.90 | 83.57 | 85.29 | 81.21 | b | 76.83 | a | 65.13 | 54.03 | 51.89 | d | 66.06 | ||||||||
1995 | 47.68 | c | 56.25 | 55.53 | a | 60.55 | a | 65.35 | 77.00 | 84.93 | a | 81.79 | b | ----- | z | ----- | z | ----- | z | 53.32 | f | 66.14 | d | |||
1996 | 56.44 | d | 54.12 | c | 58.21 | c | 66.88 | f | 76.52 | h | 84.00 | c | 81.44 | d | 78.77 | a | 70.83 | a | 65.94 | 60.96 | c | 54.52 | b | 66.52 | b | |
1997 | 46.31 | e | 52.04 | a | 61.21 | c | 61.00 | 78.79 | c | 79.65 | g | 87.23 | 81.97 | 79.03 | a | 68.29 | 61.43 | 46.11 | d | 65.76 | a | |||||
1998 | 51.36 | c | 42.85 | a | 51.42 | 55.87 | 67.77 | 76.90 | 80.29 | 78.35 | 75.67 | 67.37 | a | 59.17 | a | 50.59 | b | 63.13 | ||||||||
1999 | 52.86 | b | 57.54 | b | 59.93 | a | 58.85 | d | 69.61 | 78.63 | 76.28 | b | 78.87 | a | 75.33 | 72.19 | 66.36 | b | 51.54 | c | 66.50 | |||||
2000 | 56.45 | b | 55.62 | 54.77 | e | 68.27 | 78.16 | 80.57 | 81.42 | 79.26 | 79.14 | a | 63.30 | d | 49.76 | a | 56.31 | b | 66.92 | |||||||
2001 | 45.42 | e | 48.64 | 54.76 | b | 60.86 | a | 75.87 | 80.79 | b | 77.87 | 78.52 | 79.60 | 69.63 | a | 59.38 | a | 50.21 | b | 65.13 | ||||||
2002 | 52.43 | a | 55.46 | 57.42 | 67.52 | a | 73.00 | 84.70 | 81.06 | 79.43 | a | 77.03 | a | 65.13 | 60.14 | b | 47.77 | a | 66.76 | |||||||
2003 | 58.93 | a | 48.96 | 52.39 | 61.48 | a | 73.69 | b | 79.90 | 83.81 | 77.47 | a | 76.52 | a | 70.84 | 55.37 | 54.33 | d | 66.14 | |||||||
2004 | 47.36 | c | 46.18 | a | 61.42 | 60.70 | c | 72.26 | 80.46 | b | 80.59 | b | 76.62 | g | 65.52 | i | 62.14 | b | 50.89 | b | 49.85 | d | 61.18 | b | ||
2005 | 50.64 | c | 47.44 | a | 53.00 | a | 61.74 | c | 71.90 | 79.03 | 85.48 | b | 75.65 | k | 78.26 | k | 68.13 | a | 62.07 | b | 55.30 | a | 63.48 | b | ||
2006 | 53.55 | b | 54.82 | 51.55 | 62.93 | c | 74.65 | 81.36 | b | 80.57 | c | 74.18 | c | 69.83 | a | 64.13 | a | 62.11 | b | 50.14 | b | 64.98 | ||||
2007 | 44.39 | c | 50.48 | a | 60.16 | 63.33 | 73.71 | 82.59 | a | 81.25 | g | 77.77 | 75.67 | 68.83 | a | 62.38 | a | 46.97 | b | 64.21 | a | |||||
2008 | 46.85 | d | 51.89 | a | 57.68 | l | 64.08 | d | 67.20 | f | 82.39 | b | 76.58 | 74.65 | h | 74.79 | a | 68.32 | 61.52 | i | 49.57 | c | 64.31 | d | ||
2009 | 52.38 | g | 53.33 | d | 55.86 | x | 59.29 | f | 73.37 | a | 74.82 | b | 82.16 | f | 80.84 | f | 76.62 | d | 64.55 | 61.52 | a | 46.79 | b | 64.43 | e | |
2010 | 48.89 | c | 47.10 | g | 52.31 | b | 60.07 | c | 68.71 | g | 79.28 | a | 81.10 | b | 79.93 | c | 79.21 | a | 68.27 | a | 56.24 | a | 56.17 | b | 66.15 | b |
2011 | 52.33 | d | 48.21 | 60.22 | d | 63.00 | b | 68.76 | f | 80.48 | a | 79.97 | 81.50 | a | 78.04 | c | 70.73 | e | 53.81 | c | 41.50 | e | 64.53 | a | ||
2012 | 53.62 | b | 50.73 | c | 56.69 | b | 64.83 | 73.38 | b | 81.86 | a | 77.43 | a | 79.67 | a | 73.70 | c | 69.90 | a | 62.70 | c | 50.37 | d | 66.24 | ||
2013 | 45.96 | d | 46.29 | 60.59 | b | 62.77 | d | 71.87 | a | 82.96 | b | 77.93 | d | 77.89 | d | 74.24 | a | 65.41 | b | 57.39 | b | 48.60 | f | 65.75 | a | |
2014 | 56.00 | d | 56.46 | 59.39 | c | 63.83 | 71.11 | c | 82.30 | c | 79.37 | a | 75.24 | f | 72.61 | b | 68.43 | a | 58.11 | b | 49.68 | c | 65.21 | a | ||
2015 | 51.17 | b | 57.19 | a | 59.42 | 63.86 | b | 65.00 | e | 81.64 | b | 76.52 | 80.59 | b | 73.77 | 66.33 | d | 55.86 | a | 48.90 | b | 65.02 | ||||
2016 | 48.77 | a | 59.23 | c | 60.52 | b | 62.54 | b | 68.19 | 83.33 | 82.63 | d | 76.79 | b | 72.09 | g | 72.78 | d | 59.86 | b | 52.46 | e | 66.10 | a | ||
2017 | 46.37 | d | 54.95 | g | 63.81 | d | 65.89 | b | 69.40 | a | 84.35 | d | 78.80 | f | 78.82 | i | 74.68 | b | 74.37 | a | 66.44 | l | ----- | z | 68.41 | e |
2018 | ----- | z | 49.50 | n | 57.39 | c | 68.86 | a | 72.79 | c | 81.04 | b | 80.30 | d | 78.12 | e | 77.59 | c | 62.10 | 58.46 | d | 51.04 | e | 68.77 | b | |
2019 | 52.04 | d | 45.61 | e | 57.19 | d | 65.00 | c | 64.43 | c | 80.34 | a | 83.21 | c | 82.52 | d | 74.31 | a | 68.07 | d | 61.64 | b | 51.11 | c | 65.46 | |
2020 | 54.21 | c | 51.00 | a | 57.07 | p | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 52.61 | 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 | 44.11 | v | ----- | z |
2023 | 51.00 | r | ----- | z | 51.44 | o | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 76.45 | s | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 49.77 | 51.04 | 55.03 | 62.07 | 70.42 | 79.80 | 80.40 | 77.98 | 74.87 | 67.07 | 57.32 | 50.09 | 64.37 | |||||||||||||
S.D. | 3.69 | 4.05 | 4.63 | 4.20 | 3.50 | 3.83 | 2.74 | 2.72 | 2.88 | 3.53 | 3.77 | 3.56 | 1.87 | |||||||||||||
SKEW | 0.26 | -0.19 | -0.24 | -0.33 | 0.13 | -1.14 | 0.18 | -0.53 | -0.03 | -0.34 | -0.03 | 0.31 | -0.53 | |||||||||||||
MAX | 58.93 | 59.23 | 64.03 | 72.24 | 78.79 | 85.07 | 87.23 | 83.26 | 82.07 | 74.37 | 66.36 | 58.87 | 67.48 | |||||||||||||
MIN | 41.97 | 41.18 | 43.71 | 52.20 | 63.13 | 68.13 | 75.81 | 70.42 | 68.50 | 57.84 | 48.70 | 41.50 | 59.94 | |||||||||||||
YRS | 58 | 57 | 57 | 57 | 55 | 58 | 55 | 53 | 56 | 59 | 57 | 57 | 43 |