YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1962 | ----- | z | ----- | z | 58.04 | g | 70.37 | 67.35 | 81.37 | 91.63 | a | 84.42 | 84.03 | 64.13 | 55.23 | 47.06 | 71.73 | c | ||||||||
1963 | 45.29 | 58.50 | 56.13 | a | 57.33 | 73.26 | 77.83 | 83.03 | 86.24 | b | 84.03 | a | 65.45 | 51.47 | 45.35 | 65.33 | ||||||||||
1964 | 45.26 | 54.00 | 56.84 | 64.43 | 70.19 | 78.10 | 87.45 | 87.41 | b | 81.89 | b | 73.52 | 49.60 | 46.48 | 66.27 | |||||||||||
1965 | 42.55 | 54.43 | 63.00 | a | 64.00 | 71.90 | 80.97 | 91.27 | a | 85.27 | a | 81.52 | a | 71.30 | a | 52.60 | 44.10 | 66.91 | ||||||||
1966 | 47.55 | 50.57 | 58.45 | 70.93 | 76.94 | 80.80 | 86.00 | 89.39 | 81.24 | a | 70.10 | a | 53.90 | a | 46.84 | 67.73 | ||||||||||
1967 | 46.53 | a | 54.22 | a | 53.97 | a | 55.07 | b | 75.26 | 84.30 | 92.61 | 96.71 | 86.63 | 66.42 | 53.89 | b | 43.48 | 67.43 | ||||||||
1968 | 45.23 | 57.59 | 60.57 | a | 66.07 | 73.00 | a | 83.40 | 92.23 | 83.39 | 80.90 | 65.77 | 51.50 | b | 45.55 | 67.10 | ||||||||||
1969 | 41.48 | 47.07 | 60.42 | 63.60 | 78.81 | 80.67 | 89.03 | 88.68 | 81.70 | 62.84 | 53.07 | 46.97 | 66.19 | |||||||||||||
1970 | 48.16 | 56.00 | 58.87 | 58.33 | 75.35 | 85.40 | 93.84 | 91.87 | 79.93 | 67.84 | 53.37 | 43.97 | 67.74 | |||||||||||||
1971 | 44.87 | 50.54 | 53.10 | 60.60 | 70.90 | 77.33 | 90.52 | 89.84 | 77.77 | 64.32 | 52.13 | 42.74 | 64.55 | |||||||||||||
1972 | 44.94 | 51.76 | 62.63 | a | 62.97 | 77.45 | 84.97 | 95.20 | a | 91.36 | f | ----- | z | ----- | z | 50.65 | m | 43.19 | 65.39 | d | ||||||
1973 | 45.42 | 54.86 | 53.84 | 67.13 | 77.35 | 80.17 | 90.42 | 86.81 | 79.70 | 65.55 | 49.37 | 49.55 | 66.68 | |||||||||||||
1974 | 46.97 | 50.36 | 56.61 | 61.93 | a | 70.97 | 83.40 | 85.90 | 89.71 | 90.57 | 72.81 | 53.87 | 47.55 | 67.55 | ||||||||||||
1975 | 47.84 | 49.86 | 53.00 | 58.13 | 74.19 | 79.67 | 87.06 | 84.29 | 87.77 | 62.65 | 50.87 | 47.13 | 65.20 | |||||||||||||
1976 | 49.74 | 52.28 | 56.45 | 60.60 | 73.55 | 76.57 | 86.16 | 80.00 | 81.27 | 73.45 | 55.00 | 43.45 | 65.71 | |||||||||||||
1977 | 45.90 | 58.25 | 55.39 | 69.47 | 63.61 | 84.70 | 86.81 | 90.00 | 76.63 | 67.35 | 53.87 | 50.10 | 66.84 | |||||||||||||
1978 | 48.87 | 53.68 | 63.58 | 58.73 | 70.06 | 79.90 | 87.81 | 84.65 | 72.30 | 74.77 | 53.20 | 44.68 | 66.02 | |||||||||||||
1979 | 45.29 | 49.21 | 61.55 | 61.03 | 74.29 | 81.37 | 86.65 | 82.58 | 83.47 | 70.35 | 49.00 | 48.84 | 66.14 | |||||||||||||
1980 | 49.03 | 54.59 | 55.52 | 64.10 | 70.42 | 72.27 | 87.45 | 87.26 | 82.87 | 71.87 | 53.48 | a | 47.74 | 66.38 | ||||||||||||
1981 | 48.39 | 52.36 | 58.26 | 65.77 | 70.61 | 80.00 | 88.87 | 91.84 | 82.13 | 65.68 | 52.37 | 49.68 | 67.16 | |||||||||||||
1982 | 43.73 | a | 52.61 | 53.58 | 59.77 | 76.13 | 79.90 | a | 84.94 | 86.48 | 77.30 | 67.23 | 51.87 | 47.74 | 65.11 | |||||||||||
1983 | 46.84 | 50.52 | a | 55.16 | 60.27 | 74.42 | 76.70 | 79.68 | 84.97 | 78.03 | 68.58 | 51.80 | 46.48 | 64.45 | ||||||||||||
1984 | 49.16 | 52.93 | 59.94 | 59.70 | 71.17 | a | 77.17 | 91.42 | 87.39 | 81.83 | 62.97 | 49.90 | 42.63 | a | 65.52 | |||||||||||
1985 | 47.10 | 55.00 | 55.39 | 70.40 | 70.87 | 83.60 | 91.35 | 87.23 | 75.47 | 68.87 | 47.60 | 44.43 | a | 66.44 | ||||||||||||
1986 | 50.35 | 55.04 | 64.33 | a | 64.13 | 72.93 | a | 83.60 | 86.58 | 94.23 | 74.03 | 70.48 | 57.13 | 46.23 | 68.26 | |||||||||||
1987 | 47.60 | a | 53.86 | 57.94 | 72.97 | a | 75.68 | 86.00 | 82.73 | a | 93.13 | 82.20 | 78.00 | 55.57 | 46.40 | a | 69.34 | |||||||||
1988 | 46.68 | 60.10 | 61.87 | 65.63 | 69.39 | 78.13 | 92.45 | 92.93 | a | 87.27 | 79.90 | b | 52.41 | a | 45.39 | 69.35 | ||||||||||
1989 | 47.42 | 49.39 | 54.94 | 71.10 | 72.35 | 82.53 | 84.52 | 87.19 | 84.83 | 69.87 | 56.00 | 46.87 | a | 67.25 | ||||||||||||
1990 | 49.65 | 51.75 | 61.77 | 71.73 | 70.87 | 78.50 | 91.97 | 87.13 | 85.27 | 69.77 | 53.00 | 42.23 | 67.80 | |||||||||||||
1991 | 49.97 | 60.52 | a | 54.48 | 61.93 | 68.00 | 79.40 | 93.16 | 90.16 | 92.53 | 77.84 | 59.00 | a | 44.87 | 69.32 | |||||||||||
1992 | 50.68 | 58.07 | 64.29 | 67.47 | 83.77 | 83.53 | 90.48 | 95.58 | 85.67 | 72.90 | 55.43 | 44.94 | 71.07 | |||||||||||||
1993 | 43.81 | 49.25 | 60.87 | 59.40 | 70.68 | 77.90 | 84.10 | 87.50 | a | 88.03 | 73.52 | 53.77 | 47.45 | 66.36 | ||||||||||||
1994 | 50.74 | 53.07 | a | 64.26 | 66.69 | a | 75.35 | 80.23 | 94.97 | 88.87 | 86.37 | 70.58 | 47.33 | 46.61 | 68.76 | |||||||||||
1995 | 49.81 | 58.75 | 55.39 | 63.23 | 73.55 | 78.20 | 87.97 | 88.73 | a | 86.23 | 73.48 | 59.47 | 50.84 | 68.80 | ||||||||||||
1996 | 47.71 | 54.38 | 61.58 | 65.03 | 70.74 | 82.69 | a | 96.03 | 94.39 | 82.63 | 69.52 | 55.77 | 48.84 | 69.11 | ||||||||||||
1997 | 47.29 | 54.39 | 59.84 | 64.37 | 78.87 | 78.90 | 91.06 | 89.93 | a | 80.70 | 65.48 | 54.20 | 44.16 | 67.43 | ||||||||||||
1998 | 50.35 | 48.79 | 57.74 | 64.69 | a | 64.61 | 80.93 | 93.13 | 95.39 | 89.17 | 67.65 | 52.63 | 46.23 | a | 67.61 | |||||||||||
1999 | 47.71 | 47.21 | 54.00 | 65.20 | 71.77 | 81.93 | a | 90.97 | 88.16 | 90.03 | 74.77 | 57.43 | 46.00 | 67.93 | ||||||||||||
2000 | 46.48 | 53.10 | 58.58 | 69.69 | a | 71.39 | 86.60 | 89.65 | 92.42 | 84.13 | 70.68 | 50.03 | 46.35 | 68.26 | ||||||||||||
2001 | 49.74 | 53.57 | 62.29 | 62.10 | 83.00 | 81.14 | a | 91.55 | 92.29 | 88.27 | 74.45 | 55.40 | 47.68 | 70.12 | ||||||||||||
2002 | 48.55 | 57.43 | 59.00 | 69.00 | 74.30 | a | 85.77 | 95.42 | 92.06 | 88.27 | 75.39 | 57.60 | 48.16 | 70.91 | ||||||||||||
2003 | 53.10 | 56.32 | 60.16 | 57.40 | 74.67 | a | 88.53 | 97.16 | 91.45 | 90.53 | 75.94 | 52.33 | 48.29 | 70.49 | ||||||||||||
2004 | 47.77 | 53.55 | 67.48 | 71.40 | 74.60 | a | 83.83 | 95.16 | 93.23 | 83.53 | 70.55 | 55.13 | 50.32 | 70.55 | ||||||||||||
2005 | 45.90 | 58.57 | 64.16 | 64.27 | 71.53 | a | 76.40 | 94.55 | 97.16 | 84.60 | 70.03 | 51.90 | 47.32 | 68.87 | ||||||||||||
2006 | 49.26 | 58.00 | 51.90 | 65.17 | 77.68 | 84.79 | a | 96.23 | 93.63 | a | 88.72 | a | 74.00 | a | 54.60 | 48.00 | 70.17 | |||||||||
2007 | 48.03 | 50.96 | a | 66.40 | u | 67.21 | b | 79.29 | c | 83.83 | a | 94.03 | 95.52 | b | 86.07 | 67.10 | b | 59.17 | 49.16 | 70.94 | a | |||||
2008 | 47.81 | 57.15 | c | 59.52 | 67.07 | c | 80.36 | f | 88.97 | 97.70 | d | 94.43 | a | 93.10 | a | 72.57 | a | 56.58 | k | 46.35 | h | 75.37 | c | |||
2009 | 49.43 | a | 53.19 | a | 60.04 | c | 71.28 | a | 81.35 | 84.93 | 97.61 | 93.13 | 87.77 | 67.61 | c | 51.67 | 41.90 | 69.99 | ||||||||
2010 | 50.34 | b | 55.04 | 58.83 | a | 61.71 | b | 68.96 | d | 79.87 | 95.94 | 93.52 | b | 84.10 | 70.45 | 53.70 | 47.42 | 68.32 | ||||||||
2011 | 48.48 | 51.12 | b | 53.61 | c | 61.66 | a | 69.13 | 82.40 | 90.62 | g | 95.52 | 92.43 | 70.33 | a | 52.90 | 46.03 | 65.78 | a | |||||||
2012 | 49.45 | 53.83 | 54.58 | 65.80 | 77.87 | 80.17 | 92.84 | 96.41 | b | 92.68 | b | 72.13 | 54.80 | 44.61 | 69.60 | |||||||||||
2013 | 44.39 | 54.11 | 63.03 | a | 70.53 | 78.32 | 85.80 | 99.26 | 91.65 | 81.64 | b | 70.80 | a | 53.97 | 40.63 | a | 69.51 | |||||||||
2014 | 48.87 | a | 56.43 | 63.26 | 72.37 | 79.26 | 87.17 | 100.16 | 97.26 | 88.18 | b | 74.00 | c | 55.90 | 51.19 | 72.84 | ||||||||||
2015 | 50.45 | 59.21 | 68.42 | 69.93 | 79.87 | 94.37 | 96.13 | 92.58 | 85.63 | 77.29 | 52.00 | 47.19 | 72.76 | |||||||||||||
2016 | 47.15 | d | 57.41 | 60.52 | 73.83 | 80.68 | 88.17 | 91.90 | 99.00 | 87.24 | a | 63.61 | 58.71 | i | ----- | z | 74.95 | b | ||||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 47.61 | 53.98 | 58.89 | 65.00 | 73.86 | 81.92 | 90.98 | 90.39 | 84.28 | 70.27 | 53.45 | 46.36 | 67.94 | |||||||||||||
S.D. | 2.29 | 3.31 | 3.97 | 4.64 | 4.35 | 3.89 | 4.54 | 4.29 | 4.78 | 4.20 | 2.70 | 2.37 | 2.00 | |||||||||||||
SKEW | -0.37 | -0.03 | 0.24 | 0.01 | 0.12 | 0.45 | -0.20 | -0.15 | -0.26 | 0.08 | 0.06 | -0.17 | 0.43 | |||||||||||||
MAX | 53.10 | 60.52 | 68.42 | 73.83 | 83.77 | 94.37 | 100.16 | 99.00 | 93.10 | 79.90 | 59.47 | 51.19 | 72.84 | |||||||||||||
MIN | 41.48 | 47.07 | 51.90 | 55.07 | 63.61 | 72.27 | 79.68 | 80.00 | 72.30 | 62.65 | 47.33 | 40.63 | 64.45 | |||||||||||||
YRS | 54 | 54 | 53 | 55 | 54 | 55 | 54 | 54 | 54 | 54 | 52 | 53 | 49 |