YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1953 | ----- | z | ----- | z | ----- | z | ----- | z | 68.90 | a | 86.43 | 86.06 | 84.71 | 82.40 | 67.74 | 57.33 | 38.71 | 71.54 | d | |||||||
1954 | 47.94 | 58.25 | 53.45 | 71.53 | 75.42 | 84.47 | 86.00 | 81.39 | 78.67 | 72.06 | 60.00 | 46.23 | 67.95 | |||||||||||||
1955 | 40.77 | 43.21 | 56.55 | 63.83 | 70.97 | 82.67 | 84.00 | 81.10 | 81.17 | 71.68 | 55.73 | 50.03 | 65.14 | |||||||||||||
1956 | 49.84 | 41.79 | 59.23 | 63.17 | 78.32 | 86.50 | 85.16 | 82.94 | 83.20 | 69.68 | 53.00 | 48.97 | 66.82 | |||||||||||||
1957 | 46.10 | 55.96 | 53.84 | 61.20 | 66.94 | 83.13 | 83.94 | 78.94 | 78.93 | 61.19 | 46.23 | 49.94 | 63.86 | |||||||||||||
1958 | 44.23 | 51.89 | 47.84 | 60.70 | 78.00 | 87.30 | 87.48 | 85.94 | 77.27 | 66.68 | 56.60 | 55.26 | 66.60 | |||||||||||||
1959 | 48.74 | 47.54 | 55.84 | 66.70 | 74.39 | 85.27 | 88.52 | 81.90 | 79.73 | 67.58 | 55.00 | 45.58 | 66.40 | |||||||||||||
1960 | 39.13 | 42.34 | 58.77 | 66.97 | 73.26 | 85.77 | 86.00 | 87.00 | 80.63 | 63.35 | 57.60 | 39.77 | 65.05 | |||||||||||||
1961 | 46.16 | 50.50 | 54.84 | 65.40 | 76.26 | 87.47 | 87.68 | 82.42 | 75.33 | 67.03 | 49.07 | 38.00 | 65.01 | |||||||||||||
1962 | 38.94 | 50.96 | 49.87 | 69.73 | 75.71 | 85.07 | 85.61 | 87.97 | 77.87 | 67.90 | 57.57 | 48.13 | 66.28 | |||||||||||||
1963 | 35.87 | 50.14 | 55.97 | 66.60 | 79.97 | 85.83 | 89.10 | 81.42 | 78.53 | 72.16 | 56.10 | 48.94 | 66.72 | |||||||||||||
1964 | 42.77 | 37.28 | 50.13 | 61.33 | 75.61 | 84.10 | 86.81 | 83.58 | 76.37 | 72.48 | 54.83 | 45.45 | 64.23 | |||||||||||||
1965 | 46.84 | 47.32 | 52.55 | 64.40 | 72.13 | 79.60 | 83.29 | 83.48 | 74.67 | 71.55 | 58.90 | 45.23 | 65.00 | |||||||||||||
1966 | 40.45 | 41.54 | 58.45 | 66.53 | 78.06 | 83.20 | 88.32 | 82.77 | 77.00 | 68.81 | 60.70 | 45.84 | 65.97 | |||||||||||||
1967 | 47.90 | 53.82 | 64.58 | 67.83 | 74.68 | 80.53 | 86.55 | 81.48 | 76.07 | 71.55 | 60.10 | 36.94 | 66.84 | |||||||||||||
1968 | 40.39 | 52.79 | 54.81 | 62.13 | 74.00 | 87.30 | 85.42 | 80.58 | 79.13 | 71.77 | 53.30 | 44.26 | 65.49 | |||||||||||||
1969 | 51.68 | 49.57 | 51.94 | 70.17 | 76.35 | 83.70 | 88.03 | 85.97 | 77.50 | 65.03 | 53.47 | 49.55 | 66.91 | |||||||||||||
1970 | 45.10 | 53.89 | 53.84 | 62.87 | 76.77 | 81.93 | 87.03 | 84.06 | 78.60 | 62.26 | 57.70 | 48.61 | 66.06 | |||||||||||||
1971 | 48.58 | 51.00 | 60.77 | 65.57 | 73.71 | 86.20 | 86.77 | 82.23 | 77.70 | 63.48 | 53.67 | 41.52 | 65.93 | |||||||||||||
1972 | 48.58 | 56.69 | 66.65 | 71.10 | 75.61 | 82.83 | 86.97 | 81.26 | 76.30 | 63.81 | 47.67 | 45.65 | 66.93 | |||||||||||||
1973 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1974 | ----- | z | ----- | z | 63.55 | 65.67 | 80.23 | 90.20 | ----- | z | 83.32 | 75.28 | a | 63.68 | 54.30 | 41.45 | 68.63 | c | ||||||||
1975 | 41.26 | 47.27 | b | 53.42 | 60.10 | 71.86 | b | 85.66 | a | 84.26 | 84.29 | 72.93 | ----- | z | ----- | z | 44.77 | a | 64.58 | b | ||||||
1976 | 44.77 | a | 54.76 | 55.03 | 67.14 | a | 74.55 | 85.60 | 87.03 | 83.48 | 74.87 | 63.35 | 53.63 | 42.03 | 65.52 | |||||||||||
1977 | 38.45 | 49.89 | a | 52.52 | 67.93 | a | 74.73 | a | 86.77 | 85.52 | 84.58 | 78.83 | 71.48 | b | 56.60 | 52.43 | a | 66.64 | ||||||||
1978 | 44.74 | ----- | z | 59.52 | 68.43 | 72.29 | 87.33 | ----- | z | 85.23 | a | 79.13 | 72.29 | 53.30 | 41.55 | 66.38 | b | |||||||||
1979 | 37.42 | 47.29 | 55.74 | d | 67.00 | 71.90 | 83.30 | 89.58 | 84.68 | 82.83 | 74.39 | 48.77 | 50.50 | a | 66.12 | |||||||||||
1980 | 46.61 | 53.14 | a | 54.70 | a | 64.67 | 73.73 | a | 90.97 | 91.97 | 85.71 | 81.00 | 67.70 | a | 58.41 | a | 56.29 | 68.74 | ||||||||
1981 | 51.35 | 56.43 | 54.37 | a | 71.00 | 73.35 | 88.97 | 86.97 | 85.39 | 78.90 | 67.16 | 62.43 | 53.29 | 69.13 | ||||||||||||
1982 | 44.73 | a | 47.36 | 57.03 | a | 65.70 | 73.90 | a | 85.40 | 87.67 | a | 82.97 | 78.03 | 66.94 | 53.29 | b | 42.65 | 65.47 | ||||||||
1983 | 44.43 | a | 48.50 | 54.74 | 61.17 | a | 73.39 | 83.63 | 87.32 | 85.71 | 81.40 | 68.42 | 55.33 | 47.93 | a | 66.00 | ||||||||||
1984 | 45.19 | 52.59 | 59.42 | 64.07 | 81.23 | 84.40 | 88.39 | 84.32 | 79.47 | 58.65 | 55.43 | 44.90 | a | 66.50 | ||||||||||||
1985 | 41.73 | a | 47.39 | 56.61 | c | 70.00 | 74.71 | 87.93 | 88.35 | 86.23 | 75.70 | 68.19 | 55.03 | 49.71 | 66.80 | |||||||||||
1986 | 56.17 | a | 55.82 | 63.55 | 68.53 | 75.97 | 84.17 | 85.45 | 86.32 | 76.97 | 66.03 | 53.62 | a | 46.27 | a | 68.24 | ||||||||||
1987 | 42.62 | b | 44.96 | 54.00 | 67.23 | 72.00 | 85.07 | 87.13 | 80.92 | r | 80.10 | 74.13 | 54.30 | 44.74 | 64.21 | a | ||||||||||
1988 | 43.16 | 54.45 | 58.52 | 68.47 | 74.68 | 84.60 | 87.77 | 82.81 | 79.77 | 74.35 | 58.50 | 46.74 | 67.82 | |||||||||||||
1989 | 45.30 | a | 52.93 | a | 65.97 | 75.67 | 80.87 | 86.70 | 90.00 | 86.68 | 82.10 | 69.06 | 59.43 | 49.61 | 70.36 | |||||||||||
1990 | 46.55 | 50.18 | 59.71 | 68.00 | 75.87 | 92.23 | 86.19 | 84.35 | 80.47 | 72.35 | 58.00 | 42.97 | 68.07 | |||||||||||||
1991 | 43.65 | 56.68 | 55.58 | 69.10 | 78.74 | 84.33 | 87.48 | 85.94 | 80.07 | 73.48 | 55.10 | 45.81 | 68.00 | |||||||||||||
1992 | 42.55 | 51.59 | 59.65 | 73.87 | 74.03 | 84.93 | 86.55 | 85.71 | 84.33 | 73.77 | 50.37 | 39.68 | 67.25 | |||||||||||||
1993 | 47.61 | 50.57 | 61.58 | 69.57 | 77.68 | 87.00 | 92.19 | 82.87 | 82.83 | 70.43 | c | 57.14 | a | 52.03 | b | 69.29 | ||||||||||
1994 | 52.42 | 51.25 | 61.87 | 69.17 | 78.42 | 92.07 | 92.77 | a | 89.42 | 80.97 | a | 68.13 | 53.17 | 54.03 | 70.31 | |||||||||||
1995 | 48.58 | 61.39 | 62.10 | 66.13 | 74.35 | 86.00 | 90.71 | 90.23 | 82.67 | 76.48 | 65.17 | 53.06 | 71.41 | |||||||||||||
1996 | 53.68 | 58.90 | 61.97 | b | 71.43 | 85.16 | 89.67 | 92.47 | a | 89.39 | 77.30 | 68.73 | a | 59.40 | 52.58 | 71.72 | ||||||||||
1997 | 44.65 | 51.11 | 67.65 | 64.87 | 79.65 | 86.20 | 89.77 | 87.35 | 84.03 | 71.54 | e | 57.90 | a | 43.39 | c | 69.01 | ||||||||||
1998 | 50.52 | 49.96 | d | 59.55 | b | 65.14 | a | 80.31 | b | 88.32 | b | 89.37 | a | 89.52 | 86.18 | b | 69.23 | a | 60.50 | 51.97 | a | 70.05 | ||||
1999 | 57.86 | b | 60.11 | a | 66.76 | b | 66.46 | b | 77.03 | a | 87.72 | a | 87.38 | b | 84.55 | 79.21 | b | 75.61 | 68.39 | b | 47.13 | 71.52 | ||||
2000 | 55.26 | 58.86 | 59.90 | b | 73.45 | a | 85.03 | b | 89.27 | 93.10 | 91.55 | 85.83 | a | 67.77 | 48.89 | b | 52.50 | a | 71.78 | |||||||
2001 | 41.68 | 52.79 | 61.80 | a | 72.47 | 81.73 | a | 90.33 | 91.20 | a | 88.10 | 86.41 | a | 75.84 | 59.00 | a | 49.23 | a | 70.88 | |||||||
2002 | 47.90 | a | 55.68 | 62.00 | a | 74.90 | 82.03 | a | 93.76 | a | 94.32 | 91.97 | a | 81.33 | 68.87 | 60.82 | b | 48.43 | c | 71.83 | ||||||
2003 | 60.41 | b | 53.56 | a | 62.23 | a | 70.72 | a | 81.45 | 89.90 | 98.23 | a | 90.10 | 85.30 | 78.10 | 60.04 | b | 51.74 | d | 73.48 | ||||||
2004 | 51.70 | a | 49.36 | a | 68.67 | a | 64.71 | f | 81.80 | a | 89.67 | 90.93 | b | 87.35 | 81.67 | 69.23 | 53.64 | e | 50.97 | a | 70.45 | a | ||||
2005 | 54.48 | b | 51.48 | a | 57.96 | d | 69.27 | 80.65 | 87.67 | 96.93 | a | 89.13 | a | 84.43 | 72.03 | 64.27 | 55.66 | b | 72.00 | |||||||
2006 | 54.72 | b | 59.57 | 60.18 | c | 73.83 | a | 85.14 | b | 93.00 | 91.10 | 83.84 | 79.07 | 70.90 | a | 64.25 | b | 47.16 | 71.90 | |||||||
2007 | 43.58 | 53.20 | c | 65.93 | c | 69.90 | 77.45 | 89.50 | 94.06 | 91.94 | 83.52 | c | 75.45 | 65.45 | a | 49.43 | a | 71.62 | ||||||||
2008 | 44.29 | 55.54 | c | 64.83 | a | 70.35 | j | 76.47 | a | 91.17 | a | 90.27 | a | 91.87 | 82.47 | 75.23 | 62.70 | 49.00 | a | 71.26 | a | |||||
2009 | 52.00 | 60.41 | a | 63.70 | a | 68.13 | 81.48 | b | 84.24 | a | 93.74 | 90.70 | a | 80.60 | 69.87 | 63.37 | 45.81 | d | 71.17 | |||||||
2010 | 45.88 | e | 50.07 | a | 59.37 | a | 67.90 | a | 77.81 | 91.90 | 90.71 | 86.41 | b | 88.11 | c | 75.47 | a | 58.73 | 58.54 | c | 70.91 | |||||
2011 | 49.85 | e | 60.73 | m | 66.62 | b | 73.39 | b | 76.84 | 91.77 | 93.39 | 93.45 | 83.67 | 74.00 | 57.80 | 38.00 | c | 72.62 | a | |||||||
2012 | 43.35 | 51.28 | 64.29 | 72.69 | a | 81.55 | 93.00 | 87.48 | 87.97 | 81.43 | ----- | z | ----- | z | ----- | z | 73.67 | c | ||||||||
2013 | 45.58 | ----- | z | 65.00 | b | 69.52 | g | 79.48 | 94.92 | f | 90.54 | c | 87.81 | 81.57 | 71.10 | 59.15 | c | 52.90 | a | 70.35 | c | |||||
2014 | 58.10 | a | 60.93 | 65.67 | a | 71.93 | c | 76.97 | b | 92.69 | a | 92.64 | c | 83.64 | f | 83.96 | b | 75.63 | a | 61.54 | f | 50.45 | b | 72.90 | b | |
2015 | 50.00 | a | 62.00 | a | 64.21 | b | 68.59 | a | 73.57 | c | 91.30 | 86.19 | 89.03 | 85.27 | ----- | z | 58.73 | 49.71 | 70.78 | a | ||||||
2016 | 48.19 | 61.83 | 67.55 | 69.10 | 74.87 | a | 93.14 | b | 95.23 | a | 85.68 | 83.47 | 77.74 | 60.10 | 51.20 | a | 72.34 | |||||||||
2017 | 47.74 | 59.11 | 69.58 | 70.73 | ----- | z | 92.61 | g | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 61.79 | h | ||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 46.79 | 52.32 | 59.44 | 67.85 | 76.67 | 87.11 | 88.87 | 85.72 | 80.33 | 70.01 | 56.98 | 47.59 | 68.14 | |||||||||||||
S.D. | 5.27 | 5.44 | 5.20 | 3.73 | 3.82 | 3.39 | 3.30 | 3.30 | 3.30 | 4.30 | 4.52 | 4.85 | 2.57 | |||||||||||||
SKEW | 0.41 | -0.30 | -0.03 | -0.09 | 0.17 | 0.18 | 0.72 | 0.36 | 0.09 | -0.34 | -0.02 | -0.21 | 0.36 | |||||||||||||
MAX | 60.41 | 62.00 | 69.58 | 75.67 | 85.16 | 93.76 | 98.23 | 93.45 | 88.11 | 78.10 | 68.39 | 58.54 | 73.48 | |||||||||||||
MIN | 35.87 | 37.28 | 47.84 | 60.10 | 66.94 | 79.60 | 83.29 | 78.94 | 72.93 | 58.65 | 46.23 | 36.94 | 63.86 | |||||||||||||
YRS | 62 | 59 | 63 | 60 | 63 | 62 | 61 | 61 | 63 | 60 | 60 | 62 | 51 |