YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1957 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 50.23 | 46.61 | 48.42 | j | ||
1958 | 45.87 | 55.14 | 54.30 | a | 68.70 | 85.87 | 95.10 | 97.55 | 97.29 | 84.07 | 74.65 | 56.57 | 52.26 | 72.28 | ||||||||||||
1959 | 48.32 | 52.82 | 65.19 | 75.30 | 82.06 | 95.07 | 100.26 | 93.32 | 86.33 | 72.16 | 54.76 | a | 45.65 | 72.60 | ||||||||||||
1960 | 37.65 | 47.66 | 62.58 | 71.40 | 80.29 | 94.77 | 99.52 | 96.87 | 89.83 | 69.06 | 56.27 | 40.32 | 70.52 | |||||||||||||
1961 | 44.19 | 54.36 | 58.35 | 69.87 | 81.06 | 95.13 | 97.71 | 92.61 | 80.60 | 71.03 | 52.43 | 37.13 | 69.54 | |||||||||||||
1962 | 41.42 | 51.71 | 53.87 | 75.60 | 78.42 | 90.10 | 96.26 | 96.65 | 88.23 | 73.03 | 59.66 | a | 46.32 | 70.94 | ||||||||||||
1963 | 34.61 | 55.96 | 58.42 | 67.40 | 85.03 | 88.83 | 99.68 | 93.19 | 86.57 | 77.77 | 58.13 | 46.10 | 70.98 | |||||||||||||
1964 | 44.06 | 48.97 | 55.10 | 66.83 | 78.81 | 88.23 | 98.94 | 92.97 | 84.93 | 78.71 | 53.57 | 45.48 | 69.72 | |||||||||||||
1965 | 46.00 | 50.18 | 56.29 | 65.23 | 74.87 | 83.77 | 93.65 | 94.13 | 82.67 | 74.74 | 60.20 | 43.65 | 68.78 | |||||||||||||
1966 | 40.94 | 42.61 | 60.81 | 72.17 | 84.35 | 91.57 | 96.68 | 96.61 | 85.67 | 70.77 | 58.67 | 45.74 | 70.55 | |||||||||||||
1967 | 42.03 | 53.89 | 64.26 | 65.27 | 76.61 | 85.03 | 96.35 | 94.45 | 82.70 | 74.55 | 59.40 | 36.52 | 69.26 | |||||||||||||
1968 | 35.29 | 54.31 | 60.48 | 64.43 | 78.65 | ----- | z | 94.19 | 86.32 | 84.53 | 71.61 | 55.30 | c | 39.12 | f | 68.51 | b | |||||||||
1969 | 46.69 | e | 47.46 | d | 54.12 | e | 72.15 | d | 83.22 | d | 88.08 | e | 96.58 | e | 96.26 | 86.77 | 63.42 | 53.00 | b | 46.13 | a | 69.49 | ||||
1970 | 44.48 | 54.75 | 57.06 | 63.47 | 81.71 | 89.07 | 94.97 | 95.37 | a | 83.13 | 66.74 | 56.37 | 44.00 | 69.26 | ||||||||||||
1971 | 44.39 | 51.71 | 59.42 | 67.60 | 75.23 | 90.90 | 99.33 | a | 92.63 | a | 83.60 | 66.42 | 50.83 | 39.77 | 68.49 | |||||||||||
1972 | 45.48 | 54.90 | 68.87 | 71.30 | 81.10 | 89.10 | 97.84 | 92.39 | 83.37 | 64.65 | 48.83 | 38.23 | 69.67 | |||||||||||||
1973 | 32.77 | 46.00 | 52.68 | 64.43 | 78.48 | 88.07 | 95.87 | 93.23 | 83.47 | 72.29 | 56.00 | 47.03 | 67.53 | |||||||||||||
1974 | 37.57 | a | 45.89 | 63.97 | 66.53 | 82.97 | 95.80 | 93.87 | 93.74 | 85.43 | 69.58 | 53.59 | a | 44.13 | a | 69.42 | ||||||||||
1975 | 41.68 | 46.57 | 55.90 | 61.73 | ----- | z | ----- | z | 95.03 | 93.26 | 83.87 | 70.37 | a | 54.83 | 45.29 | 64.85 | b | |||||||||
1976 | 44.87 | a | 54.14 | 57.32 | 68.40 | 81.06 | 91.83 | 97.19 | 93.48 | 81.82 | b | 69.13 | 57.70 | 44.97 | 70.16 | |||||||||||
1977 | 42.61 | 54.61 | 56.65 | 72.67 | 75.10 | 94.07 | 94.97 | 93.48 | b | 85.70 | 73.81 | 58.17 | 51.84 | 71.14 | ||||||||||||
1978 | 44.55 | 49.21 | 60.90 | 68.07 | 76.48 | 92.63 | 97.10 | 94.77 | 84.07 | a | 76.29 | 53.60 | 35.43 | c | 69.43 | |||||||||||
1979 | 35.13 | 39.96 | 56.39 | 69.33 | 78.21 | b | 88.07 | 97.53 | a | 91.81 | 90.00 | 75.32 | c | 51.30 | 44.74 | 68.15 | ||||||||||
1980 | 44.42 | 52.07 | 55.42 | 67.27 | 73.26 | 90.70 | 96.84 | 94.35 | 84.23 | 70.55 | 57.90 | 53.61 | 70.05 | |||||||||||||
1981 | 51.13 | 53.71 | 58.59 | b | 73.47 | 77.48 | 93.83 | 95.68 | 92.16 | 85.60 | 67.68 | 57.13 | 47.74 | 71.18 | ||||||||||||
1982 | 45.58 | 45.68 | 58.26 | 67.71 | b | 77.66 | b | 88.73 | 94.71 | 89.68 | 83.67 | 65.45 | 52.30 | 44.42 | 67.82 | |||||||||||
1983 | 45.16 | 52.29 | 57.70 | a | 61.83 | 76.84 | 88.23 | 92.58 | 91.32 | 86.77 | 71.03 | 56.97 | ----- | z | 70.97 | a | ||||||||||
1984 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1985 | ----- | z | 48.25 | 58.90 | a | 75.25 | b | 81.77 | 95.47 | 97.13 | 97.13 | 80.40 | 70.29 | 53.66 | a | 46.58 | 73.17 | a | ||||||||
1986 | 50.13 | 55.14 | 65.03 | 70.48 | c | 81.03 | a | 93.03 | 93.70 | a | 93.48 | 79.40 | 65.68 | 55.64 | b | 45.16 | 70.66 | |||||||||
1987 | 41.74 | 48.82 | 55.97 | a | 72.97 | a | 78.60 | a | 93.43 | 92.87 | 90.81 | 85.50 | 74.75 | c | 53.63 | 42.80 | a | 69.32 | ||||||||
1988 | 42.16 | 51.41 | 58.97 | a | 69.03 | 80.76 | b | 91.63 | 98.26 | 91.81 | 84.17 | a | 77.42 | 56.61 | b | 43.87 | 70.51 | |||||||||
1989 | 36.73 | a | 47.52 | a | 67.77 | a | 77.63 | 81.70 | a | 91.59 | a | 98.29 | 90.90 | 85.80 | 71.74 | 58.31 | a | 47.71 | 71.31 | |||||||
1990 | 44.29 | 51.48 | a | 63.25 | c | 71.77 | d | 78.52 | b | 96.17 | a | 94.48 | 91.06 | 85.00 | 70.32 | 53.57 | 37.73 | a | 69.80 | |||||||
1991 | 38.00 | 52.42 | d | 56.27 | a | 66.93 | 75.81 | 89.67 | 95.70 | d | 92.03 | ----- | z | 77.14 | b | 52.59 | a | 38.94 | 66.86 | a | ||||||
1992 | 37.37 | a | 50.43 | a | 59.26 | 76.93 | 79.81 | 89.10 | 92.50 | g | 92.17 | b | 83.87 | 73.68 | 50.59 | a | 36.23 | a | 66.31 | a | ||||||
1993 | 43.03 | a | 48.96 | 62.42 | 70.73 | 81.27 | a | 89.45 | a | 95.58 | 90.97 | a | 86.73 | 69.17 | a | 51.31 | a | 43.58 | 69.43 | |||||||
1994 | 46.87 | a | 47.61 | 65.26 | 70.93 | 80.87 | a | 96.17 | 98.23 | 96.52 | 85.77 | 68.81 | 50.88 | d | 43.60 | a | 70.96 | |||||||||
1995 | 44.35 | 59.63 | a | 60.55 | b | 66.93 | a | 74.23 | a | 85.15 | c | 94.63 | a | 94.94 | 85.90 | a | 72.74 | 60.55 | a | 48.48 | 70.67 | |||||
1996 | 47.77 | a | 55.00 | b | 61.83 | a | 71.43 | 85.73 | a | 94.57 | 98.74 | 95.52 | 83.35 | d | 67.90 | b | 53.53 | 45.50 | a | 71.74 | ||||||
1997 | 45.28 | b | 49.04 | 65.58 | 65.46 | b | 83.68 | 89.87 | 94.19 | 91.53 | a | 81.63 | 68.32 | 55.43 | 43.06 | 69.42 | ||||||||||
1998 | 48.03 | a | 48.33 | a | 59.61 | c | 64.10 | a | 78.13 | a | 87.90 | a | 97.42 | 94.17 | a | 82.75 | b | 67.57 | a | 54.47 | 45.25 | c | 68.98 | |||
1999 | 50.81 | 55.00 | 65.23 | 65.82 | b | 78.94 | 90.69 | a | 92.84 | 89.84 | 82.90 | a | 75.61 | 60.00 | 46.42 | 71.17 | ||||||||||
2000 | 49.74 | 53.14 | 58.80 | a | 76.43 | 86.70 | a | 93.07 | 97.97 | 94.48 | 87.61 | b | 68.71 | 47.83 | 46.48 | 71.75 | ||||||||||
2001 | 42.26 | 49.19 | a | 61.32 | 68.93 | 85.07 | a | 93.55 | a | 93.55 | 92.52 | 88.07 | 74.71 | 58.00 | 42.74 | 70.83 | ||||||||||
2002 | 44.06 | 50.89 | 59.66 | b | 76.10 | 82.27 | a | 96.33 | 98.97 | 95.45 | 83.10 | a | 67.70 | a | 54.07 | a | 43.61 | 71.02 | ||||||||
2003 | 50.77 | 49.30 | a | 61.03 | 68.68 | b | 82.61 | 92.60 | 101.19 | 94.48 | 87.10 | 76.43 | a | 51.53 | 45.10 | a | 71.74 | |||||||||
2004 | 42.79 | b | 45.86 | 68.42 | 69.41 | a | 83.32 | 91.90 | 96.55 | 91.71 | 82.27 | 67.79 | b | 50.73 | 44.03 | 69.57 | ||||||||||
2005 | 48.67 | a | 49.93 | 59.10 | a | 68.69 | a | 80.52 | 87.83 | 99.39 | 88.97 | 84.90 | 70.60 | a | 56.53 | 45.71 | 70.07 | |||||||||
2006 | 46.77 | 53.30 | a | 56.00 | 71.97 | a | 84.68 | 95.17 | 96.94 | 91.74 | 80.50 | 66.06 | 56.28 | a | 43.52 | 70.24 | ||||||||||
2007 | 42.23 | a | 53.41 | a | 64.33 | a | 71.10 | 81.90 | a | 94.55 | a | 98.29 | 94.45 | 85.50 | 69.63 | a | 58.70 | 41.87 | 71.33 | |||||||
2008 | 41.23 | a | 50.00 | 61.26 | 69.67 | 77.57 | c | 91.80 | 96.84 | 94.40 | a | 85.33 | 72.21 | b | 58.24 | a | 42.32 | 70.07 | ||||||||
2009 | 46.73 | a | 52.71 | 62.19 | 69.61 | b | 84.23 | a | 85.00 | 97.45 | 94.42 | 85.83 | 69.17 | b | 56.53 | 39.19 | 70.26 | |||||||||
2010 | 40.45 | 47.00 | 57.19 | 70.26 | c | 76.55 | 92.00 | a | 96.35 | 89.77 | 87.57 | 68.52 | 53.13 | 49.76 | b | 69.05 | ||||||||||
2011 | 43.74 | 48.27 | b | 61.94 | 69.04 | b | 75.03 | b | 91.47 | 94.52 | 95.65 | 84.73 | 72.00 | 54.77 | 42.55 | 69.47 | ||||||||||
2012 | 47.35 | 50.45 | 62.39 | 72.93 | 86.10 | 95.47 | m | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 63.84 | g | |||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 43.59 | 50.72 | 60.04 | 69.58 | 80.23 | 91.29 | 96.56 | 93.27 | 84.68 | 71.05 | 55.02 | 44.13 | 70.13 | |||||||||||||
S.D. | 4.35 | 3.67 | 3.88 | 3.79 | 3.44 | 3.23 | 2.08 | 2.28 | 2.28 | 3.66 | 3.10 | 3.90 | 1.12 | |||||||||||||
SKEW | -0.50 | -0.35 | 0.33 | 0.11 | -0.03 | -0.32 | -0.02 | -0.42 | 0.01 | 0.16 | -0.19 | -0.17 | -0.08 | |||||||||||||
MAX | 51.13 | 59.63 | 68.87 | 77.63 | 86.70 | 96.33 | 101.19 | 97.29 | 90.00 | 78.71 | 60.55 | 53.61 | 72.60 | |||||||||||||
MIN | 32.77 | 39.96 | 52.68 | 61.73 | 73.26 | 83.77 | 92.58 | 86.32 | 79.40 | 63.42 | 47.83 | 35.43 | 67.53 | |||||||||||||
YRS | 53 | 54 | 54 | 54 | 53 | 51 | 52 | 53 | 52 | 53 | 54 | 52 | 47 |