YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1943 | ----- | z | ----- | z | 76.52 | 87.53 | 94.06 | 98.23 | 97.74 | 98.19 | 87.87 | 79.23 | 68.37 | 55.90 | a | 84.36 | b | |||||||||
1944 | 56.26 | 64.69 | 69.35 | 79.90 | 86.61 | 95.33 | 96.10 | 93.42 | 86.33 | 79.83 | a | 66.90 | 60.54 | c | 77.94 | |||||||||||
1945 | 59.35 | 66.89 | 69.77 | 78.07 | 88.90 | 95.30 | 93.68 | 90.68 | 87.90 | 76.17 | a | 69.17 | 60.23 | a | 78.01 | |||||||||||
1946 | 53.87 | 64.46 | 71.42 | 80.37 | 78.71 | 98.17 | 95.06 | 95.94 | 90.33 | 80.90 | 66.53 | 61.61 | 78.12 | |||||||||||||
1947 | 52.94 | 66.00 | 70.81 | 78.87 | 91.19 | 96.17 | 99.45 | 94.45 | 93.05 | k | 83.29 | 63.31 | a | 56.23 | 77.52 | a | ||||||||||
1948 | 57.61 | 62.93 | b | 67.50 | e | 83.30 | 90.74 | 96.70 | 97.58 | 95.97 | 89.90 | 78.52 | 63.40 | 60.71 | 78.74 | |||||||||||
1949 | 49.81 | 66.00 | 72.77 | 77.80 | 88.74 | 96.23 | 96.06 | 93.83 | a | 88.60 | 76.61 | 73.13 | 56.48 | 78.01 | ||||||||||||
1950 | 62.55 | 68.36 | 73.94 | 81.67 | 87.19 | 98.63 | 92.58 | 94.58 | 88.66 | a | 86.65 | 72.70 | 67.84 | 81.28 | ||||||||||||
1951 | 60.67 | a | 63.29 | 69.77 | 76.43 | 89.39 | 97.27 | 100.23 | 95.58 | 93.63 | 81.87 | 66.70 | 60.58 | 79.62 | ||||||||||||
1952 | 64.26 | 63.21 | 66.52 | 77.76 | a | 89.00 | 97.83 | 97.16 | 98.10 | 92.00 | a | 84.68 | 64.20 | 58.35 | 79.42 | |||||||||||
1953 | 65.42 | 63.50 | 71.58 | 76.41 | a | 84.58 | 99.80 | 97.61 | 95.94 | 93.43 | 80.32 | 69.03 | 55.00 | 79.39 | ||||||||||||
1954 | 62.42 | 69.68 | 70.48 | 84.73 | 88.71 | 96.47 | 97.74 | 93.16 | 91.97 | 83.10 | 71.53 | 62.74 | 81.06 | |||||||||||||
1955 | 55.10 | 62.39 | 71.26 | 79.80 | 85.97 | 95.63 | 92.26 | 92.61 | 92.30 | 81.58 | 68.73 | 64.84 | 78.54 | |||||||||||||
1956 | 62.16 | 60.24 | 74.77 | 77.60 | 92.65 | 100.30 | 96.55 | 93.52 | 93.67 | 83.58 | 65.07 | 57.81 | 79.83 | |||||||||||||
1957 | 62.42 | 71.43 | 69.71 | 78.60 | 84.10 | 97.17 | 99.26 | 94.16 | 87.30 | 73.94 | 61.50 | 60.42 | 78.33 | |||||||||||||
1958 | 56.23 | 65.61 | 62.87 | 77.83 | 91.45 | 99.60 | o | 100.50 | a | 97.00 | 84.77 | 72.06 | 66.27 | 64.61 | 76.29 | a | ||||||||||
1959 | 63.11 | c | 63.36 | 71.26 | 80.97 | 89.10 | 98.40 | 97.36 | c | 95.33 | j | 92.52 | a | 80.00 | 66.85 | c | 59.13 | 78.37 | a | |||||||
1960 | 54.94 | 60.34 | 72.71 | 78.74 | c | 88.38 | g | 99.76 | a | ----- | z | 89.26 | h | 87.14 | a | 77.04 | g | 66.43 | 50.29 | 71.29 | d | |||||
1961 | 53.79 | c | 62.59 | f | 67.43 | a | 75.37 | 86.38 | e | 93.63 | 93.32 | 91.48 | 83.40 | 76.61 | 57.63 | 56.00 | 75.91 | a | ||||||||
1962 | 51.48 | 64.82 | 60.81 | d | 79.00 | d | 87.27 | a | 92.03 | 90.47 | a | 95.45 | 85.57 | 78.71 | 68.40 | 58.32 | 76.03 | |||||||||
1963 | 52.45 | 62.50 | 69.29 | 77.30 | 86.81 | 91.43 | ----- | z | 89.13 | 87.90 | 80.74 | ----- | z | 58.90 | 75.65 | b | ||||||||||
1964 | 52.81 | 54.90 | 62.60 | a | 74.43 | ----- | z | 92.47 | 95.32 | 92.94 | ----- | z | 78.90 | a | 66.30 | 54.39 | 72.50 | b | ||||||||
1965 | 58.77 | 57.46 | 64.26 | 77.20 | 84.90 | 90.07 | 94.97 | 94.32 | 86.83 | 81.74 | 74.10 | 59.94 | 77.05 | |||||||||||||
1966 | 53.61 | 57.36 | 72.03 | 79.23 | 88.23 | a | 93.55 | a | 98.77 | 91.81 | 87.40 | 78.47 | a | 72.40 | 60.45 | 77.78 | ||||||||||
1967 | 61.35 | 64.50 | 77.20 | a | 80.67 | 85.58 | 92.27 | 96.57 | a | 92.77 | 87.27 | 82.58 | 69.50 | 54.48 | 78.73 | |||||||||||
1968 | 55.10 | 65.76 | 65.16 | 74.97 | 87.84 | 95.63 | 91.42 | 90.00 | 88.43 | 84.19 | 66.70 | 55.65 | 76.74 | |||||||||||||
1969 | 63.94 | 63.82 | 65.74 | 82.57 | 90.39 | 97.13 | 98.59 | b | 98.84 | 91.59 | h | 81.77 | a | 65.83 | a | 61.23 | 79.08 | a | ||||||||
1970 | 61.03 | 65.93 | 67.97 | a | 78.67 | 90.32 | 96.10 | 97.50 | a | 97.57 | a | 89.43 | 77.68 | 71.20 | 64.71 | 79.84 | ||||||||||
1971 | 64.06 | 66.11 | 76.16 | 78.90 | 87.61 | 97.27 | 98.87 | 92.55 | 91.20 | 78.19 | 69.76 | a | 61.00 | b | 80.14 | |||||||||||
1972 | 63.71 | 69.00 | 81.16 | 84.00 | 88.48 | 96.57 | 99.37 | a | 93.32 | 88.37 | 83.61 | 67.73 | 61.29 | 81.38 | ||||||||||||
1973 | ----- | z | 60.25 | 70.35 | 76.40 | 87.74 | ----- | z | 96.50 | a | ----- | z | 92.47 | 83.10 | 71.90 | 61.71 | 77.82 | c | ||||||||
1974 | 62.17 | a | 65.36 | 76.74 | 80.90 | 91.10 | 98.27 | 92.80 | a | 90.39 | c | 83.90 | 76.65 | 64.27 | 54.32 | 78.07 | ||||||||||
1975 | 57.52 | 63.54 | 72.55 | 75.80 | 84.45 | 95.33 | 92.16 | 94.19 | 85.63 | 80.13 | 68.23 | 59.94 | 77.46 | |||||||||||||
1976 | 59.00 | 68.48 | 71.87 | 78.63 | 85.10 | 95.41 | a | 92.48 | 94.61 | 85.87 | 73.55 | 60.20 | 56.42 | 76.80 | ||||||||||||
1977 | 56.87 | a | 65.89 | 68.29 | 79.83 | 87.48 | 97.63 | 96.97 | 97.52 | 93.23 | 79.00 | 71.23 | 64.45 | 79.87 | ||||||||||||
1978 | 59.29 | 63.18 | 73.42 | 81.57 | 87.65 | 99.77 | 100.77 | 94.52 | 83.80 | 80.26 | 66.07 | 56.52 | 78.90 | |||||||||||||
1979 | 54.32 | 63.64 | 69.84 | 80.41 | a | 86.87 | 95.63 | 99.60 | a | 92.17 | a | 90.53 | 84.90 | 64.40 | 59.94 | 78.52 | ||||||||||
1980 | 61.84 | 65.76 | 70.37 | a | 79.27 | 86.80 | a | 102.71 | b | 101.76 | b | 95.48 | ----- | z | 75.93 | a | 67.00 | a | ----- | z | 80.69 | b | ||||
1981 | 58.60 | a | 68.39 | 69.77 | 81.00 | d | 89.70 | k | 101.90 | 100.57 | a | 95.35 | 93.10 | 84.15 | e | 72.54 | d | 64.00 | 80.85 | a | ||||||
1982 | 60.13 | a | 64.11 | a | ----- | z | 79.79 | b | 85.61 | 97.00 | 98.23 | ----- | z | 89.77 | 79.68 | 63.80 | 54.17 | b | 77.23 | b | ||||||
1983 | 54.60 | a | 63.41 | a | 67.94 | 71.18 | b | 86.16 | 96.43 | 98.19 | 95.90 | 92.52 | a | 79.30 | a | ----- | z | 59.63 | a | 78.66 | a | |||||
1984 | 57.55 | 65.93 | 73.68 | 80.17 | 91.03 | b | 93.00 | 96.06 | ----- | z | 91.72 | a | 76.45 | 69.70 | 58.77 | a | 77.64 | a | ||||||||
1985 | 58.58 | 64.07 | a | 73.13 | 83.40 | 89.27 | a | ----- | z | 102.35 | 98.68 | 89.30 | 80.53 | a | 71.43 | 62.65 | 79.40 | a | ||||||||
1986 | ----- | z | 69.64 | 74.61 | 88.67 | 90.74 | 93.60 | 94.61 | 97.24 | b | 92.31 | a | 81.87 | 63.23 | 57.68 | 82.20 | a | |||||||||
1987 | 55.84 | 65.07 | 67.35 | 75.77 | 85.03 | 93.37 | 97.33 | a | 92.94 | 86.07 | 82.26 | 67.20 | 55.94 | 77.01 | ||||||||||||
1988 | 56.42 | 64.50 | a | 71.94 | 77.57 | 87.42 | 93.73 | 96.55 | 90.52 | 88.50 | 82.19 | 71.20 | 55.84 | 78.03 | ||||||||||||
1989 | 58.87 | 66.04 | 75.19 | 85.47 | 91.35 | 97.20 | 95.39 | 91.19 | 87.27 | 81.00 | 70.21 | a | 56.55 | 79.64 | ||||||||||||
1990 | 58.42 | 62.29 | 71.62 | b | 81.93 | 88.83 | a | 101.07 | 91.96 | d | 88.90 | 85.29 | b | 78.30 | a | 66.37 | 56.61 | 77.63 | ||||||||
1991 | 55.81 | 64.57 | 68.41 | b | 80.38 | a | 89.81 | 95.14 | b | 91.07 | a | 91.10 | b | 83.41 | a | 82.63 | a | 67.50 | b | 56.68 | c | 77.21 | ||||
1992 | 51.71 | 62.22 | b | 70.83 | a | 83.76 | a | 84.17 | b | 95.76 | a | 97.93 | b | 93.21 | c | 91.57 | b | 82.52 | b | 62.38 | a | 55.36 | c | 77.62 | ||
1993 | 58.42 | 62.54 | b | 72.06 | 81.64 | b | 87.87 | 97.22 | c | 96.21 | b | 93.23 | a | 89.23 | 78.52 | 65.82 | b | 58.73 | a | 78.46 | ||||||
1994 | 60.31 | b | 63.60 | c | 72.42 | e | 80.55 | a | 88.54 | c | 101.36 | b | 98.77 | e | 97.84 | 90.82 | b | 79.93 | c | 67.41 | a | 59.63 | a | 80.10 | ||
1995 | 57.77 | 69.04 | d | ----- | z | 79.85 | c | 87.90 | 95.86 | a | 97.06 | 95.31 | b | 89.50 | f | 83.83 | a | 71.00 | 60.81 | 79.84 | b | |||||
1996 | 63.59 | d | 69.58 | c | 71.69 | e | 80.85 | c | 94.33 | a | 98.75 | b | 96.80 | a | 92.22 | d | 86.90 | a | 80.24 | b | 69.46 | b | 61.23 | 80.47 | ||
1997 | 56.61 | 62.25 | 75.48 | b | 76.47 | 88.93 | a | 95.75 | b | 96.00 | e | 94.48 | 92.36 | b | 79.52 | b | 66.17 | a | 52.71 | 78.06 | ||||||
1998 | 62.20 | a | 60.50 | b | 69.42 | 76.61 | b | 90.68 | 97.04 | b | 96.87 | 94.00 | a | 93.00 | 78.83 | b | 69.63 | 60.28 | b | 79.09 | ||||||
1999 | 64.45 | b | 70.63 | a | 75.19 | 79.07 | a | 88.52 | 94.46 | b | 93.14 | b | 92.80 | a | 89.32 | b | 81.37 | a | 72.80 | 56.23 | a | 79.83 | ||||
2000 | 64.81 | 69.34 | 73.42 | 86.26 | c | 94.13 | 94.83 | 98.13 | 94.81 | 93.47 | 77.45 | b | 60.47 | 58.65 | 80.48 | |||||||||||
2001 | 55.26 | 65.50 | 70.84 | 82.27 | 91.41 | b | 97.80 | 97.55 | b | ----- | z | 91.15 | d | 82.93 | b | 67.55 | a | 57.67 | a | 78.18 | a | |||||
2002 | 60.84 | 62.04 | a | 73.29 | c | 86.28 | a | 90.38 | b | 100.00 | 95.21 | b | 97.62 | b | 90.00 | ----- | z | 65.48 | a | 56.00 | b | 79.74 | a | |||
2003 | ----- | z | ----- | z | 70.97 | ----- | z | 92.32 | ----- | z | ----- | z | 96.17 | s | 92.14 | a | 88.32 | 72.97 | a | 61.04 | f | 83.34 | g | |||
2004 | 59.29 | 61.23 | c | 73.77 | ----- | z | 90.27 | a | ----- | z | 96.43 | a | 93.72 | b | 87.23 | 78.84 | 61.93 | a | 56.42 | 75.91 | b | |||||
2005 | 61.13 | 60.12 | b | 69.16 | 80.00 | a | 89.38 | b | 96.97 | a | 98.70 | a | 92.37 | d | 91.38 | a | 76.30 | a | 69.60 | 61.71 | c | 78.90 | ||||
2006 | 63.27 | e | 67.45 | h | ----- | z | 81.38 | f | 91.05 | i | 95.00 | b | 93.89 | c | 87.50 | a | 81.07 | b | 74.31 | b | 68.41 | a | 55.31 | b | 77.35 | d |
2007 | 52.78 | d | 62.65 | b | 70.76 | b | 77.12 | d | 85.52 | h | 93.65 | g | 91.60 | f | 93.04 | d | 88.75 | j | 81.78 | h | 70.70 | g | 58.31 | e | 69.11 | f |
2008 | 56.88 | g | 65.76 | h | 71.33 | g | 78.89 | k | 86.76 | j | 96.73 | h | 89.00 | g | 88.43 | h | 83.39 | g | 78.64 | f | 67.29 | f | 60.60 | f | ----- | z |
2009 | 62.72 | f | 67.48 | g | 73.00 | l | 77.64 | h | 87.12 | g | 90.88 | e | 95.97 | b | 93.07 | c | 85.21 | a | 75.78 | d | 68.22 | c | 53.57 | c | 80.39 | e |
2010 | 52.61 | 58.36 | f | 66.52 | h | 76.90 | i | 91.33 | j | 95.24 | e | 90.48 | h | 93.35 | e | 88.43 | i | 79.43 | h | 65.32 | e | 62.45 | 73.79 | g | ||
2011 | 57.00 | f | ----- | z | 75.88 | e | 82.14 | i | 86.54 | g | 98.08 | d | 95.64 | c | 96.07 | c | ----- | z | 80.00 | e | 64.15 | c | 50.59 | d | 80.06 | e |
2012 | 60.61 | c | 63.16 | d | 72.48 | ----- | z | ----- | z | 99.66 | a | ----- | z | 94.75 | g | 87.43 | i | ----- | z | ----- | z | ----- | z | 73.98 | h | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 58.46 | 64.40 | 71.06 | 79.80 | 88.44 | 96.47 | 96.54 | 93.98 | 89.06 | 80.10 | 67.46 | 58.59 | 78.73 | |||||||||||||
S.D. | 3.98 | 3.26 | 3.69 | 3.29 | 2.80 | 2.68 | 2.70 | 2.51 | 3.12 | 3.19 | 3.52 | 3.49 | 1.31 | |||||||||||||
SKEW | -0.15 | -0.21 | -0.30 | 0.41 | -0.41 | -0.05 | -0.27 | -0.13 | -0.35 | -0.11 | -0.33 | 0.08 | 0.16 | |||||||||||||
MAX | 65.42 | 71.43 | 81.16 | 88.67 | 94.33 | 102.71 | 102.35 | 98.84 | 93.67 | 88.32 | 74.10 | 67.84 | 81.38 | |||||||||||||
MIN | 49.81 | 54.90 | 60.81 | 71.18 | 78.71 | 90.07 | 90.47 | 87.50 | 81.07 | 72.06 | 57.63 | 50.29 | 76.03 | |||||||||||||
YRS | 63 | 62 | 64 | 62 | 60 | 63 | 63 | 61 | 60 | 64 | 65 | 66 | 41 |