| YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
| 1942 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1943 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1944 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1945 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1946 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1947 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1948 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1949 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1950 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1951 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1952 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1953 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1954 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1955 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1956 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1957 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1958 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1959 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1960 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1961 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1962 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1963 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1964 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1965 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 91.50 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 91.50 | ||
| 1966 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1967 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 68.60 | 52.45 | 60.53 | |||
| 1968 | 56.15 | 65.43 | 65.63 | 68.08 | 77.35 | 85.33 | 89.87 | 86.52 | 85.63 | 75.56 | 66.30 | 52.74 | 72.88 | |||||||||||||
| 1969 | 58.69 | 55.96 | 63.03 | 69.25 | 78.52 | 80.78 | 90.39 | 94.85 | 87.43 | 71.56 | 63.93 | 57.29 | 72.64 | |||||||||||||
| 1970 | 55.65 | 61.54 | 63.66 | 65.03 | 78.53 | 85.48 | 92.31 | 92.34 | 83.48 | 71.92 | 64.18 | 53.48 | 72.30 | |||||||||||||
| 1971 | 55.42 | 59.50 | 64.61 | 66.87 | 71.58 | 82.57 | 92.37 | 90.71 | 85.38 | 68.74 | 62.35 | 51.85 | 71.00 | |||||||||||||
| 1972 | 54.15 | 63.95 | 72.85 | 67.83 | 76.92 | 85.38 | 93.24 | 88.06 | 82.47 | 70.98 | 59.73 | 54.24 | 72.48 | |||||||||||||
| 1973 | 52.97 | 58.09 | 58.29 | 69.30 | 79.48 | 87.95 | 90.56 | 88.74 | 82.02 | 75.19 | 63.18 | 58.24 | 72.00 | |||||||||||||
| 1974 | 53.97 | 57.66 | 63.95 | 69.45 | 76.85 | 89.70 | 90.61 | 90.44 | 87.93 | 75.40 | 64.10 | 54.45 | 72.88 | |||||||||||||
| 1975 | 56.74 | 57.16 | 61.13 | 61.38 | 76.15 | 84.57 | 91.08 | 90.58 | 87.05 | 73.32 | 64.30 | 57.77 | 71.77 | |||||||||||||
| 1976 | 57.92 | 60.62 | 62.03 | 65.72 | 77.93 | b | 85.50 | 90.82 | 87.08 | 81.22 | 74.52 | 65.65 | 57.23 | 72.19 | ||||||||||||
| 1977 | 55.39 | 63.84 | 59.74 | 71.62 | 69.34 | 87.74 | a | 92.68 | 90.29 | 83.23 | 77.26 | 66.75 | 60.73 | 73.22 | ||||||||||||
| 1978 | 55.77 | 58.14 | 63.35 | 64.32 | 76.24 | 87.55 | 92.23 | 89.76 | 83.12 | 80.06 | 61.52 | 52.47 | 72.04 | |||||||||||||
| 1979 | 50.71 | 56.16 | 61.32 | 69.32 | 75.48 | 86.28 | 90.37 | 86.61 | 89.73 | 77.26 | 61.83 | 59.87 | 72.08 | |||||||||||||
| 1980 | 59.44 | 61.05 | a | 59.74 | 68.28 | 69.65 | 82.52 | 92.94 | 89.48 | 85.38 | 76.95 | 65.78 | 62.89 | 72.84 | ||||||||||||
| 1981 | 60.95 | 61.73 | 61.31 | 71.95 | 76.42 | 90.93 | 92.61 | 93.52 | 86.55 | 71.52 | 66.43 | 60.55 | 74.54 | |||||||||||||
| 1982 | 53.90 | 61.23 | 60.94 | 68.43 | 74.82 | 80.62 | 88.97 | 90.71 | 82.48 | 73.50 | 60.62 | 54.34 | 70.88 | |||||||||||||
| 1983 | 57.48 | 58.02 | 60.97 | 62.60 | 75.37 | 81.20 | 89.29 | 86.32 | 83.20 | 73.89 | 62.68 | 57.27 | 70.69 | |||||||||||||
| 1984 | 58.87 | 60.02 | 65.94 | 68.08 | 82.60 | 83.63 | 90.06 | 89.39 | 87.42 | 70.48 | 60.73 | 52.77 | 72.50 | |||||||||||||
| 1985 | 53.35 | 55.68 | 60.87 | 73.10 | 77.45 | 87.48 | 92.15 | 90.37 | 78.08 | 73.84 | 60.67 | 57.08 | 71.68 | |||||||||||||
| 1986 | 61.37 | 60.64 | 66.90 | 68.63 | 77.31 | 87.92 | 87.55 | 92.50 | 78.72 | 71.92 | 64.67 | 56.53 | 72.89 | |||||||||||||
| 1987 | 53.66 | 58.98 | 61.63 | 75.12 | 78.27 | 88.02 | 88.21 | 90.48 | 86.57 | 78.97 | 62.43 | a | 51.90 | 72.85 | ||||||||||||
| 1988 | 55.34 | 62.29 | 66.27 | 69.75 | 77.06 | 84.93 | 93.05 | 90.97 | 85.73 | 82.21 | 65.62 | 57.50 | 74.23 | |||||||||||||
| 1989 | 54.27 | 58.71 | 70.06 | 77.70 | 78.81 | 87.05 | 94.27 | 89.40 | 87.12 | 76.05 | 68.05 | 59.10 | 75.05 | |||||||||||||
| 1990 | 56.53 | 58.00 | 67.90 | 73.15 | 75.45 | 89.25 | 94.06 | 90.06 | 87.15 | 78.52 | 66.58 | 53.69 | 74.20 | |||||||||||||
| 1991 | 57.39 | 66.64 | 59.19 | 68.57 | 74.11 | 81.75 | 91.05 | 90.37 | 87.18 | 80.56 | 66.35 | 56.77 | 73.33 | |||||||||||||
| 1992 | 56.48 | 62.21 | 61.79 | 74.53 | 80.74 | 84.07 | 88.82 | 91.18 | 86.98 | 76.21 | 61.42 | 51.42 | 72.99 | |||||||||||||
| 1993 | 53.23 | 55.98 | 65.27 | 71.80 | 76.52 | 83.30 | 85.71 | 87.90 | 84.88 | 75.50 | 61.80 | 55.90 | 71.48 | |||||||||||||
| 1994 | 58.81 | 55.21 | 65.35 | 69.30 | 74.32 | 89.12 | 91.69 | 92.61 | 86.22 | 73.19 | 56.33 | 55.26 | 72.29 | |||||||||||||
| 1995 | 55.16 | 63.75 | 63.29 | 68.05 | 71.29 | 83.82 | 91.39 | 94.34 | 88.92 | 77.53 | 69.77 | 59.84 | 73.93 | |||||||||||||
| 1996 | 59.42 | 63.03 | 65.74 | 74.10 | 80.19 | 87.12 | 93.94 | 93.02 | 84.28 | 75.06 | 65.41 | a | 57.97 | 74.94 | ||||||||||||
| 1997 | 58.05 | 60.09 | 69.21 | 70.30 | 84.45 | 83.15 | 89.32 | 92.81 | 87.20 | 73.08 | 65.22 | 53.82 | 73.89 | |||||||||||||
| 1998 | 56.66 | 55.80 | 61.21 | 64.60 | 69.68 | 79.33 | 92.79 | 94.13 | 83.52 | 73.26 | 63.57 | 55.85 | 70.87 | |||||||||||||
| 1999 | 58.87 | 59.20 | 61.55 | 64.17 | 74.76 | 83.08 | 89.74 | 89.73 | 85.83 | 79.68 | 67.30 | 58.35 | 72.69 | |||||||||||||
| 2000 | 60.53 | 60.02 | 62.97 | 73.72 | 81.53 | 88.05 | 91.16 | 91.31 | 85.03 | 72.44 | 59.13 | 59.74 | 73.80 | |||||||||||||
| 2001 | 54.45 | 55.98 | 64.55 | 66.52 | 83.82 | 88.58 | 90.45 | 92.84 | 89.10 | 79.03 | b | 67.63 | 55.15 | 74.01 | ||||||||||||
| 2002 | 56.35 | 60.62 | 63.06 | 71.52 | 77.58 | 88.43 | 93.76 | 91.15 | 88.23 | 73.18 | 66.30 | 56.27 | 73.87 | |||||||||||||
| 2003 | 64.60 | 58.18 | 65.60 | 64.90 | 78.45 | 86.90 | 95.21 | 91.66 | 89.22 | 82.32 | 60.88 | 56.42 | 74.53 | |||||||||||||
| 2004 | 57.23 | 55.83 | 71.69 | 72.12 | 78.89 | 85.53 | 92.23 | 90.76 | 85.50 | 72.26 | 62.79 | m | 55.58 | 74.33 | ||||||||||||
| 2005 | 56.45 | 56.20 | 62.24 | 67.02 | 78.11 | 82.77 | 93.52 | 90.79 | 83.82 | 75.87 | e | 65.33 | 58.71 | 72.57 | ||||||||||||
| 2006 | 57.92 | 61.02 | ----- | z | 66.22 | 80.06 | 90.55 | 95.97 | 90.81 | 85.10 | 73.10 | 67.45 | 55.55 | 74.89 | ||||||||||||
| 2007 | 53.35 | 60.23 | 68.63 | 71.52 | 79.26 | 86.43 | 92.48 | 93.26 | 84.42 | 74.73 | 67.90 | 52.34 | 73.71 | |||||||||||||
| 2008 | 53.55 | 59.14 | 66.16 | 70.70 | 74.81 | 89.42 | 92.50 | 91.61 | 88.40 | 77.95 | 68.34 | h | 55.53 | 74.52 | ||||||||||||
| 2009 | 59.81 | 57.59 | 63.24 | 68.48 | 83.63 | 81.45 | 94.87 | 91.02 | 88.58 | 72.68 | 66.12 | 54.68 | 73.51 | |||||||||||||
| 2010 | 56.84 | 58.93 | 61.87 | 65.45 | 72.31 | 84.13 | 92.58 | 90.39 | 86.47 | 73.58 | 62.12 | 59.40 | 72.01 | |||||||||||||
| 2011 | 56.28 | a | 54.26 | a | 63.26 | 69.39 | b | 70.81 | 82.32 | 91.39 | 93.48 | 88.24 | a | 77.21 | 60.95 | 53.64 | x | 73.42 | ||||||||
| 2012 | 60.16 | 59.95 | 65.48 | 72.30 | 81.60 | 87.57 | 91.94 | 93.44 | 88.73 | 76.66 | 67.32 | 57.53 | 75.22 | |||||||||||||
| 2013 | 53.45 | 58.34 | 71.31 | 70.50 | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 48.00 | z | 61.03 | ||||
| Period of Record Statistics | ||||||||||||||||||||||||||
| MEAN | 56.60 | 59.40 | 64.11 | 69.12 | 76.99 | 85.54 | 91.60 | 90.84 | 85.62 | 75.22 | 64.20 | 56.19 | 72.91 | |||||||||||||
| S.D. | 2.72 | 2.85 | 3.41 | 3.49 | 3.72 | 2.94 | 2.05 | 2.08 | 2.66 | 3.13 | 2.94 | 2.75 | 1.18 | |||||||||||||
| SKEW | 0.45 | 0.41 | 0.74 | 0.07 | -0.19 | -0.14 | -0.36 | -0.30 | -0.80 | 0.38 | -0.39 | 0.16 | 0.04 | |||||||||||||
| MAX | 64.60 | 66.64 | 72.85 | 77.70 | 84.45 | 90.93 | 95.97 | 94.85 | 89.73 | 82.32 | 69.77 | 62.89 | 75.22 | |||||||||||||
| MIN | 50.71 | 54.26 | 58.29 | 61.38 | 69.34 | 79.33 | 85.71 | 86.32 | 78.08 | 68.74 | 56.33 | 51.42 | 70.69 | |||||||||||||
| NO YRS | 46 | 46 | 45 | 45 | 45 | 45 | 46 | 45 | 45 | 45 | 44 | 45 | 41 | |||||||||||||