| YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
| 1961 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 41.42 | s | 9999.00 | |
| 1962 | 39.52 | 43.75 | 48.13 | 67.23 | 63.94 | 78.77 | 86.81 | 83.29 | 82.27 | 64.71 | 50.57 | 44.00 | 62.75 | |||||||||||||
| 1963 | 39.77 | 52.61 | 52.39 | 54.07 | 71.39 | 74.90 | 81.97 | 85.42 | 83.07 | 67.58 | 49.57 | 40.29 | 62.75 | |||||||||||||
| 1964 | 38.65 | 45.10 | 47.58 | 58.67 | 68.42 | 73.77 | 86.42 | 84.39 | 78.54 | f | 74.28 | b | 46.40 | 39.68 | 60.30 | |||||||||||
| 1965 | 38.74 | 47.61 | 53.32 | 60.80 | 67.00 | 76.13 | 85.45 | 82.74 | 73.03 | 72.90 | a | 50.50 | 38.42 | 62.22 | ||||||||||||
| 1966 | 38.39 | 41.18 | 53.77 | 64.57 | 75.90 | 74.80 | 84.71 | 87.26 | 79.37 | 66.48 | 54.70 | 41.52 | 63.55 | |||||||||||||
| 1967 | 41.26 | 49.18 | 47.71 | 49.43 | 70.74 | 78.34 | a | 90.97 | 93.23 | 86.07 | 65.68 | 51.23 | 38.19 | 63.50 | ||||||||||||
| 1968 | 41.03 | 50.52 | 56.45 | 60.90 | 68.39 | 78.87 | 90.90 | 78.94 | 78.40 | 65.90 | 47.93 | 38.55 | 63.06 | |||||||||||||
| 1969 | 36.16 | 38.75 | 51.35 | 60.53 | 71.65 | 76.47 | 84.87 | 86.97 | 78.00 | 59.48 | 55.67 | 42.13 | 61.84 | |||||||||||||
| 1970 | 40.19 | 51.14 | 50.35 | 52.53 | 70.06 | 78.93 | 89.06 | 90.81 | 74.17 | 64.45 | 49.03 | 36.74 | 62.29 | |||||||||||||
| 1971 | 40.45 | 45.25 | 47.00 | 58.20 | 68.65 | 72.37 | 88.26 | 91.94 | 74.83 | 61.61 | 47.93 | 35.13 | 60.97 | |||||||||||||
| 1972 | 34.68 | 44.69 | 56.87 | 55.87 | 71.90 | 79.53 | 88.81 | 89.42 | 73.97 | 64.68 | 46.33 | 31.74 | 61.54 | |||||||||||||
| 1973 | 37.48 | 46.14 | 50.03 | 59.67 | 71.68 | 80.33 | 90.55 | 87.94 | 79.07 | 64.35 | 43.97 | 41.74 | 62.75 | |||||||||||||
| 1974 | 36.55 | 45.25 | 50.57 | a | 58.27 | 66.10 | 84.23 | 86.26 | 86.06 | 84.50 | 68.90 | 50.33 | 40.35 | 63.11 | ||||||||||||
| 1975 | 38.35 | 42.07 | 47.19 | 51.43 | 68.61 | 75.33 | 87.74 | 81.13 | 83.33 | 60.45 | 47.60 | 41.61 | 60.41 | |||||||||||||
| 1976 | 38.55 | 42.83 | 47.19 | 57.37 | 72.00 | 73.50 | 88.29 | 77.68 | 79.63 | 68.39 | 56.60 | 45.03 | 62.25 | |||||||||||||
| 1977 | 34.97 | 52.89 | 48.94 | 67.70 | 60.03 | 82.17 | 86.35 | 88.10 | 72.50 | 66.16 | 47.63 | 41.26 | 62.39 | |||||||||||||
| 1978 | 42.13 | 46.36 | 58.32 | 55.53 | 63.71 | 76.03 | 85.33 | a | 83.29 | 72.77 | 73.39 | 44.30 | 34.06 | 61.27 | ||||||||||||
| 1979 | 28.06 | 40.25 | 54.19 | 57.70 | 70.29 | 80.57 | 88.48 | 83.65 | 83.07 | 66.58 | 45.73 | 42.97 | 61.80 | |||||||||||||
| 1980 | 38.58 | 46.69 | 49.39 | 62.97 | 66.84 | 71.13 | 87.23 | 82.19 | 78.70 | 68.06 | 49.17 | 45.60 | a | 62.21 | ||||||||||||
| 1981 | 44.32 | 45.71 | 53.65 | 60.17 | 65.97 | 75.90 | 85.39 | 91.52 | 79.33 | 61.74 | 50.30 | 41.26 | 62.94 | |||||||||||||
| 1982 | 33.77 | 41.61 | 48.65 | 56.00 | 68.03 | 76.77 | 82.42 | 86.42 | 73.27 | 61.68 | 44.47 | 37.61 | 59.22 | |||||||||||||
| 1983 | 43.19 | 46.82 | 50.77 | 55.33 | 68.71 | 74.07 | 82.19 | 86.65 | 76.10 | 66.77 | 47.03 | 30.65 | 60.69 | |||||||||||||
| 1984 | 32.65 | 40.72 | 52.00 | 54.90 | 65.90 | 72.33 | 90.26 | 88.06 | 74.23 | 55.87 | 45.13 | 33.52 | 58.80 | |||||||||||||
| 1985 | 29.77 | 38.71 | 47.52 | 64.90 | 70.77 | 80.23 | 91.65 | 83.81 | 69.07 | 64.55 | 37.77 | 30.13 | 59.07 | |||||||||||||
| 1986 | 42.35 | 46.04 | 58.58 | 60.90 | 69.90 | 82.93 | 82.03 | 90.52 | 68.23 | 67.35 | 47.97 | 39.68 | 63.04 | |||||||||||||
| 1987 | 36.35 | 45.57 | 51.65 | 68.67 | 69.97 | 80.63 | 79.90 | 84.74 | 83.13 | 73.84 | 49.72 | a | 39.00 | 63.60 | ||||||||||||
| 1988 | 36.39 | 51.03 | 55.29 | 63.47 | 68.10 | 76.67 | 89.58 | 87.06 | 79.93 | 76.23 | 44.67 | 39.29 | 63.98 | |||||||||||||
| 1989 | 36.19 | 34.46 | 49.45 | 64.23 | 65.42 | 78.83 | 86.71 | 81.90 | 78.53 | 62.90 | 51.66 | a | 46.03 | 61.36 | ||||||||||||
| 1990 | 43.65 | 44.86 | 56.48 | 68.97 | 66.58 | 76.63 | 90.00 | 85.29 | 85.37 | 66.29 | 50.40 | 35.13 | 64.14 | |||||||||||||
| 1991 | 42.71 | 53.89 | 49.74 | 56.43 | 62.35 | 72.30 | 88.26 | 88.61 | 85.33 | 66.00 | 46.50 | 43.06 | 62.93 | |||||||||||||
| 1992 | 41.68 | 52.24 | 59.19 | 63.90 | 79.03 | 81.97 | 82.87 | 88.23 | 79.10 | 68.32 | 45.40 | 36.87 | 64.90 | |||||||||||||
| 1993 | 29.71 | 32.29 | 48.52 | 57.30 | 71.71 | 73.63 | 74.42 | 80.61 | 80.43 | 65.48 | 47.77 | 42.68 | 58.71 | |||||||||||||
| 1994 | 46.19 | 44.21 | 59.00 | 62.63 | 69.77 | 77.67 | 91.32 | 89.32 | 81.73 | 64.81 | 40.38 | a | 41.29 | x | 66.10 | |||||||||||
| 1995 | 43.35 | 54.82 | 51.77 | 58.13 | 66.35 | 73.50 | 83.58 | 84.13 | 81.03 | 63.97 | 53.53 | 41.17 | a | 62.95 | ||||||||||||
| 1996 | 41.10 | 46.59 | 55.06 | 60.67 | 63.32 | 77.83 | 92.23 | 87.90 | 75.00 | 63.90 | 51.80 | 40.94 | 63.03 | |||||||||||||
| 1997 | 41.45 | 44.82 | 55.48 | 58.77 | 74.00 | 74.43 | 84.32 | 86.77 | 77.97 | 63.52 | 53.95 | j | 38.68 | l | 66.15 | |||||||||||
| 1998 | 43.81 | 44.57 | 52.84 | 59.57 | 61.94 | 74.27 | 89.13 | 89.00 | 81.97 | 64.32 | 47.67 | 40.58 | 62.47 | |||||||||||||
| 1999 | 43.84 | 42.54 | 50.03 | 58.27 | 65.68 | 75.90 | 86.13 | 85.45 | 80.70 | 71.34 | b | 60.50 | z | 43.75 | k | 65.99 | ||||||||||
| 2000 | 41.52 | 47.45 | 52.74 | 66.00 | 67.65 | 80.57 | 86.06 | 87.87 | 76.57 | 63.39 | 41.60 | 40.84 | 62.69 | |||||||||||||
| 2001 | 39.00 | 43.36 | 58.31 | b | 57.03 | a | 75.74 | 75.97 | 86.87 | 89.48 | 81.70 | 67.94 | 51.66 | a | 37.50 | a | 63.71 | |||||||||
| 2002 | 39.90 | 47.36 | 51.68 | 62.30 | 67.68 | 81.83 | 93.15 | k | 83.32 | 80.47 | 64.61 | 53.23 | 43.81 | 61.47 | ||||||||||||
| 2003 | ----- | z | 44.68 | 56.28 | f | 54.70 | 68.45 | 81.47 | 92.84 | 87.74 | 81.67 | 70.19 | 44.93 | 41.16 | 66.78 | |||||||||||
| 2004 | 36.16 | 42.72 | 59.71 | 63.27 | 65.48 | 78.40 | 89.24 | f | 86.42 | 75.50 | 64.32 | 49.00 | 43.50 | e | 60.41 | |||||||||||
| 2005 | 38.13 | 50.17 | e | 56.48 | 57.87 | 67.23 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 53.98 | |||||
| Period of Record Statistics | ||||||||||||||||||||||||||
| MEAN | 38.85 | 45.44 | 52.45 | 59.72 | 68.48 | 77.23 | 86.75 | 86.17 | 78.65 | 66.13 | 48.24 | 39.59 | 62.19 | |||||||||||||
| S.D. | 4.08 | 4.75 | 3.83 | 4.55 | 3.79 | 3.28 | 3.70 | 3.44 | 4.35 | 4.08 | 3.93 | 3.90 | 1.51 | |||||||||||||
| SKEW | -0.73 | -0.33 | 0.35 | 0.11 | 0.34 | 0.15 | -0.88 | -0.32 | -0.43 | 0.37 | -0.23 | -0.71 | -0.84 | |||||||||||||
| MAX | 46.19 | 54.82 | 59.71 | 68.97 | 79.03 | 84.23 | 92.84 | 93.23 | 86.07 | 76.23 | 56.60 | 46.03 | 64.90 | |||||||||||||
| MIN | 28.06 | 32.29 | 47.00 | 49.43 | 60.03 | 71.13 | 74.42 | 77.68 | 68.23 | 55.87 | 37.77 | 30.13 | 58.71 | |||||||||||||
| NO YRS | 43 | 44 | 43 | 44 | 44 | 43 | 41 | 43 | 42 | 43 | 41 | 40 | 36 | |||||||||||||