| YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
| 1949 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 76.10 | 60.03 | 57.00 | 38.35 | 57.87 | |||||
| 1950 | 30.52 | 44.57 | 46.68 | 56.10 | 65.30 | a | 71.30 | 84.45 | 84.84 | 73.80 | 61.35 | 52.57 | 45.29 | 59.73 | ||||||||||||
| 1951 | 38.52 | 43.25 | 47.58 | 63.50 | 64.65 | 77.27 | 84.94 | 81.94 | 78.13 | 58.84 | 48.57 | 33.33 | a | 60.04 | ||||||||||||
| 1952 | 33.57 | a | 40.97 | 43.06 | 61.90 | 66.74 | 68.40 | 85.00 | 82.35 | 79.53 | 71.90 | 47.97 | 35.97 | 59.78 | ||||||||||||
| 1953 | 43.97 | 46.21 | 49.35 | 54.87 | 56.23 | 65.23 | 84.39 | 77.03 | 79.13 | 62.13 | 49.40 | 40.87 | 59.07 | |||||||||||||
| 1954 | 37.23 | 47.18 | 46.35 | 59.67 | 69.87 | 68.07 | 83.55 | 74.35 | 70.87 | 61.26 | 52.23 | 38.55 | 59.10 | |||||||||||||
| 1955 | 32.97 | 39.43 | 47.19 | 48.20 | 63.32 | 74.97 | 77.26 | 85.77 | 74.37 | 64.16 | 42.80 | 37.68 | 57.34 | |||||||||||||
| 1956 | 37.32 | 35.14 | 47.90 | 59.57 | 66.16 | 71.47 | 83.77 | 79.45 | 74.47 | 57.19 | 50.07 | 40.90 | 58.62 | |||||||||||||
| 1957 | 31.67 | a | 44.04 | 47.71 | 57.53 | 65.23 | 76.20 | 80.48 | 78.39 | 76.47 | 55.16 | 44.40 | 42.26 | 58.29 | ||||||||||||
| 1958 | 38.74 | 47.07 | 44.74 | 54.77 | 72.61 | 71.13 | 83.42 | 85.06 | 71.73 | 68.42 | 48.83 | 47.23 | 61.15 | |||||||||||||
| 1959 | 42.77 | 42.46 | 52.65 | 62.73 | 60.45 | 74.50 | 86.68 | 79.74 | ----- | z | ----- | z | ----- | z | ----- | z | 62.75 | |||||||||
| 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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 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 | ----- | z | ----- | z | 9999.00 | |
| 1968 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1969 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1970 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1971 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1972 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1973 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1974 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1975 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1976 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1977 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1978 | ----- | z | ----- | z | 55.84 | 52.63 | 62.71 | 73.63 | 82.94 | 80.32 | 69.13 | 70.94 | 46.50 | 35.87 | 63.05 | |||||||||||
| 1979 | 36.13 | 41.46 | 52.55 | 55.20 | 67.61 | 77.00 | 83.29 | 79.68 | 79.20 | 64.58 | 45.30 | 42.00 | 60.33 | |||||||||||||
| 1980 | 42.13 | 46.72 | 47.68 | 59.03 | 64.26 | 68.03 | 83.77 | 81.32 | 75.20 | 65.97 | 51.30 | 43.29 | 60.73 | |||||||||||||
| 1981 | 42.71 | 45.71 | 51.19 | 58.40 | 64.58 | 74.80 | 83.52 | 87.35 | 76.97 | 58.58 | 50.03 | 42.42 | 61.36 | |||||||||||||
| 1982 | 35.61 | 42.93 | 45.97 | 52.17 | 67.16 | 73.13 | 79.81 | 82.58 | 69.57 | 59.84 | 44.57 | 38.13 | 57.62 | |||||||||||||
| 1983 | 41.26 | 43.68 | 46.90 | 51.13 | 65.74 | 70.60 | 75.58 | 80.52 | 73.53 | 64.58 | 44.07 | 36.52 | 57.84 | |||||||||||||
| 1984 | 39.29 | 43.24 | 52.03 | 52.43 | 64.84 | 70.53 | 84.81 | 83.42 | 72.20 | ----- | z | 42.57 | 32.84 | 58.02 | ||||||||||||
| 1985 | 35.65 | 41.07 | 47.19 | 62.80 | 66.16 | 76.83 | 86.97 | 79.61 | 65.80 | 60.52 | 39.33 | 38.74 | 58.39 | |||||||||||||
| 1986 | 46.45 | 47.00 | 56.32 | 57.50 | 66.29 | 79.83 | 79.61 | 87.42 | 65.90 | 64.58 | 49.80 | 39.87 | 61.72 | |||||||||||||
| 1987 | 38.42 | 45.32 | 49.81 | 66.37 | 70.19 | 78.73 | 76.68 | 84.52 | 79.73 | 73.00 | 50.20 | 37.74 | 62.56 | |||||||||||||
| 1988 | 34.14 | b | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 34.14 | |
| 1989 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1990 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1991 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1992 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1993 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1994 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1995 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1996 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 63.55 | 52.03 | 42.00 | 52.53 | ||||
| 1997 | 41.61 | 46.07 | 56.10 | 56.57 | 73.26 | 73.57 | 81.71 | 83.16 | 75.53 | 62.00 | 50.20 | 40.06 | 61.65 | |||||||||||||
| 1998 | 43.94 | 43.11 | 51.61 | 56.67 | 57.10 | 73.37 | 86.61 | 87.13 | 81.17 | 62.90 | 44.57 | 36.55 | 60.39 | |||||||||||||
| 1999 | 42.52 | 39.75 | 47.74 | 55.30 | 64.26 | 72.90 | 81.94 | 80.48 | 77.70 | 69.42 | 53.43 | 42.97 | 60.70 | |||||||||||||
| 2000 | 42.39 | 47.17 | 51.65 | 62.07 | 66.39 | 78.20 | 81.06 | 84.58 | 73.40 | 61.94 | 42.43 | 43.65 | 61.24 | |||||||||||||
| 2001 | 43.00 | 43.89 | 55.84 | 54.53 | 75.42 | 75.97 | 84.84 | 87.68 | 79.10 | 69.10 | 49.83 | 37.48 | 63.06 | |||||||||||||
| 2002 | 39.52 | 47.04 | 50.77 | 61.17 | 65.45 | 77.33 | 87.81 | 82.55 | 78.67 | 65.26 | 53.00 | 43.97 | 62.71 | |||||||||||||
| 2003 | 47.94 | 47.32 | 52.94 | 51.50 | 65.61 | 79.77 | 88.03 | 81.94 | 80.80 | 68.81 | 43.60 | 40.74 | 62.42 | |||||||||||||
| 2004 | 37.61 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 37.61 | ||
| 2005 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 2006 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 2007 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 2008 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 2009 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 2010 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 2011 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 2012 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 63.30 | d | 49.93 | 37.87 | 50.37 | |||
| 2013 | 33.90 | a | 44.39 | 54.65 | 51.00 | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 44.31 | |||
| Period of Record Statistics | ||||||||||||||||||||||||||
| MEAN | 39.02 | 43.93 | 50.00 | 57.20 | 65.84 | 73.81 | 83.07 | 82.34 | 75.12 | 63.90 | 48.16 | 39.76 | 60.24 | |||||||||||||
| S.D. | 4.45 | 2.96 | 3.69 | 4.43 | 4.20 | 3.84 | 3.24 | 3.33 | 4.29 | 4.51 | 4.12 | 3.45 | 1.69 | |||||||||||||
| SKEW | -0.04 | -1.01 | 0.22 | 0.07 | -0.01 | -0.33 | -0.66 | -0.21 | -0.62 | 0.28 | -0.15 | 0.03 | -0.05 | |||||||||||||
| MAX | 47.94 | 47.32 | 56.32 | 66.37 | 75.42 | 79.83 | 88.03 | 87.68 | 81.17 | 73.00 | 57.00 | 47.23 | 63.06 | |||||||||||||
| MIN | 30.52 | 35.14 | 43.06 | 48.20 | 56.23 | 65.23 | 75.58 | 74.35 | 65.80 | 55.16 | 39.33 | 32.84 | 57.34 | |||||||||||||
| NO YRS | 29 | 27 | 28 | 27 | 27 | 27 | 27 | 27 | 27 | 28 | 29 | 29 | 24 | |||||||||||||