| YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
| 1949 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 59.40 | 45.16 | 43.20 | 27.56 | 43.83 | |||||
| 1950 | 21.90 | 34.52 | 36.82 | 43.18 | 51.28 | a | 58.03 | 68.15 | 67.65 | 58.43 | 48.66 | 42.07 | 37.82 | 47.38 | ||||||||||||
| 1951 | 30.15 | 34.59 | a | 35.61 | 49.58 | 51.71 | 62.34 | a | 67.48 | 65.19 | 61.37 | 45.81 | 38.27 | 24.38 | a | 47.21 | ||||||||||
| 1952 | 25.40 | a | 30.97 | 34.05 | 47.40 | 52.60 | a | 55.28 | 68.89 | 64.77 | 62.98 | 54.39 | 35.15 | 26.56 | 46.54 | |||||||||||
| 1953 | 35.71 | 35.75 | 37.87 | 42.48 | 45.00 | 52.25 | 66.92 | 62.06 | 61.73 | 46.92 | 41.02 | 32.68 | 46.70 | |||||||||||||
| 1954 | 30.16 | 36.86 | 35.94 | 45.85 | 54.19 | 53.73 | 66.02 | 59.24 | 54.18 | 45.77 | 40.30 | 30.10 | 46.03 | |||||||||||||
| 1955 | 23.89 | 29.89 | 36.32 | 37.83 | 49.26 | 59.85 | 61.47 | 67.00 | 57.93 | 49.19 | 33.67 | 31.23 | 44.79 | |||||||||||||
| 1956 | 30.42 | 26.26 | 36.81 | 46.33 | 53.21 | 56.68 | 68.29 | 62.61 | 57.77 | 44.60 | 37.65 | 30.48 | 45.93 | |||||||||||||
| 1957 | 22.05 | a | 34.16 | 39.45 | 44.97 | 52.31 | 60.77 | 64.16 | 61.29 | 60.85 | 45.34 | 34.90 | 33.60 | 46.15 | ||||||||||||
| 1958 | 32.03 | 39.86 | 35.53 | 42.70 | 57.03 | 59.13 | 68.27 | 68.97 | 57.00 | 52.19 | 38.60 | 37.19 | 49.04 | |||||||||||||
| 1959 | 34.40 | 33.70 | 39.24 | 47.88 | 47.92 | 60.20 | 70.45 | 64.42 | ----- | z | ----- | z | ----- | z | ----- | z | 49.78 | |||||||||
| 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 | 43.98 | 42.53 | 48.68 | 58.63 | 66.26 | 63.85 | 52.93 | 51.56 | 33.32 | 24.69 | 48.64 | |||||||||||
| 1979 | 26.56 | 33.64 | 40.92 | 42.48 | 53.32 | 59.80 | 65.73 | 63.31 | 60.53 | 51.29 | 34.15 | 33.08 | 47.07 | |||||||||||||
| 1980 | 32.48 | 38.62 | 36.66 | 45.58 | 50.21 | 54.40 | 66.65 | 62.98 | 57.77 | 49.21 | 38.83 | 32.87 | 47.19 | |||||||||||||
| 1981 | 35.26 | 35.62 | 39.29 | 45.15 | 50.84 | 59.43 | 65.85 | 67.97 | 58.67 | 44.85 | 40.15 | 35.60 | 48.22 | |||||||||||||
| 1982 | 24.26 | 32.96 | 36.21 | 39.47 | 51.55 | 59.08 | 63.81 | 64.48 | 54.07 | 45.60 | 34.15 | 29.56 | 44.60 | |||||||||||||
| 1983 | 33.05 | 36.84 | 39.56 | 40.58 | 52.16 | 56.32 | 60.13 | 64.44 | 56.73 | 48.47 | 36.42 | 29.03 | 46.14 | |||||||||||||
| 1984 | 29.85 | 34.28 | 40.52 | 41.30 | 50.89 | 56.70 | 68.66 | 65.71 | 56.12 | ----- | z | 34.80 | 23.35 | 45.65 | ||||||||||||
| 1985 | 25.39 | 30.29 | 35.24 | 47.88 | 51.02 | 61.93 | 69.87 | 62.63 | 52.27 | 44.97 | 27.65 | 29.05 | 44.85 | |||||||||||||
| 1986 | 38.08 | 39.05 | 44.03 | 44.10 | 51.71 | 64.73 | 63.00 | 69.26 | 51.90 | 48.45 | 37.98 | 31.27 | 48.63 | |||||||||||||
| 1987 | 29.34 | 35.45 | 38.39 | 48.85 | 54.40 | a | 62.97 | 61.15 | a | 66.55 | 59.97 | 53.32 | 37.41 | a | 28.97 | 48.06 | ||||||||||
| 1988 | 23.76 | d | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 23.76 | |
| 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 | 46.94 | 39.42 | 34.55 | 40.30 | ||||
| 1997 | 32.32 | 35.43 | 41.03 | 42.43 | 56.27 | 57.97 | 64.40 | 65.44 | 58.15 | 45.82 | 39.55 | 29.34 | 47.35 | |||||||||||||
| 1998 | 36.23 | 35.52 | 40.40 | 43.67 | 46.89 | 58.15 | 69.11 | 67.15 | 61.52 | 45.55 | 35.70 | 25.16 | 47.09 | |||||||||||||
| 1999 | 30.71 | 29.11 | 36.87 | 41.92 | 48.87 | 56.00 | 62.81 | 63.37 | 59.17 | 49.42 | 41.80 | 31.39 | 45.95 | |||||||||||||
| 2000 | 32.31 | 37.10 | 37.92 | 46.93 | 51.16 | 61.05 | 63.27 | 64.48 | 55.13 | 45.31 | 30.63 | 31.31 | 46.38 | |||||||||||||
| 2001 | 30.37 | 32.36 | 40.50 | 40.02 | 55.73 | 56.55 | 64.23 | 66.50 | 58.03 | 48.39 | 37.00 | 29.29 | 46.58 | |||||||||||||
| 2002 | 29.15 | 34.68 | 36.24 | 45.32 | 49.18 | 59.17 | 66.95 | 61.60 | 56.77 | 44.42 | 38.00 | 33.82 | 46.27 | |||||||||||||
| 2003 | 37.97 | 33.88 | 39.44 | 39.67 | 50.68 | 61.03 | 69.69 | 64.81 | 60.87 | 51.32 | 34.43 | 32.52 | 48.02 | |||||||||||||
| 2004 | 30.05 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 30.05 | ||
| 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 | 49.76 | d | 40.68 | 30.52 | 40.32 | |||
| 2013 | 24.10 | a | 33.91 | 41.95 | a | 43.75 | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 33.32 | ||
| Period of Record Statistics | ||||||||||||||||||||||||||
| MEAN | 29.91 | 34.27 | 38.46 | 43.93 | 51.41 | 58.60 | 65.99 | 64.73 | 57.86 | 47.95 | 37.13 | 30.59 | 46.76 | |||||||||||||
| S.D. | 4.65 | 3.08 | 2.60 | 3.09 | 2.78 | 2.93 | 2.86 | 2.42 | 3.00 | 2.88 | 3.53 | 3.64 | 1.16 | |||||||||||||
| SKEW | -0.07 | -0.55 | 0.45 | -0.01 | -0.04 | -0.13 | -0.33 | -0.06 | -0.38 | 0.59 | -0.57 | -0.10 | -0.02 | |||||||||||||
| MAX | 38.08 | 39.86 | 44.03 | 49.58 | 57.03 | 64.73 | 70.45 | 69.26 | 62.98 | 54.39 | 43.20 | 37.82 | 49.04 | |||||||||||||
| MIN | 21.90 | 26.26 | 34.05 | 37.83 | 45.00 | 52.25 | 60.13 | 59.24 | 51.90 | 44.42 | 27.65 | 23.35 | 44.60 | |||||||||||||
| NO YRS | 29 | 27 | 28 | 27 | 27 | 27 | 27 | 27 | 27 | 28 | 29 | 29 | 24 | |||||||||||||