| YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
| 1941 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 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 | 32.03 | 36.29 | 40.60 | 62.33 | 66.71 | 75.55 | 80.31 | 77.87 | 72.72 | a | 58.98 | a | 42.87 | 41.77 | 57.34 | |||||||||||
| 1949 | 28.89 | 40.23 | 49.45 | 55.43 | a | 65.60 | 72.75 | 77.68 | 76.21 | 70.12 | 58.26 | 53.14 | a | 38.60 | a | 57.20 | ||||||||||
| 1950 | 43.15 | 46.74 | a | 48.88 | a | 57.59 | a | 66.60 | b | 76.47 | 75.30 | a | 75.50 | b | 68.10 | a | 66.21 | 47.60 | 40.87 | 59.42 | ||||||
| 1951 | 35.34 | 43.11 | 46.18 | 54.70 | 65.87 | 73.75 | 82.45 | 79.82 | 71.17 | 59.60 | 43.57 | 39.90 | 57.95 | |||||||||||||
| 1952 | 42.52 | 43.26 | 46.18 | 56.50 | 66.40 | 80.37 | 78.65 | 80.18 | 70.05 | 58.40 | 40.60 | 37.18 | 58.36 | |||||||||||||
| 1953 | 45.11 | 39.46 | 52.08 | 55.28 | 63.79 | 81.98 | 80.40 | 77.52 | 72.22 | 60.87 | a | 48.47 | 35.97 | 59.43 | ||||||||||||
| 1954 | 41.29 | 48.72 | a | 46.76 | 62.27 | 64.40 | 78.07 | 82.37 | 78.82 | 74.52 | a | 60.40 | ----- | z | ----- | z | 63.76 | |||||||||
| 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 | 44.60 | 57.75 | 70.21 | 73.17 | 77.71 | 79.24 | 70.18 | 61.42 | 47.87 | 40.39 | 62.25 | |||||||||||
| 1963 | 29.44 | 40.80 | 49.48 | 60.80 | 68.35 | 75.02 | 81.13 | 77.05 | 72.07 | 64.55 | 49.72 | 34.52 | 58.58 | |||||||||||||
| 1964 | 37.44 | 31.69 | 45.39 | 56.93 | 68.27 | 77.03 | 81.97 | 78.60 | 70.05 | 61.19 | 46.62 | 39.74 | 57.91 | |||||||||||||
| 1965 | 42.56 | 37.48 | 40.73 | 59.20 | 65.42 | 73.50 | 79.94 | 75.95 | 67.90 | 59.23 | 52.95 | 42.63 | 58.12 | |||||||||||||
| 1966 | 30.97 | 36.93 | 51.13 | 57.12 | 67.11 | 74.52 | 83.29 | 73.65 | 69.83 | 57.52 | 51.23 | 36.26 | 57.46 | |||||||||||||
| 1967 | 41.27 | 41.20 | 54.47 | 61.60 | 65.08 | 74.13 | 77.44 | 73.56 | 68.72 | 60.37 | 47.27 | 33.82 | 58.24 | |||||||||||||
| 1968 | 39.29 | 40.22 | 47.40 | 54.58 | 63.81 | 76.72 | 77.37 | 76.74 | 69.72 | 61.97 | 45.23 | 39.50 | 57.71 | |||||||||||||
| 1969 | 44.66 | 42.20 | 40.42 | 59.87 | 66.53 | 72.72 | 81.56 | 79.95 | 70.63 | 54.48 | 46.47 | 40.66 | 58.35 | |||||||||||||
| 1970 | 35.73 | 44.98 | 42.66 | 55.40 | 67.92 | 74.45 | 79.39 | 78.21 | 67.73 | 53.23 | 48.20 | 44.06 | 57.66 | |||||||||||||
| 1971 | 39.05 | 39.98 | 49.08 | 56.70 | 65.35 | 76.80 | 77.44 | 73.48 | 67.70 | 56.98 | 47.88 | 39.79 | 57.52 | |||||||||||||
| 1972 | 38.85 | 44.29 | 53.89 | 60.82 | 66.35 | 76.90 | 76.08 | 73.90 | 67.68 | 56.81 | 39.30 | 36.90 | 57.65 | |||||||||||||
| 1973 | 33.61 | 40.16 | 46.47 | 50.80 | 63.03 | 74.53 | 76.98 | 78.53 | 67.47 | 60.47 | 51.07 | 38.69 | 56.82 | |||||||||||||
| 1974 | 37.63 | 43.20 | 54.18 | 58.65 | 72.02 | 77.18 | 79.10 | 74.90 | 63.98 | 59.32 | 46.43 | 36.77 | 58.61 | |||||||||||||
| 1975 | 37.29 | 37.11 | 46.79 | 54.52 | 64.26 | 74.73 | 75.31 | 77.63 | 66.20 | 60.89 | 46.22 | 41.81 | 56.90 | |||||||||||||
| 1976 | 38.31 | 48.78 | 48.50 | 59.20 | 63.63 | 75.53 | 76.85 | 77.42 | 69.17 | 52.63 | 41.78 | 38.55 | 57.53 | |||||||||||||
| 1977 | 31.92 | 43.14 | 47.40 | 58.58 | 68.68 | 79.52 | 80.94 | 78.89 | 73.63 | 60.82 | 48.87 | 42.77 | 59.60 | |||||||||||||
| 1978 | 33.02 | 35.93 | 49.48 | 61.10 | 65.53 | 75.93 | 82.10 | 76.98 | 70.23 | 60.50 | 46.97 | 32.69 | 57.54 | |||||||||||||
| 1979 | 27.98 | 41.75 | 49.03 | 56.87 | 64.58 | 73.87 | 79.02 | 75.55 | 71.22 | 61.21 | 41.63 | 39.90 | 56.88 | |||||||||||||
| 1980 | 38.29 | 41.09 | 47.29 | 54.72 | 64.47 | 81.30 | 84.79 | 77.56 | 69.60 | 57.21 | 45.30 | 44.89 | 58.88 | |||||||||||||
| 1981 | 41.03 | 44.52 | 48.98 | 63.13 | 65.76 | 78.58 | 80.87 | 75.35 | 69.37 | 58.19 | 51.92 | 42.66 | 60.03 | |||||||||||||
| 1982 | 39.76 | 39.66 | 50.23 | 57.17 | 65.73 | 73.15 | 78.92 | ----- | z | 71.15 | ----- | z | ----- | z | ----- | z | 59.47 | |||||||||
| 1983 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1984 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1985 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1986 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1987 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1988 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 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 | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1997 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1998 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1999 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 2000 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 2001 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 2002 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 2003 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 2004 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 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 | 36.53 | 37.38 | b | 52.23 | 60.21 | k | 66.15 | 81.83 | a | 84.83 | d | 84.32 | a | 70.55 | a | 59.95 | 48.30 | 32.60 | 59.52 | |||||||
| 2012 | 42.75 | a | 40.56 | c | 54.39 | d | 63.91 | a | 70.77 | 82.50 | 84.23 | 81.92 | 73.00 | 61.00 | a | 53.65 | 43.48 | 62.68 | ||||||||
| 2013 | 38.89 | 43.23 | 52.55 | 61.00 | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 31.50 | z | 44.89 | ||||
| Period of Record Statistics | ||||||||||||||||||||||||||
| MEAN | 37.49 | 41.14 | 48.29 | 58.05 | 66.28 | 76.42 | 79.81 | 77.42 | 69.89 | 59.40 | 47.18 | 39.19 | 58.24 | |||||||||||||
| S.D. | 4.75 | 3.79 | 3.91 | 3.10 | 2.16 | 2.93 | 2.72 | 2.52 | 2.26 | 2.91 | 3.78 | 3.36 | 1.25 | |||||||||||||
| SKEW | -0.40 | -0.08 | -0.33 | 0.00 | 0.91 | 0.72 | 0.17 | 0.52 | -0.28 | -0.31 | -0.22 | -0.36 | 1.81 | |||||||||||||
| MAX | 45.11 | 48.78 | 54.47 | 63.91 | 72.02 | 82.50 | 84.83 | 84.32 | 74.52 | 66.21 | 53.65 | 44.89 | 62.68 | |||||||||||||
| MIN | 27.98 | 31.69 | 40.42 | 50.80 | 63.03 | 72.72 | 75.30 | 73.48 | 63.98 | 52.63 | 39.30 | 32.60 | 56.82 | |||||||||||||
| NO YRS | 30 | 30 | 31 | 29 | 30 | 30 | 30 | 29 | 30 | 29 | 28 | 28 | 26 | |||||||||||||