YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1948 | 45.32 | 46.76 | 52.19 | 55.70 | 64.55 | 75.73 | s | 74.74 | 71.03 | 70.53 | 62.13 | 49.30 | 42.35 | 57.69 | a | |||||||||||
1949 | 36.19 | 46.29 | 55.19 | 63.07 | 69.87 | 71.93 | 76.13 | 76.55 | 75.20 | 59.26 | 58.27 | 45.35 | 61.11 | |||||||||||||
1950 | 33.68 | 45.75 | 50.61 | 57.67 | 64.68 | 72.73 | 75.74 | 78.68 | 74.13 | 58.45 | 51.40 | 50.29 | 59.48 | |||||||||||||
1951 | 44.29 | 49.79 | 48.68 | 65.90 | 66.71 | 74.57 | 75.97 | 76.84 | 74.17 | 61.06 | 50.90 | 42.77 | 60.97 | |||||||||||||
1952 | 41.00 | 48.00 | 50.77 | 62.80 | 66.48 | 67.77 | 77.03 | 75.77 | 76.17 | 68.68 | 49.37 | 47.61 | 60.95 | |||||||||||||
1953 | 51.19 | 50.79 | 52.81 | 57.90 | 63.94 | 66.10 | 76.39 | 74.81 | ----- | z | ----- | z | ----- | z | ----- | z | 61.74 | d | ||||||||
1954 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1955 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1956 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1957 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1958 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1959 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1960 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1961 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1962 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1963 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1964 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1965 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1966 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1967 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1968 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1969 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1970 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1971 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1972 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1973 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1974 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1975 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1976 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1977 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1978 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1979 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1980 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1981 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1982 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1983 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1984 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1985 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1986 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1987 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1988 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1989 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1990 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1991 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1992 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1993 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1994 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1995 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1996 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1997 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1998 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1999 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2000 | 43.77 | 50.45 | 51.81 | 61.93 | 64.40 | a | 71.97 | a | 74.61 | 74.73 | a | 71.28 | a | 61.31 | b | 48.59 | c | 45.62 | b | 60.04 | ||||||
2001 | 46.81 | 49.96 | 55.27 | a | 56.40 | 67.13 | a | 68.21 | a | 72.82 | c | 75.43 | a | 71.22 | c | 60.03 | a | 53.07 | 45.83 | b | 60.18 | |||||
2002 | 44.77 | a | 50.30 | a | 48.96 | g | 58.27 | d | 62.69 | e | 72.80 | e | 74.67 | p | 77.26 | d | 72.40 | j | 62.26 | d | 54.55 | h | 48.45 | b | 59.60 | d |
2003 | 51.44 | d | 50.15 | h | 54.54 | e | 57.48 | a | 64.61 | 74.31 | a | 78.93 | d | 78.57 | c | 74.57 | 64.16 | 49.86 | b | 46.70 | a | 63.20 | a | |||
2004 | 44.04 | c | 51.96 | a | 58.39 | 64.64 | b | 65.93 | b | 75.42 | f | 82.87 | a | 79.73 | a | 69.15 | c | 62.96 | d | 50.66 | a | 47.21 | b | 61.59 | a | |
2005 | 47.54 | g | 54.42 | b | 59.69 | b | 60.00 | f | 66.73 | a | 68.33 | 78.10 | 80.37 | a | 71.50 | 61.60 | a | 49.44 | e | 44.87 | 63.51 | b | ||||
2006 | 48.67 | a | 48.74 | a | 52.81 | 61.37 | 67.74 | 72.07 | 78.60 | a | 77.77 | 75.25 | b | 62.26 | 50.57 | 44.12 | f | 63.26 | a | |||||||
2007 | 42.33 | m | 50.16 | c | 56.19 | e | 58.76 | a | 66.81 | 69.77 | 77.87 | a | 76.00 | 69.58 | d | 58.96 | d | 51.64 | b | 44.10 | 61.80 | a | ||||
2008 | 43.19 | 50.75 | a | 51.55 | b | 55.57 | b | 64.97 | 67.57 | 76.61 | 76.65 | 73.47 | 61.61 | 53.22 | g | 39.78 | m | 62.19 | b | |||||||
2009 | 44.35 | e | 49.32 | 50.23 | a | 59.96 | c | 68.17 | a | 72.60 | 81.94 | 77.23 | 74.82 | b | 60.19 | 51.93 | ----- | z | 62.79 | a | ||||||
2010 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 68.86 | x | ----- | z | 68.20 | y | ----- | z | ----- | z | ----- | z | ----- | z |
2011 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2012 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2013 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2014 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2015 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2016 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2017 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2018 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 44.19 | 49.56 | 53.38 | 59.83 | 65.96 | 70.77 | 77.22 | 76.71 | 72.93 | 61.66 | 51.15 | 45.93 | 60.46 | |||||||||||||
S.D. | 4.93 | 2.24 | 3.11 | 3.28 | 1.84 | 2.74 | 2.65 | 2.23 | 2.31 | 2.49 | 2.48 | 2.30 | 0.65 | |||||||||||||
SKEW | -0.58 | 0.11 | 0.56 | 0.39 | 0.26 | -0.26 | 0.66 | -0.68 | -0.29 | 1.39 | 1.89 | 0.17 | -0.37 | |||||||||||||
MAX | 51.44 | 54.42 | 59.69 | 65.90 | 69.87 | 74.57 | 82.87 | 80.37 | 76.17 | 68.68 | 58.27 | 50.29 | 61.11 | |||||||||||||
MIN | 33.68 | 45.75 | 48.68 | 55.57 | 62.69 | 66.10 | 72.82 | 71.03 | 69.15 | 58.45 | 48.59 | 42.35 | 59.48 | |||||||||||||
YRS | 14 | 15 | 15 | 15 | 16 | 14 | 15 | 16 | 14 | 15 | 13 | 12 | 6 |