YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1927 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1928 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1929 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1930 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1931 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1932 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1933 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1934 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1935 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1936 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1937 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1938 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1939 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1940 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1941 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1942 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1943 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1944 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1945 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1946 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1947 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1948 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 67.03 | 76.03 | 77.48 | 72.07 | 59.87 | 55.37 | 44.35 | 64.60 | e | |||||||
1949 | 43.19 | 42.96 | 43.42 | 53.53 | 61.03 | 73.40 | 79.58 | 77.39 | 69.30 | 64.52 | 52.41 | a | 45.52 | 58.85 | ||||||||||||
1950 | 46.94 | 37.61 | 41.29 | 49.40 | 56.77 | 69.20 | 75.03 | b | 74.52 | 67.17 | 62.03 | 54.20 | 42.42 | 56.38 | ||||||||||||
1951 | 42.27 | a | 41.07 | 44.26 | 55.00 | 63.35 | 68.50 | 77.06 | 75.81 | 71.90 | 62.35 | 51.00 | a | 46.52 | 58.26 | |||||||||||
1952 | 42.19 | 39.41 | 42.81 | 54.53 | 61.45 | 72.93 | 81.68 | 77.26 | 71.40 | 60.26 | 52.00 | 42.87 | 58.23 | |||||||||||||
1953 | 42.35 | 42.42 | b | 45.03 | 53.10 | 62.03 | 71.70 | 76.58 | 75.13 | 72.20 | 62.42 | 54.33 | 48.35 | 58.80 | ||||||||||||
1954 | 38.35 | 43.39 | 44.77 | 53.03 | 59.52 | 70.23 | 75.13 | 73.55 | 68.63 | 63.87 | 51.63 | 41.90 | 57.00 | |||||||||||||
1955 | 35.90 | 38.79 | 43.55 | 51.93 | 63.61 | 69.53 | 79.03 | 77.65 | 69.53 | 62.39 | 49.93 | a | 34.74 | 56.38 | ||||||||||||
1956 | 36.71 | 38.45 | 39.40 | a | 48.90 | 56.58 | 70.40 | 72.74 | 75.42 | 68.30 | 61.42 | 52.77 | 46.61 | 55.64 | ||||||||||||
1957 | 34.90 | 40.18 | 44.35 | 53.43 | 61.90 | 73.13 | 76.65 | 74.35 | 71.13 | 60.80 | a | 53.93 | 48.06 | 57.74 | ||||||||||||
1958 | 38.81 | 32.18 | 42.74 | 53.33 | 57.61 | 66.37 | 74.68 | 74.68 | 68.10 | 58.58 | 53.17 | 36.68 | 54.74 | |||||||||||||
1959 | 37.61 | 36.89 | 42.71 | 52.03 | 63.58 | 68.60 | 74.37 | a | 76.35 | 72.97 | 62.00 | 51.90 | 43.87 | 56.91 | ||||||||||||
1960 | 38.52 | 41.21 | 38.23 | 52.73 | 61.35 | 71.03 | 75.00 | 73.90 | 69.03 | 61.03 | 53.60 | 38.74 | 56.20 | |||||||||||||
1961 | 32.16 | 38.22 | a | 42.26 | 49.90 | 57.42 | 67.93 | 75.48 | 75.00 | 73.13 | 61.87 | 50.57 | 40.03 | 55.33 | ||||||||||||
1962 | 37.68 | 33.96 | 42.32 | 51.03 | 61.58 | 70.80 | 73.45 | 74.42 | 68.00 | 59.29 | 48.57 | 37.61 | 54.89 | |||||||||||||
1963 | 36.23 | 33.21 | 42.52 | 52.47 | 58.94 | 70.40 | 76.10 | 74.65 | 64.80 | 62.68 | 53.57 | 34.87 | 55.03 | |||||||||||||
1964 | 38.90 | 35.55 | 42.74 | 49.13 | 62.48 | 69.50 | 73.71 | 73.10 | 68.67 | 59.16 | 52.63 | 42.03 | 55.63 | |||||||||||||
1965 | 34.10 | 35.50 | 40.10 | 48.57 | 61.90 | 67.70 | 74.74 | 75.68 | 68.60 | 57.90 | 48.57 | 41.65 | 54.58 | |||||||||||||
1966 | 35.00 | 36.82 | 42.97 | 48.10 | 57.23 | 68.47 | 76.94 | 76.06 | 68.23 | 59.19 | 52.40 | 41.48 | 55.24 | |||||||||||||
1967 | 42.42 | 35.39 | 38.10 | 48.43 | 54.13 | 67.47 | 74.58 | 73.06 | 67.63 | 61.23 | 47.03 | 42.55 | 54.34 | |||||||||||||
1968 | 32.97 | 32.83 | 43.61 | 53.03 | 59.39 | 68.13 | 76.55 | 75.65 | 72.53 | 62.52 | 50.63 | 38.94 | 55.56 | |||||||||||||
1969 | 36.16 | 34.29 | 39.58 | 52.07 | 61.58 | 71.23 | 74.06 | 77.13 | 69.87 | 61.03 | 51.13 | 40.10 | 55.69 | |||||||||||||
1970 | 30.00 | 37.68 | 40.61 | 51.20 | 61.68 | 67.63 | 76.16 | 77.84 | 70.17 | 61.87 | 52.17 | 39.55 | 55.55 | |||||||||||||
1971 | 33.19 | 36.61 | 41.94 | 49.50 | 59.13 | 70.70 | 77.26 | 76.52 | 72.87 | 65.52 | 50.63 | 45.71 | 56.63 | |||||||||||||
1972 | 40.39 | 38.17 | 41.52 | 49.07 | 60.42 | 67.00 | 78.26 | 78.00 | 70.10 | 57.84 | 48.67 | 44.48 | 56.16 | |||||||||||||
1973 | 39.45 | 37.82 | 46.84 | 52.63 | 59.81 | 70.60 | 76.42 | 78.10 | 70.33 | 62.74 | 51.20 | 46.45 | 57.70 | |||||||||||||
1974 | 40.87 | 36.71 | 45.10 | 53.83 | 58.61 | 68.40 | 75.71 | 78.00 | 69.97 | 58.03 | 52.27 | 44.39 | 56.82 | |||||||||||||
1975 | 42.52 | 38.18 | 42.90 | 49.27 | 62.10 | 69.67 | 76.94 | 77.00 | 67.97 | 62.78 | d | 56.43 | 41.68 | 57.28 | ||||||||||||
1976 | 35.35 | 45.38 | 47.13 | 59.38 | a | 65.19 | 76.50 | 75.65 | 75.16 | 68.20 | 56.16 | 44.73 | 36.71 | 57.13 | ||||||||||||
1977 | 28.13 | 33.75 | 45.97 | 53.63 | 62.71 | 69.50 | 77.55 | 76.26 | 68.87 | 60.06 | 52.70 | 40.87 | 55.83 | |||||||||||||
1978 | 34.77 | 31.54 | 39.23 | 50.10 | 59.52 | 70.50 | 73.52 | 75.90 | 67.53 | 60.19 | 51.30 | 43.68 | 54.81 | |||||||||||||
1979 | 39.19 | 27.25 | 46.10 | 51.23 | 62.39 | 69.30 | 76.81 | 75.97 | 70.93 | 59.74 | 56.30 | 46.45 | 56.81 | |||||||||||||
1980 | 38.61 | 35.59 | 44.29 | 53.40 | 63.29 | 69.50 | 78.65 | 77.39 | 70.63 | 57.87 | 48.80 | 39.52 | 56.46 | |||||||||||||
1981 | 29.68 | 40.96 | 41.58 | 51.83 | 61.03 | 70.73 | 76.81 | 73.65 | 67.50 | 56.90 | 49.40 | 40.87 | 55.08 | |||||||||||||
1982 | 33.83 | a | 37.54 | 42.81 | 49.17 | 61.16 | 67.60 | 78.42 | 74.26 | 68.47 | 60.45 | 55.07 | 47.26 | 56.34 | ||||||||||||
1983 | 40.35 | 41.14 | 46.23 | 53.67 | 60.19 | 73.00 | 79.13 | 76.81 | 74.67 | 62.55 | 55.53 | 42.45 | 58.81 | |||||||||||||
1984 | 36.03 | 43.31 | 40.13 | 52.23 | 62.35 | 72.80 | 75.61 | 79.10 | 70.93 | 64.58 | 53.67 | 50.68 | 58.45 | |||||||||||||
1985 | 35.50 | a | 38.29 | 46.48 | 54.57 | 63.58 | 69.43 | 77.23 | 77.35 | 72.33 | 64.23 | 55.73 | 42.97 | 58.14 | ||||||||||||
1986 | 41.39 | 36.61 | 46.39 | 54.33 | 63.03 | 69.90 | 74.90 | 74.19 | 67.57 | 61.32 | 52.03 | 44.19 | 57.15 | |||||||||||||
1987 | 38.19 | 37.32 | 45.71 | 51.90 | 61.03 | 70.53 | 76.61 | 75.06 | 69.40 | 59.61 | 51.47 | 43.32 | 56.68 | |||||||||||||
1988 | 35.61 | 38.72 | 44.87 | 51.03 | 60.26 | 69.73 | 76.45 | 76.94 | 69.17 | 56.61 | 54.40 | 42.97 | 56.40 | |||||||||||||
1989 | 43.06 | ----- | z | 41.90 | ----- | z | 61.90 | 72.43 | 74.61 | 75.32 | 70.40 | 61.68 | 50.50 | 33.45 | 58.53 | b | ||||||||||
1990 | 43.65 | 41.93 | 44.71 | 51.63 | 59.58 | 71.30 | 75.77 | 79.71 | 67.43 | 64.00 | 52.87 | 47.29 | 58.32 | |||||||||||||
1991 | 39.77 | 41.64 | 45.77 | 53.07 | 64.55 | 73.13 | 77.48 | 75.10 | a | 71.73 | 63.16 | 52.73 | 46.97 | a | 58.76 | |||||||||||
1992 | 41.00 | c | 41.61 | a | 43.03 | b | 50.80 | 61.97 | 70.43 | 76.06 | 74.29 | 69.43 | 59.87 | 51.77 | 44.17 | a | 57.04 | |||||||||
1993 | 41.70 | a | 34.30 | a | 41.87 | 52.87 | 65.26 | 73.57 | 80.81 | 79.03 | 72.13 | 62.71 | 54.62 | a | 44.10 | a | 58.58 | |||||||||
1994 | 35.15 | e | 37.61 | 45.97 | 55.90 | 61.40 | a | 73.90 | 82.23 | ----- | z | 71.50 | ----- | z | 57.61 | b | 47.25 | c | 56.85 | b | ||||||
1995 | 43.14 | c | 42.36 | c | 45.90 | b | 53.41 | a | 62.40 | a | 71.43 | ----- | z | ----- | z | 72.70 | ----- | z | ----- | z | 37.54 | c | 53.61 | d | ||
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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2001 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2002 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2003 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2004 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2005 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2006 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 69.55 | h | 61.47 | a | 54.93 | 50.46 | g | 58.20 | j | |
2007 | 42.79 | c | 33.85 | b | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 38.32 | j |
2008 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2009 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2010 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | 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 |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 38.06 | 37.79 | 43.23 | 52.03 | 61.02 | 70.27 | 76.47 | 75.98 | 69.92 | 61.03 | 52.27 | 42.60 | 56.65 | |||||||||||||
S.D. | 4.10 | 3.66 | 2.37 | 2.26 | 2.33 | 2.14 | 2.05 | 1.65 | 2.03 | 2.22 | 2.55 | 3.88 | 1.32 | |||||||||||||
SKEW | -0.30 | -0.30 | -0.32 | 0.44 | -0.66 | 0.49 | 0.80 | 0.22 | 0.09 | -0.26 | -0.43 | -0.37 | 0.15 | |||||||||||||
MAX | 46.94 | 45.38 | 47.13 | 59.38 | 65.26 | 76.50 | 82.23 | 79.71 | 74.67 | 65.52 | 57.61 | 50.68 | 58.85 | |||||||||||||
MIN | 28.13 | 27.25 | 38.10 | 48.10 | 54.13 | 66.37 | 72.74 | 73.06 | 64.80 | 56.16 | 44.73 | 33.45 | 54.34 | |||||||||||||
YRS | 48 | 47 | 47 | 46 | 47 | 48 | 47 | 46 | 48 | 47 | 48 | 48 | 44 |