YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1927 | ----- | z | 49.54 | o | 54.48 | 61.00 | ----- | z | 71.80 | 76.32 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 65.90 | h | ||||
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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 48.59 | a | ----- | z | 48.59 | k |
1949 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1950 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1951 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1952 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1953 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | 72.68 | 76.00 | 60.58 | 52.30 | 48.10 | 61.93 | g | |||||
1958 | 48.52 | 54.00 | 53.77 | 60.87 | 73.63 | a | 78.83 | a | 82.32 | 79.77 | 71.83 | 65.26 | 50.80 | 50.42 | 64.17 | |||||||||||
1959 | 46.48 | 48.52 | a | 51.94 | 62.10 | 66.81 | 70.47 | 79.52 | 75.03 | a | 69.27 | 62.43 | a | 54.30 | 47.19 | 61.17 | ||||||||||
1960 | 42.90 | 51.37 | b | 54.19 | 57.70 | 60.35 | 69.82 | b | 78.61 | 71.32 | 68.50 | 60.19 | 51.57 | 50.39 | 59.74 | |||||||||||
1961 | 49.77 | a | 46.54 | 48.68 | 52.82 | b | 61.48 | 72.17 | 73.19 | 76.90 | 66.93 | 57.10 | b | 46.90 | 43.29 | 57.98 | ||||||||||
1962 | 43.97 | a | 49.26 | a | 48.83 | b | 57.73 | 57.45 | b | 68.52 | a | 73.38 | b | 69.55 | 69.59 | a | 58.87 | 50.80 | 46.81 | 57.90 | ||||||
1963 | 40.61 | 56.00 | 51.84 | 56.47 | 67.10 | 66.70 | 69.52 | b | 73.23 | 73.33 | 60.13 | a | 48.33 | 45.43 | a | 59.06 | ||||||||||
1964 | 43.10 | 48.71 | a | 49.06 | 54.20 | 62.40 | a | 65.72 | a | 70.17 | a | 70.10 | 66.62 | a | 62.90 | 46.97 | ----- | z | 58.18 | a | ||||||
1965 | 40.39 | 45.67 | a | 57.35 | 58.37 | ----- | z | ----- | z | 77.03 | ----- | z | ----- | z | ----- | z | ----- | z | 42.45 | 53.54 | f | |||||
1966 | 41.90 | b | 46.54 | b | 50.65 | 59.31 | a | 67.06 | 66.60 | 71.27 | a | 75.16 | 70.27 | 59.16 | 50.80 | 45.77 | a | 58.71 | ||||||||
1967 | 45.38 | b | 47.89 | 46.47 | a | 54.00 | 62.74 | 71.60 | 74.87 | 81.10 | 73.60 | 56.74 | 51.20 | 42.00 | 58.97 | |||||||||||
1968 | 42.39 | 53.03 | 51.42 | 54.30 | 62.84 | 67.17 | 75.10 | 69.35 | 67.50 | 55.35 | 50.13 | 40.61 | 57.43 | |||||||||||||
1969 | 34.32 | 42.36 | 52.19 | 53.23 | 67.13 | 69.43 | 71.58 | 68.87 | 66.00 | 57.48 | 50.20 | 46.03 | 56.57 | |||||||||||||
1970 | 43.84 | 53.32 | 53.26 | 52.63 | 62.48 | 72.80 | 71.94 | 71.68 | 64.20 | 57.16 | 49.60 | 40.00 | 57.74 | |||||||||||||
1971 | 41.23 | 45.93 | 45.52 | 54.70 | 63.06 | 60.83 | 73.90 | 74.84 | 64.93 | 56.32 | 48.00 | 39.29 | 55.71 | |||||||||||||
1972 | 40.03 | 45.10 | 49.03 | 49.53 | 64.81 | 66.53 | 73.17 | a | 75.26 | 63.90 | 58.90 | 49.23 | 40.58 | 56.34 | ||||||||||||
1973 | 41.42 | 48.68 | 49.29 | 56.80 | 64.13 | 64.60 | 71.65 | 68.00 | 67.70 | 56.06 | 44.13 | 45.52 | 56.50 | |||||||||||||
1974 | 42.03 | 43.93 | 47.97 | 52.13 | 55.32 | 67.33 | 68.58 | 73.13 | 73.27 | 60.13 | 49.13 | 45.03 | 56.50 | |||||||||||||
1975 | 41.26 | 43.00 | 47.61 | 50.93 | 60.16 | 63.37 | 71.61 | 65.97 | 70.03 | 54.10 | 46.87 | 42.77 | 54.81 | |||||||||||||
1976 | 44.13 | 43.79 | 45.19 | 53.60 | 61.06 | 62.73 | 69.03 | 66.00 | 68.50 | 60.39 | 51.40 | 45.23 | 55.92 | |||||||||||||
1977 | 41.03 | 50.07 | 47.32 | 58.20 | 57.35 | 66.53 | 69.03 | 74.81 | 64.00 | 57.48 | 46.33 | 43.94 | 56.34 | |||||||||||||
1978 | 46.52 | 48.50 | 54.32 | 55.47 | 61.68 | 71.63 | 74.90 | 71.29 | 62.53 | 61.97 | 45.60 | 39.48 | 57.82 | |||||||||||||
1979 | 40.16 | 43.25 | 55.77 | 56.30 | 65.19 | 68.40 | 73.19 | 70.23 | 69.20 | 60.94 | 48.73 | 46.81 | 58.18 | |||||||||||||
1980 | 39.71 | 46.55 | 48.48 | 57.80 | 61.10 | 61.30 | 70.48 | 66.81 | 65.23 | 60.87 | 50.17 | 45.87 | 56.20 | |||||||||||||
1981 | 47.48 | 47.46 | 54.81 | 53.57 | 59.68 | 61.77 | 68.13 | 76.32 | 66.90 | 56.48 | 50.37 | 43.55 | 57.21 | |||||||||||||
1982 | 39.16 | 43.68 | 48.77 | 52.47 | 61.97 | a | 71.10 | 68.03 | 71.32 | 68.07 | 57.97 | 45.20 | 42.10 | 55.82 | ||||||||||||
1983 | 45.87 | 49.46 | 52.74 | 58.47 | 65.77 | 64.00 | 67.81 | 72.32 | 65.57 | 57.42 | 49.60 | 38.10 | 57.26 | |||||||||||||
1984 | 45.06 | 46.41 | 51.74 | 52.70 | 56.52 | 63.50 | 72.55 | 71.81 | 65.53 | 53.71 | 46.14 | a | 38.71 | 55.37 | ||||||||||||
1985 | 40.55 | 43.29 | 49.24 | b | 56.00 | a | 63.16 | 68.75 | b | 79.45 | 74.42 | 63.59 | a | 54.39 | 40.83 | 37.68 | 55.95 | |||||||||
1986 | 46.43 | c | 46.39 | 54.32 | 53.23 | 60.72 | b | 69.96 | c | 66.33 | a | 78.17 | b | 64.25 | b | 61.26 | 48.32 | b | 43.32 | 57.73 | ||||||
1987 | 42.29 | 48.22 | a | 52.45 | 60.07 | 64.32 | 70.62 | a | 68.77 | 74.80 | a | 69.72 | a | 62.42 | 49.63 | 40.55 | 58.66 | |||||||||
1988 | 43.27 | a | 48.86 | 52.03 | b | 57.93 | a | 61.16 | 66.03 | 72.94 | 72.97 | b | 65.53 | 59.48 | b | 47.41 | a | 42.45 | 57.51 | |||||||
1989 | 42.50 | a | 40.93 | 46.23 | 60.27 | 62.47 | a | 68.71 | b | 68.30 | a | 69.26 | 71.27 | 57.60 | a | 48.31 | a | 44.57 | a | 56.70 | ||||||
1990 | 44.35 | 41.62 | b | 54.16 | 58.14 | b | 60.13 | 65.11 | b | 76.68 | 75.03 | a | 70.80 | 55.06 | 48.64 | b | 37.62 | b | 57.28 | |||||||
1991 | 41.75 | c | 52.46 | 48.93 | a | 54.87 | 58.58 | 62.79 | a | 73.77 | 71.58 | 70.69 | a | 58.48 | 49.17 | 44.87 | 57.33 | |||||||||
1992 | 45.70 | a | 50.90 | 59.77 | a | 57.69 | a | 69.63 | a | 71.60 | 73.61 | 73.90 | 65.37 | 57.60 | a | 47.70 | 39.97 | 59.45 | ||||||||
1993 | 38.63 | a | 48.68 | 53.55 | 52.90 | a | 66.13 | 66.50 | 66.60 | a | 73.19 | 72.20 | 59.53 | a | 45.13 | 41.97 | 57.08 | |||||||||
1994 | 47.59 | b | 42.64 | 55.16 | 57.47 | 63.93 | b | 65.14 | a | 74.03 | b | 71.97 | 68.70 | 56.32 | 42.90 | 42.14 | b | 57.33 | ||||||||
1995 | 47.94 | 48.67 | a | 52.16 | 56.43 | 66.33 | a | 68.83 | a | 73.29 | 68.94 | 69.20 | 55.77 | 51.10 | 43.68 | 58.53 | ||||||||||
1996 | 42.45 | 48.21 | 53.47 | a | 55.33 | 57.68 | 66.60 | 76.53 | a | 74.70 | a | 64.47 | 55.63 | a | 46.27 | 40.50 | a | 56.82 | ||||||||
1997 | 44.39 | 46.14 | 48.03 | a | 54.21 | a | 66.32 | 64.41 | a | 72.17 | a | 75.03 | 68.60 | 55.68 | 52.10 | 43.23 | 57.53 | |||||||||
1998 | 43.61 | 48.07 | 51.71 | 58.20 | 60.30 | a | 66.10 | 73.13 | a | 75.16 | 71.83 | 56.73 | a | 48.60 | 41.13 | 57.88 | ||||||||||
1999 | 43.97 | 42.96 | 47.19 | 57.31 | a | 58.84 | 62.70 | 70.19 | 72.00 | 69.37 | 55.71 | 49.37 | 44.13 | 56.15 | ||||||||||||
2000 | 39.74 | 47.10 | 49.45 | 58.97 | 58.19 | 68.14 | a | 71.28 | b | 70.63 | d | 65.58 | f | 56.33 | a | 46.12 | e | 42.32 | 55.30 | a | ||||||
2001 | 43.90 | a | 45.36 | c | 51.27 | a | 53.75 | f | 62.91 | h | 64.00 | e | 69.46 | g | 69.67 | d | 66.92 | d | 57.64 | i | 48.15 | c | 41.96 | g | 55.61 | e |
2002 | 42.93 | c | 45.92 | b | 45.88 | e | 55.76 | m | 59.21 | g | 64.55 | j | 73.23 | e | 73.54 | g | 66.59 | a | 57.00 | c | 49.14 | a | 43.75 | c | 53.06 | d |
2003 | 47.43 | a | 45.96 | a | 48.81 | d | 51.80 | e | 60.54 | g | 70.59 | c | 73.30 | k | 72.67 | j | 68.36 | b | 57.18 | c | 46.26 | c | 41.97 | a | 53.15 | c |
2004 | 40.03 | b | 46.58 | c | 51.96 | d | 62.40 | e | 59.52 | f | 65.43 | i | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 50.24 | h |
2005 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2006 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2007 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 |
2017 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 43.15 | 47.19 | 51.01 | 56.10 | 62.55 | 67.37 | 72.60 | 72.60 | 68.14 | 58.18 | 48.48 | 43.14 | 57.53 | |||||||||||||
S.D. | 3.03 | 3.38 | 3.27 | 3.08 | 3.76 | 3.67 | 3.58 | 3.35 | 3.10 | 2.60 | 2.56 | 3.07 | 1.68 | |||||||||||||
SKEW | -0.10 | 0.42 | 0.26 | 0.07 | 0.48 | 0.48 | 0.49 | 0.18 | 0.34 | 0.54 | -0.54 | 0.29 | 1.69 | |||||||||||||
MAX | 49.77 | 56.00 | 59.77 | 62.40 | 73.63 | 78.83 | 82.32 | 81.10 | 76.00 | 65.26 | 54.30 | 50.42 | 64.17 | |||||||||||||
MIN | 34.32 | 40.93 | 45.19 | 49.53 | 55.32 | 60.83 | 66.33 | 65.97 | 62.53 | 53.71 | 40.83 | 37.62 | 54.81 | |||||||||||||
YRS | 47 | 47 | 48 | 46 | 42 | 45 | 45 | 44 | 45 | 45 | 47 | 45 | 40 |