YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1916 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1917 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1918 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1919 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1920 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1921 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1922 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1923 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1924 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1925 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1926 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1958 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 80.17 | 68.23 | 55.60 | 47.42 | 62.85 | h | ||||
1959 | 44.19 | 44.14 | 51.55 | 61.04 | d | 70.87 | 82.70 | 87.06 | 88.45 | 75.73 | 61.77 | 52.93 | a | 49.55 | 64.17 | |||||||||||
1960 | 39.58 | 33.62 | 48.16 | 63.93 | 71.53 | a | 82.10 | 84.35 | 88.45 | 78.48 | a | 66.26 | 55.30 | 42.52 | 62.86 | |||||||||||
1961 | 47.94 | 49.07 | 48.48 | 58.00 | a | 68.71 | 80.63 | 85.03 | 82.23 | 70.27 | 67.30 | a | 50.07 | 39.97 | 62.31 | |||||||||||
1962 | 38.97 | 49.11 | a | 49.39 | 64.31 | a | 75.55 | 78.37 | 84.71 | 91.23 | a | 79.61 | b | 70.94 | 56.40 | 49.10 | 65.64 | |||||||||
1963 | 39.13 | a | 54.85 | a | 53.81 | 66.23 | 78.32 | 85.23 | 91.16 | 81.65 | 78.53 | 76.35 | 56.59 | a | 44.87 | 67.23 | ||||||||||
1964 | 45.70 | a | 40.52 | 47.03 | a | 64.37 | 75.23 | 81.67 | 93.39 | 86.32 | 77.43 | 70.16 | 52.17 | 49.16 | 65.26 | |||||||||||
1965 | 51.94 | 47.21 | 39.30 | a | 66.23 | 73.84 | 75.27 | 86.93 | a | 81.55 | 66.87 | 70.68 | 59.43 | 51.03 | 64.19 | |||||||||||
1966 | 41.77 | 42.39 | 58.61 | 63.77 | 76.87 | 83.20 | 91.16 | 82.23 | 76.87 | 66.58 | 58.30 | 46.17 | a | 65.66 | ||||||||||||
1967 | 49.03 | 51.36 | 60.68 | 66.83 | a | 68.68 | 75.33 | 82.39 | 81.65 | 77.93 | 67.76 | b | 56.43 | 38.55 | 64.72 | |||||||||||
1968 | 45.97 | 48.36 | a | 57.19 | 59.83 | a | 68.48 | 84.63 | 83.90 | 79.90 | 78.60 | 71.65 | 50.41 | a | 48.23 | 64.76 | ||||||||||
1969 | 50.71 | 50.07 | 43.97 | a | 63.83 | a | 70.65 | 76.47 | 88.45 | 87.21 | b | 77.20 | 51.87 | 53.83 | 46.81 | 63.42 | ||||||||||
1970 | 46.90 | a | 54.32 | 49.55 | 59.57 | b | 76.77 | 80.97 | 86.13 | 88.16 | 79.90 | a | 61.20 | a | 56.54 | b | 50.81 | 65.90 | ||||||||
1971 | 47.65 | 47.44 | a | 55.66 | b | 63.54 | b | 71.30 | a | 88.33 | 84.58 | 83.52 | 73.13 | 67.34 | b | ----- | z | ----- | z | 68.25 | b | |||||
1972 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 81.64 | h | ----- | 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 | 58.21 | a | 67.58 | 78.70 | 86.23 | 84.03 | 73.21 | b | 67.50 | a | 46.70 | 45.63 | a | 67.53 | c | |||||
1976 | 42.39 | 49.61 | a | 48.94 | 60.23 | 67.48 | 81.52 | a | 85.68 | 82.29 | 72.03 | 60.06 | 48.93 | 47.25 | c | 62.20 | ||||||||||
1977 | 40.00 | 47.11 | 49.33 | a | 60.33 | 72.26 | 82.87 | 83.68 | 80.73 | a | 80.17 | a | 66.77 | a | 53.03 | 46.03 | a | 63.53 | ||||||||
1978 | 36.06 | 36.43 | 54.70 | a | 61.50 | 65.29 | 79.80 | 88.52 | 81.19 | 77.83 | 65.97 | 49.67 | 34.97 | 60.99 | ||||||||||||
1979 | 29.06 | 47.43 | 51.80 | a | 61.10 | 64.48 | 78.03 | 84.26 | 80.19 | 78.93 | 69.16 | 41.43 | 45.32 | 60.93 | ||||||||||||
1980 | 35.77 | 45.97 | 46.32 | 58.40 | 64.58 | 82.87 | 88.27 | a | 85.48 | 77.20 | 64.87 | 52.77 | 55.35 | 63.15 | ||||||||||||
1981 | 48.37 | a | 48.29 | 48.84 | 67.00 | 66.84 | 82.63 | 86.16 | 78.52 | 77.13 | 62.35 | 56.23 | 44.35 | 63.89 | ||||||||||||
1982 | 42.48 | d | 43.38 | d | 52.00 | a | 63.16 | e | 68.00 | d | 73.19 | c | 84.31 | b | 81.73 | a | 70.73 | d | 63.76 | b | 51.75 | b | 42.25 | c | 61.39 | |
1983 | 44.26 | 44.14 | 45.39 | c | 51.68 | b | 64.35 | e | 74.30 | c | 86.80 | a | 85.29 | 79.70 | c | 67.15 | e | 52.21 | f | 29.04 | f | 64.31 | b | |||
1984 | 37.25 | c | 46.96 | c | 45.61 | c | 53.39 | b | 70.45 | b | 77.97 | a | 85.68 | 80.87 | a | 74.72 | e | 51.62 | b | 50.27 | d | 46.11 | d | 60.07 | ||
1985 | 36.04 | c | 38.82 | 50.97 | b | 62.31 | d | 70.15 | d | 78.74 | c | 83.65 | 85.57 | c | 71.25 | f | 65.44 | d | 46.00 | g | 40.78 | d | 61.25 | b | ||
1986 | 54.19 | d | 50.46 | d | 59.92 | e | 64.35 | d | 71.08 | f | 81.27 | d | 84.94 | 83.27 | e | 75.96 | g | 63.68 | f | 53.64 | h | 42.30 | a | 65.09 | d | |
1987 | 39.59 | b | 46.09 | f | 48.92 | g | 60.81 | c | 66.97 | a | 78.74 | c | 87.36 | c | 80.48 | h | 74.00 | b | 66.62 | g | 50.15 | d | 43.12 | e | 62.59 | d |
1988 | 36.17 | g | 46.88 | e | ----- | z | 60.93 | c | 70.48 | d | 81.71 | b | 85.87 | a | 86.64 | c | 76.07 | a | 68.32 | 52.07 | 39.52 | 66.85 | b | |||
1989 | 42.81 | 33.46 | 58.17 | m | 63.07 | 69.32 | 73.97 | 85.03 | 77.97 | a | 70.33 | 60.35 | 51.00 | b | 35.58 | 60.26 | a | |||||||||
1990 | 39.74 | 37.54 | 44.68 | 56.23 | 62.10 | 80.17 | 78.29 | g | 77.39 | 73.27 | 59.48 | 51.03 | 36.10 | b | 56.16 | a | ||||||||||
1991 | 36.71 | 48.07 | 47.29 | 53.63 | 67.48 | 77.27 | 80.03 | a | 77.97 | 70.87 | 61.84 | 38.38 | a | 36.23 | 57.98 | |||||||||||
1992 | 37.39 | 44.69 | 49.55 | 62.04 | f | 67.06 | 69.97 | 77.35 | 75.39 | 73.25 | f | 62.61 | 37.33 | 35.87 | 55.72 | b | ||||||||||
1993 | 32.84 | 36.32 | 47.24 | f | 56.15 | d | 65.00 | 75.00 | 80.61 | 76.48 | 67.13 | 57.55 | 40.27 | 40.90 | 57.11 | a | ||||||||||
1994 | 42.52 | 40.04 | 51.37 | a | 58.79 | a | 67.68 | 80.00 | 81.23 | 81.00 | 71.33 | 58.61 | 44.33 | 48.76 | j | 61.54 | a | |||||||||
1995 | 40.04 | e | 47.36 | 48.42 | 49.63 | 56.68 | 70.53 | 80.23 | 83.87 | 70.40 | ----- | z | ----- | z | ----- | z | 60.80 | c | ||||||||
1996 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1997 | ----- | z | ----- | z | ----- | z | 50.53 | 63.94 | 74.63 | 82.87 | 76.48 | 73.27 | 58.65 | 40.00 | 35.16 | 61.73 | c | |||||||||
1998 | 42.87 | 39.75 | 45.45 | 54.57 | 70.16 | 74.97 | a | 79.77 | 77.65 | 76.10 | a | 59.29 | 51.73 | 38.87 | 59.27 | |||||||||||
1999 | 43.61 | 50.54 | 52.48 | 50.93 | 63.55 | 73.63 | 85.23 | a | 81.50 | a | 69.93 | 66.32 | 60.87 | 46.20 | a | 62.07 | ||||||||||
2000 | 46.16 | 52.97 | 50.23 | 63.77 | 73.77 | 79.75 | b | 87.29 | 87.20 | a | 79.17 | 61.71 | 42.27 | 40.74 | 63.75 | |||||||||||
2001 | 40.26 | 42.25 | 49.13 | 64.00 | a | 67.71 | 82.21 | a | 88.39 | 83.03 | 78.27 | 66.74 | 54.07 | a | 45.13 | 63.43 | ||||||||||
2002 | 43.52 | 44.18 | 49.71 | 64.80 | 71.63 | a | 85.90 | 88.94 | 85.29 | 76.33 | 58.61 | 49.70 | 44.39 | 63.58 | ||||||||||||
2003 | 48.00 | 39.57 | 51.16 | 62.83 | 70.10 | 74.93 | 91.77 | 88.11 | c | 72.50 | b | 69.90 | 48.70 | 47.87 | a | 63.79 | ||||||||||
2004 | 44.48 | 40.69 | 57.74 | 60.48 | a | 73.45 | 75.47 | 80.71 | 77.65 | 75.53 | 63.65 | 46.87 | 45.26 | 61.83 | ||||||||||||
2005 | 47.10 | 45.82 | 51.13 | 57.07 | 68.29 | 79.77 | 89.50 | a | 82.32 | 77.73 | 62.35 | 54.97 | 41.29 | 63.11 | ||||||||||||
2006 | 49.87 | 44.25 | 51.48 | 65.77 | 73.48 | 85.47 | 85.42 | 80.13 | 68.60 | 61.48 | 54.30 | 38.00 | 63.19 | |||||||||||||
2007 | 33.45 | 43.71 | 56.35 | 55.56 | c | 69.19 | 78.60 | 86.68 | 85.61 | 78.30 | 67.45 | 56.10 | 37.94 | 62.41 | ||||||||||||
2008 | 38.81 | 44.10 | 51.48 | 58.80 | 70.61 | 80.73 | 88.81 | 80.71 | 74.13 | 64.94 | 55.30 | 40.32 | 62.40 | |||||||||||||
2009 | 45.16 | 51.50 | 56.10 | 57.40 | 69.77 | 76.13 | 83.39 | 81.84 | 71.71 | b | 53.52 | 54.43 | 34.13 | 61.26 | ||||||||||||
2010 | 43.19 | 36.71 | 51.50 | a | 60.80 | 67.10 | 84.20 | 86.23 | 84.50 | a | 82.50 | 67.65 | 52.87 | 47.42 | 63.72 | |||||||||||
2011 | 42.13 | 39.82 | 55.58 | 62.73 | 65.06 | 84.30 | 89.94 | 88.03 | 75.13 | 65.03 | 52.83 | 39.61 | 63.35 | |||||||||||||
2012 | 48.39 | 36.93 | 60.19 | 65.87 | 73.45 | 88.40 | 90.52 | 85.81 | 77.87 | 62.13 | 58.67 | 43.74 | 66.00 | |||||||||||||
2013 | 43.29 | 41.46 | 48.77 | 55.37 | 70.42 | 84.73 | 84.32 | 83.17 | a | 77.70 | 62.00 | i | 51.13 | 41.19 | 61.96 | a | ||||||||||
2014 | 42.81 | 41.39 | 53.21 | c | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 45.80 | i | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 42.65 | 44.51 | 51.09 | 60.27 | 69.25 | 79.57 | 85.70 | 82.75 | 75.32 | 64.19 | 51.36 | 43.11 | 63.15 | |||||||||||||
S.D. | 5.19 | 5.32 | 4.59 | 4.54 | 4.12 | 4.32 | 3.37 | 3.69 | 3.77 | 5.08 | 5.57 | 4.93 | 1.94 | |||||||||||||
SKEW | -0.20 | -0.17 | 0.15 | -0.62 | -0.22 | -0.10 | -0.10 | 0.06 | -0.45 | -0.42 | -0.87 | 0.06 | -0.40 | |||||||||||||
MAX | 54.19 | 54.85 | 60.68 | 67.00 | 78.32 | 88.40 | 93.39 | 91.23 | 82.50 | 76.35 | 60.87 | 55.35 | 67.23 | |||||||||||||
MIN | 29.06 | 33.46 | 39.30 | 49.63 | 56.68 | 69.97 | 77.35 | 75.39 | 66.87 | 51.62 | 37.33 | 34.13 | 57.98 | |||||||||||||
YRS | 49 | 49 | 46 | 50 | 50 | 51 | 50 | 50 | 49 | 48 | 47 | 48 | 36 |