YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1906 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1907 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1908 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1909 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1910 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1911 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1912 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1913 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1914 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1915 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | 43.68 | l | ----- | z |
1928 | 38.00 | 37.66 | 42.73 | a | 38.07 | c | 50.87 | 51.60 | 51.93 | a | 53.06 | 48.93 | 42.00 | 39.45 | a | 36.97 | a | 44.27 | ||||||||
1929 | 35.48 | 34.36 | c | 37.59 | d | 42.13 | 46.73 | a | 48.93 | 54.90 | 58.87 | 53.71 | b | 47.89 | c | 38.42 | d | 38.68 | f | 45.37 | a | |||||
1930 | 40.00 | d | 40.21 | d | 41.34 | b | 44.48 | a | 45.10 | a | 49.70 | 53.87 | 54.42 | 46.53 | 42.03 | a | 40.48 | c | 31.46 | c | 44.14 | |||||
1931 | 32.86 | i | 38.90 | g | 37.69 | b | 44.71 | b | 52.13 | a | 52.27 | 60.50 | a | 61.10 | b | 50.21 | b | 45.93 | a | 38.41 | c | 35.11 | d | 47.81 | b | |
1932 | 33.57 | a | 39.84 | d | 39.03 | b | 39.87 | 45.90 | 49.13 | 52.48 | 51.97 | 49.70 | 44.71 | 39.80 | ----- | z | 44.18 | a | ||||||||
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 | ----- | 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 | 31.89 | 39.97 | 36.37 | 46.65 | 50.38 | a | 55.19 | 52.10 | 55.80 | 45.87 | 44.07 | 34.42 | 44.79 | a | ||||||||||
1975 | 38.13 | 35.50 | 37.55 | 38.73 | 44.52 | 47.73 | 53.26 | 50.03 | 54.43 | 42.52 | 41.23 | 37.74 | 43.45 | |||||||||||||
1976 | 39.00 | 41.34 | 39.23 | 40.27 | 47.84 | 49.10 | 54.42 | 51.10 | 56.33 | 45.61 | 41.77 | 34.13 | 45.01 | |||||||||||||
1977 | 35.00 | a | 35.89 | 33.29 | 39.33 | 43.06 | 50.03 | 53.42 | 58.81 | 53.83 | 47.78 | d | 42.83 | 41.03 | 44.53 | |||||||||||
1978 | 41.03 | 40.89 | 46.68 | 42.93 | 45.65 | 51.57 | 54.90 | 52.58 | 56.34 | a | 51.32 | 40.87 | 34.90 | 46.64 | ||||||||||||
1979 | 39.32 | 38.71 | 42.03 | 42.10 | 48.74 | 52.63 | 55.23 | 55.10 | 54.53 | 44.35 | 37.87 | 38.66 | b | 45.77 | ||||||||||||
1980 | 43.07 | a | 43.21 | e | ----- | z | 41.07 | 44.83 | a | 48.52 | c | 54.73 | e | 58.67 | a | 53.30 | 48.42 | 42.30 | 41.97 | a | 47.28 | a | ||||
1981 | 40.65 | 43.11 | 42.29 | 46.73 | 50.45 | 55.83 | 58.55 | b | 59.29 | 56.27 | 46.86 | b | 42.97 | a | 38.61 | 48.47 | ||||||||||
1982 | 36.06 | 36.54 | 41.43 | a | 46.31 | a | 49.81 | 50.47 | 54.58 | 57.97 | 57.67 | 46.17 | a | 39.80 | 33.39 | 45.85 | ||||||||||
1983 | 35.00 | a | 36.21 | 40.97 | 38.48 | a | 44.52 | 48.73 | 52.39 | 58.58 | 55.63 | 48.74 | ----- | z | 35.87 | 45.01 | a | |||||||||
1984 | 37.84 | ----- | z | 39.13 | ----- | z | 46.35 | 52.96 | d | 62.17 | a | 61.03 | ----- | z | 46.77 | 39.87 | 39.55 | 47.30 | c | |||||||
1985 | 39.16 | 38.18 | 39.53 | a | 45.77 | 47.52 | 52.50 | 60.84 | 56.35 | 55.00 | 50.23 | 41.93 | a | 41.00 | 47.33 | |||||||||||
1986 | 44.55 | 42.82 | 44.74 | 43.27 | 47.42 | 53.00 | 56.74 | 59.50 | a | 51.45 | a | 47.07 | b | 43.30 | 37.40 | a | 47.60 | |||||||||
1987 | 35.13 | 39.19 | a | 41.58 | 45.60 | 51.74 | 52.18 | b | 52.65 | 55.45 | b | 54.60 | 55.23 | 43.60 | 35.03 | 46.83 | ||||||||||
1988 | 39.29 | 43.00 | 41.87 | 44.69 | a | 47.97 | a | 50.60 | 57.81 | 56.65 | 54.60 | 49.65 | 44.53 | 38.68 | 47.44 | |||||||||||
1989 | 37.19 | 39.21 | 41.74 | 47.73 | 47.97 | 53.24 | a | 57.06 | 56.06 | 54.67 | 49.94 | 45.37 | 39.65 | 47.49 | ||||||||||||
1990 | 39.00 | 36.86 | 42.45 | 49.00 | 49.06 | 56.63 | 59.71 | 58.97 | 57.34 | a | 51.00 | 44.27 | 38.81 | 48.59 | ||||||||||||
1991 | 38.42 | 40.86 | 40.65 | 44.27 | 47.06 | 50.30 | 56.00 | ----- | z | 57.93 | ----- | z | 44.21 | a | 41.03 | 46.07 | b | |||||||||
1992 | 39.45 | 44.59 | 45.06 | 48.97 | 54.97 | 53.53 | ----- | z | ----- | z | 56.77 | 51.52 | 45.93 | 38.32 | 47.91 | b | ||||||||||
1993 | 42.90 | a | 44.07 | 45.76 | b | 46.03 | 51.94 | 54.37 | 55.68 | 56.23 | ----- | z | ----- | z | 40.76 | a | 33.55 | 47.13 | b | |||||||
1994 | 35.13 | 37.43 | ----- | z | 44.60 | 48.19 | 52.13 | 56.03 | 58.71 | 52.97 | 45.94 | 33.83 | 35.16 | 45.47 | a | |||||||||||
1995 | 40.87 | 43.86 | 42.97 | 41.00 | 48.26 | 49.17 | 53.13 | 58.58 | 55.97 | a | 47.87 | a | 42.93 | b | 36.06 | 46.72 | ||||||||||
1996 | 36.39 | 41.83 | 40.23 | 42.37 | 48.42 | 51.68 | b | 58.06 | 59.39 | ----- | z | 45.29 | 42.70 | 39.19 | 45.96 | a | ||||||||||
1997 | 41.39 | 34.67 | a | 39.29 | 41.23 | 51.55 | 53.00 | 54.61 | 59.52 | 59.73 | 49.55 | ----- | z | 35.20 | a | 47.25 | a | |||||||||
1998 | 39.20 | a | 40.18 | 41.90 | 41.40 | 46.94 | 50.23 | ----- | z | 59.97 | 55.43 | ----- | z | ----- | z | 34.77 | a | 45.56 | c | |||||||
1999 | 36.65 | 36.27 | b | 37.10 | 40.47 | 46.70 | a | 48.33 | 54.48 | b | 52.77 | a | 52.93 | c | 45.71 | 39.57 | 34.54 | c | 43.79 | |||||||
2000 | 38.55 | b | 40.89 | b | 38.89 | d | 42.93 | a | 49.29 | c | 51.92 | f | 53.23 | a | 57.80 | a | 53.79 | a | 48.32 | c | 34.90 | 36.00 | 44.96 | a | ||
2001 | 34.00 | 36.52 | a | 42.52 | b | 41.80 | 49.61 | 50.78 | c | 54.19 | 56.80 | a | 53.04 | d | 48.73 | a | 41.35 | d | 33.90 | 45.27 | ||||||
2002 | 33.10 | 33.39 | 36.87 | a | 44.40 | t | ----- | z | ----- | z | ----- | z | 55.00 | c | 55.24 | a | 46.87 | 43.55 | a | 35.20 | a | 42.40 | d | |||
2003 | 38.15 | d | 40.04 | 39.70 | a | 39.64 | b | 46.66 | b | 52.80 | 57.63 | a | 60.10 | a | 54.76 | a | 52.56 | f | 40.35 | d | 34.36 | c | 45.83 | a | ||
2004 | 35.65 | e | 34.76 | 42.88 | e | 45.03 | 48.75 | c | 52.04 | d | 57.00 | 56.74 | 55.53 | 49.79 | b | 40.13 | 37.35 | 46.31 | ||||||||
2005 | 38.77 | 40.71 | d | 41.76 | f | 41.59 | a | 48.48 | 50.72 | a | 59.43 | h | 59.39 | 51.03 | 49.03 | b | 42.27 | h | 36.42 | 46.24 | c | |||||
2006 | 36.13 | 35.15 | a | 37.52 | b | 43.17 | a | 52.26 | d | 55.36 | e | 61.93 | d | 58.54 | c | 52.88 | e | 47.48 | b | 42.92 | d | 34.97 | a | 46.53 | ||
2007 | 31.55 | 41.00 | e | 41.90 | a | 43.75 | n | 52.10 | j | 52.00 | b | 58.83 | a | 65.60 | a | 60.16 | e | 52.46 | e | 50.50 | 37.32 | 49.13 | b | |||
2008 | 38.97 | a | 38.10 | 39.77 | 44.97 | 49.55 | 55.18 | b | 59.87 | 62.26 | 60.14 | p | ----- | z | ----- | z | ----- | z | 48.58 | d | ||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 37.94 | 38.92 | 40.70 | 42.90 | 48.25 | 51.56 | 56.06 | 57.24 | 54.42 | 47.68 | 41.62 | 36.70 | 46.10 | |||||||||||||
S.D. | 2.87 | 3.27 | 2.72 | 3.06 | 2.55 | 2.20 | 2.82 | 3.33 | 2.84 | 2.90 | 3.09 | 2.53 | 1.54 | |||||||||||||
SKEW | 0.03 | -0.12 | -0.15 | 0.06 | 0.37 | 0.36 | 0.59 | -0.19 | -0.54 | 0.15 | -0.00 | 0.30 | -0.16 | |||||||||||||
MAX | 44.55 | 44.59 | 46.68 | 49.00 | 54.97 | 56.63 | 62.17 | 65.60 | 60.16 | 55.23 | 50.50 | 41.97 | 48.59 | |||||||||||||
MIN | 31.55 | 31.89 | 33.29 | 36.37 | 43.06 | 47.73 | 51.93 | 50.03 | 46.53 | 42.00 | 33.83 | 31.46 | 43.45 | |||||||||||||
YRS | 38 | 38 | 37 | 37 | 38 | 38 | 36 | 38 | 36 | 35 | 35 | 37 | 20 |