YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1909 | ----- | z | ----- | z | ----- | z | ----- | z | 46.86 | x | 55.97 | 59.67 | a | 62.79 | b | 48.77 | 34.48 | 24.10 | a | 4.35 | 41.45 | e | ||||
1910 | 10.43 | a | 4.52 | a | 33.62 | b | 36.33 | 40.48 | 62.73 | 61.06 | 54.71 | c | 48.60 | 38.71 | ----- | z | 15.84 | 37.00 | a | |||||||
1911 | 9.32 | 10.41 | a | 25.76 | b | 31.00 | 44.71 | 59.69 | d | 56.50 | i | 55.62 | e | 50.04 | b | 33.89 | c | 15.67 | c | 11.26 | h | 33.61 | b | |||
1912 | -1.57 | c | 14.66 | 12.71 | 35.13 | 43.48 | 53.86 | a | 60.00 | d | 56.00 | c | 43.38 | a | 34.58 | 26.31 | a | 16.81 | d | 32.95 | ||||||
1913 | 6.90 | a | 2.88 | c | 13.90 | 35.83 | a | 42.84 | 55.19 | i | 62.12 | f | 61.53 | a | 50.27 | 32.06 | 28.69 | a | 15.52 | 29.04 | b | |||||
1914 | 7.93 | a | -0.39 | 23.30 | d | 34.27 | 45.37 | a | 55.10 | 61.90 | 57.32 | 51.42 | d | 38.58 | 26.21 | b | 5.84 | 33.90 | ||||||||
1915 | 6.32 | 15.56 | a | 13.67 | d | 41.53 | 42.00 | b | 50.11 | c | 55.03 | 53.74 | 46.18 | b | 37.48 | b | 25.64 | b | 15.55 | 33.57 | ||||||
1916 | -5.48 | b | 11.10 | 23.37 | a | 33.03 | a | 41.97 | 49.31 | a | 64.33 | a | 56.68 | 44.55 | a | 32.81 | 20.96 | b | -0.47 | a | 31.01 | |||||
1917 | 8.72 | b | 1.62 | b | 19.10 | a | 30.13 | 39.71 | c | 49.90 | 59.11 | m | 52.66 | b | 47.38 | d | ----- | z | 29.27 | 4.00 | b | 28.25 | b | |||
1918 | 2.03 | b | 10.32 | 27.30 | d | 31.04 | c | 41.68 | c | 55.00 | l | 58.92 | e | 58.65 | n | 44.18 | h | 37.29 | j | 22.26 | c | 18.38 | g | 27.65 | e | |
1919 | 18.06 | m | 7.50 | d | 18.31 | e | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 12.90 | j |
1920 | ----- | z | ----- | z | 20.13 | a | 26.97 | 44.19 | 54.67 | 60.35 | 56.61 | 48.57 | 38.06 | 21.22 | c | 13.84 | 38.46 | b | ||||||||
1921 | 19.29 | 19.44 | a | 24.45 | 31.33 | 46.48 | 59.23 | 64.21 | g | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 33.37 | f | |||||
1922 | 3.03 | -0.14 | 22.61 | 35.03 | a | 45.74 | 55.67 | 57.48 | 61.71 | 48.57 | ----- | z | ----- | z | ----- | z | 36.63 | c | ||||||||
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 | 56.72 | e | 56.61 | 56.26 | 50.03 | 34.13 | h | 23.37 | 18.26 | 43.54 | f | |||||
1953 | 18.94 | 16.64 | 24.77 | a | 29.30 | 42.61 | 57.37 | 60.90 | 60.65 | 47.70 | 41.94 | 31.00 | 19.45 | 37.61 | ||||||||||||
1954 | 5.77 | 28.11 | 17.77 | 33.80 | 42.03 | 52.87 | 63.03 | 61.52 | 51.97 | 37.19 | 31.13 | 21.13 | 37.19 | |||||||||||||
1955 | 13.97 | 8.32 | 19.35 | 38.87 | 48.00 | 52.50 | 62.17 | a | 64.35 | 49.77 | 39.48 | 13.93 | 8.03 | 34.90 | ||||||||||||
1956 | 9.94 | 11.31 | 21.13 | 27.37 | 45.50 | a | 59.76 | a | 59.06 | 57.35 | 47.63 | 39.65 | 25.50 | 19.39 | 35.30 | |||||||||||
1957 | 0.48 | 14.75 | 22.61 | 32.57 | 45.87 | 52.60 | 62.39 | 60.58 | 47.27 | 39.97 | a | 26.63 | 22.19 | 35.66 | ||||||||||||
1958 | 18.10 | 10.68 | 21.45 | 34.20 | 47.68 | 52.73 | 56.39 | 60.23 | 51.30 | 36.97 | 25.23 | 12.39 | 35.61 | |||||||||||||
1959 | 6.74 | 8.89 | 25.13 | 31.50 | 43.45 | 57.67 | 59.03 | 61.03 | 47.27 | 32.58 | 16.47 | 21.97 | b | 34.31 | ||||||||||||
1960 | 11.52 | 8.59 | 14.29 | 34.07 | 42.68 | 53.67 | 61.71 | 59.61 | 50.27 | 38.65 | 23.37 | 14.65 | 34.42 | |||||||||||||
1961 | 14.19 | 17.86 | 27.58 | 27.41 | a | 44.13 | 55.40 | 58.45 | 62.68 | 44.80 | 37.81 | 23.23 | 11.19 | 35.39 | ||||||||||||
1962 | 7.81 | 11.32 | 15.61 | 34.80 | 48.13 | 54.70 | 59.32 | 58.03 | 47.17 | 40.77 | 29.37 | 16.74 | 35.31 | |||||||||||||
1963 | 0.52 | 16.75 | 28.26 | 34.90 | 44.77 | 57.17 | a | 63.13 | 61.03 | 55.07 | 47.03 | 27.13 | 11.03 | 37.23 | ||||||||||||
1964 | 16.42 | 17.83 | 16.90 | 35.37 | 48.48 | 54.73 | 64.03 | 57.13 | 47.30 | 37.06 | 21.17 | 7.39 | 35.32 | |||||||||||||
1965 | 11.35 | 13.79 | 11.16 | 35.17 | 44.87 | 55.47 | 61.58 | 58.90 | 41.40 | 40.26 | 25.10 | 21.68 | 35.06 | |||||||||||||
1966 | 1.58 | 7.86 | 25.90 | b | 30.33 | 42.65 | 55.60 | 65.81 | 56.71 | 49.97 | 36.58 | 22.23 | 16.16 | 34.28 | ||||||||||||
1967 | 16.16 | 12.07 | 25.84 | 34.63 | 41.26 | 53.30 | 59.35 | 57.84 | 50.67 | 37.94 | 23.27 | 11.77 | 35.34 | |||||||||||||
1968 | 8.94 | 15.45 | 26.58 | 32.23 | 40.81 | 54.60 | 60.74 | 57.03 | 47.40 | 38.84 | 26.27 | 8.48 | 34.78 | |||||||||||||
1969 | 2.68 | 14.57 | 16.03 | 39.07 | 46.32 | 50.33 | 60.58 | 61.58 | 53.23 | 33.48 | 26.63 | 17.35 | 35.16 | |||||||||||||
1970 | 5.19 | 18.07 | 17.68 | 31.53 | 45.65 | 56.53 | 61.29 | 60.87 | 48.80 | 34.45 | 24.63 | 11.00 | 34.64 | |||||||||||||
1971 | 4.74 | 12.61 | 23.19 | 34.87 | 43.71 | 58.10 | 56.77 | 61.03 | 47.10 | 37.97 | 26.70 | 11.68 | 34.87 | |||||||||||||
1972 | 5.97 | 11.79 | 23.48 | 34.10 | 46.39 | 56.60 | 57.84 | 58.74 | 48.63 | 33.74 | 23.93 | 9.45 | 34.22 | |||||||||||||
1973 | 14.10 | 17.39 | ----- | z | 33.70 | 42.77 | 55.33 | 60.03 | 62.45 | 48.17 | a | 41.13 | 24.60 | 16.19 | 37.81 | a | ||||||||||
1974 | 12.48 | 18.18 | 24.50 | a | 36.41 | a | 43.83 | a | 54.53 | 66.23 | 56.26 | 44.30 | 38.35 | 26.33 | 17.00 | 36.53 | ||||||||||
1975 | 14.48 | 7.14 | 17.47 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 13.03 | i | ||
1976 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 17.53 | 13.48 | 15.51 | j | ||
1977 | -0.26 | 21.41 | a | 22.03 | b | 37.67 | 48.71 | 57.63 | 61.55 | 54.26 | 49.73 | 37.77 | 21.73 | 10.55 | 35.23 | |||||||||||
1978 | -3.50 | a | 3.92 | b | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.21 | j |
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 | 16.35 | 16.35 | k | |
1999 | 11.50 | a | 26.26 | a | 26.47 | a | 33.03 | 42.48 | 55.50 | 62.35 | 50.35 | 41.00 | 35.65 | 28.60 | 21.81 | 36.25 | ||||||||||
2000 | 15.32 | 22.69 | 28.90 | 33.60 | 45.03 | a | 51.10 | 62.23 | a | 62.97 | 50.67 | 39.65 | 17.70 | 4.97 | 36.24 | |||||||||||
2001 | 18.77 | 7.29 | 24.87 | 36.93 | 46.65 | 55.62 | a | 62.65 | 62.42 | 51.77 | 38.13 | 28.67 | 19.39 | 37.76 | ||||||||||||
2002 | 17.87 | 19.82 | 14.52 | 33.33 | 41.42 | 58.97 | 65.90 | 59.71 | 51.93 | 31.68 | 27.40 | 20.45 | 36.92 | |||||||||||||
2003 | 13.52 | 11.93 | 23.13 | 38.13 | 45.71 | 52.83 | 63.55 | 64.26 | 47.57 | 40.65 | 20.03 | 21.10 | 36.87 | |||||||||||||
2004 | 11.97 | 16.72 | 29.39 | 36.23 | 45.94 | 50.87 | 60.61 | 56.06 | 53.00 | 38.61 | 26.77 | 20.30 | a | 37.21 | ||||||||||||
2005 | 10.61 | 20.39 | 26.10 | 37.37 | 43.39 | 57.53 | 62.29 | 59.81 | 52.50 | 38.65 | 26.93 | 15.61 | 37.60 | |||||||||||||
2006 | 26.16 | 15.18 | 23.35 | 38.33 | 45.87 | 58.20 | 67.29 | 61.00 | 47.43 | 34.42 | 24.53 | 18.94 | 38.39 | |||||||||||||
2007 | 14.10 | 10.39 | 32.87 | a | 33.27 | 48.58 | 58.03 | 66.57 | h | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 32.87 | f | |||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 9.45 | 12.90 | 22.15 | 33.99 | 44.41 | 55.25 | 61.06 | 58.89 | 48.62 | 37.44 | 24.36 | 14.39 | 35.50 | |||||||||||||
S.D. | 6.83 | 6.42 | 5.33 | 3.18 | 2.35 | 2.95 | 2.77 | 3.23 | 3.00 | 3.10 | 3.99 | 5.67 | 1.54 | |||||||||||||
SKEW | -0.07 | 0.00 | -0.13 | -0.18 | 0.07 | -0.02 | 0.09 | -0.44 | -0.45 | 0.30 | -0.72 | -0.61 | -0.42 | |||||||||||||
MAX | 26.16 | 28.11 | 33.62 | 41.53 | 48.71 | 62.73 | 67.29 | 64.35 | 55.07 | 47.03 | 31.13 | 22.19 | 38.39 | |||||||||||||
MIN | -5.48 | -0.39 | 11.16 | 26.97 | 39.71 | 49.31 | 55.03 | 50.35 | 41.00 | 31.68 | 13.93 | -0.47 | 31.01 | |||||||||||||
YRS | 45 | 46 | 45 | 44 | 44 | 44 | 41 | 43 | 43 | 40 | 43 | 43 | 34 |