YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1906 | ----- | z | 20.93 | 26.42 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 23.67 | j | ||
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 | ----- | 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 | 60.06 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 60.06 | k | |
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 | 29.81 | 46.43 | 53.48 | 66.37 | 75.39 | 73.55 | 64.70 | 55.84 | 39.10 | 23.03 | 52.77 | b | ||||||||||
1961 | 20.35 | 31.14 | 37.84 | 42.53 | 56.65 | 70.90 | 73.84 | 77.90 | 64.67 | 55.74 | 38.43 | 25.00 | 49.58 | |||||||||||||
1962 | 14.55 | 17.68 | 32.97 | 44.97 | 53.19 | 61.90 | 70.61 | 72.48 | 64.27 | 55.42 | 42.37 | 26.00 | 46.37 | |||||||||||||
1963 | 12.26 | 20.07 | 38.42 | 46.67 | 55.35 | 67.72 | a | 75.55 | 74.37 | a | 67.57 | 64.26 | 44.27 | 19.23 | 48.81 | |||||||||||
1964 | 28.13 | 29.14 | 32.06 | 44.80 | 62.55 | 64.67 | 74.77 | 68.13 | 62.87 | 54.71 | 39.10 | 22.42 | 48.61 | |||||||||||||
1965 | 18.94 | 20.57 | 29.03 | 44.70 | 55.00 | 63.70 | 70.35 | 70.84 | 58.07 | 53.58 | 38.17 | 31.29 | 46.19 | |||||||||||||
1966 | 13.32 | 25.25 | 35.39 | 42.17 | 55.61 | 68.30 | 76.71 | 70.16 | 67.43 | 53.16 | 35.13 | 25.13 | 47.31 | |||||||||||||
1967 | 23.42 | 18.00 | 34.29 | 43.57 | 54.68 | 63.10 | 72.58 | 72.35 | 66.20 | 52.45 | 36.80 | 27.23 | 47.06 | |||||||||||||
1968 | 21.58 | 22.93 | 41.26 | 48.93 | 52.97 | 64.07 | 73.10 | 67.94 | 65.70 | 54.77 | 38.93 | 23.35 | 47.96 | |||||||||||||
1969 | 18.77 | 25.25 | 32.84 | 46.13 | 58.65 | 60.50 | 68.29 | 79.87 | 67.67 | 49.35 | 40.57 | 27.26 | 47.93 | |||||||||||||
1970 | 13.71 | 23.79 | 33.74 | 42.73 | 49.67 | a | 64.60 | 76.29 | 75.52 | 64.07 | 50.81 | 36.20 | 25.16 | 46.36 | ||||||||||||
1971 | 13.61 | 22.21 | 32.06 | 46.53 | 53.55 | 65.20 | 72.13 | 73.03 | 65.83 | 56.19 | 36.87 | 26.19 | 46.95 | |||||||||||||
1972 | 14.61 | 19.48 | 28.13 | 39.63 | 51.42 | 64.10 | 69.97 | 69.35 | 61.57 | 48.77 | 34.23 | 17.71 | 43.25 | |||||||||||||
1973 | 23.19 | 26.50 | 37.19 | 46.37 | 52.84 | 64.00 | 75.00 | a | 72.55 | 64.23 | 56.16 | 37.40 | 23.42 | 48.24 | ||||||||||||
1974 | 18.71 | 24.89 | 29.81 | 42.70 | 49.65 | 67.23 | 75.10 | 70.00 | 59.70 | 52.45 | 39.00 | 30.16 | 46.62 | |||||||||||||
1975 | 21.58 | 23.43 | 29.19 | 39.03 | 57.58 | 63.63 | 77.84 | 70.58 | 60.33 | 54.68 | 41.63 | 23.84 | 46.95 | |||||||||||||
1976 | 17.94 | 32.07 | 32.45 | 46.77 | 58.58 | 69.70 | 77.29 | 75.81 | 68.50 | 49.00 | a | 32.47 | 18.39 | 48.25 | ||||||||||||
1977 | 12.23 | 28.56 | a | 38.23 | 50.45 | a | 60.42 | 66.52 | a | 76.00 | b | 68.16 | 61.13 | 56.87 | 38.46 | b | 23.23 | 48.35 | ||||||||
1978 | 18.79 | c | 23.14 | 35.86 | b | 43.21 | a | 57.03 | b | 67.72 | a | 71.00 | 71.42 | 65.17 | 53.45 | 35.57 | 20.29 | 46.89 | ||||||||
1979 | 9.03 | a | 12.00 | 29.94 | 40.63 | 49.69 | b | 65.93 | 71.33 | a | 67.81 | 65.80 | 49.68 | 35.80 | 31.73 | a | 44.11 | |||||||||
1980 | 21.10 | 23.52 | 31.06 | 49.37 | 64.06 | ----- | z | 79.81 | 72.84 | 63.73 | 51.27 | a | 42.10 | a | 25.29 | 47.65 | a | |||||||||
1981 | 25.71 | 28.86 | 40.06 | 49.30 | 55.29 | 64.77 | 73.68 | 72.77 | 64.87 | 50.55 | 43.79 | a | 25.40 | a | 49.59 | |||||||||||
1982 | 15.05 | j | 27.26 | e | 32.60 | a | 44.17 | 54.00 | a | 63.87 | 71.70 | a | 68.73 | a | 59.43 | 52.97 | 34.93 | 29.32 | 49.00 | a | ||||||
1983 | 24.94 | 30.15 | a | 33.00 | 44.63 | 51.52 | 62.17 | 76.74 | 78.45 | 63.37 | 51.74 | 37.73 | 13.55 | 47.33 | ||||||||||||
1984 | 18.87 | 33.17 | 29.19 | 45.93 | 56.10 | 64.33 | 75.29 | 74.32 | 62.20 | 51.26 | 37.57 | 23.71 | 47.66 | |||||||||||||
1985 | 18.71 | 21.75 | 37.19 | 46.40 | 58.32 | 63.73 | 76.58 | 70.26 | 63.00 | a | 54.97 | 31.83 | 15.55 | 46.52 | ||||||||||||
1986 | 23.55 | 22.93 | 39.55 | 47.90 | 57.10 | a | 66.45 | a | 71.74 | 71.35 | 60.10 | 52.94 | 35.40 | 28.65 | 48.14 | |||||||||||
1987 | 25.93 | b | 34.00 | b | 38.03 | 53.23 | 57.10 | b | 73.17 | a | 74.97 | a | 74.30 | a | 67.66 | a | 50.53 | a | 42.07 | c | 30.12 | e | 51.76 | |||
1988 | 17.81 | j | 19.64 | d | 32.97 | b | 47.85 | d | 59.88 | n | 69.46 | d | ----- | z | 73.00 | f | 63.31 | d | 47.22 | d | 36.38 | d | 26.89 | m | 45.26 | e |
1989 | 24.88 | e | 16.73 | b | 26.14 | b | 41.72 | a | 55.79 | b | 63.21 | a | 74.13 | a | 72.81 | d | 65.97 | 51.03 | 32.90 | 15.29 | 45.05 | |||||
1990 | 30.29 | g | 27.04 | a | 34.45 | 46.21 | a | 52.39 | ----- | z | ----- | z | 74.03 | 67.93 | 53.16 | 41.17 | 26.19 | 46.95 | c | |||||||
1991 | 14.33 | g | 29.72 | c | 34.52 | h | 44.34 | a | 54.29 | c | 63.77 | 71.12 | n | 79.18 | i | 63.80 | 51.39 | 31.97 | 27.26 | 45.82 | d | |||||
1992 | 25.10 | b | 30.76 | d | 35.23 | 42.59 | a | 60.32 | 64.07 | a | 68.65 | 70.81 | 62.50 | 51.23 | 34.79 | b | 26.36 | c | 47.70 | |||||||
1993 | 22.27 | a | 25.85 | a | 33.59 | b | 42.80 | 55.56 | d | 62.10 | 71.29 | ----- | z | 57.76 | e | ----- | z | 34.38 | a | 25.23 | a | 43.08 | b | |||
1994 | 9.97 | b | 16.82 | 38.27 | a | 48.27 | 59.16 | 67.96 | c | 74.43 | q | 70.35 | 65.33 | 54.87 | 43.79 | f | 31.88 | e | 46.29 | b | ||||||
1995 | 24.35 | 23.56 | a | 33.70 | a | 41.57 | b | 58.79 | c | 68.04 | d | 75.70 | a | 71.77 | ----- | z | 51.37 | a | 29.27 | 21.35 | 45.41 | a | ||||
1996 | 14.94 | 20.52 | 26.32 | 39.73 | 51.07 | a | 62.93 | 68.67 | a | 72.13 | 63.63 | 52.52 | 29.87 | 21.61 | 43.66 | |||||||||||
1997 | 16.13 | 25.46 | 30.23 | 41.76 | a | 48.26 | 67.77 | h | 68.74 | 71.06 | 67.77 | 50.32 | 33.87 | 33.20 | a | 44.25 | a | |||||||||
1998 | 24.50 | a | ----- | z | 38.59 | n | 51.30 | 61.23 | 64.37 | 77.23 | 77.42 | 71.57 | 55.81 | 41.57 | 30.74 | 55.57 | b | |||||||||
1999 | 19.39 | 31.82 | 37.87 | 45.73 | 58.58 | 68.10 | 76.71 | 73.23 | a | 66.13 | 51.35 | 45.43 | 30.26 | 50.38 | ||||||||||||
2000 | 21.90 | 30.28 | 40.90 | 44.93 | 61.03 | ----- | z | ----- | z | 76.37 | a | 67.03 | 55.39 | 37.90 | 16.03 | 45.18 | b | |||||||||
2001 | 27.13 | 21.14 | 35.19 | 46.03 | 60.67 | a | 67.37 | ----- | z | 76.68 | 65.40 | 53.55 | 48.70 | 32.65 | 48.59 | a | ||||||||||
2002 | 28.42 | 33.36 | 28.61 | 44.03 | a | 54.06 | 68.83 | 79.32 | 72.50 | a | 66.70 | 45.68 | 36.63 | 29.71 | 48.99 | |||||||||||
2003 | 20.26 | 21.39 | 30.61 | 44.10 | 53.45 | 63.87 | 78.13 | 79.77 | 65.97 | 52.81 | 38.79 | a | 31.10 | 48.35 | ||||||||||||
2004 | 17.73 | a | 26.55 | 37.00 | 51.30 | 54.06 | 65.27 | 74.52 | 69.10 | 66.40 | ----- | z | ----- | z | ----- | z | 51.33 | c | ||||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 19.76 | 24.76 | 33.61 | 45.20 | 55.80 | 65.55 | 74.02 | 72.69 | 64.48 | 52.82 | 37.66 | 25.13 | 47.45 | |||||||||||||
S.D. | 5.07 | 5.13 | 4.08 | 3.24 | 3.72 | 2.68 | 3.10 | 3.18 | 2.93 | 3.11 | 4.12 | 5.06 | 1.84 | |||||||||||||
SKEW | -0.26 | -0.10 | 0.01 | 0.32 | 0.08 | 0.66 | -0.23 | 0.54 | -0.35 | 0.79 | 0.31 | -0.47 | -0.27 | |||||||||||||
MAX | 28.42 | 34.00 | 41.26 | 53.23 | 64.06 | 73.17 | 79.81 | 79.87 | 71.57 | 64.26 | 48.70 | 33.20 | 51.76 | |||||||||||||
MIN | 9.03 | 12.00 | 26.14 | 39.03 | 48.26 | 60.50 | 68.29 | 67.81 | 57.76 | 45.68 | 29.27 | 13.55 | 43.25 | |||||||||||||
YRS | 40 | 44 | 44 | 45 | 45 | 41 | 39 | 42 | 44 | 43 | 43 | 43 | 31 |