YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1910 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 46.00 | h | 31.67 | a | 26.77 | 16.10 | a | 24.84 | i | |
1911 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 47.03 | 31.74 | 18.73 | 9.90 | 26.85 | h | ||||
1912 | 11.55 | 18.17 | 27.39 | 29.72 | a | 39.03 | 46.83 | 53.55 | 51.00 | 37.87 | 32.45 | 22.67 | 6.00 | 31.35 | ||||||||||||
1913 | 1.52 | 16.14 | 23.77 | 33.40 | 42.06 | 48.03 | 53.42 | 54.32 | 43.27 | 31.32 | 28.50 | 10.06 | 32.15 | |||||||||||||
1914 | 12.55 | 15.61 | 25.26 | 36.23 | 41.77 | 47.67 | 55.65 | 52.45 | 45.03 | 35.65 | 21.90 | 11.13 | 33.41 | |||||||||||||
1915 | 8.87 | 20.93 | a | 25.58 | 37.53 | 39.39 | 45.30 | 52.61 | 49.81 | 44.33 | 31.48 | 23.87 | 17.26 | 33.08 | ||||||||||||
1916 | 12.71 | 16.10 | 27.10 | 32.90 | 36.74 | 44.93 | 54.13 | 51.16 | 41.70 | 33.52 | 17.00 | 10.10 | 31.51 | |||||||||||||
1917 | 3.29 | 14.64 | 19.35 | 29.60 | 37.35 | 45.10 | 55.42 | 50.55 | 44.57 | 30.81 | 27.03 | 21.65 | 31.61 | |||||||||||||
1918 | 11.03 | 13.11 | 28.87 | 31.30 | 39.77 | 51.63 | 52.65 | 50.77 | 44.10 | 37.71 | 21.13 | 12.00 | 32.84 | |||||||||||||
1919 | 3.32 | 15.41 | a | 24.35 | 34.50 | 41.68 | 47.27 | 57.10 | 52.45 | 47.87 | 30.81 | 20.93 | 4.03 | 31.64 | ||||||||||||
1920 | 8.00 | a | 19.28 | 23.39 | 29.40 | 41.48 | 46.93 | 52.52 | 50.50 | a | 40.87 | 33.19 | 24.93 | b | 14.48 | 32.08 | ||||||||||
1921 | 15.39 | 18.43 | 28.26 | 30.10 | 40.19 | 47.80 | 53.74 | 52.00 | 42.17 | 35.23 | 23.80 | 21.87 | 34.08 | |||||||||||||
1922 | 9.81 | 17.04 | 22.48 | 29.17 | 38.39 | 47.13 | 52.90 | 54.32 | 44.17 | 31.29 | 22.57 | 20.39 | 32.47 | |||||||||||||
1923 | 15.39 | 16.18 | 19.81 | 32.07 | 40.61 | 44.63 | 55.74 | 51.74 | 41.97 | 30.00 | 21.57 | 14.29 | 32.00 | |||||||||||||
1924 | 1.13 | 21.14 | 22.32 | 29.37 | 37.94 | 46.53 | 53.39 | 50.65 | 41.00 | 33.80 | a | 23.03 | 7.00 | 30.61 | ||||||||||||
1925 | 5.19 | 19.61 | 26.80 | a | 34.13 | 42.39 | 47.07 | a | 54.13 | 51.35 | 46.66 | a | 32.81 | 22.52 | a | 19.42 | 33.51 | |||||||||
1926 | 10.77 | 22.74 | a | 23.63 | a | 35.87 | 38.63 | a | 44.40 | 51.29 | 49.29 | 37.03 | 29.32 | i | 20.83 | ----- | z | 33.45 | b | |||||||
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 | 37.45 | 41.90 | 52.63 | a | 43.03 | b | ----- | z | ----- | z | ----- | z | ----- | z | 43.75 | h | ||
1930 | ----- | z | ----- | z | 24.16 | 34.53 | 36.58 | 42.43 | 53.77 | 53.29 | 40.83 | 29.52 | 13.63 | 2.19 | 33.09 | b | ||||||||||
1931 | 2.71 | 21.75 | 19.65 | 31.03 | 36.40 | a | 51.77 | 51.48 | 47.23 | 40.20 | ----- | z | 15.55 | a | 2.29 | 29.10 | a | |||||||||
1932 | 0.32 | 13.89 | a | 22.10 | 28.27 | 35.90 | 46.10 | 54.97 | 51.58 | 36.90 | 24.65 | 14.30 | 3.26 | 27.69 | ||||||||||||
1933 | 0.87 | a | -5.33 | a | 21.23 | 25.13 | 34.00 | 46.60 | 54.30 | a | 48.00 | 43.40 | 28.81 | 14.67 | 12.03 | 26.97 | ||||||||||
1934 | 13.00 | 22.21 | 23.71 | 32.77 | 41.87 | 41.77 | 53.58 | 54.57 | a | 36.87 | 27.35 | 20.97 | 9.84 | 31.54 | ||||||||||||
1935 | 12.81 | 16.82 | 20.23 | 31.80 | 35.66 | b | 45.37 | 51.63 | a | 49.48 | 39.17 | 26.26 | 17.23 | 9.03 | 29.62 | |||||||||||
1936 | 8.26 | 17.34 | 21.87 | 27.80 | 38.23 | a | 50.13 | 54.48 | 48.00 | 34.83 | 30.81 | 16.30 | 11.97 | 30.00 | ||||||||||||
1937 | -4.58 | 11.93 | 25.26 | 35.27 | 42.57 | a | 37.00 | 46.13 | 43.71 | 35.50 | 25.93 | a | ----- | z | 17.97 | 28.79 | a | |||||||||
1938 | 15.77 | 22.25 | 28.19 | 33.63 | 39.42 | 48.17 | 50.23 | 50.06 | 44.10 | 32.23 | a | 16.83 | 14.06 | 32.91 | ||||||||||||
1939 | 12.87 | 1.57 | 23.23 | a | 33.33 | 39.74 | 43.77 | h | 50.23 | 50.60 | f | 46.80 | 29.74 | 19.90 | 15.71 | 27.31 | b | |||||||||
1940 | 15.35 | 23.00 | 26.19 | 34.13 | 40.77 | 47.40 | 52.58 | 50.16 | 45.60 | 33.32 | 22.00 | 16.58 | 33.93 | |||||||||||||
1941 | 13.81 | 22.25 | 26.97 | 33.00 | 40.26 | 43.43 | 49.71 | 50.35 | 40.53 | 36.27 | e | ----- | z | 20.30 | k | 35.66 | b | |||||||||
1942 | 6.27 | a | 8.89 | 21.39 | 34.23 | 35.70 | a | 43.31 | a | 49.90 | 48.06 | 37.93 | a | 31.10 | a | 22.97 | 16.48 | 29.69 | ||||||||
1943 | 11.97 | 17.79 | 23.40 | a | 33.93 | 35.94 | 42.43 | 50.29 | 52.60 | a | 39.39 | g | 30.13 | 19.30 | 18.19 | 30.54 | a | |||||||||
1944 | 3.13 | 18.72 | 23.19 | 29.07 | 38.52 | 42.03 | 46.90 | 45.52 | 36.97 | 31.52 | 23.97 | 11.29 | 29.24 | |||||||||||||
1945 | 15.52 | 24.18 | 23.03 | 27.33 | 38.83 | a | 41.13 | 50.42 | 51.61 | 37.80 | 32.13 | 19.83 | 10.52 | 31.03 | ||||||||||||
1946 | 8.10 | 13.18 | 27.71 | 33.90 | 38.03 | 45.63 | 53.58 | 51.87 | 41.00 | a | 33.29 | 25.03 | 20.29 | 32.63 | ||||||||||||
1947 | 6.55 | 19.68 | 26.58 | 33.13 | 40.00 | 43.40 | 50.90 | 53.45 | 44.50 | 34.78 | h | 22.30 | 15.58 | 32.37 | a | |||||||||||
1948 | 8.32 | 12.90 | 19.39 | 33.73 | 40.65 | 47.27 | 49.65 | 48.84 | 41.36 | e | 30.59 | b | 17.03 | a | 9.53 | l | 31.79 | a | ||||||||
1949 | 1.37 | a | 3.82 | 28.29 | 34.69 | a | 42.71 | 46.57 | 52.29 | 52.94 | 40.53 | 30.74 | 21.87 | 12.29 | 30.68 | |||||||||||
1950 | 6.13 | a | 15.39 | 26.13 | 32.90 | 36.35 | 42.17 | 50.03 | 45.97 | 42.87 | 32.81 | 23.57 | 18.39 | 31.06 | ||||||||||||
1951 | 6.06 | 13.64 | 22.33 | a | 33.58 | d | 40.97 | 42.97 | 51.48 | 50.68 | 37.17 | 31.61 | 18.83 | 5.77 | a | 29.59 | ||||||||||
1952 | 5.48 | 9.34 | 18.55 | 32.69 | a | 39.77 | 46.10 | a | 51.20 | f | 50.71 | 41.03 | 26.61 | 15.97 | 7.77 | 26.73 | a | |||||||||
1953 | 15.87 | 14.89 | 23.41 | b | 28.80 | 36.20 | a | 45.30 | 52.90 | 48.19 | 37.97 | 29.68 | 19.83 | a | 12.13 | 30.43 | ||||||||||
1954 | 17.74 | 22.39 | 24.90 | b | 33.27 | 40.23 | 44.10 | 55.58 | g | 46.96 | f | 43.97 | 32.33 | a | 23.50 | 7.94 | 29.04 | b | ||||||||
1955 | 6.26 | 5.61 | 19.87 | 27.57 | 37.77 | 42.00 | 48.77 | 51.74 | 37.03 | 27.48 | 16.31 | a | 15.81 | 28.02 | ||||||||||||
1956 | 19.77 | 7.76 | 18.26 | 29.60 | 37.54 | c | 42.97 | 48.90 | 44.74 | 35.57 | 29.29 | 17.17 | 8.65 | 28.35 | ||||||||||||
1957 | 13.03 | 18.54 | 26.68 | 32.77 | 37.71 | 43.87 | 49.61 | 52.06 | 37.40 | ----- | z | 21.97 | 14.84 | 31.68 | a | |||||||||||
1958 | 11.58 | 23.89 | 24.97 | 28.27 | 38.81 | 44.60 | 46.48 | 52.45 | 43.10 | 30.77 | 22.07 | ----- | z | 33.36 | a | |||||||||||
1959 | 13.13 | 18.29 | 23.48 | 30.17 | 39.23 | 44.40 | 44.55 | 45.39 | 36.53 | 28.39 | 16.30 | 12.35 | 29.35 | |||||||||||||
1960 | 11.61 | 13.79 | 24.07 | b | 28.63 | 33.42 | 40.80 | 46.87 | 44.87 | 41.87 | 29.35 | 18.90 | 9.61 | 28.65 | ||||||||||||
1961 | 4.45 | 14.96 | 23.97 | 28.70 | 39.00 | 43.90 | 50.16 | 51.81 | 38.07 | 28.97 | 19.87 | 6.97 | 29.24 | |||||||||||||
1962 | 2.42 | 19.57 | 17.65 | 29.77 | 35.74 | 40.30 | 44.67 | a | 42.77 | 39.03 | 30.13 | 21.90 | 10.20 | a | 27.85 | |||||||||||
1963 | -1.10 | 20.32 | 21.32 | 29.50 | 37.03 | 42.63 | 50.81 | 52.10 | 42.33 | 34.06 | 23.07 | 7.84 | 29.99 | |||||||||||||
1964 | 0.81 | 8.31 | 18.16 | 30.40 | 37.13 | 44.03 | 52.55 | 50.35 | 41.57 | ----- | z | 22.47 | 16.32 | 29.28 | a | |||||||||||
1965 | 17.71 | 17.57 | 21.77 | 31.93 | 37.48 | 44.07 | 52.48 | 49.52 | ----- | z | 29.84 | 27.53 | 18.61 | 31.68 | a | |||||||||||
1966 | 7.65 | 11.50 | 21.06 | 27.43 | 38.16 | 45.33 | 54.06 | 49.10 | 42.07 | 29.84 | 26.10 | 15.10 | 30.62 | |||||||||||||
1967 | 11.55 | 19.32 | 27.35 | 31.13 | 37.84 | 46.03 | 53.32 | 50.68 | 43.33 | 30.29 | 21.10 | 8.23 | 31.68 | |||||||||||||
1968 | 2.19 | 19.31 | 23.26 | 27.67 | 36.61 | 44.70 | 50.94 | 48.03 | 36.23 | 30.10 | 22.27 | 9.58 | 29.24 | |||||||||||||
1969 | 13.84 | 15.46 | 19.90 | 31.30 | 39.90 | 44.10 | 51.13 | 52.10 | 43.07 | 29.74 | 19.70 | 16.74 | 31.42 | |||||||||||||
1970 | 16.35 | 20.57 | 23.48 | 26.53 | 36.58 | 45.43 | 52.03 | 50.84 | 39.30 | 27.29 | 23.60 | 13.97 | 31.33 | |||||||||||||
1971 | 11.00 | 18.96 | 20.42 | 28.53 | 36.77 | 44.30 | 51.26 | 51.84 | 37.40 | 31.16 | 21.33 | 8.06 | 30.09 | |||||||||||||
1972 | 10.58 | 18.32 | a | 25.35 | 30.70 | 36.65 | 47.57 | 50.73 | a | 50.61 | 43.40 | 38.16 | 23.47 | 2.16 | 31.48 | |||||||||||
1973 | -0.87 | 12.29 | 25.84 | 28.90 | 37.52 | ----- | z | 49.84 | 50.58 | 39.60 | 29.74 | ----- | z | 10.29 | 28.37 | b | ||||||||||
1974 | 4.35 | 3.96 | 26.48 | 29.30 | 38.19 | 44.87 | 52.74 | 46.34 | b | 38.60 | 33.00 | 22.43 | 7.26 | 28.96 | ||||||||||||
1975 | 4.45 | 11.93 | 23.77 | 26.93 | 34.97 | 41.27 | 51.52 | 45.42 | 37.63 | 25.58 | 14.53 | 9.13 | 27.26 | |||||||||||||
1976 | 1.74 | 18.76 | 18.13 | 29.30 | 36.90 | 42.07 | 51.13 | 47.23 | 42.40 | 25.16 | 15.63 | 5.26 | 27.81 | |||||||||||||
1977 | 5.45 | 13.57 | 19.00 | 32.33 | 39.35 | 47.63 | 53.77 | 50.94 | 43.70 | 30.68 | 22.70 | 19.03 | 31.51 | |||||||||||||
1978 | 17.74 | 20.46 | 29.32 | 34.43 | 37.87 | 45.07 | 49.87 | 46.97 | 40.37 | 29.32 | 23.77 | 2.55 | 31.48 | |||||||||||||
1979 | 3.55 | 10.29 | 25.45 | 30.00 | 39.42 | 43.07 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 10.32 | 23.16 | e | |||||||
1980 | ----- | z | ----- | z | ----- | z | 28.73 | 38.97 | a | 43.23 | ----- | z | 47.90 | 39.80 | ----- | z | 20.30 | 20.58 | 34.22 | e | ||||||
1981 | 16.00 | 15.79 | 25.65 | 31.03 | 40.26 | 48.33 | 55.58 | 51.06 | 46.31 | a | 34.39 | 24.30 | 14.65 | 33.61 | ||||||||||||
1982 | 7.16 | 12.54 | 26.48 | 27.86 | a | 37.48 | 43.77 | 52.65 | 55.87 | 46.24 | a | 29.71 | 23.43 | 16.90 | 31.67 | |||||||||||
1983 | 16.77 | 22.64 | 29.00 | 28.27 | 36.39 | 45.37 | 53.19 | 56.13 | 44.90 | 33.19 | 25.10 | 14.73 | a | 33.81 | ||||||||||||
1984 | 2.68 | 12.43 | a | 25.26 | 28.80 | 40.61 | 45.57 | 53.94 | 54.52 | 43.93 | 32.13 | ----- | z | 16.97 | 32.44 | a | ||||||||||
1985 | 11.45 | 9.96 | 24.03 | 31.97 | 40.90 | 46.33 | 53.94 | 50.81 | 41.20 | 31.50 | a | 24.57 | 15.00 | 31.80 | ||||||||||||
1986 | 15.63 | a | 25.14 | 28.48 | 33.20 | 38.19 | 48.47 | 53.67 | a | 51.16 | 42.23 | 31.52 | 24.50 | 15.03 | 33.94 | |||||||||||
1987 | 12.29 | 21.04 | 22.03 | 30.47 | 39.58 | 46.73 | 50.58 | 49.74 | 40.23 | 31.58 | 22.90 | a | 13.55 | 31.73 | ||||||||||||
1988 | 4.47 | a | 11.38 | 21.19 | 32.47 | 38.58 | 50.83 | 53.10 | 51.87 | 39.67 | 33.42 | 24.63 | 11.90 | 31.13 | ||||||||||||
1989 | 0.77 | 13.68 | 26.97 | 34.80 | 39.19 | 45.03 | 53.10 | 51.68 | 42.07 | 31.37 | a | ----- | z | 12.87 | 31.96 | a | ||||||||||
1990 | ----- | z | 16.96 | 28.52 | 35.66 | a | 37.13 | 47.13 | 53.23 | 51.13 | 47.23 | 30.97 | 22.43 | 2.71 | 33.92 | a | ||||||||||
1991 | 2.17 | b | 13.36 | 25.06 | 28.50 | 37.71 | 45.27 | 50.26 | 50.48 | 41.07 | 29.53 | a | 23.63 | 13.71 | 30.06 | |||||||||||
1992 | 8.19 | 23.03 | 28.60 | a | 35.07 | a | 45.19 | 46.40 | 49.23 | 48.87 | 41.10 | 32.87 | 19.97 | 12.10 | 32.55 | |||||||||||
1993 | 17.71 | 21.86 | 26.39 | 32.53 | 40.77 | 44.60 | 48.57 | q | 47.87 | a | 37.41 | a | 33.63 | a | 18.23 | 13.45 | 30.41 | a | ||||||||
1994 | 13.74 | 19.18 | 25.52 | 33.93 | 39.25 | g | 51.80 | o | 52.16 | 53.84 | 43.40 | 32.39 | 20.28 | a | 14.60 | k | 32.71 | c | ||||||||
1995 | 19.07 | d | 24.37 | a | 26.54 | c | 31.37 | 38.45 | i | 43.45 | j | 48.97 | b | 52.23 | 42.77 | 28.10 | 22.77 | 17.13 | 31.33 | b | ||||||
1996 | 11.84 | 19.21 | 23.97 | 29.55 | j | 38.90 | 45.93 | c | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 27.97 | g | ||||
1997 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 34.12 | o | 24.19 | c | 14.32 | f | 24.19 | k |
1998 | 18.39 | 24.15 | a | 24.90 | b | 31.36 | b | 39.21 | l | 44.00 | f | 57.35 | e | 53.64 | c | 49.00 | d | 34.97 | a | 25.19 | d | 7.42 | e | 32.64 | b | |
1999 | 17.74 | d | 21.20 | c | 25.79 | c | 30.62 | d | 36.57 | j | 45.92 | e | 56.00 | h | 54.38 | e | 42.83 | f | 29.36 | c | 21.44 | e | 11.71 | g | 30.81 | d |
2000 | 18.14 | b | 24.16 | d | 27.21 | c | 33.00 | b | 42.04 | c | 48.36 | e | 54.78 | d | 54.75 | c | 43.15 | c | 32.83 | b | 14.77 | d | 11.88 | g | 35.74 | a |
2001 | 10.40 | a | 18.44 | a | 27.16 | f | 33.57 | b | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 19.67 | r | 11.81 | e | 18.56 | h |
2002 | 8.86 | b | 10.89 | i | 17.45 | i | 35.53 | m | 41.06 | o | 50.33 | x | ----- | z | ----- | z | ----- | z | 33.53 | l | 22.54 | d | 16.71 | g | 15.70 | j |
2003 | 17.25 | g | 18.57 | e | 26.67 | a | 32.00 | e | 42.04 | c | 49.39 | b | 58.55 | b | 58.28 | f | 43.31 | a | 37.08 | f | 25.42 | f | 20.27 | a | 36.35 | d |
2004 | 13.23 | a | 20.85 | b | 31.44 | f | 37.96 | c | 41.32 | i | 49.58 | k | 53.96 | d | 52.33 | j | 46.40 | o | ----- | z | ----- | z | ----- | z | 31.50 | 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 | 28.58 | l | 21.66 | a | 13.08 | f | 21.66 | k |
2007 | 4.50 | a | 20.15 | a | 25.73 | a | 31.20 | 39.10 | a | 46.03 | 57.52 | 56.32 | 45.04 | b | 32.17 | g | 20.20 | ----- | z | 34.58 | b | |||||
2008 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 23.79 | b | 25.00 | y | 23.79 | k |
2009 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 9.24 | 16.56 | 24.10 | 31.40 | 38.70 | 45.22 | 52.03 | 50.42 | 41.41 | 31.05 | 21.27 | 12.31 | 30.95 | |||||||||||||
S.D. | 5.86 | 5.61 | 3.00 | 2.69 | 2.16 | 2.58 | 2.71 | 2.94 | 3.27 | 2.64 | 3.31 | 5.02 | 1.84 | |||||||||||||
SKEW | -0.13 | -1.13 | -0.34 | 0.09 | 0.23 | -0.03 | -0.39 | -0.52 | 0.03 | 0.02 | -0.44 | -0.19 | -0.28 | |||||||||||||
MAX | 19.77 | 25.14 | 29.32 | 37.96 | 45.19 | 51.77 | 58.55 | 56.32 | 49.00 | 38.16 | 28.50 | 21.87 | 34.08 | |||||||||||||
MIN | -4.58 | -5.33 | 17.65 | 25.13 | 33.42 | 37.00 | 44.55 | 42.77 | 34.83 | 24.65 | 13.63 | 2.16 | 26.97 | |||||||||||||
YRS | 86 | 87 | 86 | 88 | 84 | 83 | 82 | 83 | 83 | 79 | 85 | 81 | 57 |