YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1893 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1894 | 0.89 | d | 3.20 | c | 25.04 | c | 37.34 | a | 47.97 | b | 60.13 | 60.32 | 57.71 | 48.93 | a | 38.48 | b | 18.08 | e | 18.21 | b | 34.69 | ||||
1895 | -4.11 | d | 2.04 | a | 18.00 | c | 42.13 | 48.07 | c | 56.90 | a | 54.03 | 57.03 | b | 53.64 | b | 33.46 | c | 21.73 | d | 10.82 | c | 32.81 | |||
1896 | 8.30 | d | 14.27 | c | 12.21 | g | 37.86 | b | 53.16 | 56.69 | a | 58.13 | 58.68 | 45.87 | 35.17 | b | 10.21 | f | 17.46 | e | 38.56 | b | ||||
1897 | 0.96 | f | 7.23 | b | 13.24 | b | 33.68 | b | 45.21 | b | 54.10 | 62.35 | 54.26 | 56.04 | b | 41.52 | b | 19.88 | d | 7.56 | d | 35.91 | a | |||
1898 | 12.90 | a | 9.81 | b | 22.29 | c | 33.75 | b | 46.97 | a | 59.14 | a | 58.84 | 58.35 | 51.30 | 35.07 | b | 17.03 | a | 7.08 | e | 34.38 | ||||
1899 | 4.41 | d | -4.28 | c | 5.71 | g | 34.21 | b | 46.60 | a | 56.41 | a | 60.48 | 61.26 | 48.13 | 39.79 | b | 34.00 | 12.00 | d | 35.73 | a | ||||
1900 | 12.93 | a | -1.81 | b | 17.90 | 40.45 | a | 48.60 | a | 56.17 | 59.65 | 64.29 | 50.62 | a | 47.42 | 20.83 | 16.45 | b | 36.13 | |||||||
1901 | 8.16 | 6.57 | 22.52 | 35.47 | 46.13 | a | 57.70 | 68.10 | 59.58 | 47.73 | 40.00 | 22.50 | 5.52 | f | 37.68 | a | ||||||||||
1902 | 10.06 | 9.93 | a | 25.77 | 30.80 | 48.90 | 52.47 | 61.35 | 57.26 | 45.10 | 38.48 | 26.77 | 5.30 | a | 34.35 | |||||||||||
1903 | 7.68 | 4.88 | c | 23.74 | d | 34.77 | 48.16 | 54.17 | 60.03 | 56.48 | 47.17 | 39.55 | 22.37 | 4.61 | 33.63 | |||||||||||
1904 | 0.81 | -1.97 | 22.06 | 30.73 | 44.94 | 54.67 | 56.52 | 53.68 | 47.76 | a | 38.52 | 28.50 | 14.35 | 32.55 | ||||||||||||
1905 | 1.17 | a | -0.54 | 26.86 | b | 31.69 | a | 41.10 | a | 51.43 | 54.35 | 56.81 | 49.90 | 34.68 | 24.61 | b | 14.26 | 32.19 | ||||||||
1906 | 9.50 | c | 7.77 | b | 13.19 | d | 36.83 | 44.28 | b | 53.57 | 56.81 | 59.48 | 51.77 | 36.00 | 22.14 | b | 8.72 | b | 33.34 | |||||||
1907 | -3.86 | b | 7.88 | c | 21.45 | 25.48 | a | 35.60 | a | 54.07 | 59.26 | 54.52 | 47.27 | 34.00 | 21.97 | 13.53 | a | 30.93 | ||||||||
1908 | 7.73 | a | 6.92 | c | 19.10 | a | 33.46 | b | 43.47 | a | 52.80 | 57.90 | 54.58 | 52.79 | b | 34.10 | 25.21 | a | 10.39 | c | 33.20 | |||||
1909 | 3.86 | c | 7.07 | 19.58 | 26.90 | 41.47 | a | 55.97 | a | 59.97 | 63.39 | 48.10 | 34.00 | 22.57 | b | 0.59 | b | 31.95 | ||||||||
1910 | 3.48 | -1.93 | a | 30.70 | a | 34.82 | b | 40.00 | a | 53.40 | 59.32 | 56.26 | 47.10 | a | 39.00 | a | 18.86 | a | 9.00 | c | 32.50 | |||||
1911 | -1.79 | c | 10.23 | b | 20.34 | b | 31.59 | a | 48.06 | 59.62 | a | 58.42 | 55.45 | 49.89 | b | 36.26 | 12.22 | c | 14.42 | 32.89 | ||||||
1912 | -12.73 | a | 5.33 | b | 11.63 | a | 35.31 | a | 46.48 | 52.03 | 59.26 | 55.58 | 46.43 | b | 34.81 | 25.03 | a | 9.71 | c | 30.74 | ||||||
1913 | -0.41 | d | 0.27 | b | 11.96 | d | 34.21 | b | 44.10 | 57.57 | 58.81 | 60.97 | 49.59 | a | 31.41 | b | 27.59 | c | 16.64 | c | 32.73 | |||||
1914 | 9.46 | c | -4.59 | f | 19.27 | a | 31.11 | b | 46.53 | a | 56.14 | a | 62.16 | 56.52 | b | 48.45 | a | 40.67 | a | 22.90 | a | -2.25 | c | 35.54 | a | |
1915 | 1.03 | b | 13.76 | c | 16.07 | a | 40.53 | 40.90 | a | 49.76 | a | 55.87 | a | 51.79 | b | 48.38 | a | 38.57 | a | 24.70 | 10.76 | b | 32.68 | |||
1916 | -5.73 | e | -0.76 | 15.31 | b | 30.90 | 43.83 | a | 50.57 | 66.23 | 57.42 | 45.90 | 31.52 | 20.28 | a | -2.67 | d | 29.40 | ||||||||
1917 | -5.25 | c | -9.62 | b | 14.68 | 29.70 | 40.17 | b | 51.27 | 60.29 | 53.71 | 45.45 | a | 24.53 | a | 25.19 | c | -5.80 | f | 30.01 | a | |||||
1918 | -9.96 | e | 1.22 | e | 23.97 | b | 28.00 | a | 44.40 | a | 53.90 | 56.71 | 58.26 | 42.34 | a | 39.60 | a | 26.86 | b | 19.93 | b | 32.10 | ||||
1919 | 15.38 | b | 7.75 | d | 19.10 | b | 36.13 | 46.61 | 60.70 | 64.84 | 59.29 | 54.80 | 35.55 | 23.46 | d | 5.80 | a | 35.78 | ||||||||
1920 | 5.29 | 12.07 | 21.53 | a | 28.87 | 46.29 | 57.55 | a | 60.13 | 57.03 | 53.53 | 44.52 | 25.70 | 15.16 | 35.64 | |||||||||||
1921 | 16.26 | 16.81 | a | 26.26 | 37.97 | 48.97 | 62.47 | 64.45 | 58.43 | a | 52.70 | 40.45 | 18.30 | 14.87 | a | 38.16 | ||||||||||
1922 | 4.70 | a | 3.32 | 24.77 | 35.57 | 50.42 | 58.37 | 58.83 | a | 61.00 | a | 53.77 | 41.00 | 30.87 | 7.90 | 35.88 | ||||||||||
1923 | 10.45 | 3.29 | 11.94 | 32.80 | 45.71 | 59.57 | 64.03 | 56.06 | 51.87 | 35.84 | 27.97 | 19.52 | 34.92 | |||||||||||||
1924 | -2.39 | 12.48 | 20.13 | 33.60 | 37.37 | a | 52.93 | 56.58 | 57.10 | 46.07 | 43.06 | 23.47 | -0.45 | 31.66 | ||||||||||||
1925 | 2.74 | 13.14 | 23.68 | 40.40 | 41.35 | 54.70 | 57.97 | 58.26 | 53.72 | a | 26.87 | 22.43 | 9.71 | 33.75 | ||||||||||||
1926 | 7.06 | 17.30 | a | 17.00 | 29.30 | 48.90 | 50.63 | 60.13 | 58.42 | 47.63 | 36.26 | 18.21 | a | 5.06 | 32.99 | |||||||||||
1927 | 8.43 | a | 16.14 | 26.90 | a | 36.87 | 45.20 | a | 54.50 | 58.65 | 54.74 | 53.83 | 41.60 | a | 22.37 | 0.58 | 34.98 | |||||||||
1928 | 11.13 | 14.55 | 23.65 | 27.63 | 47.87 | 51.73 | 61.10 | 58.35 | 47.10 | 39.74 | 26.37 | 17.26 | 35.54 | |||||||||||||
1929 | -5.87 | -1.57 | 24.26 | 35.47 | 42.19 | 53.07 | 61.10 | a | 58.90 | 49.27 | 40.35 | 20.90 | 12.71 | 32.56 | ||||||||||||
1930 | -2.13 | 22.81 | a | 22.58 | 37.47 | 47.65 | 56.17 | 64.10 | b | 62.48 | 50.07 | 38.23 | 26.83 | 17.23 | 36.96 | |||||||||||
1931 | 17.32 | 22.85 | a | 23.77 | 37.47 | 43.57 | a | 63.03 | 62.94 | 59.68 | 57.30 | 43.74 | 29.17 | 22.16 | 40.25 | |||||||||||
1932 | 7.30 | a | 11.86 | 14.33 | a | 36.77 | 48.00 | 60.07 | 62.61 | 60.32 | 47.87 | 36.94 | 20.59 | a | 8.10 | 34.56 | ||||||||||
1933 | 17.65 | 3.93 | 22.13 | 33.70 | 46.13 | 62.03 | 62.65 | 56.13 | 54.62 | a | 35.77 | 22.20 | 8.48 | 35.45 | ||||||||||||
1934 | 11.90 | 11.75 | 18.19 | 34.53 | 54.74 | 58.27 | 62.71 | 56.77 | 44.80 | 41.48 | 30.20 | 10.47 | a | 36.32 | ||||||||||||
1935 | 5.77 | 20.07 | a | 27.06 | 33.90 | 43.87 | a | 54.37 | 66.77 | 58.97 | 49.20 | 35.32 | 19.31 | a | 10.87 | 35.46 | ||||||||||
1936 | -4.55 | -11.45 | 22.70 | a | 29.83 | 51.32 | 53.86 | a | 64.77 | 60.58 | 52.67 | 34.23 | 22.07 | b | 15.58 | 32.64 | ||||||||||
1937 | -5.23 | 5.57 | 20.06 | 35.07 | 48.10 | 54.37 | 61.32 | 64.35 | 50.93 | 35.97 | 21.27 | 7.74 | 33.29 | |||||||||||||
1938 | 5.29 | 10.79 | 26.77 | a | 36.87 | 45.48 | 56.07 | 62.39 | 61.90 | 53.47 | 44.32 | 22.90 | 14.16 | 36.70 | ||||||||||||
1939 | 15.42 | 1.93 | 21.35 | 32.73 | 51.55 | 58.40 | 62.60 | a | 57.97 | 52.47 | 36.42 | 27.30 | 21.03 | 36.60 | ||||||||||||
1940 | -1.07 | a | 12.90 | 19.77 | 31.22 | c | 42.87 | 56.03 | 61.71 | 58.13 | 52.68 | b | 41.19 | 19.12 | d | 16.48 | b | 34.25 | ||||||||
1941 | 8.93 | d | 6.65 | b | 19.55 | b | 39.72 | a | 51.39 | 57.69 | a | 61.10 | 60.29 | 50.59 | a | 39.17 | a | 25.46 | b | 16.68 | f | 38.23 | a | |||
1942 | 9.37 | a | 10.65 | b | 24.20 | a | 35.67 | 43.59 | b | 56.00 | 58.55 | 57.97 | 45.52 | a | 36.10 | 22.10 | a | 4.62 | b | 33.69 | ||||||
1943 | -4.44 | d | 6.92 | d | 11.80 | a | 31.47 | 40.68 | 57.43 | b | 61.39 | 60.39 | 44.33 | 34.69 | b | 21.82 | b | 12.93 | d | 31.62 | ||||||
1944 | 17.30 | a | 10.48 | b | 15.10 | 30.83 | a | 50.37 | a | 57.57 | b | 57.23 | 58.07 | a | 49.52 | a | 37.71 | 28.88 | d | 8.88 | f | 37.55 | a | |||
1945 | 10.83 | a | 10.38 | b | 26.13 | a | 31.10 | a | 38.43 | a | 50.59 | a | 58.32 | 57.37 | a | 48.07 | b | 35.65 | 19.78 | c | 3.35 | e | 32.50 | |||
1946 | 4.17 | b | 7.04 | a | 30.15 | d | 37.07 | 41.27 | a | 55.36 | b | 61.16 | 55.68 | 46.63 | c | 37.48 | 22.36 | b | 13.68 | c | 34.34 | |||||
1947 | 10.22 | d | 3.67 | a | 18.75 | c | 32.66 | a | 41.61 | 52.97 | a | 59.87 | 64.77 | 50.24 | a | 45.47 | a | 18.63 | c | 8.97 | b | 33.99 | ||||
1948 | 1.00 | d | 4.23 | c | 15.90 | a | 36.20 | 46.29 | 54.97 | a | 62.20 | a | 60.42 | 54.13 | 37.39 | 25.46 | b | 9.00 | b | 33.93 | ||||||
1949 | 1.26 | 1.85 | a | 21.65 | 31.97 | 48.42 | 57.27 | 61.71 | 59.74 | 44.50 | 37.90 | 27.13 | 10.55 | 33.66 | ||||||||||||
1950 | -4.55 | 8.32 | 15.90 | 27.37 | 43.06 | 55.41 | a | 57.65 | 54.90 | 49.43 | 41.16 | 17.87 | 5.48 | 31.00 | ||||||||||||
1951 | 1.81 | 10.54 | 9.10 | 32.30 | 49.23 | a | 53.17 | 59.84 | 58.42 | 45.07 | 37.23 | 16.87 | 7.84 | 31.78 | ||||||||||||
1952 | 1.58 | 17.69 | 16.48 | 36.70 | 46.81 | 58.80 | 61.13 | 58.10 | 49.67 | 31.10 | a | 24.23 | 14.68 | 34.75 | ||||||||||||
1953 | 7.45 | 13.25 | 22.00 | 31.20 | 45.45 | 59.10 | 61.32 | 62.00 | 49.38 | a | 42.35 | 28.17 | 11.87 | 36.13 | ||||||||||||
1954 | -1.60 | a | 23.07 | 18.35 | 33.97 | 40.52 | 58.87 | 62.45 | 59.32 | 51.00 | 38.90 | 26.73 | 15.23 | a | 35.57 | |||||||||||
1955 | 7.77 | 1.39 | 14.65 | 39.27 | 49.00 | 54.07 | 64.87 | 62.84 | 47.93 | 36.48 | 12.07 | 0.81 | 32.60 | |||||||||||||
1956 | 1.84 | 0.55 | 13.90 | 27.97 | 45.39 | 59.73 | 58.10 | 58.23 | 45.20 | 40.83 | a | 21.70 | 14.58 | 32.33 | ||||||||||||
1957 | -2.84 | 10.44 | a | 18.39 | 31.57 | 42.71 | 53.90 | 64.61 | 57.39 | 47.00 | 38.48 | 25.00 | 18.39 | 33.75 | ||||||||||||
1958 | 13.42 | 3.21 | 20.74 | 33.07 | 44.32 | 49.27 | 57.52 | 57.58 | 48.60 | 37.81 | 23.13 | 5.16 | 32.82 | |||||||||||||
1959 | 0.35 | 1.43 | 21.13 | 31.70 | 47.61 | 57.70 | 57.19 | 61.42 | 48.57 | 32.32 | 13.30 | 20.90 | 32.80 | |||||||||||||
1960 | 3.26 | 5.86 | 4.84 | 32.67 | 43.13 | 52.43 | 59.55 | 59.26 | 51.23 | 37.84 | 25.43 | 9.39 | 32.07 | |||||||||||||
1961 | 3.13 | 12.07 | 25.35 | 29.17 | 42.42 | 55.23 | 58.39 | 60.52 | 48.07 | 37.74 | 23.37 | 7.10 | 33.55 | |||||||||||||
1962 | -0.42 | 8.00 | 14.74 | 31.87 | 51.58 | 55.70 | 59.06 | 57.32 | 46.23 | 40.48 | 28.47 | 11.71 | 33.73 | |||||||||||||
1963 | -3.71 | 4.75 | 25.16 | 36.63 | 46.03 | 58.90 | 62.26 | 58.58 | 52.33 | 47.00 | 28.50 | 2.13 | 34.88 | |||||||||||||
1964 | 11.26 | 11.79 | 11.45 | 34.67 | 48.97 | 55.97 | 63.48 | 54.90 | 47.87 | 35.55 | 24.67 | 4.03 | 33.72 | |||||||||||||
1965 | -0.55 | 1.21 | 8.61 | 33.13 | 49.03 | 55.97 | 59.97 | 56.97 | 43.23 | 38.55 | 21.63 | 20.10 | 32.32 | |||||||||||||
1966 | -5.13 | 4.89 | 24.74 | 30.20 | 39.77 | 55.63 | 63.47 | a | 54.97 | a | 49.07 | 35.55 | 18.90 | 10.06 | 31.84 | |||||||||||
1967 | 5.90 | 0.89 | 21.26 | 32.73 | 39.19 | 55.10 | 57.74 | 54.06 | 47.13 | 34.58 | 21.23 | 12.71 | 31.88 | |||||||||||||
1968 | 4.84 | 6.00 | 23.00 | 34.33 | 39.71 | 56.07 | 59.16 | 57.74 | 48.20 | 38.74 | 25.73 | 9.10 | 33.55 | |||||||||||||
1969 | -3.06 | 10.39 | 8.65 | 35.13 | 46.84 | 49.30 | 61.48 | 59.68 | 48.83 | 34.13 | 24.13 | 12.77 | 32.36 | |||||||||||||
1970 | -6.06 | 4.61 | 15.10 | 32.90 | 45.48 | 56.93 | 60.58 | 58.97 | 49.37 | 36.58 | 22.47 | 5.13 | 31.84 | |||||||||||||
1971 | -1.23 | 6.82 | 18.68 | 33.53 | 42.81 | 59.80 | 57.29 | 56.97 | 49.17 | 40.81 | ----- | z | ----- | z | 36.46 | b | ||||||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 3.79 | 7.21 | 19.58 | 33.65 | 45.39 | 55.72 | 60.46 | 58.24 | 49.26 | 37.71 | 23.13 | 10.68 | 33.72 | |||||||||||||
S.D. | 6.92 | 6.76 | 5.36 | 3.45 | 3.81 | 3.09 | 2.78 | 2.63 | 3.12 | 3.95 | 4.13 | 5.81 | 1.87 | |||||||||||||
SKEW | 0.07 | 0.04 | -0.39 | 0.08 | -0.12 | 0.04 | 0.25 | 0.26 | 0.27 | -0.27 | -0.25 | -0.19 | 0.72 | |||||||||||||
MAX | 17.65 | 23.07 | 30.70 | 42.13 | 54.74 | 63.03 | 68.10 | 64.77 | 57.30 | 47.42 | 34.00 | 22.16 | 40.25 | |||||||||||||
MIN | -12.73 | -11.45 | 4.84 | 25.48 | 35.60 | 49.27 | 54.03 | 51.79 | 42.34 | 24.53 | 12.07 | -2.67 | 29.40 | |||||||||||||
YRS | 77 | 77 | 76 | 78 | 78 | 78 | 78 | 78 | 78 | 78 | 76 | 73 | 69 |