YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1871 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1872 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1873 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1874 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 47.06 | n | 54.89 | v | 53.55 | 49.33 | 45.52 | 39.57 | 38.23 | 45.24 | g | |||||
1875 | 24.61 | 34.39 | 38.94 | 43.53 | 47.42 | 51.23 | 57.97 | 55.23 | 52.27 | 50.90 | 38.90 | 42.37 | a | 44.81 | ||||||||||||
1876 | 33.23 | 38.76 | 38.61 | 42.27 | 45.94 | 53.97 | 56.16 | 52.13 | 53.17 | 50.52 | 40.90 | 33.90 | 44.96 | |||||||||||||
1877 | 35.81 | 38.61 | 42.84 | 41.57 | 45.39 | 50.10 | 55.13 | 55.48 | 49.93 | 44.94 | 41.80 | 36.52 | 44.84 | |||||||||||||
1878 | 35.52 | 39.00 | 42.71 | 41.62 | a | 45.42 | 51.03 | 53.45 | 54.29 | 49.50 | 43.77 | 40.70 | 34.32 | 44.28 | ||||||||||||
1879 | 32.16 | 37.21 | 41.68 | 44.17 | 47.58 | 51.87 | 55.32 | 55.19 | 53.80 | 46.03 | 36.87 | 34.29 | 44.68 | |||||||||||||
1880 | 37.61 | 33.48 | 34.90 | 40.80 | 44.52 | 51.33 | 54.42 | 53.97 | 50.27 | 44.61 | 36.20 | 34.45 | 43.05 | |||||||||||||
1881 | 34.58 | 40.36 | 42.06 | 47.43 | 46.48 | 52.43 | 54.00 | 55.52 | 50.53 | 43.94 | 38.40 | 38.35 | 45.34 | |||||||||||||
1882 | 35.06 | 32.75 | 37.00 | 40.77 | 47.06 | 54.33 | 55.19 | 54.84 | 50.63 | 45.74 | 37.63 | 41.90 | a | 44.41 | ||||||||||||
1883 | 32.55 | 25.75 | 41.03 | 42.10 | 48.48 | 53.53 | 57.06 | 54.23 | 52.67 | 45.94 | 42.07 | 36.87 | 44.36 | |||||||||||||
1884 | 33.29 | 29.31 | 37.81 | 45.30 | 48.68 | 54.10 | 55.84 | 57.65 | 49.27 | 44.90 | 41.40 | 25.58 | 43.59 | |||||||||||||
1885 | 31.48 | 41.57 | 42.90 | 41.50 | 48.81 | 50.40 | 57.29 | 52.74 | 51.13 | 46.16 | 40.63 | 37.77 | 45.20 | |||||||||||||
1886 | 31.74 | 39.14 | 37.45 | 42.63 | 48.35 | 53.47 | 56.39 | 55.26 | 52.20 | 44.42 | 34.57 | 40.19 | 44.65 | |||||||||||||
1887 | 36.81 | 25.71 | 40.87 | 41.97 | 48.23 | 50.47 | 54.19 | 54.87 | 49.33 | 45.10 | 38.43 | 37.90 | 43.66 | |||||||||||||
1888 | 21.97 | 35.93 | 36.32 | 44.13 | 49.68 | 54.47 | 54.74 | 56.32 | 54.73 | 48.73 | a | 38.70 | 38.81 | 44.54 | ||||||||||||
1889 | 32.16 | 35.11 | 43.74 | 43.37 | 49.74 | 52.53 | 56.39 | 52.39 | 49.27 | 48.71 | 41.17 | 34.00 | a | 44.88 | ||||||||||||
1890 | 26.97 | a | 31.89 | a | 37.87 | 41.67 | 48.81 | 52.20 | 54.39 | 54.94 | 49.97 | a | 43.29 | 38.60 | 37.61 | 43.18 | ||||||||||
1891 | 37.55 | 31.71 | 36.26 | 44.10 | 49.39 | 51.60 | 57.00 | 57.77 | 51.37 | 50.13 | 44.33 | 37.33 | a | 45.71 | ||||||||||||
1892 | 34.63 | a | 36.79 | 42.35 | 41.33 | 48.87 | 51.87 | 54.39 | 55.23 | 53.13 | 45.11 | c | 40.79 | a | 33.90 | 44.87 | ||||||||||
1893 | 27.83 | b | 31.43 | 38.87 | 40.73 | 46.26 | 49.90 | 53.87 | 55.16 | 50.63 | 42.71 | 39.87 | 39.03 | a | 43.02 | |||||||||||
1894 | 35.63 | a | 32.18 | 37.42 | 41.97 | 46.52 | 51.14 | a | 55.71 | 57.48 | 51.60 | 45.55 | 42.63 | 34.30 | a | 44.34 | ||||||||||
1895 | 32.52 | 37.11 | 37.37 | a | 41.77 | 47.48 | 51.67 | 55.55 | 53.81 | 49.10 | 46.16 | 37.43 | 36.00 | b | 43.83 | |||||||||||
1896 | 36.63 | a | 40.34 | 37.65 | 39.93 | 44.87 | 51.80 | 58.68 | 57.94 | 51.10 | 47.13 | 33.97 | 39.58 | 44.97 | ||||||||||||
1897 | 34.10 | 37.18 | 35.26 | 44.43 | 50.87 | 53.17 | 55.06 | 59.87 | 51.27 | 46.13 | 39.47 | 38.52 | 45.44 | |||||||||||||
1898 | 35.06 | 40.75 | 36.26 | 42.73 | 47.71 | 53.70 | 55.65 | 58.55 | 54.10 | 45.71 | 38.80 | 32.87 | 45.16 | |||||||||||||
1899 | 36.10 | 33.71 | 36.77 | 40.80 | 44.71 | 50.17 | 56.10 | 53.87 | 53.57 | 44.84 | 47.93 | 38.55 | 44.76 | |||||||||||||
1900 | 38.81 | 36.61 | 44.19 | 43.57 | 49.19 | 54.47 | 56.10 | 53.87 | 51.43 | 45.06 | 40.17 | 39.39 | 46.07 | |||||||||||||
1901 | 34.32 | 37.25 | 39.35 | 40.30 | 48.35 | 50.70 | 52.90 | 56.74 | 49.63 | 51.06 | 43.03 | 36.94 | 45.05 | |||||||||||||
1902 | 33.19 | 39.43 | 39.55 | 41.40 | 48.97 | 51.67 | 55.13 | 54.77 | 51.20 | 48.35 | 41.27 | 36.23 | 45.10 | |||||||||||||
1903 | 38.65 | 33.68 | 37.61 | 42.03 | 47.52 | 55.13 | 54.39 | 56.42 | 51.03 | 47.23 | 41.23 | 36.32 | 45.10 | |||||||||||||
1904 | 38.16 | 36.45 | 38.23 | 45.67 | 47.55 | 52.23 | 56.58 | 55.06 | 52.50 | 48.32 | 46.20 | 38.94 | 46.32 | |||||||||||||
1905 | 35.87 | 36.36 | 43.55 | 45.27 | 48.10 | 52.60 | 56.77 | 55.48 | 53.10 | 43.97 | 36.97 | 35.97 | a | 45.33 | ||||||||||||
1906 | 38.45 | 39.86 | 38.23 | 44.70 | 48.32 | 50.77 | 59.84 | 55.97 | 51.77 | 47.87 | 41.63 | 38.53 | a | 46.33 | ||||||||||||
1907 | 29.10 | 39.25 | 38.52 | 42.87 | 49.03 | 53.60 | 57.29 | 55.19 | 53.60 | 50.42 | 41.97 | 39.23 | 45.84 | |||||||||||||
1908 | 37.13 | 37.45 | 39.42 | 43.33 | 44.84 | 51.27 | 58.97 | 55.55 | 49.17 | 45.39 | 42.47 | 34.77 | 44.98 | |||||||||||||
1909 | 27.58 | 38.39 | 40.00 | 42.07 | 45.35 | 52.27 | 54.65 | 53.16 | 52.73 | 46.81 | 42.03 | 30.81 | 43.82 | |||||||||||||
1910 | 32.84 | 34.07 | 43.61 | 44.73 | 50.35 | 51.27 | 56.10 | 53.52 | 50.90 | 49.65 | 41.77 | 38.87 | 45.64 | |||||||||||||
1911 | 34.23 | 34.50 | 39.55 | 39.23 | 46.39 | 50.57 | 57.90 | 57.13 | 50.87 | 46.00 | 40.47 | 37.16 | 44.50 | |||||||||||||
1912 | 36.65 | 39.83 | 38.19 | 41.77 | 49.48 | 53.67 | 57.81 | 56.39 | 52.20 | 44.00 | 41.80 | 36.97 | 45.73 | |||||||||||||
1913 | 33.48 | 33.29 | 38.26 | 42.70 | 48.74 | 53.73 | 57.52 | 58.45 | 51.93 | 46.00 | 42.87 | 37.13 | 45.34 | |||||||||||||
1914 | 41.23 | 38.71 | 44.32 | 44.77 | 50.58 | 52.40 | 57.06 | 56.97 | 51.43 | 50.61 | 41.63 | 32.06 | 46.82 | |||||||||||||
1915 | 34.84 | 39.46 | 44.52 | 45.60 | 48.87 | 53.30 | 58.26 | 59.84 | 52.97 | 48.19 | 40.90 | 38.00 | 47.06 | |||||||||||||
1916 | 25.19 | 36.52 | 40.68 | 44.17 | 46.23 | 52.30 | 55.58 | 57.55 | 52.63 | 43.39 | 38.30 | 34.39 | 43.91 | |||||||||||||
1917 | 35.00 | 36.61 | 36.48 | 42.80 | 47.48 | 51.63 | 57.39 | 58.55 | 54.70 | 47.71 | 43.90 | 44.26 | 46.38 | |||||||||||||
1918 | 41.42 | 36.14 | 39.61 | 42.33 | 46.58 | 55.43 | 57.13 | 57.39 | 56.93 | 49.26 | 41.63 | 37.71 | 46.80 | |||||||||||||
1919 | 36.90 | 38.04 | 40.84 | 44.83 | 47.68 | 50.43 | 56.10 | 57.00 | 53.63 | 43.55 | 39.70 | 28.61 | 44.78 | |||||||||||||
1920 | 34.06 | 34.38 | 38.94 | 40.70 | 44.55 | 52.37 | 57.10 | 58.00 | 53.27 | 47.16 | 40.93 | 40.45 | 45.16 | |||||||||||||
1921 | 36.77 | 39.93 | 41.19 | 42.57 | 47.71 | 55.97 | 54.81 | 56.65 | 51.30 | 48.61 | 43.03 | 34.23 | 46.06 | |||||||||||||
1922 | 29.90 | 34.32 | 36.77 | 40.97 | 48.19 | 54.80 | 56.87 | 57.26 | 53.83 | 48.77 | 38.27 | 33.58 | 44.46 | |||||||||||||
1923 | 38.77 | 31.61 | 38.87 | 45.03 | 49.13 | 53.27 | 58.13 | 59.65 | 54.30 | 49.39 | 43.47 | 36.71 | 46.53 | |||||||||||||
1924 | 33.45 | 42.17 | 38.13 | 42.70 | 50.06 | 53.93 | 55.84 | 57.10 | 53.10 | 47.77 | 40.73 | 31.20 | a | 45.52 | ||||||||||||
1925 | 40.26 | 41.14 | 39.52 | 45.83 | 51.35 | 53.33 | 58.42 | 55.81 | 54.47 | 47.13 | 40.93 | 40.61 | 47.40 | |||||||||||||
1926 | 38.03 | 42.96 | 43.58 | 50.00 | 50.26 | 56.17 | 58.16 | 58.68 | 52.23 | 50.23 | 44.60 | 36.29 | 48.43 | |||||||||||||
1927 | 34.94 | 39.19 | a | 39.45 | 42.63 | 47.81 | 55.03 | 58.23 | 58.42 | 54.33 | 47.35 | 44.83 | 33.23 | 46.29 | ||||||||||||
1928 | 34.00 | 37.72 | 44.13 | 44.10 | 51.00 | 54.67 | 58.77 | 56.68 | 52.83 | 48.19 | 41.10 | 35.06 | 46.52 | |||||||||||||
1929 | 29.03 | 29.43 | 40.77 | 40.93 | 48.77 | 53.57 | 56.61 | 57.29 | 54.03 | 49.39 | 37.70 | 40.71 | 44.85 | |||||||||||||
1930 | 23.52 | 39.46 | 41.74 | 47.07 | 46.29 | 52.47 | 55.71 | 59.03 | 54.97 | 46.03 | 39.80 | 36.19 | 45.19 | |||||||||||||
1931 | 39.61 | 38.82 | 41.84 | 45.87 | 51.94 | 54.60 | 58.13 | 57.29 | 53.97 | 47.61 | 38.33 | 35.90 | 46.99 | |||||||||||||
1932 | 35.29 | 35.83 | 42.39 | 44.97 | a | 48.74 | 55.20 | 55.81 | 58.84 | 53.90 | 49.77 | 43.53 | 33.52 | 46.48 | ||||||||||||
1933 | 36.10 | 32.64 | 40.10 | 41.83 | 46.84 | 53.23 | 56.90 | 58.84 | 51.90 | 49.03 | 41.40 | 42.81 | 45.97 | |||||||||||||
1934 | 42.26 | 42.46 | 46.42 | 49.53 | 52.10 | 54.13 | 57.13 | 58.45 | 53.23 | 49.23 | 45.70 | 40.10 | 49.23 | |||||||||||||
1935 | 34.90 | 39.96 | 37.81 | 42.93 | 46.77 | 54.37 | 56.94 | 57.13 | 56.30 | 46.06 | 36.53 | 37.68 | 45.62 | |||||||||||||
1936 | 39.81 | 28.82 | a | 38.13 | 46.63 | 51.74 | 56.53 | 57.81 | 58.65 | 53.73 | 49.13 | 38.07 | 40.16 | 46.60 | ||||||||||||
1937 | 25.35 | 36.46 | 43.26 | 42.97 | 48.55 | 56.10 | 58.39 | 56.97 | 55.17 | 51.00 | 45.23 | 39.03 | 46.54 | |||||||||||||
1938 | 36.32 | 38.57 | 40.45 | 45.40 | 49.00 | 54.47 | 59.23 | 55.77 | 57.37 | 49.90 | 40.10 | 39.23 | 47.15 | |||||||||||||
1939 | 39.58 | 35.61 | 41.26 | 45.77 | 50.42 | 52.87 | 58.32 | 58.39 | 55.67 | 49.48 | 43.53 | 41.74 | 47.72 | |||||||||||||
1940 | 37.13 | 42.41 | 44.48 | 47.10 | 51.90 | 55.77 | 58.71 | 59.03 | 57.50 | 51.81 | 38.83 | 39.00 | 48.64 | |||||||||||||
1941 | 39.16 | 42.14 | 45.61 | 47.00 | 50.06 | 54.83 | 61.19 | 59.58 | 53.83 | 49.39 | 43.47 | 39.68 | 48.83 | |||||||||||||
1942 | 32.94 | 39.04 | 40.03 | 45.67 | 49.32 | 53.50 | 61.00 | 59.71 | 55.17 | 49.55 | 41.63 | 40.29 | 47.32 | |||||||||||||
1943 | 30.06 | 39.21 | 40.58 | 46.90 | 47.90 | 52.80 | 57.45 | 57.32 | 56.73 | 50.19 | 43.23 | 37.13 | 46.63 | |||||||||||||
1944 | 36.19 | 38.31 | 39.65 | 44.93 | 49.61 | 53.67 | 57.71 | 57.77 | 56.40 | 52.16 | 42.57 | 36.39 | 47.11 | |||||||||||||
1945 | 40.10 | 40.61 | 40.06 | 44.20 | 51.71 | 53.77 | 58.87 | 58.29 | 53.30 | 48.23 | 42.67 | 38.26 | 47.50 | |||||||||||||
1946 | 37.81 | 39.29 | 40.94 | 44.50 | 52.00 | 53.80 | 58.77 | 58.03 | 54.23 | 46.32 | 39.27 | 39.57 | a | 47.04 | ||||||||||||
1947 | 34.39 | 41.39 | 44.48 | 47.13 | 52.81 | 54.27 | 58.35 | 56.74 | 55.30 | 50.71 | 43.63 | 40.26 | 48.29 | |||||||||||||
1948 | 36.48 | 36.90 | 39.68 | 42.97 | 49.10 | 57.10 | 56.93 | a | 57.10 | 53.17 | 47.58 | 40.43 | 35.20 | a | 46.05 | |||||||||||
1949 | 25.29 | 35.93 | 41.94 | 45.43 | 51.45 | 53.10 | 56.68 | 58.23 | 55.60 | 43.29 | 46.07 | 38.29 | 45.94 | |||||||||||||
1950 | 23.67 | a | 36.36 | 40.39 | 42.87 | 46.84 | 54.67 | 57.53 | a | 59.68 | 53.83 | 47.74 | 42.90 | 43.10 | a | 45.80 | ||||||||||
1951 | 35.90 | 39.07 | 36.68 | 45.80 | 48.74 | 55.03 | 57.45 | 56.32 | 55.13 | 49.06 | 42.30 | 35.00 | 46.37 | |||||||||||||
1952 | 33.10 | 36.59 | 39.52 | 43.73 | 48.90 | 52.33 | 57.35 | 57.90 | 55.33 | 51.74 | 36.77 | 39.00 | 46.02 | |||||||||||||
1953 | 44.00 | 39.00 | 40.42 | 43.77 | 48.00 | 51.90 | 57.00 | 58.48 | 55.20 | 48.61 | 45.23 | 40.58 | 47.68 | |||||||||||||
1954 | 35.32 | 38.93 | 37.29 | 42.27 | 49.19 | 51.27 | 55.03 | 56.39 | 53.70 | 47.68 | 46.27 | 38.16 | 45.96 | |||||||||||||
1955 | 36.77 | 36.11 | 35.94 | 39.93 | 45.48 | 52.83 | 55.29 | 56.16 | 53.70 | 49.03 | 37.03 | 36.39 | 44.56 | |||||||||||||
1956 | 37.52 | 32.96 | a | 39.35 | 45.20 | 51.26 | 52.50 | 58.06 | 58.03 | 54.23 | 47.06 | 40.07 | 36.68 | 46.08 | ||||||||||||
1957 | 27.45 | 37.14 | 41.65 | 45.70 | 52.35 | 55.10 | 56.68 | 56.52 | 57.70 | 48.52 | 39.73 | 39.65 | 46.52 | |||||||||||||
1958 | 41.13 | 45.11 | 39.84 | 44.40 | 54.03 | 58.47 | 60.65 | 59.74 | 55.00 | 50.32 | 42.60 | 42.13 | 49.45 | |||||||||||||
1959 | 38.39 | 38.14 | 40.94 | 45.27 | 47.84 | 55.07 | 58.74 | 56.55 | 53.57 | 50.00 | 40.27 | 37.94 | 46.89 | |||||||||||||
1960 | 33.26 | 38.55 | 39.39 | 44.43 | 47.29 | 54.03 | 58.03 | 56.90 | 54.50 | 48.77 | 42.37 | 35.77 | 46.11 | |||||||||||||
1961 | 41.06 | 43.00 | 41.68 | 43.87 | 49.48 | 56.17 | 59.26 | 60.81 | 51.90 | 46.94 | 38.73 | 38.16 | 47.59 | |||||||||||||
1962 | 33.90 | 38.11 | 39.29 | 44.57 | 47.03 | 52.60 | 56.06 | 57.65 | 55.77 | 49.03 | 44.33 | 40.42 | 46.56 | |||||||||||||
1963 | 30.97 | 43.93 | 40.10 | 43.37 | 49.65 | 53.97 | 56.39 | 58.26 | 57.93 | 49.97 | 43.53 | 37.94 | 47.17 | |||||||||||||
1964 | 39.48 | 37.28 | 39.77 | 41.20 | 46.10 | 52.53 | 57.23 | 57.10 | 52.87 | 49.35 | 39.67 | 35.06 | 45.64 | |||||||||||||
1965 | 38.35 | 39.39 | 41.03 | 44.90 | 46.35 | 51.93 | 58.29 | 59.39 | 52.60 | 50.29 | 45.47 | 36.00 | 47.00 | |||||||||||||
1966 | 37.61 | 38.46 | 40.26 | 45.73 | 48.77 | 53.67 | 56.71 | 57.45 | 56.03 | 47.32 | 44.47 | 41.58 | 47.34 | |||||||||||||
1967 | 41.19 | 38.79 | 38.81 | 40.77 | 48.58 | 56.67 | 58.55 | 61.45 | 56.97 | 49.16 | 44.27 | 38.42 | 47.80 | |||||||||||||
1968 | 36.48 | 44.45 | 43.16 | 42.47 | 49.32 | 54.40 | 59.10 | 57.84 | 54.57 | 47.26 | 42.80 | 33.97 | 47.15 | |||||||||||||
1969 | 29.58 | 37.64 | 40.39 | 43.77 | 51.71 | 58.17 | 56.68 | 56.23 | 55.07 | 46.65 | 43.13 | 40.19 | 46.60 | |||||||||||||
1970 | 37.45 | 42.14 | 40.77 | 41.37 | 47.19 | 55.63 | 57.32 | 56.65 | 52.57 | 47.13 | 42.33 | 37.10 | 46.47 | |||||||||||||
1971 | 37.65 | 38.21 | 38.65 | 42.83 | 48.52 | 51.80 | 58.06 | 60.71 | 52.40 | 46.16 | 41.97 | 36.65 | 46.13 | |||||||||||||
1972 | 34.58 | 38.59 | 43.42 | 40.23 | 50.94 | 54.47 | 59.16 | 60.13 | 51.83 | 46.39 | 43.63 | 33.65 | 46.42 | |||||||||||||
1973 | 34.90 | 39.75 | 41.39 | 43.73 | 49.32 | 54.27 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 43.89 | f | ||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 34.75 | 37.34 | 40.12 | 43.57 | 48.55 | 53.34 | 56.95 | 56.93 | 53.15 | 47.62 | 41.22 | 37.29 | 45.91 | |||||||||||||
S.D. | 4.48 | 3.70 | 2.45 | 2.12 | 2.03 | 1.81 | 1.66 | 1.97 | 2.15 | 2.25 | 2.69 | 3.08 | 1.35 | |||||||||||||
SKEW | -0.78 | -0.75 | 0.25 | 0.40 | 0.17 | 0.33 | -0.00 | -0.22 | 0.06 | -0.19 | -0.17 | -0.68 | 0.21 | |||||||||||||
MAX | 44.00 | 45.11 | 46.42 | 50.00 | 54.03 | 58.47 | 61.19 | 61.45 | 57.93 | 52.16 | 47.93 | 44.26 | 49.45 | |||||||||||||
MIN | 21.97 | 25.71 | 34.90 | 39.23 | 44.52 | 49.90 | 52.90 | 52.13 | 49.10 | 42.71 | 33.97 | 25.58 | 43.02 | |||||||||||||
YRS | 99 | 99 | 99 | 99 | 99 | 99 | 98 | 99 | 99 | 99 | 99 | 99 | 98 |