YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1894 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 49.19 | g | 42.08 | 33.11 | 37.60 | j | ||
1895 | 26.35 | 27.88 | 38.81 | 47.40 | 54.50 | 59.69 | f | 65.92 | 66.85 | 61.73 | b | ----- | z | 34.53 | 24.79 | 44.88 | b | |||||||||
1896 | 32.98 | a | 33.53 | 40.35 | 45.70 | 54.90 | ----- | z | 69.34 | 67.69 | 59.32 | 49.35 | 36.37 | c | 32.18 | 47.43 | a | |||||||||
1897 | 27.02 | 26.52 | 33.84 | 46.70 | 56.82 | 60.95 | 66.19 | 67.08 | 61.30 | 47.73 | 39.87 | 27.40 | 46.78 | |||||||||||||
1898 | 24.18 | 34.98 | 35.97 | 49.80 | 52.03 | 62.90 | 68.94 | 69.03 | 59.08 | 47.02 | 35.00 | 19.23 | 46.51 | |||||||||||||
1899 | 19.65 | 26.36 | 38.63 | 48.35 | 52.60 | 63.03 | 69.68 | 66.03 | 61.60 | f | 48.18 | 41.35 | 27.92 | 45.62 | a | |||||||||||
1900 | 32.81 | 33.39 | 44.16 | 43.85 | 56.47 | 64.62 | 66.69 | 62.65 | 54.43 | 46.52 | 35.03 | 25.98 | 47.22 | |||||||||||||
1901 | 24.11 | 27.43 | 32.69 | 40.57 | 48.65 | 53.09 | a | 70.00 | p | 69.82 | 59.17 | 51.66 | 41.78 | 29.71 | 43.52 | a | ||||||||||
1902 | 30.69 | 32.64 | 34.15 | 48.35 | 53.91 | i | 66.41 | b | 66.40 | 68.10 | 59.93 | 50.21 | 38.30 | 26.40 | 47.42 | a | ||||||||||
1903 | 24.16 | 24.09 | 36.97 | 45.30 | 52.73 | 61.68 | 67.57 | i | 67.87 | 57.58 | 50.77 | 40.63 | 28.40 | 44.56 | a | |||||||||||
1904 | 24.50 | 36.84 | 41.02 | 48.45 | 54.66 | 60.58 | 66.21 | 66.84 | 60.17 | 47.02 | 38.87 | 27.73 | 47.74 | |||||||||||||
1905 | 24.89 | 28.20 | 39.97 | 44.67 | 50.50 | 61.93 | 65.61 | h | 67.35 | 59.18 | 46.94 | 37.90 | 23.73 | 44.11 | a | |||||||||||
1906 | 23.91 | h | 34.32 | 37.23 | 45.08 | 53.21 | 60.80 | 65.58 | 64.58 | 57.38 | 47.74 | 37.53 | 34.03 | 48.86 | a | |||||||||||
1907 | 28.95 | 38.68 | 40.77 | 46.58 | 49.05 | 57.68 | 67.39 | 65.45 | 57.97 | a | 50.63 | 36.80 | 27.79 | 47.31 | ||||||||||||
1908 | 26.15 | 28.26 | h | 38.98 | 46.53 | 48.60 | 59.10 | 67.40 | 64.94 | d | 59.00 | a | 49.02 | j | 35.60 | 24.65 | 47.10 | b | ||||||||
1909 | 29.71 | 27.27 | 34.87 | d | 42.83 | 49.93 | d | 63.62 | d | 68.94 | 66.79 | 57.43 | 50.90 | f | 36.87 | 16.69 | 44.99 | a | ||||||||
1910 | 23.06 | g | 27.07 | 43.21 | j | 47.68 | 55.55 | 63.70 | h | 69.32 | 67.26 | 62.30 | 49.10 | g | 40.12 | b | 33.17 | h | 52.76 | e | ||||||
1911 | 31.23 | a | 30.38 | 40.35 | h | 45.81 | c | 54.08 | e | 61.02 | 64.69 | 64.97 | a | 60.34 | n | 45.90 | 33.79 | a | 21.13 | h | 47.99 | c | ||||
1912 | 27.04 | r | 31.90 | 36.48 | 41.42 | 52.39 | 60.67 | a | 65.60 | 64.50 | 53.91 | a | 45.52 | 37.57 | 23.34 | 46.66 | a | |||||||||
1913 | 21.66 | 27.61 | 31.82 | 45.47 | 55.18 | 61.05 | 67.12 | a | 67.90 | 56.22 | 45.92 | 40.07 | 22.18 | 45.18 | ||||||||||||
1914 | 25.15 | 26.44 | c | 39.88 | a | 47.30 | 54.65 | 61.22 | 66.52 | 65.58 | 60.50 | e | 48.47 | a | 41.13 | 24.31 | 46.76 | |||||||||
1915 | 21.19 | 27.75 | 35.24 | 47.37 | 50.52 | a | 59.15 | 65.24 | b | 64.92 | 57.25 | f | 49.34 | 37.30 | 29.35 | 44.31 | a | |||||||||
1916 | 25.74 | 30.64 | 41.79 | b | 46.77 | d | 52.08 | 60.73 | 67.17 | a | 64.66 | 57.27 | f | 46.16 | f | 35.97 | 24.63 | 45.02 | b | |||||||
1917 | 20.06 | d | 26.27 | 29.74 | 42.17 | a | 46.98 | e | 62.22 | c | 69.05 | 64.98 | 60.83 | a | 49.56 | 41.22 | 33.55 | 45.55 | ||||||||
1918 | 22.40 | 31.17 | b | 40.54 | e | 44.02 | 51.15 | 67.22 | e | 66.44 | 65.04 | d | 58.22 | 50.63 | 33.12 | 23.95 | 46.16 | |||||||||
1919 | 18.84 | 24.64 | 34.24 | 46.80 | 55.27 | 61.73 | d | 67.27 | g | 67.30 | d | 60.62 | 43.55 | 36.53 | 27.92 | 43.40 | a | |||||||||
1920 | 27.79 | 34.24 | 35.94 | 39.65 | 53.29 | 59.85 | 66.45 | 63.10 | 56.62 | 45.35 | 36.83 | f | 23.17 | h | 48.23 | b | ||||||||||
1921 | 29.18 | 32.64 | 40.95 | 42.00 | 52.26 | 60.57 | 66.56 | 64.45 | 58.35 | 50.22 | f | 39.48 | 32.34 | b | 47.16 | a | ||||||||||
1922 | 21.60 | 27.68 | 33.09 | d | 41.63 | 52.39 | 62.75 | ----- | z | 68.18 | 61.37 | ----- | z | 33.45 | j | 29.34 | 44.22 | c | ||||||||
1923 | 29.76 | 28.61 | 33.61 | 43.17 | 53.57 | d | 58.90 | 68.31 | 64.34 | 55.00 | 45.95 | b | 37.22 | e | 28.63 | 45.59 | ||||||||||
1924 | 19.92 | 34.66 | 32.98 | a | 44.52 | 54.11 | 62.92 | 67.62 | c | 64.81 | 58.30 | 48.08 | 39.73 | 21.82 | 45.79 | |||||||||||
1925 | 18.74 | 31.39 | 40.09 | i | 47.65 | 56.52 | 60.67 | 67.96 | f | 62.74 | 56.80 | 45.24 | 31.97 | 24.89 | 43.66 | b | ||||||||||
1926 | 20.21 | 32.12 | 37.76 | b | 43.75 | 51.86 | f | 59.47 | 61.18 | 63.71 | 57.48 | e | 46.47 | 33.28 | 21.69 | 43.37 | a | |||||||||
1927 | 28.32 | f | 31.93 | 35.32 | 43.73 | 50.69 | d | 57.00 | 62.68 | 60.58 | a | 53.70 | h | 44.94 | e | 35.27 | 18.92 | 44.11 | b | |||||||
1928 | 22.18 | 29.03 | 37.40 | e | 44.50 | j | 51.75 | g | 56.83 | 62.10 | 60.73 | 56.60 | 46.03 | 31.38 | 19.76 | b | 42.20 | b | ||||||||
1929 | 17.69 | d | 20.42 | c | 33.92 | 40.13 | 49.10 | 58.57 | 70.29 | 66.55 | 58.03 | 49.52 | 34.55 | h | 32.64 | i | 46.42 | b | ||||||||
1930 | 19.55 | i | 32.64 | 37.10 | 50.88 | 50.80 | a | 63.53 | 68.13 | 67.05 | 58.33 | 47.45 | 33.79 | a | 26.89 | 48.78 | a | |||||||||
1931 | 27.79 | 35.80 | 36.84 | 46.97 | 52.74 | 64.25 | 70.18 | 67.23 | 61.60 | 53.02 | i | 34.43 | 20.77 | 47.15 | a | |||||||||||
1932 | 18.31 | 33.64 | 37.47 | 45.58 | 53.16 | 60.30 | 68.87 | 67.53 | a | 60.02 | 48.39 | 39.22 | 21.56 | 46.17 | ||||||||||||
1933 | 21.42 | 19.09 | 38.94 | 41.02 | 48.90 | 63.17 | 69.40 | a | 66.60 | 62.45 | a | 52.26 | 40.08 | 31.47 | 46.23 | |||||||||||
1934 | 29.98 | i | 35.26 | g | 44.23 | 49.96 | c | 58.22 | a | 60.82 | 68.97 | 68.15 | 56.14 | h | 50.37 | 35.70 | 27.34 | 51.53 | c | |||||||
1935 | 24.74 | b | 30.00 | 33.52 | 42.33 | 48.03 | 60.58 | 64.89 | 64.50 | 56.42 | 44.29 | 31.98 | 24.05 | 43.78 | ||||||||||||
1936 | 22.82 | 27.79 | 37.31 | b | 44.22 | 53.45 | 62.85 | 65.32 | 65.10 | 59.25 | 48.73 | a | 39.05 | 30.84 | 46.39 | |||||||||||
1937 | 14.87 | a | 25.00 | 34.68 | 43.27 | 54.66 | 59.35 | 66.24 | 66.87 | 59.73 | 48.40 | 37.78 | 28.56 | 44.95 | ||||||||||||
1938 | 26.08 | 30.66 | 35.48 | 43.95 | 49.58 | 60.50 | 63.94 | 66.27 | 59.38 | 48.03 | 29.43 | 29.06 | 45.20 | |||||||||||||
1939 | 25.13 | 16.64 | 36.98 | 47.55 | 53.39 | 60.00 | 65.69 | 64.56 | 60.00 | 45.02 | 38.00 | 29.63 | 45.22 | |||||||||||||
1940 | 22.27 | 28.03 | 38.50 | 44.83 | 53.97 | 62.98 | 68.23 | 65.55 | 59.22 | 49.05 | 34.13 | 27.55 | 46.19 | |||||||||||||
1941 | 27.94 | d | 34.39 | 37.73 | 41.40 | 53.81 | 57.55 | 65.73 | 64.61 | 55.23 | 46.58 | 36.97 | 28.69 | 45.89 | ||||||||||||
1942 | 24.85 | 25.86 | 32.98 | 46.07 | 49.85 | 58.20 | 65.90 | 64.77 | 57.43 | 47.74 | h | 37.20 | 29.73 | 44.80 | a | |||||||||||
1943 | 25.66 | 30.38 | 36.52 | 49.40 | 51.19 | d | 58.73 | 66.66 | 67.58 | 58.75 | 47.03 | 36.53 | 28.60 | 46.42 | ||||||||||||
1944 | 22.68 | a | 28.52 | 33.16 | 40.18 | 51.44 | 56.83 | 64.87 | 64.58 | 57.67 | 50.32 | 34.72 | 27.32 | 44.36 | ||||||||||||
1945 | 23.32 | 31.70 | 34.31 | 40.67 | 50.85 | 55.57 | 66.81 | 67.39 | c | 57.33 | 49.74 | 34.58 | 20.89 | i | 46.57 | a | ||||||||||
1946 | 23.08 | 29.54 | 38.82 | a | 50.35 | 50.26 | 61.73 | 68.35 | 65.92 | 58.98 | 44.60 | 35.58 | 32.61 | 46.65 | ||||||||||||
1947 | 22.23 | 34.70 | 38.11 | 43.40 | 54.42 | 57.48 | 68.24 | 66.26 | 61.07 | 49.77 | 31.10 | 26.35 | e | 46.09 | ||||||||||||
1948 | 27.56 | 29.03 | 31.03 | a | 46.87 | 53.68 | 59.12 | 66.21 | b | 65.84 | 60.07 | 48.26 | 31.47 | 26.95 | 45.51 | |||||||||||
1949 | 21.26 | 22.07 | 36.74 | 46.92 | 51.81 | 59.75 | 67.35 | 64.44 | 60.05 | 45.97 | 41.23 | 26.15 | 45.31 | |||||||||||||
1950 | 25.07 | b | 34.98 | 37.06 | 46.30 | 49.98 | 59.67 | 65.40 | 63.35 | 55.87 | 53.52 | 39.13 | 34.13 | 47.04 | ||||||||||||
1951 | 27.45 | 31.27 | 36.82 | 45.27 | 53.53 | 58.20 | 69.11 | 65.68 | 57.30 | 46.82 | 33.95 | 22.55 | 45.66 | |||||||||||||
1952 | 25.50 | 27.31 | 31.97 | 47.00 | 53.32 | 61.07 | 66.42 | 67.34 | 60.28 | 50.90 | 33.07 | c | 26.50 | 45.89 | ||||||||||||
1953 | 31.42 | 31.09 | 39.61 | 43.77 | 49.05 | 62.92 | 68.27 | 65.08 | 59.05 | 48.25 | e | 39.98 | 25.26 | 46.98 | ||||||||||||
1954 | 29.81 | 38.07 | 36.42 | a | 49.18 | 55.34 | 61.37 | 70.21 | 65.52 | 59.22 | 51.60 | 41.08 | 28.93 | b | 48.89 | |||||||||||
1955 | 23.97 | a | 24.44 | b | 37.10 | 42.57 | 51.48 | a | 59.36 | a | 65.06 | 67.60 | 59.23 | 50.68 | 36.27 | 29.72 | a | 45.62 | ||||||||
1956 | 33.85 | 27.41 | 38.15 | 45.28 | 55.03 | 64.15 | 66.74 | 64.05 | 60.82 | 49.00 | a | 33.33 | 27.94 | 47.15 | ||||||||||||
1957 | 29.29 | b | 36.48 | 39.37 | 43.28 | 50.39 | 61.37 | 66.94 | 66.23 | 57.73 | 48.32 | 33.27 | 30.85 | 46.96 | ||||||||||||
1958 | 28.29 | b | 35.27 | 34.39 | 43.18 | 56.76 | 62.87 | 65.69 | 67.87 | 59.27 | 49.58 | 38.45 | 34.03 | 47.97 | ||||||||||||
1959 | 29.37 | 30.25 | 37.55 | 46.90 | a | 53.40 | 64.12 | 67.46 | g | 65.97 | 57.25 | 47.60 | 36.80 | 31.32 | 45.50 | a | ||||||||||
1960 | 21.89 | 25.07 | 39.50 | 46.02 | 52.39 | 63.17 | 67.65 | 67.55 | 62.13 | 48.37 | 38.31 | a | 28.15 | 46.68 | ||||||||||||
1961 | 27.10 | 33.70 | 38.73 | 44.82 | 54.29 | 63.27 | 67.24 | 67.06 | 55.08 | 48.15 | a | 35.98 | 23.56 | 46.58 | ||||||||||||
1962 | 25.39 | 33.57 | 34.44 | 49.35 | 52.65 | 60.87 | 67.31 | 66.21 | 60.37 | 50.60 | 40.90 | 31.48 | 47.76 | |||||||||||||
1963 | 19.16 | 34.52 | 37.82 | 45.53 | 57.21 | 59.92 | 69.82 | 67.11 | 62.30 | 53.27 | 38.75 | 27.92 | a | 47.78 | ||||||||||||
1964 | 24.73 | 26.67 | 33.39 | 42.87 | 53.48 | 59.73 | 69.50 | 65.21 | 58.32 | 51.16 | 36.10 | 27.13 | 45.69 | |||||||||||||
1965 | 29.52 | 29.46 | 35.03 | 44.80 | 51.87 | a | 58.65 | 68.66 | 65.05 | 56.02 | 50.92 | 40.92 | 30.78 | b | 46.81 | |||||||||||
1966 | 23.19 | 25.64 | 39.66 | 47.23 | 56.10 | a | 61.68 | 70.60 | 67.11 | 60.00 | 49.40 | 41.23 | 26.95 | a | 47.40 | |||||||||||
1967 | 23.79 | 33.27 | 42.61 | 43.65 | 52.60 | 59.08 | 69.69 | 64.52 | 59.25 | 49.21 | 39.80 | 22.48 | 46.66 | |||||||||||||
1968 | 24.50 | 33.91 | 38.81 | 42.30 | 51.68 | 61.70 | 67.34 | 62.10 | 56.15 | 48.58 | 35.92 | 23.50 | 45.54 | |||||||||||||
1969 | 28.37 | 28.54 | a | 33.06 | 47.15 | 55.13 | 58.45 | 68.65 | 68.50 | 59.77 | 44.37 | 36.25 | 31.18 | a | 46.62 | |||||||||||
1970 | 27.08 | a | 36.23 | 34.95 | 40.57 | 53.45 | 59.55 | 68.66 | 68.48 | 56.08 | 44.30 | a | 37.13 | 27.42 | 46.16 | |||||||||||
1971 | 24.32 | c | 31.36 | 38.55 | a | 44.78 | c | 51.13 | 61.55 | 69.17 | g | 67.02 | e | 55.85 | 47.29 | b | 35.93 | 25.16 | b | 43.90 | a | |||||
1972 | 27.83 | e | 34.98 | 43.92 | a | 46.52 | 54.27 | 62.63 | d | 68.97 | 66.77 | g | 58.38 | b | 51.18 | f | 32.25 | f | 23.20 | a | 46.74 | c | ||||
1973 | 21.72 | b | 29.69 | d | 35.05 | b | 41.62 | e | 52.38 | a | 60.62 | 63.76 | n | 65.92 | 55.38 | b | 48.58 | 37.80 | 28.38 | c | 43.38 | a | ||||
1974 | 23.61 | c | 25.38 | h | 42.11 | c | 44.65 | 56.81 | b | 64.02 | a | 67.22 | h | 63.50 | 59.24 | e | 49.15 | e | 37.15 | c | 26.19 | b | 46.64 | b | ||
1975 | 21.34 | 27.44 | b | 35.06 | 40.23 | f | 50.48 | 59.55 | 68.08 | 65.50 | b | 58.50 | 48.35 | a | 39.05 | i | 26.48 | 46.08 | b | |||||||
1976 | 25.23 | 34.93 | a | 37.52 | a | 46.05 | 54.56 | 61.75 | 69.13 | 65.02 | 58.86 | a | 46.03 | a | 37.05 | 28.27 | 47.03 | |||||||||
1977 | 20.27 | 33.54 | 35.05 | a | 48.22 | 52.71 | 66.17 | 69.66 | 69.04 | c | 62.12 | i | 49.54 | g | 38.75 | 31.69 | 46.51 | b | ||||||||
1978 | 26.89 | 28.50 | 41.31 | 47.08 | 51.13 | 62.47 | 68.90 | 65.18 | 59.35 | 51.42 | 38.03 | a | 20.32 | a | 46.71 | |||||||||||
1979 | 17.03 | a | 24.86 | 35.16 | 45.38 | 53.13 | 61.14 | a | 68.44 | 65.66 | 64.30 | o | 51.84 | 30.57 | 30.05 | 43.93 | a | |||||||||
1980 | 28.19 | 31.33 | 33.13 | 43.63 | 50.25 | a | 64.03 | a | 69.97 | a | 66.71 | 59.78 | 48.12 | a | 37.58 | 35.26 | 47.33 | |||||||||
1981 | 33.57 | a | 34.64 | 36.02 | 48.83 | 51.55 | 64.35 | 69.80 | a | 66.60 | a | 60.93 | 47.65 | 39.33 | 30.98 | 48.69 | ||||||||||
1982 | 22.40 | a | 28.84 | 37.53 | a | 44.41 | a | 52.45 | 60.23 | 67.69 | 68.50 | 59.48 | 44.95 | b | 35.60 | 26.00 | a | 45.67 | ||||||||
1983 | 28.12 | b | 32.32 | 37.35 | 40.38 | b | 51.73 | 60.22 | a | 69.80 | a | 69.73 | 61.28 | a | 49.70 | a | 35.16 | a | 27.15 | a | 46.91 | |||||
1984 | 23.40 | a | 29.97 | 37.94 | 42.57 | 58.27 | 62.53 | a | 70.68 | 67.74 | 60.87 | 42.32 | 35.85 | 30.11 | 46.85 | |||||||||||
1985 | 27.84 | 29.35 | a | 37.90 | 48.33 | 54.53 | 64.53 | 69.42 | a | 67.63 | 55.87 | 49.33 | a | 34.20 | 27.32 | 47.19 | ||||||||||
1986 | 33.56 | 36.48 | a | 42.81 | 45.70 | 53.69 | 63.50 | 66.10 | 68.23 | 54.90 | 46.85 | 36.62 | 30.82 | 48.27 | ||||||||||||
1987 | 25.77 | 32.82 | 35.35 | a | 48.77 | 53.60 | 64.23 | 67.40 | 65.87 | 58.29 | a | 50.66 | 36.42 | 25.87 | 47.09 | |||||||||||
1988 | 19.85 | 31.17 | 36.97 | a | 47.65 | 54.64 | c | 65.34 | b | 69.02 | 67.89 | 58.43 | 52.98 | 36.03 | 26.53 | 47.21 | ||||||||||
1989 | 22.98 | 31.54 | 43.32 | 51.58 | 57.10 | 63.87 | 71.00 | 66.35 | 61.48 | 47.98 | a | 38.37 | 28.26 | 48.65 | ||||||||||||
1990 | 23.45 | 30.30 | a | 41.22 | a | 48.83 | 53.19 | 66.87 | 68.55 | 65.68 | 62.08 | 48.97 | a | 37.18 | 20.47 | 47.23 | ||||||||||
1991 | 23.68 | 34.71 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 29.20 | j | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 24.96 | 30.32 | 37.09 | 45.31 | 52.85 | 61.21 | 67.52 | 66.04 | 58.73 | 48.30 | 36.86 | 27.18 | 46.54 | |||||||||||||
S.D. | 4.00 | 4.15 | 3.09 | 2.75 | 2.38 | 2.52 | 1.96 | 1.79 | 2.03 | 2.33 | 2.82 | 3.82 | 1.03 | |||||||||||||
SKEW | 0.11 | -0.56 | 0.23 | -0.06 | -0.01 | -0.15 | -0.66 | -0.50 | -0.27 | -0.09 | -0.29 | -0.31 | -0.03 | |||||||||||||
MAX | 33.85 | 38.68 | 44.23 | 51.58 | 58.27 | 67.22 | 71.00 | 69.82 | 62.45 | 53.52 | 42.08 | 35.26 | 48.89 | |||||||||||||
MIN | 14.87 | 16.64 | 29.74 | 39.65 | 46.98 | 53.09 | 61.18 | 60.58 | 53.91 | 42.32 | 29.43 | 16.69 | 43.78 | |||||||||||||
YRS | 91 | 94 | 93 | 94 | 93 | 93 | 86 | 95 | 88 | 85 | 92 | 92 | 59 |