YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1904 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 49.75 | g | 43.08 | 31.15 | 37.11 | j | ||
1905 | 31.50 | 32.36 | 46.55 | 52.33 | 56.55 | 62.98 | 74.23 | 70.11 | 61.90 | 46.15 | 36.85 | 27.00 | 49.88 | |||||||||||||
1906 | 28.50 | 34.89 | 36.79 | 53.15 | 56.90 | 62.35 | 76.71 | 71.26 | 61.27 | 52.56 | 38.28 | 37.13 | 50.82 | |||||||||||||
1907 | 29.29 | 43.21 | 44.24 | 50.28 | 58.73 | 61.86 | a | 71.89 | 66.98 | 59.73 | 55.89 | 39.47 | 33.79 | 51.28 | ||||||||||||
1908 | 34.26 | 37.05 | 42.10 | 51.12 | 53.31 | d | 60.53 | 73.60 | a | 68.21 | 61.25 | 47.82 | 40.10 | a | 30.55 | 49.99 | ||||||||||
1909 | 34.79 | 39.38 | 44.40 | 46.75 | 54.27 | a | 65.13 | 70.26 | 69.68 | 62.25 | 50.31 | 42.43 | 25.98 | 50.47 | ||||||||||||
1910 | 22.85 | 27.73 | 47.39 | 55.70 | 59.84 | 65.38 | 73.81 | 66.10 | j | 60.38 | 50.58 | 40.35 | 34.05 | 48.91 | a | |||||||||||
1911 | 30.69 | 30.27 | 43.63 | 48.00 | 54.65 | 66.05 | 72.52 | 66.82 | 57.15 | 47.52 | 36.95 | 30.02 | 48.69 | |||||||||||||
1912 | 25.53 | 37.19 | 40.98 | a | 49.38 | 56.08 | 66.33 | 67.82 | 66.23 | 55.17 | a | 48.05 | 41.55 | 29.06 | 48.62 | |||||||||||
1913 | 26.61 | 30.36 | 38.77 | 50.93 | 58.87 | 65.77 | 69.21 | 71.05 | 60.03 | 47.47 | 42.22 | 26.82 | 49.01 | |||||||||||||
1914 | 36.15 | 35.73 | 46.16 | 52.02 | 60.77 | 62.60 | 73.89 | 70.55 | 58.72 | 52.74 | 37.25 | 21.97 | 50.71 | |||||||||||||
1915 | 25.77 | 39.84 | 45.84 | 56.08 | 53.08 | s | 62.95 | i | 69.52 | 74.39 | 59.78 | 51.81 | 38.75 | 32.85 | 49.46 | b | ||||||||||
1916 | 25.61 | 36.10 | 46.81 | 52.95 | 54.45 | 62.85 | 73.29 | 69.56 | 60.05 | 47.71 | 33.92 | 27.71 | 49.25 | |||||||||||||
1917 | 22.23 | 31.52 | 34.74 | 48.02 | 56.26 | 62.75 | 75.37 | 71.00 | 64.30 | 51.79 | 41.30 | 41.73 | 50.08 | |||||||||||||
1918 | 33.97 | 35.48 | 46.92 | 49.52 | 55.87 | 73.57 | 73.73 | 67.23 | 64.83 | 54.00 | 38.63 | 27.71 | 51.79 | |||||||||||||
1919 | 31.13 | 35.86 | 43.73 | 53.28 | a | 57.13 | 66.65 | 74.02 | 71.97 | 63.38 | 45.29 | 36.62 | 21.55 | 50.05 | ||||||||||||
1920 | 26.79 | 36.10 | 42.42 | 46.68 | 55.92 | 65.07 | 75.18 | 71.16 | 61.95 | 48.53 | 39.78 | 33.82 | 50.28 | |||||||||||||
1921 | 33.53 | 34.45 | 41.00 | 47.98 | 58.44 | 68.78 | 74.19 | 71.89 | 57.00 | 53.08 | 43.52 | 32.03 | 51.32 | |||||||||||||
1922 | 18.74 | 31.23 | 40.21 | 46.15 | 56.15 | 69.03 | 71.69 | 72.85 | a | 64.45 | 54.02 | 36.35 | 28.00 | 49.07 | ||||||||||||
1923 | 34.68 | 29.82 | 40.87 | a | 49.63 | 57.06 | 62.77 | 72.89 | 70.44 | 64.28 | 48.19 | 37.32 | 30.50 | 49.87 | ||||||||||||
1924 | 21.73 | 40.60 | 39.18 | a | 49.55 | 63.47 | 66.33 | 71.89 | 69.05 | 61.37 | 52.19 | 38.38 | 20.41 | b | 49.51 | |||||||||||
1925 | 27.60 | 40.07 | 44.48 | 52.70 | 60.45 | a | 65.73 | 75.45 | 69.77 | 61.08 | 49.00 | 39.02 | 34.44 | 51.65 | ||||||||||||
1926 | 30.39 | 40.84 | 44.95 | 56.00 | 58.68 | 70.13 | 76.44 | 71.82 | 55.83 | 51.47 | 40.72 | 27.65 | 52.08 | |||||||||||||
1927 | 27.71 | 37.52 | 39.32 | 45.68 | 51.79 | 66.88 | 72.44 | 69.15 | 58.07 | 50.82 | 45.27 | 27.79 | 49.37 | |||||||||||||
1928 | 27.69 | 32.48 | 44.81 | 47.55 | 64.11 | 63.58 | 73.69 | 67.27 | 62.00 | 50.03 | 39.47 | 24.42 | 49.76 | |||||||||||||
1929 | 21.15 | 24.20 | 42.21 | 46.12 | 56.00 | a | 64.02 | 73.23 | 74.69 | 57.23 | 50.81 | 34.65 | 34.39 | 48.22 | ||||||||||||
1930 | 15.58 | 38.21 | 43.48 | 53.66 | a | 55.13 | 63.72 | a | 74.58 | 72.87 | 61.57 | 48.39 | 34.52 | 22.48 | 48.68 | |||||||||||
1931 | 28.42 | 35.09 | 42.82 | 49.73 | 60.32 | 66.92 | 75.94 | 71.85 | 61.75 | 51.79 | 35.20 | 25.31 | 50.43 | |||||||||||||
1932 | 25.74 | 29.76 | 41.23 | 51.22 | 58.26 | 67.12 | 72.48 | 68.47 | 62.02 | 49.76 | 39.22 | 23.82 | 49.09 | |||||||||||||
1933 | 29.06 | 20.54 | 40.69 | 48.03 | 53.27 | 69.35 | 74.68 | 69.94 | 60.28 | 54.82 | 40.53 | 40.02 | 50.10 | |||||||||||||
1934 | 38.39 | 42.45 | 49.77 | 57.37 | 64.32 | 66.22 | 75.15 | 73.58 | 60.02 | 52.98 | 44.33 | 32.66 | 54.77 | |||||||||||||
1935 | 29.79 | 32.79 | 40.29 | 49.32 | 57.68 | 65.98 | 72.48 | 70.05 | 63.57 | 50.23 | 33.05 | 28.50 | 49.48 | |||||||||||||
1936 | 31.85 | 28.60 | 41.34 | 55.13 | 62.81 | 68.77 | 76.77 | 73.90 | 60.02 | 52.40 | 33.38 | 32.81 | 51.48 | |||||||||||||
1937 | 14.06 | 31.05 | 44.44 | 49.81 | a | 61.08 | 65.07 | 76.66 | 70.83 | a | 63.92 | 53.37 | 44.20 | 36.69 | 50.93 | |||||||||||
1938 | 34.74 | 40.46 | 42.61 | 52.13 | 57.08 | 68.13 | 74.42 | 70.98 | 66.55 | 52.52 | 34.50 | 32.37 | 52.21 | |||||||||||||
1939 | 33.21 | 31.96 | 44.42 | 53.80 | 61.77 | 62.83 | 73.55 | 71.52 | 61.55 | 50.40 | 36.97 | 37.95 | 51.66 | |||||||||||||
1940 | 32.85 | 39.40 | 45.55 | 51.55 | 62.29 | 69.22 | 73.95 | 72.60 | 62.52 | 52.89 | 36.03 | 33.63 | 52.71 | |||||||||||||
1941 | 31.66 | 39.04 | 45.31 | 50.97 | 59.56 | 63.47 | 74.03 | 70.11 | 57.58 | 49.95 | 40.53 | 34.84 | 51.42 | |||||||||||||
1942 | 21.10 | 32.67 | a | 40.61 | 52.62 | a | 54.52 | 61.80 | 73.76 | 70.27 | 60.95 | 50.97 | 38.42 | 32.87 | 49.21 | |||||||||||
1943 | 28.44 | 34.52 | 40.32 | 54.67 | 54.55 | 61.38 | 71.19 | 69.29 | 64.05 | 52.44 | 37.97 | 31.81 | 50.05 | |||||||||||||
1944 | 23.79 | 36.10 | 40.19 | 50.52 | 59.18 | 61.93 | 71.15 | 68.85 | 61.18 | 53.97 | a | 38.45 | 28.76 | 49.51 | ||||||||||||
1945 | 31.00 | 38.14 | 41.81 | 48.27 | 58.29 | 62.00 | 72.87 | 70.73 | 58.65 | 52.82 | 39.42 | 31.29 | 50.44 | |||||||||||||
1946 | 30.39 | 35.61 | 45.06 | 53.25 | 59.08 | 65.23 | 73.18 | 70.66 | 58.83 | 45.61 | 38.05 | 35.82 | 50.90 | |||||||||||||
1947 | 24.27 | 38.50 | 45.63 | 51.20 | 63.11 | 61.62 | 72.61 | 67.98 | 60.72 | 53.21 | 37.83 | 31.98 | b | 50.72 | ||||||||||||
1948 | 33.05 | 35.55 | 40.29 | 49.20 | 57.06 | 68.02 | 69.94 | 68.76 | 59.27 | b | 48.89 | 38.00 | 26.80 | a | 49.57 | |||||||||||
1949 | 13.11 | 32.54 | 44.26 | 53.63 | 61.68 | 65.48 | 72.58 | 71.45 | 63.78 | 45.90 | 41.17 | 32.47 | 49.84 | |||||||||||||
1950 | 25.94 | 32.12 | d | 40.00 | a | 47.20 | 52.15 | 61.23 | 71.98 | 70.90 | 62.53 | 54.41 | b | 41.65 | 36.56 | 49.72 | ||||||||||
1951 | 30.48 | 37.07 | 39.48 | 52.58 | 58.03 | 62.97 | 73.47 | 69.92 | 61.12 | 48.61 | 36.95 | 30.02 | 50.06 | |||||||||||||
1952 | 25.97 | 30.55 | 38.85 | 53.78 | 59.50 | 65.17 | 72.02 | 72.04 | d | 63.17 | d | 54.13 | a | 34.53 | 34.19 | 50.33 | ||||||||||
1953 | 42.11 | 39.27 | 44.69 | 49.23 | 54.34 | 61.17 | 73.29 | 71.52 | a | 64.18 | 52.32 | 45.00 | 32.47 | 52.47 | ||||||||||||
1954 | 37.48 | 40.21 | 41.08 | a | 51.52 | 60.68 | 61.85 | 73.52 | 66.73 | a | 59.73 | 49.18 | 41.75 | 29.85 | 51.13 | |||||||||||
1955 | 25.44 | 30.00 | 39.15 | 46.93 | 55.97 | a | 66.43 | a | 69.50 | 70.44 | 59.46 | c | 51.37 | 35.93 | 36.18 | 48.90 | ||||||||||
1956 | 33.72 | a | 29.50 | 43.69 | 52.40 | 61.35 | 65.08 | k | 74.05 | 68.47 | 61.80 | 49.65 | 35.42 | 31.45 | 49.23 | a | ||||||||||
1957 | 20.48 | 32.23 | 44.28 | a | 50.97 | 59.61 | 66.58 | 71.47 | 68.16 | 62.43 | 48.30 | a | 35.37 | 34.31 | 49.52 | |||||||||||
1958 | 30.52 | 41.16 | 40.73 | 49.55 | 65.19 | 66.79 | a | 73.21 | 74.84 | 61.12 | 53.11 | 39.48 | a | 35.44 | 52.59 | |||||||||||
1959 | 35.85 | 38.27 | 41.29 | g | 51.85 | 54.34 | 68.05 | a | 73.07 | b | 67.58 | 58.00 | 50.10 | 36.28 | 27.85 | 51.02 | a | |||||||||
1960 | 23.97 | 33.98 | a | 44.90 | 52.73 | 57.34 | 71.43 | 80.55 | a | 70.39 | 65.24 | a | 50.53 | 40.50 | b | 29.63 | 51.77 | |||||||||
1961 | 29.89 | 41.30 | 47.45 | 50.76 | a | 61.50 | 73.73 | 79.35 | 79.87 | a | 59.17 | 50.39 | 37.65 | 32.18 | 53.60 | |||||||||||
1962 | 20.48 | b | 33.23 | 42.37 | 55.21 | a | 56.96 | c | 67.10 | ----- | z | 69.97 | 63.05 | 51.56 | 42.18 | 35.67 | a | 48.89 | a | |||||||
1963 | 25.73 | a | 43.64 | 45.81 | 49.45 | 63.21 | 66.33 | a | 73.28 | a | 74.26 | 69.37 | 56.47 | 42.17 | 28.27 | 53.17 | ||||||||||
1964 | 27.40 | 29.53 | 40.62 | b | 49.43 | 58.50 | a | 65.86 | b | 76.00 | a | 70.34 | c | 59.61 | b | 51.07 | a | 39.43 | 36.47 | a | 50.36 | |||||
1965 | 33.21 | 38.85 | a | 40.15 | a | 53.72 | 57.69 | 67.07 | a | 74.27 | a | 70.92 | 57.40 | 53.85 | 43.71 | a | 30.18 | 51.75 | ||||||||
1966 | 34.84 | 35.52 | 44.08 | a | 52.08 | 63.85 | 67.00 | a | 74.83 | b | 73.29 | 66.50 | 48.95 | c | 42.69 | a | 32.63 | 53.02 | ||||||||
1967 | 36.82 | a | 40.25 | 44.79 | 46.91 | c | 60.39 | 68.47 | a | 78.90 | 77.79 | 69.32 | 51.13 | 41.58 | 29.84 | 53.85 | ||||||||||
1968 | 31.29 | 42.43 | 47.82 | 49.00 | 58.77 | 69.62 | 76.92 | 68.48 | 62.18 | 49.53 | 40.02 | 34.00 | 52.51 | |||||||||||||
1969 | 31.45 | 34.62 | 42.23 | 53.47 | 64.05 | 67.87 | 74.26 | 73.19 | 65.50 | 46.58 | 38.73 | 34.18 | 52.18 | |||||||||||||
1970 | 36.39 | 41.21 | 43.61 | 46.87 | 60.66 | 71.70 | 77.50 | 76.84 | 59.37 | 49.07 | a | 43.27 | 33.85 | 53.36 | ||||||||||||
1971 | 34.66 | 38.95 | 41.92 | 52.50 | 62.71 | 65.98 | 76.81 | 78.61 | 59.37 | 49.42 | 39.00 | 30.94 | 52.57 | |||||||||||||
1972 | 29.21 | 34.19 | 46.66 | 50.22 | 62.71 | 69.82 | 73.60 | a | 74.88 | c | 59.28 | 52.03 | 41.58 | 24.26 | 51.54 | |||||||||||
1973 | 30.98 | a | 39.75 | 45.40 | 51.26 | a | 64.12 | a | 70.84 | a | 77.42 | 74.40 | 62.47 | 52.10 | 42.07 | a | 38.42 | 54.10 | ||||||||
1974 | 30.85 | 39.73 | 45.47 | a | 52.73 | 59.35 | ----- | z | 75.77 | 73.94 | 65.24 | a | 52.05 | 42.82 | 33.11 | 51.92 | a | |||||||||
1975 | 28.32 | 37.45 | 42.89 | 46.03 | 58.76 | 67.35 | 80.39 | 70.52 | 65.77 | 53.90 | a | 39.91 | a | 33.30 | a | 52.05 | ||||||||||
1976 | 33.16 | 36.12 | 40.56 | 51.57 | 64.02 | 66.27 | 76.53 | 69.37 | 65.67 | 51.77 | 41.10 | 29.23 | a | 52.11 | ||||||||||||
1977 | 19.93 | b | 34.18 | 42.02 | b | 57.21 | a | 56.35 | 73.78 | 74.87 | 74.55 | 63.13 | 51.89 | 39.45 | 37.20 | a | 52.05 | |||||||||
1978 | 36.82 | 39.54 | 49.58 | 50.70 | 57.18 | 67.52 | 75.24 | 71.45 | 62.28 | 52.73 | 35.63 | 26.26 | 52.08 | |||||||||||||
1979 | 15.16 | 33.29 | 44.47 | 50.07 | 60.19 | 69.52 | 75.73 | 73.58 | 67.90 | 54.63 | a | 35.42 | 33.97 | a | 51.16 | |||||||||||
1980 | 30.74 | 38.97 | 42.60 | 54.48 | 58.74 | 63.55 | a | 74.42 | 68.81 | 62.13 | 49.77 | 37.37 | 31.87 | 51.12 | ||||||||||||
1981 | 33.62 | a | 36.20 | 44.08 | 52.24 | a | 57.66 | 64.03 | a | 72.37 | 76.11 | 64.12 | 49.15 | d | 42.57 | 34.55 | 52.22 | |||||||||
1982 | 25.53 | a | 30.71 | 42.11 | 46.62 | 57.27 | 67.62 | 72.32 | a | 73.97 | a | 60.80 | 50.05 | 34.87 | 29.24 | b | 49.26 | |||||||||
1983 | 30.83 | a | 40.73 | 45.77 | 46.72 | 59.03 | a | 65.38 | 70.83 | a | 75.60 | b | 61.42 | 51.97 | 42.35 | 23.94 | f | 53.69 | a | |||||||
1984 | 22.36 | b | 29.45 | a | 43.58 | 49.17 | a | 58.00 | a | 64.18 | 76.27 | 76.73 | 60.67 | 48.23 | 39.45 | 22.67 | a | 49.23 | ||||||||
1985 | 19.55 | 27.39 | 38.10 | a | 54.40 | 60.55 | 69.62 | 80.39 | c | 68.68 | 55.52 | 47.63 | a | 29.18 | 12.47 | 46.96 | ||||||||||
1986 | 26.72 | b | 39.89 | 49.26 | 51.03 | 61.79 | 75.52 | a | 71.58 | 77.47 | 58.78 | 52.31 | 41.90 | 27.74 | 52.83 | |||||||||||
1987 | 27.79 | 38.79 | 46.56 | 58.85 | 63.85 | 71.25 | 72.84 | 71.92 | 65.27 | 54.58 | 41.32 | 34.44 | 53.95 | |||||||||||||
1988 | 24.88 | a | 38.02 | a | 45.61 | 54.47 | 60.72 | a | 72.13 | 78.18 | 74.19 | b | 62.23 | 59.53 | 41.48 | 27.56 | 53.25 | |||||||||
1989 | 23.44 | 21.30 | 44.27 | 55.10 | 60.00 | 71.08 | 77.60 | 71.94 | 64.00 | 51.42 | 39.37 | 30.87 | 50.87 | |||||||||||||
1990 | 34.95 | 35.21 | 47.05 | a | 57.50 | 58.23 | 69.12 | 77.61 | 75.48 | 70.72 | 51.55 | 41.12 | 20.00 | 53.21 | ||||||||||||
1991 | 24.65 | 41.25 | 44.58 | a | 50.23 | 56.52 | 64.30 | 77.13 | 77.53 | 66.63 | 52.81 | 38.07 | a | 31.62 | a | 52.11 | ||||||||||
1992 | 32.63 | a | 41.68 | a | 49.81 | 56.32 | 66.95 | a | 71.34 | e | 72.40 | 75.15 | a | 63.19 | a | 54.60 | b | 35.63 | 29.82 | 54.13 | ||||||
1993 | 25.45 | 30.12 | 42.06 | 50.62 | a | 64.85 | a | 63.68 | 66.45 | 69.24 | 63.74 | a | 53.47 | 33.22 | 34.82 | 49.81 | ||||||||||
1994 | 33.06 | 34.31 | a | 49.19 | 54.86 | a | 64.00 | 69.53 | 78.71 | 75.94 | 66.10 | 51.42 | a | 32.50 | a | 28.77 | a | 53.20 | ||||||||
1995 | 35.98 | 42.38 | 45.28 | a | 50.43 | a | 59.23 | 65.67 | 75.06 | 71.45 | c | 66.65 | 50.93 | a | 44.69 | a | 33.30 | a | 53.42 | |||||||
1996 | 33.21 | b | 37.07 | a | 46.87 | a | 52.83 | 57.89 | 68.35 | 77.78 | a | 74.23 | 62.43 | 52.02 | 40.95 | a | 37.17 | a | 53.40 | |||||||
1997 | 34.00 | 38.73 | 47.82 | a | 50.77 | 64.03 | 68.64 | b | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 50.67 | f | ||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 28.79 | 35.57 | 43.46 | 51.27 | 59.08 | 66.49 | 74.16 | 71.64 | 61.93 | 51.12 | 39.05 | 30.92 | 51.08 | |||||||||||||
S.D. | 5.75 | 4.76 | 3.03 | 2.98 | 3.29 | 3.31 | 2.69 | 2.96 | 3.08 | 2.54 | 3.21 | 4.80 | 1.64 | |||||||||||||
SKEW | -0.52 | -0.71 | -0.10 | 0.18 | 0.10 | 0.38 | 0.07 | 0.53 | 0.31 | 0.09 | -0.36 | -0.81 | 0.11 | |||||||||||||
MAX | 42.11 | 43.64 | 49.81 | 58.85 | 66.95 | 75.52 | 80.55 | 79.87 | 70.72 | 59.53 | 45.27 | 41.73 | 54.77 | |||||||||||||
MIN | 13.11 | 20.54 | 34.74 | 45.68 | 51.79 | 60.53 | 66.45 | 66.23 | 55.17 | 45.29 | 29.18 | 12.47 | 46.96 | |||||||||||||
YRS | 93 | 93 | 92 | 93 | 92 | 90 | 91 | 91 | 92 | 92 | 93 | 92 | 85 |