YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1908 | 26.79 | c | 25.39 | a | 34.94 | 52.80 | 64.94 | 74.79 | a | 78.03 | 76.03 | 76.03 | 57.52 | 38.97 | 25.29 | 52.63 | ||||||||||
1909 | 24.74 | 27.68 | f | 33.90 | 42.20 | 62.61 | 77.30 | 77.52 | 77.42 | 67.07 | 49.91 | h | 43.87 | 23.45 | 53.01 | b | ||||||||||
1910 | 24.13 | 22.00 | 52.03 | 59.93 | 62.23 | 82.03 | 82.97 | 78.39 | 68.23 | 59.84 | 31.23 | 23.42 | 53.87 | |||||||||||||
1911 | 22.52 | 29.39 | 42.69 | b | 52.47 | 71.52 | 81.93 | 79.13 | 75.16 | 66.53 | 51.87 | 32.23 | 31.06 | 53.04 | ||||||||||||
1912 | 4.23 | 19.21 | 31.97 | 54.30 | 67.16 | 75.10 | 80.10 | 69.23 | 68.33 | 58.42 | 41.03 | 29.06 | 49.84 | |||||||||||||
1913 | 22.77 | 17.86 | 32.27 | a | 55.83 | 64.58 | 80.87 | 77.16 | 77.84 | 69.24 | a | 54.70 | a | 43.97 | 35.90 | 52.75 | ||||||||||
1914 | 26.23 | 18.50 | 34.16 | 49.23 | 69.74 | 74.83 | 83.13 | 75.52 | 70.50 | 63.55 | 38.83 | 19.94 | 52.01 | |||||||||||||
1915 | 20.39 | 31.93 | 35.97 | 63.60 | 60.87 | 71.70 | 74.84 | 72.63 | a | 68.50 | 55.97 | 38.00 | 26.42 | 51.73 | ||||||||||||
1916 | 21.81 | 19.34 | 32.03 | 48.83 | 64.00 | 68.27 | 86.94 | 79.74 | 65.20 | 53.84 | 36.23 | 21.39 | 49.80 | |||||||||||||
1917 | 17.74 | 13.68 | 34.23 | 46.67 | 61.39 | 70.30 | 79.94 | 72.65 | 65.40 | 41.97 | a | 41.53 | 16.94 | 46.87 | ||||||||||||
1918 | 10.13 | 21.75 | 44.10 | 52.83 | 67.61 | 73.20 | 78.00 | 77.55 | 60.48 | a | 55.81 | 41.23 | 29.94 | 51.05 | ||||||||||||
1919 | 28.13 | 25.57 | 38.00 | 51.63 | 66.32 | 78.37 | 80.00 | 74.71 | 70.07 | 51.68 | 33.57 | 15.63 | a | 51.14 | ||||||||||||
1920 | 15.06 | 22.24 | 38.03 | a | 45.40 | 67.48 | 76.27 | 75.03 | 75.87 | a | 71.23 | 63.73 | a | 34.40 | 27.23 | 51.00 | ||||||||||
1921 | 25.97 | 29.00 | 36.84 | 58.37 | 68.97 | 80.30 | 85.29 | 77.19 | 70.33 | 55.03 | 32.10 | 25.03 | 53.70 | |||||||||||||
1922 | 21.39 | 22.25 | 38.81 | 50.20 | 72.16 | 74.97 | 74.45 | 76.68 | 70.97 | 57.61 | 39.97 | 23.52 | 51.91 | |||||||||||||
1923 | 21.87 | 18.50 | 28.94 | 48.90 | 68.00 | 78.87 | 79.94 | 73.32 | 68.83 | 55.32 | 43.83 | 35.10 | a | 51.79 | ||||||||||||
1924 | 13.77 | a | 27.24 | 34.52 | 48.30 | 56.26 | 71.17 | 74.10 | 73.13 | 63.40 | 64.03 | 39.53 | ----- | z | 51.40 | a | ||||||||||
1925 | 21.94 | 26.00 | 39.97 | 60.40 | 64.13 | a | 74.60 | 77.35 | 78.87 | 70.17 | 42.65 | 39.13 | 24.19 | 51.62 | ||||||||||||
1926 | 23.58 | 26.39 | 29.94 | 48.00 | 69.77 | 70.17 | 77.52 | 74.87 | 62.07 | 49.84 | 30.97 | 24.43 | a | 48.96 | ||||||||||||
1927 | 20.13 | 29.18 | 40.90 | 52.10 | 59.55 | 71.73 | 74.90 | 74.06 | 69.63 | 59.45 | 34.69 | a | 21.84 | 50.68 | ||||||||||||
1928 | ----- | z | 26.97 | 35.62 | b | 45.72 | a | 68.16 | 69.73 | 78.48 | 76.81 | 62.23 | 55.47 | a | 39.13 | 28.70 | a | 53.37 | a | |||||||
1929 | ----- | z | ----- | z | ----- | z | 54.46 | f | 62.50 | c | 71.76 | a | 79.48 | 77.07 | a | 67.53 | 54.74 | 35.69 | a | 23.16 | 58.99 | d | ||||
1930 | 15.16 | 31.04 | 36.84 | 56.17 | 66.65 | 75.43 | 80.48 | 82.16 | 69.63 | 52.48 | 43.80 | 26.23 | 53.01 | |||||||||||||
1931 | 28.39 | 36.46 | 35.87 | 55.37 | 65.65 | 78.17 | 81.71 | 75.35 | 74.33 | 59.52 | 46.17 | 33.39 | 55.86 | |||||||||||||
1932 | 28.68 | 29.45 | 29.55 | 51.77 | 66.39 | 78.73 | 80.35 | 79.71 | 68.50 | 51.13 | 35.13 | 25.13 | a | 52.04 | ||||||||||||
1933 | 30.52 | 23.11 | a | 33.74 | 49.57 | 67.68 | 83.60 | 83.77 | 78.32 | 73.83 | 50.55 | 33.33 | 22.74 | 52.56 | ||||||||||||
1934 | 28.32 | 20.18 | 31.61 | 47.60 | 74.29 | 78.67 | 82.03 | 75.26 | 65.73 | 57.97 | 40.37 | 23.47 | a | 52.12 | ||||||||||||
1935 | 19.84 | 27.81 | a | 37.81 | 51.80 | 62.13 | 68.73 | 82.45 | 75.32 | 66.10 | 54.32 | 33.47 | 24.26 | 50.34 | ||||||||||||
1936 | 17.45 | 12.21 | 36.23 | 45.79 | a | 71.74 | 73.63 | 87.26 | 77.77 | 72.20 | 50.77 | 34.73 | 29.90 | 50.81 | ||||||||||||
1937 | 21.35 | 25.21 | 34.42 | 47.23 | 68.71 | 75.07 | a | 83.52 | 85.06 | 69.07 | 50.68 | 36.57 | 23.87 | 51.73 | ||||||||||||
1938 | 20.42 | 29.04 | 45.19 | 53.43 | 65.52 | 72.47 | 77.45 | 79.52 | 67.20 | 62.06 | 39.33 | 25.90 | 53.13 | |||||||||||||
1939 | 26.42 | 22.21 | 35.94 | 50.13 | 71.03 | a | 73.77 | 80.23 | 77.77 | 71.31 | a | 54.23 | 42.93 | 33.17 | a | 53.26 | ||||||||||
1940 | 17.87 | 27.31 | 30.77 | 47.73 | 62.00 | 72.97 | 79.58 | 73.63 | a | 70.10 | 56.90 | 35.83 | 27.97 | 50.22 | ||||||||||||
1941 | 24.03 | 26.64 | 34.81 | 60.47 | 71.47 | a | 77.33 | 80.26 | 76.45 | 70.20 | 55.71 | 40.53 | 31.29 | 54.10 | ||||||||||||
1942 | 25.10 | 24.93 | 39.16 | 61.87 | 64.65 | 74.37 | 77.10 | 76.00 | 63.86 | a | 59.32 | 39.80 | 20.39 | 52.21 | ||||||||||||
1943 | 18.52 | 28.75 | 31.52 | 49.60 | 64.97 | 77.33 | 82.61 | 77.90 | 64.57 | 58.32 | 33.87 | 29.32 | 51.44 | |||||||||||||
1944 | 33.77 | 28.21 | 32.74 | 51.17 | 69.94 | 77.00 | 79.16 | 80.77 | 67.57 | 59.35 | 42.27 | 23.65 | 53.80 | |||||||||||||
1945 | 17.84 | 27.89 | 49.29 | 52.90 | 60.61 | 69.70 | 76.19 | 77.32 | 67.93 | 54.77 | 36.63 | 21.84 | 51.08 | |||||||||||||
1946 | 24.00 | 24.39 | 50.00 | 56.77 | 65.81 | 73.77 | 79.13 | 75.16 | 68.63 | 60.39 | 41.10 | 27.32 | 53.87 | |||||||||||||
1947 | 27.67 | a | 23.14 | 34.87 | 48.10 | 60.39 | 72.17 | 79.47 | a | 85.17 | a | 69.50 | 67.39 | 33.57 | 25.48 | 52.24 | ||||||||||
1948 | 19.29 | 25.72 | 37.06 | 57.50 | 67.84 | 74.70 | 79.32 | 78.97 | 74.57 | 57.32 | 39.10 | 27.39 | 53.23 | |||||||||||||
1949 | 26.35 | 26.07 | 34.71 | 57.90 | 69.55 | 79.53 | 79.61 | 78.68 | 64.87 | 60.23 | 38.53 | 26.71 | 53.56 | |||||||||||||
1950 | 22.26 | 25.67 | a | 32.45 | 40.00 | 65.19 | 75.00 | 75.42 | 73.68 | 67.43 | 60.35 | 33.23 | 21.16 | 49.32 | ||||||||||||
1951 | 20.58 | 26.82 | 33.16 | 49.60 | 71.42 | 71.20 | 77.68 | 71.23 | 63.43 | 54.03 | 32.70 | 24.55 | 49.70 | |||||||||||||
1952 | 24.71 | 31.79 | 35.68 | 59.30 | 66.68 | 76.27 | 79.10 | 74.94 | 69.63 | 52.35 | 41.57 | 29.45 | 53.46 | |||||||||||||
1953 | 25.26 | 27.18 | 38.00 | 47.00 | 68.06 | 76.10 | 78.19 | 78.06 | 67.70 | 64.61 | 46.83 | 28.52 | 53.79 | |||||||||||||
1954 | 21.61 | 36.43 | 34.26 | 54.23 | 57.65 | 76.97 | 79.26 | 74.39 | 63.03 | 53.48 | 42.00 | 28.23 | 51.79 | |||||||||||||
1955 | 22.35 | 25.46 | 35.55 | 61.00 | 72.26 | 74.47 | 84.29 | 80.84 | 68.20 | 57.87 | 34.23 | 22.65 | 53.26 | |||||||||||||
1956 | 27.52 | 28.21 | 35.52 | 48.77 | 65.94 | 77.37 | 73.48 | 75.65 | 65.07 | 64.90 | 38.53 | 29.10 | 52.50 | |||||||||||||
1957 | 16.45 | 29.07 | 39.10 | 55.27 | 66.84 | 74.53 | 81.94 | 78.23 | 66.97 | 56.58 | 37.03 | 28.55 | 52.55 | |||||||||||||
1958 | 26.68 | 24.32 | 39.90 | 56.77 | 67.71 | 71.80 | 77.16 | 77.65 | 68.63 | 57.03 | 40.77 | 22.07 | b | 52.54 | ||||||||||||
1959 | ----- | z | ----- | z | 39.59 | b | 53.47 | 71.39 | 77.50 | 79.06 | 79.39 | 69.67 | 50.29 | 30.47 | 32.61 | 58.34 | b | |||||||||
1960 | 23.52 | 28.38 | 32.81 | 52.53 | 64.32 | 73.30 | 78.52 | 79.16 | 68.50 | 57.48 | 41.23 | 24.61 | 52.03 | |||||||||||||
1961 | 22.42 | 34.32 | 40.87 | 48.70 | 65.16 | 76.83 | 78.32 | 78.52 | 67.60 | 59.42 | 38.53 | 25.00 | 52.97 | |||||||||||||
1962 | 18.03 | 23.36 | 40.29 | 51.97 | 69.39 | 74.73 | 76.26 | 77.35 | 64.43 | 57.81 | 38.83 | 24.90 | 51.45 | |||||||||||||
1963 | 11.68 | 20.21 | 41.61 | 57.63 | 64.77 | 78.57 | 82.00 | 76.52 | 70.03 | 68.71 | 45.00 | 20.97 | 53.14 | |||||||||||||
1964 | 29.74 | 30.97 | 35.90 | 55.27 | 72.10 | 76.60 | 82.32 | 73.00 | 65.90 | 55.32 | 42.97 | 23.23 | 53.61 | |||||||||||||
1965 | 21.23 | 23.75 | 32.03 | 48.63 | 70.84 | 74.03 | 77.00 | 75.26 | 61.75 | n | 56.42 | 36.20 | 30.19 | 49.60 | a | |||||||||||
1966 | 18.90 | 27.39 | 41.03 | 48.43 | 62.06 | 78.57 | 84.45 | 73.84 | 68.30 | 55.42 | 36.57 | 26.35 | 51.78 | |||||||||||||
1967 | 25.32 | 21.64 | 40.00 | 53.33 | 62.29 | 75.00 | 77.55 | 74.39 | 69.53 | 54.19 | 34.53 | 27.74 | 51.29 | |||||||||||||
1968 | 22.87 | 26.00 | 47.71 | 57.50 | 64.29 | 73.77 | 78.19 | 78.48 | 68.27 | 58.84 | 38.70 | 25.77 | 53.37 | |||||||||||||
1969 | 22.87 | 30.71 | 37.13 | 57.53 | 69.00 | 65.87 | 79.00 | 82.48 | 69.30 | 51.35 | 39.63 | 27.68 | 52.71 | |||||||||||||
1970 | 18.32 | 26.75 | 36.90 | 54.77 | 66.60 | a | 78.23 | 82.58 | 80.39 | 69.33 | 58.90 | a | 37.77 | 26.60 | a | 53.10 | ||||||||||
1971 | 17.10 | a | 26.39 | 35.68 | 53.67 | 64.65 | 79.57 | 76.03 | 75.87 | 69.33 | 61.71 | 38.27 | 27.94 | 52.18 | ||||||||||||
1972 | 18.84 | 22.62 | 34.65 | 48.83 | 73.74 | 76.41 | a | 76.65 | 76.13 | a | 64.80 | 49.00 | p | 34.07 | 20.00 | 49.70 | a | |||||||||
1973 | 25.68 | 27.07 | 43.55 | 47.70 | 57.65 | 73.70 | 77.71 | 76.13 | 65.90 | 60.81 | 36.67 | 24.77 | 51.44 | |||||||||||||
1974 | 20.03 | 24.71 | 34.61 | 50.80 | 59.77 | 69.10 | 79.94 | 74.45 | 60.17 | 53.13 | 39.93 | 30.32 | 49.75 | |||||||||||||
1975 | 23.61 | 25.61 | 33.03 | 46.00 | 69.94 | 71.47 | 80.16 | 77.23 | 62.27 | ----- | z | 44.80 | 24.87 | 50.82 | a | |||||||||||
1976 | 18.23 | 31.48 | 34.32 | 55.03 | 63.23 | 78.57 | 80.65 | 78.16 | 67.73 | 51.10 | 32.30 | 17.13 | 50.66 | |||||||||||||
1977 | 12.19 | 28.25 | 42.87 | 57.60 | 76.84 | 72.23 | 80.35 | 71.03 | 63.50 | 55.58 | 38.57 | 24.06 | 51.92 | |||||||||||||
1978 | 19.80 | a | 24.11 | 37.81 | 48.47 | 68.29 | 71.83 | 74.10 | 76.00 | 69.40 | 52.71 | 38.33 | 21.74 | 50.22 | ||||||||||||
1979 | 13.52 | 19.71 | 35.19 | 47.87 | 58.65 | 72.20 | 79.03 | 73.13 | 67.97 | 49.29 | 35.93 | 30.10 | 48.55 | |||||||||||||
1980 | 21.45 | 23.76 | 33.39 | 53.73 | 71.45 | 71.47 | 78.61 | 74.58 | 64.60 | 48.81 | 39.14 | a | 22.97 | 50.33 | ||||||||||||
1981 | 24.45 | 28.50 | 39.74 | 53.80 | 64.77 | 72.10 | 76.97 | 76.58 | 64.87 | 49.35 | 44.87 | 27.26 | 51.94 | |||||||||||||
1982 | 14.00 | 25.39 | 34.52 | 47.20 | 70.29 | 68.70 | 78.52 | 73.13 | 63.27 | 55.35 | 37.37 | 29.84 | 49.80 | |||||||||||||
1983 | 25.52 | 31.21 | 36.97 | 46.80 | 58.97 | 74.20 | 82.84 | 80.90 | 68.43 | 54.71 | 38.90 | 15.10 | a | 51.21 | ||||||||||||
1984 | 19.42 | 34.59 | 32.65 | 56.50 | 61.90 | 74.53 | 77.16 | 77.42 | 64.20 | 56.71 | 38.90 | 26.10 | 51.67 | |||||||||||||
1985 | 19.71 | 23.21 | 41.84 | ----- | z | 68.03 | 70.07 | 76.81 | 72.48 | 65.53 | 54.74 | 32.73 | 17.63 | d | 49.34 | a | ||||||||||
1986 | 23.84 | 25.39 | 38.81 | 57.48 | a | 70.23 | 73.37 | 78.42 | 71.94 | 64.70 | 53.19 | 35.93 | b | 28.44 | d | 51.81 | ||||||||||
1987 | 27.13 | 36.04 | 44.84 | 60.87 | 68.58 | 77.73 | 79.77 | 75.39 | 69.60 | 47.74 | 42.10 | 30.52 | 55.03 | |||||||||||||
1988 | 19.90 | 23.07 | 36.77 | 54.87 | 73.10 | 80.07 | 83.29 | 78.19 | 66.70 | 48.13 | 37.17 | 27.10 | 52.36 | |||||||||||||
1989 | 29.57 | c | 21.36 | 34.00 | 49.90 | 65.68 | 71.90 | 81.61 | 77.29 | 68.80 | 58.06 | 32.93 | 16.48 | 50.63 | ||||||||||||
1990 | 31.65 | 29.82 | 42.13 | 55.70 | 61.87 | 72.53 | 76.26 | 75.77 | 67.00 | 52.97 | 43.73 | 26.93 | a | 53.03 | ||||||||||||
1991 | 19.48 | 31.68 | 39.42 | 55.60 | 68.71 | 78.40 | 75.16 | 78.97 | 63.57 | 52.68 | 33.60 | 27.40 | a | 52.06 | ||||||||||||
1992 | 25.68 | 30.83 | 37.90 | 46.27 | 68.19 | 71.03 | 70.71 | 72.71 | 63.80 | 54.10 | 34.13 | 26.87 | 50.19 | |||||||||||||
1993 | 23.48 | 27.43 | 42.16 | 47.50 | 63.19 | 69.23 | 75.90 | 76.61 | 61.00 | 51.35 | 34.57 | 26.23 | 49.89 | |||||||||||||
1994 | 13.26 | 22.46 | 39.23 | 52.27 | 67.42 | 76.20 | 74.32 | 72.13 | 69.23 | 57.55 | 43.07 | 33.26 | 51.70 | |||||||||||||
1995 | 24.42 | 26.07 | 40.84 | 45.10 | 63.26 | 81.07 | a | 77.81 | 78.52 | 65.90 | 53.13 | 29.23 | 23.32 | 50.72 | ||||||||||||
1996 | 21.63 | a | 25.04 | a | 31.32 | 46.63 | 61.52 | 72.77 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 43.15 | f | ||||
1997 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1998 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1999 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2000 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2001 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 21.86 | 26.00 | 37.16 | 52.17 | 66.30 | 74.75 | 79.05 | 76.54 | 67.41 | 55.70 | 37.97 | 25.72 | 51.85 | |||||||||||||
S.D. | 5.10 | 4.56 | 4.59 | 4.84 | 4.22 | 3.57 | 3.05 | 2.91 | 3.14 | 4.81 | 4.00 | 4.25 | 1.52 | |||||||||||||
SKEW | -0.53 | -0.21 | 0.90 | 0.14 | -0.12 | 0.10 | 0.24 | 0.34 | 0.01 | 0.02 | 0.06 | -0.20 | -0.35 | |||||||||||||
MAX | 33.77 | 36.46 | 52.03 | 63.60 | 76.84 | 83.60 | 87.26 | 85.17 | 76.03 | 68.71 | 46.83 | 35.90 | 55.86 | |||||||||||||
MIN | 4.23 | 12.21 | 28.94 | 40.00 | 56.26 | 65.87 | 70.71 | 69.23 | 60.17 | 41.97 | 29.23 | 15.10 | 46.87 | |||||||||||||
YRS | 86 | 86 | 88 | 87 | 89 | 89 | 88 | 88 | 87 | 85 | 88 | 87 | 79 |