YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1909 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1910 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1911 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1912 | ----- | z | ----- | z | 35.90 | 45.27 | 56.29 | 70.23 | 77.90 | 77.71 | 61.07 | 54.84 | 44.87 | 25.60 | a | 54.97 | b | |||||||||
1913 | 31.62 | b | 26.60 | c | 31.52 | 49.07 | 54.21 | c | 70.67 | 77.26 | 81.94 | 65.03 | 48.43 | a | 40.70 | 30.87 | a | 50.66 | ||||||||
1914 | 30.64 | c | 29.79 | 39.81 | 58.33 | 60.84 | 68.33 | 74.90 | 71.03 | 66.27 | 52.58 | 46.83 | 25.03 | b | 52.03 | |||||||||||
1915 | 27.39 | 33.48 | a | 33.97 | a | 47.83 | 56.58 | 66.97 | a | 74.77 | 74.55 | 71.90 | 56.97 | 44.62 | d | 29.84 | 51.57 | |||||||||
1916 | 26.71 | 33.52 | 41.58 | 45.30 | c | 54.03 | 71.20 | 77.48 | 72.77 | a | 63.34 | a | 54.35 | 41.03 | 27.03 | 50.70 | ||||||||||
1917 | 24.54 | r | ----- | z | 65.50 | y | 58.55 | j | 62.55 | b | 74.00 | 81.30 | a | 73.26 | 67.20 | 54.03 | a | 43.56 | c | 42.55 | 62.31 | d | ||||
1918 | ----- | z | 34.36 | 44.17 | a | 39.90 | 58.97 | a | 74.37 | 79.55 | 79.35 | 69.83 | 60.00 | k | 24.14 | p | 23.35 | 55.98 | c | |||||||
1919 | 31.26 | 31.00 | 38.74 | 50.10 | 64.48 | 77.33 | 84.65 | 80.94 | 71.43 | 47.26 | 36.27 | 31.62 | b | 53.76 | ||||||||||||
1920 | 36.43 | a | 33.59 | 37.42 | 42.57 | 63.20 | u | 68.07 | 79.03 | 72.48 | 64.47 | 54.13 | 39.60 | 27.81 | 50.51 | a | ||||||||||
1921 | 32.77 | 46.81 | b | 57.37 | a | 55.27 | 56.61 | 71.27 | 75.39 | 71.87 | 69.27 | 62.90 | 46.70 | 38.97 | 57.10 | |||||||||||
1922 | 27.35 | 33.00 | 39.58 | 50.80 | 58.00 | 78.87 | 79.29 | 79.00 | 71.00 | 56.87 | 39.10 | 31.77 | 53.72 | |||||||||||||
1923 | 35.42 | 32.04 | 32.60 | a | 45.50 | b | 59.23 | 69.10 | 77.10 | 72.03 | a | 62.73 | 48.39 | 41.60 | 29.10 | 50.40 | ||||||||||
1924 | 24.77 | 35.45 | 29.35 | 45.37 | 57.97 | 70.53 | 77.16 | 76.13 | 65.27 | 53.13 | 40.77 | 26.81 | 50.23 | |||||||||||||
1925 | 27.68 | 33.39 | 40.97 | 53.93 | b | 64.24 | b | 67.66 | a | 76.48 | 68.83 | a | 65.57 | 50.68 | 40.48 | a | 31.13 | 51.75 | ||||||||
1926 | 25.71 | 34.57 | 37.00 | 50.30 | 58.39 | 69.67 | 74.50 | a | 74.84 | 66.17 | a | 55.32 | 38.70 | 27.68 | 51.07 | |||||||||||
1927 | 35.00 | 33.29 | 36.26 | 46.31 | a | 59.00 | 66.87 | 74.77 | 69.74 | 64.17 | 56.52 | 49.63 | 34.27 | a | 52.15 | |||||||||||
1928 | 35.45 | 34.29 | a | 42.87 | a | 45.53 | 63.47 | a | 63.38 | a | 75.30 | a | 72.84 | 69.83 | 54.65 | 39.03 | 26.97 | 51.97 | ||||||||
1929 | 30.89 | d | 31.56 | c | 35.69 | b | 45.11 | b | 59.39 | 69.79 | b | 74.46 | r | 75.90 | 61.87 | 53.48 | 33.87 | ----- | z | 49.75 | b | |||||
1930 | 23.06 | 37.64 | 38.77 | a | 55.97 | 55.94 | 73.87 | 79.26 | 74.42 | 68.57 | 51.67 | a | 40.10 | 24.35 | 51.97 | |||||||||||
1931 | 30.52 | 34.93 | 33.00 | 50.80 | e | 54.29 | 69.37 | 76.77 | 70.23 | 65.40 | 54.47 | a | 37.63 | 28.93 | d | 50.53 | ||||||||||
1932 | 18.69 | b | 29.21 | 40.68 | 55.41 | a | 60.65 | 67.57 | 76.00 | 71.90 | 67.37 | 51.39 | 40.17 | 24.45 | 50.29 | |||||||||||
1933 | 28.40 | a | 24.54 | 39.42 | 41.43 | 52.55 | b | 73.43 | 78.68 | 71.42 | 66.53 | 58.16 | 45.23 | 38.13 | 51.49 | |||||||||||
1934 | 31.06 | 38.57 | 44.16 | 54.72 | a | 66.83 | a | 72.00 | a | 79.00 | 76.52 | f | 63.28 | a | 57.53 | a | 37.17 | 27.55 | 51.99 | a | ||||||
1935 | 33.89 | c | 31.96 | a | 35.38 | b | 42.43 | 49.97 | 69.07 | 76.23 | 74.52 | 67.23 | 53.03 | 34.37 | 29.35 | 49.79 | ||||||||||
1936 | 26.03 | 26.52 | 36.00 | 45.62 | a | 60.70 | a | 71.60 | 75.87 | 73.35 | 63.03 | 48.16 | 40.93 | ----- | z | 51.62 | a | |||||||||
1937 | 20.16 | 34.71 | 40.00 | 47.23 | 60.61 | 67.03 | 76.16 | 77.50 | a | 70.37 | 55.80 | a | 38.14 | a | 31.77 | a | 51.62 | |||||||||
1938 | 29.16 | 31.50 | 39.00 | b | 51.10 | a | 57.61 | 70.63 | 75.52 | 76.71 | 68.33 | 57.52 | 30.03 | 30.45 | b | 51.46 | ||||||||||
1939 | 27.90 | a | 25.43 | 43.81 | 52.33 | 63.03 | 67.17 | 78.97 | 76.06 | 68.47 | 55.13 | 49.60 | 42.00 | c | 54.16 | |||||||||||
1940 | 30.11 | c | 33.61 | a | 41.07 | a | 48.07 | a | 61.38 | w | 71.53 | 79.00 | 76.32 | 68.77 | 57.68 | 33.67 | 33.58 | 52.13 | a | |||||||
1941 | 31.74 | 36.50 | 39.77 | 45.68 | b | 63.39 | c | 63.22 | c | 76.29 | 71.74 | 62.47 | 52.61 | 39.90 | 37.13 | 51.70 | ||||||||||
1942 | 27.26 | 25.11 | 34.03 | 50.50 | 56.00 | a | 68.50 | 76.52 | 77.39 | ----- | z | 53.19 | 39.77 | 32.13 | a | 49.13 | a | |||||||||
1943 | 27.42 | 33.54 | b | 35.90 | 56.30 | 53.47 | a | 67.93 | 79.35 | 74.94 | 71.03 | 59.52 | b | 42.10 | 33.13 | 52.89 | ||||||||||
1944 | 30.40 | a | 34.14 | 35.10 | 41.73 | 59.71 | 69.57 | 76.52 | 77.16 | 67.33 | ----- | z | ----- | z | ----- | z | 54.63 | c | ||||||||
1945 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 63.67 | 75.81 | 74.26 | 65.80 | 57.26 | ----- | z | ----- | z | 67.36 | g | |||||
1946 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 73.70 | 79.68 | 74.45 | 69.20 | 45.73 | a | 42.77 | 37.23 | 60.39 | e | ||||||
1947 | 28.55 | 33.29 | 36.55 | 44.93 | 62.19 | 65.10 | 79.19 | 77.26 | 69.73 | 57.03 | 32.77 | 29.39 | 51.33 | |||||||||||||
1948 | 26.21 | b | 29.76 | 31.37 | a | 47.53 | 63.20 | a | 70.60 | 78.77 | 78.10 | 76.50 | 58.84 | 34.41 | a | 27.45 | 51.90 | |||||||||
1949 | 20.58 | 27.56 | a | 38.65 | 51.10 | 59.32 | 66.90 | 75.58 | 76.35 | 68.24 | i | 51.31 | b | 49.50 | 28.94 | 49.62 | a | |||||||||
1950 | 27.81 | 34.14 | 35.13 | 48.73 | 56.58 | 71.33 | 76.32 | 74.48 | 68.03 | 67.84 | 39.77 | 36.94 | 53.09 | |||||||||||||
1951 | 27.50 | a | 28.90 | g | 34.00 | 45.40 | 61.87 | 61.93 | 78.87 | 75.61 | 70.77 | 53.90 | 36.90 | 25.84 | 52.05 | a | ||||||||||
1952 | 25.97 | 27.86 | 30.58 | 47.00 | 62.52 | 73.92 | e | 77.42 | 71.77 | 67.91 | g | 64.35 | 51.11 | l | 20.56 | v | 53.49 | c | ||||||||
1953 | 34.39 | 27.87 | e | 41.83 | h | 44.20 | 60.39 | 74.17 | 79.61 | 74.39 | 74.07 | 64.26 | 44.77 | 32.16 | 55.48 | a | ||||||||||
1954 | 33.84 | 39.74 | a | 35.57 | a | 53.93 | 62.03 | 71.13 | 83.16 | 74.74 | 71.83 | 55.82 | c | 45.73 | 32.69 | e | 55.02 | |||||||||
1955 | 31.29 | ----- | z | 39.60 | a | 50.19 | c | ----- | z | ----- | z | 80.77 | 74.71 | 68.47 | 60.13 | a | 40.20 | 34.61 | 53.33 | c | ||||||
1956 | 34.74 | 23.45 | 36.35 | 48.90 | a | 64.84 | 78.07 | 77.73 | a | 75.82 | c | 74.07 | 59.58 | 39.20 | 35.32 | 54.01 | ||||||||||
1957 | 27.16 | 35.50 | 38.32 | 42.73 | 56.39 | 65.27 | 77.52 | 75.68 | 69.77 | ----- | z | ----- | z | ----- | z | 54.26 | c | |||||||||
1958 | 29.74 | 37.79 | 34.80 | a | 41.77 | 64.13 | 70.40 | 71.35 | ----- | z | 67.17 | f | 59.61 | ----- | z | ----- | z | 51.20 | d | |||||||
1959 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1960 | ----- | z | ----- | z | ----- | z | ----- | z | 60.44 | d | 69.90 | 74.68 | 76.23 | a | 70.23 | 54.67 | a | 40.66 | a | 29.03 | 59.48 | d | ||||
1961 | 30.30 | a | 32.07 | 38.16 | 43.97 | 59.29 | 70.83 | 74.23 | 74.59 | b | 56.53 | 53.37 | a | 36.81 | c | 25.41 | b | 49.63 | ||||||||
1962 | 24.20 | a | 33.61 | 33.93 | a | 50.93 | 58.90 | a | 68.10 | 74.37 | a | 75.20 | a | 68.59 | a | 58.07 | a | 43.73 | 32.94 | 51.88 | ||||||
1963 | 22.60 | a | 36.04 | a | 36.77 | 49.27 | 63.58 | 69.41 | a | 77.74 | 71.03 | 70.10 | 62.68 | 45.37 | 30.97 | a | 52.96 | |||||||||
1964 | 25.87 | 24.28 | 30.72 | b | 44.21 | a | 60.23 | 66.97 | 77.19 | 69.26 | 64.17 | 56.76 | b | 37.47 | 27.42 | 48.71 | ||||||||||
1965 | 30.17 | a | 29.39 | 27.77 | 46.80 | 57.37 | a | 66.48 | a | 72.57 | a | 69.90 | a | 57.73 | 60.10 | 42.63 | 33.83 | a | 49.56 | |||||||
1966 | 26.65 | 27.79 | 41.67 | a | 49.17 | 61.16 | 69.13 | 78.61 | 73.81 | 68.79 | a | 53.29 | 44.57 | 27.48 | 51.84 | |||||||||||
1967 | 29.19 | 29.93 | 41.71 | 49.33 | 55.47 | a | 64.17 | 73.74 | 72.65 | 66.10 | 56.00 | a | 40.79 | b | 24.90 | 50.33 | ||||||||||
1968 | 29.53 | a | 33.00 | 38.83 | a | 42.27 | 55.55 | 70.10 | a | 73.90 | 68.81 | 63.43 | 55.55 | b | 33.97 | a | 28.35 | 49.44 | ||||||||
1969 | 33.65 | 31.27 | b | 31.69 | b | 52.90 | a | 64.19 | 62.10 | a | 76.00 | a | 76.84 | 68.24 | a | 42.77 | 38.10 | 31.57 | a | 50.78 | ||||||
1970 | 27.87 | a | 35.56 | a | 35.87 | a | 41.38 | a | 60.19 | 67.28 | a | 74.65 | 75.74 | 63.50 | b | 46.10 | a | 37.14 | a | 30.81 | 49.67 | |||||
1971 | 29.06 | 28.54 | b | 36.26 | 48.83 | a | 56.81 | 70.50 | 74.26 | 74.97 | 61.07 | a | 54.37 | a | 39.04 | b | 26.16 | 49.99 | ||||||||
1972 | 27.84 | 34.41 | 45.70 | a | 50.00 | a | 58.60 | a | 68.72 | a | 74.57 | a | 73.03 | 64.30 | 53.40 | a | 33.18 | b | 26.93 | a | 50.89 | |||||
1973 | 25.61 | 30.43 | 36.87 | a | 41.37 | 56.52 | 66.37 | 71.80 | a | 73.03 | a | 64.03 | 56.03 | a | 39.77 | 29.79 | b | 49.30 | ||||||||
1974 | 25.07 | a | 29.78 | a | 41.39 | 45.41 | a | 63.48 | b | 70.73 | 74.65 | 72.87 | 66.07 | b | 55.86 | b | 39.11 | b | 27.71 | 51.01 | ||||||
1975 | 27.47 | a | 30.00 | 37.70 | a | 43.10 | 55.03 | 65.63 | 74.29 | 73.07 | a | 65.90 | 57.00 | a | 38.76 | a | 30.72 | f | 51.63 | a | ||||||
1976 | 28.17 | a | 37.00 | 36.94 | 50.23 | 59.87 | a | 68.00 | a | 77.03 | 72.68 | 65.36 | b | 53.32 | 40.60 | 32.26 | 51.79 | |||||||||
1977 | 29.39 | 36.96 | a | 37.03 | 52.27 | 59.97 | 74.90 | 75.90 | 72.41 | b | 67.57 | 56.23 | a | 40.14 | b | 30.90 | 52.81 | |||||||||
1978 | 29.74 | 31.46 | 42.26 | 49.47 | 56.30 | a | 69.27 | 76.26 | 72.77 | 67.10 | 57.06 | 39.72 | a | 22.81 | 51.19 | |||||||||||
1979 | 20.39 | 30.86 | 36.74 | 46.47 | 56.52 | 68.03 | a | 75.16 | 72.00 | 72.53 | 57.16 | 29.38 | a | 32.80 | a | 49.84 | ||||||||||
1980 | 30.26 | 33.90 | 34.29 | 44.73 | 57.45 | 72.63 | 77.19 | 74.06 | 68.55 | a | 54.13 | 41.38 | a | 42.79 | b | 52.61 | ||||||||||
1981 | 38.48 | 36.93 | a | 40.86 | b | 55.93 | b | 54.74 | 71.23 | 75.13 | a | 72.84 | 70.17 | 50.39 | c | 43.07 | a | 31.97 | a | 53.48 | ||||||
1982 | 28.37 | a | 31.61 | 39.79 | c | 46.14 | b | 56.00 | a | 67.31 | a | 75.00 | a | 75.06 | 64.00 | a | 50.87 | 34.83 | 30.46 | c | 49.95 | |||||
1983 | 33.81 | 34.89 | a | 39.03 | a | 40.54 | b | 53.55 | 65.07 | a | 73.52 | 75.90 | a | 69.40 | 56.83 | b | 40.03 | a | 26.41 | b | 50.75 | |||||
1984 | 26.69 | b | 31.86 | 36.58 | 42.59 | a | 60.45 | 65.30 | 75.06 | 72.69 | b | 65.33 | 46.26 | 38.80 | 31.03 | 49.39 | ||||||||||
1985 | 26.52 | 27.86 | 39.97 | 50.93 | b | 60.94 | 69.77 | d | 74.29 | 74.67 | a | 61.10 | 52.23 | 32.67 | 29.19 | 50.01 | ||||||||||
1986 | 34.16 | 32.21 | 43.32 | 48.37 | 58.32 | 72.11 | b | 72.00 | 73.97 | 61.24 | a | 52.00 | 35.63 | 31.40 | a | 51.23 | ||||||||||
1987 | 28.94 | 34.70 | a | 38.29 | 54.62 | a | 60.34 | b | 70.86 | a | 75.65 | 71.13 | 67.13 | 57.55 | 36.97 | 26.61 | 51.90 | |||||||||
1988 | 24.58 | 30.38 | 34.03 | 48.90 | a | 59.68 | 74.13 | 77.26 | 75.97 | 65.64 | b | 59.06 | 35.43 | 29.67 | a | 51.23 | ||||||||||
1989 | 28.65 | 26.89 | a | 42.58 | 52.57 | 62.35 | 68.57 | 78.03 | a | 71.52 | 67.55 | a | 55.24 | f | 39.77 | 28.23 | 51.52 | a | ||||||||
1990 | 30.94 | 30.32 | 39.97 | 51.53 | 59.42 | 73.17 | 72.87 | 74.26 | 70.47 | 53.52 | 40.03 | 25.84 | 51.86 | |||||||||||||
1991 | 26.61 | 37.21 | 37.48 | 44.30 | 61.90 | 69.90 | 73.77 | 74.23 | 66.97 | 55.65 | 33.60 | 31.19 | 51.07 | |||||||||||||
1992 | 29.94 | 34.59 | 41.71 | 56.00 | 62.45 | 67.31 | a | 71.10 | 72.29 | 67.40 | 58.63 | a | 29.80 | 26.77 | 51.50 | |||||||||||
1993 | 28.97 | 27.93 | 37.16 | 43.23 | 59.17 | a | 66.66 | a | 72.58 | 71.97 | 65.00 | 50.55 | 32.37 | 29.23 | 48.73 | |||||||||||
1994 | 29.06 | 30.54 | 42.26 | 49.57 | 64.45 | 74.43 | 77.90 | 76.29 | 67.80 | e | 52.23 | 37.07 | 32.84 | 52.87 | ||||||||||||
1995 | 29.55 | 38.36 | 40.68 | 46.63 | 52.29 | 66.03 | 72.23 | 76.65 | 65.60 | 53.43 | a | 41.23 | 31.32 | 51.17 | ||||||||||||
1996 | 26.94 | 32.62 | 37.32 | 46.73 | 62.26 | 70.37 | 75.94 | 75.87 | 63.63 | 53.26 | 39.80 | 28.29 | 51.09 | |||||||||||||
1997 | 27.68 | 27.59 | a | 42.19 | 41.07 | a | 58.81 | 69.87 | 74.81 | 72.23 | 67.00 | 53.33 | a | 36.53 | 28.87 | 50.00 | ||||||||||
1998 | 30.87 | 30.21 | 36.84 | 44.86 | a | 62.10 | 65.20 | 77.39 | 74.10 | 72.33 | 54.26 | 42.67 | 31.16 | 51.83 | ||||||||||||
1999 | 31.00 | 35.68 | 45.03 | 46.40 | 58.16 | 68.69 | a | 76.13 | 73.57 | a | 64.39 | b | 61.55 | 49.38 | a | 28.63 | a | 53.22 | ||||||||
2000 | 30.74 | 35.31 | 38.10 | 54.27 | 62.74 | 73.45 | a | 80.70 | a | 78.97 | a | 69.07 | 57.77 | a | 30.27 | 27.52 | 53.24 | |||||||||
2001 | 26.20 | a | 31.00 | 40.04 | d | 51.24 | a | 62.07 | a | 74.00 | c | 78.82 | c | 76.97 | b | 70.19 | d | 57.96 | d | 45.07 | c | 29.07 | c | 53.55 | ||
2002 | 29.21 | q | 29.33 | a | 34.72 | b | 55.90 | a | 63.03 | 77.67 | c | 82.45 | 77.78 | d | 67.70 | c | 53.69 | b | 34.83 | f | 30.68 | c | 57.30 | b | ||
2003 | 34.13 | a | 25.00 | x | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 34.13 | k |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 28.91 | 32.24 | 38.02 | 48.10 | 59.35 | 69.63 | 76.52 | 74.32 | 67.00 | 55.01 | 39.51 | 30.31 | 51.50 | |||||||||||||
S.D. | 3.73 | 3.96 | 4.26 | 4.45 | 3.40 | 3.51 | 2.59 | 2.60 | 3.54 | 4.26 | 4.59 | 4.12 | 1.56 | |||||||||||||
SKEW | -0.14 | 0.30 | 0.84 | 0.23 | -0.30 | 0.25 | 0.42 | 0.26 | -0.21 | -0.02 | 0.03 | 0.97 | 0.78 | |||||||||||||
MAX | 38.48 | 46.81 | 57.37 | 58.33 | 66.83 | 78.87 | 84.65 | 81.94 | 76.50 | 67.84 | 49.63 | 42.79 | 57.10 | |||||||||||||
MIN | 18.69 | 23.45 | 27.77 | 39.90 | 49.97 | 61.93 | 71.10 | 68.81 | 56.53 | 42.77 | 29.38 | 22.81 | 48.71 | |||||||||||||
YRS | 84 | 83 | 85 | 86 | 85 | 89 | 89 | 88 | 86 | 86 | 83 | 82 | 67 |