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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1913 | 32.76 | 40.16 | 44.19 | ----- | z | ----- | z | 75.53 | 79.42 | 75.56 | 65.53 | 58.44 | 51.23 | 38.32 | 56.12 | b | ||||||||||
1914 | 45.29 | 45.30 | 49.90 | 61.55 | 69.45 | 77.25 | 75.74 | 76.26 | 71.07 | 58.77 | 50.30 | 41.55 | 60.20 | |||||||||||||
1915 | 39.44 | 43.75 | 47.16 | 59.13 | 67.13 | 79.07 | 79.90 | 75.92 | a | 69.50 | 60.11 | 51.70 | 42.97 | b | 59.65 | |||||||||||
1916 | 48.73 | 52.54 | d | 58.95 | 58.62 | 66.10 | 80.53 | 78.77 | 75.97 | 69.68 | 57.33 | b | 47.48 | 41.44 | 61.34 | |||||||||||
1917 | 43.69 | 44.80 | 48.27 | 58.07 | 58.07 | a | 73.27 | 77.55 | 77.32 | 71.23 | 61.05 | 53.90 | 48.92 | 59.68 | ||||||||||||
1918 | 38.07 | b | 49.21 | 55.21 | 58.98 | 65.31 | 78.22 | 80.73 | 76.92 | 71.63 | 61.29 | 48.67 | 40.29 | 60.38 | ||||||||||||
1919 | 39.68 | 42.21 | 49.56 | 61.87 | 70.71 | 75.02 | 77.47 | 79.60 | 71.85 | 62.68 | a | 48.38 | 45.34 | 60.36 | ||||||||||||
1920 | 43.52 | 48.83 | 47.23 | 54.67 | 70.11 | 73.88 | 79.58 | 73.69 | 72.29 | a | 60.71 | 48.22 | 40.76 | 59.46 | ||||||||||||
1921 | 43.79 | 47.86 | 54.31 | 55.33 | 68.81 | 77.17 | 77.53 | 78.18 | 73.52 | 62.97 | 48.68 | 46.84 | 61.25 | |||||||||||||
1922 | 41.18 | 44.07 | 52.10 | 58.97 | 70.00 | 79.20 | 80.77 | 80.48 | 74.28 | 62.21 | 49.43 | 47.42 | 61.68 | |||||||||||||
1923 | 47.73 | 46.25 | 50.34 | 61.38 | 71.32 | 79.22 | 80.65 | 76.66 | 70.95 | 61.65 | 49.29 | a | 41.76 | 61.43 | ||||||||||||
1924 | 40.77 | 47.95 | 50.47 | 59.77 | 70.06 | 82.97 | 81.00 | 81.52 | 72.87 | 64.06 | 54.83 | 39.43 | a | 62.14 | ||||||||||||
1925 | 39.13 | 50.02 | 56.31 | 64.77 | 71.00 | 78.00 | 81.15 | 75.97 | 74.17 | 62.47 | 49.90 | 40.08 | 61.91 | |||||||||||||
1926 | 38.52 | 49.91 | 50.95 | 58.73 | 67.85 | 77.97 | 77.87 | 78.26 | 74.83 | 63.47 | 50.93 | 44.29 | 61.13 | |||||||||||||
1927 | 47.77 | a | 52.61 | 53.77 | 62.25 | 72.08 | 77.25 | 81.23 | 78.25 | a | 72.82 | 63.27 | 58.00 | 42.15 | a | 63.45 | ||||||||||
1928 | 44.98 | 46.00 | 56.92 | 59.78 | 70.02 | a | 79.00 | 81.21 | 76.60 | 72.52 | 66.05 | 49.83 | 44.18 | 62.26 | ||||||||||||
1929 | 44.73 | 44.61 | 51.70 | a | 62.53 | 68.74 | 79.95 | 79.37 | 77.48 | 74.98 | b | 62.82 | 45.85 | 43.84 | 61.38 | |||||||||||
1930 | 41.61 | 51.64 | 50.89 | 65.20 | 67.76 | 78.57 | 79.77 | 78.97 | 74.68 | 65.16 | 49.10 | 40.66 | 62.00 | |||||||||||||
1931 | 42.47 | 49.07 | 52.05 | 60.30 | 69.18 | 79.48 | 80.74 | 77.15 | 77.23 | 66.65 | 52.55 | 43.58 | 62.54 | |||||||||||||
1932 | 41.17 | b | 51.97 | 51.39 | 61.45 | 70.06 | 70.60 | y | ----- | z | 79.08 | 70.72 | a | 60.73 | 50.18 | 42.35 | 57.91 | b | ||||||||
1933 | 42.40 | 44.00 | 57.06 | 58.50 | 69.18 | c | 77.67 | 81.79 | 81.20 | a | 77.23 | 66.58 | 54.00 | 49.67 | a | 63.27 | ||||||||||
1934 | 44.92 | 51.84 | 59.04 | c | 67.00 | 74.77 | 81.92 | 85.68 | 86.48 | 75.55 | 66.55 | 53.27 | 47.84 | 66.24 | ||||||||||||
1935 | 46.81 | 46.64 | 56.02 | 60.52 | i | 63.80 | p | 74.00 | 78.34 | 75.82 | 67.78 | 62.52 | 48.92 | 41.02 | 59.79 | b | ||||||||||
1936 | 39.87 | 46.07 | 53.77 | 60.60 | 68.45 | 76.90 | 77.50 | a | 76.48 | 70.33 | 59.40 | a | 47.33 | 41.65 | 59.86 | |||||||||||
1937 | 38.21 | 44.25 | 48.90 | 60.10 | a | 69.39 | 76.27 | 78.73 | 78.31 | 72.63 | 61.92 | 50.32 | 43.69 | 60.23 | ||||||||||||
1938 | 42.60 | 48.95 | 52.00 | 59.07 | 65.77 | 75.63 | 76.13 | 77.11 | 69.43 | 63.35 | 45.80 | 43.94 | 59.98 | |||||||||||||
1939 | 40.85 | 39.05 | 52.68 | 59.22 | a | 68.60 | 77.23 | 77.95 | 74.52 | 71.30 | 58.03 | 47.70 | 45.00 | 59.35 | ||||||||||||
1940 | 38.10 | 45.19 | 52.39 | 59.50 | 68.65 | 74.03 | 78.42 | 76.22 | a | 72.33 | 62.21 | 47.05 | 46.31 | 60.03 | ||||||||||||
1941 | 43.95 | 48.07 | 49.19 | 55.72 | 67.90 | 73.08 | 75.92 | 74.63 | 70.58 | 60.06 | 49.17 | 43.08 | 59.28 | |||||||||||||
1942 | 42.16 | 45.47 | m | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 42.16 | k | |
1943 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 51.31 | q | 36.91 | b | 36.91 | k |
1944 | 39.00 | f | 44.29 | a | 52.62 | c | 59.26 | a | 70.94 | 81.56 | c | 81.60 | b | 77.11 | 70.02 | 62.58 | 48.12 | 41.02 | 62.65 | a | ||||||
1945 | 43.40 | 49.64 | 52.81 | 61.55 | b | 74.35 | 78.85 | 77.21 | 76.27 | 72.07 | a | 58.74 | 52.40 | 38.13 | 61.29 | |||||||||||
1946 | 35.11 | 43.09 | 50.65 | 64.70 | 69.11 | 80.48 | 79.08 | a | 79.45 | 75.02 | 64.48 | c | 45.80 | 46.47 | a | 61.12 | ||||||||||
1947 | 38.84 | b | 47.36 | 53.35 | 59.85 | 71.47 | 76.17 | 82.33 | m | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 57.84 | f | |||||
1948 | 38.80 | a | 45.97 | 48.29 | 60.64 | s | 71.03 | 78.38 | 80.03 | n | 80.74 | 72.90 | 60.00 | 44.83 | 44.81 | 58.58 | b | |||||||||
1949 | 36.90 | a | 45.79 | 55.82 | 59.95 | 70.45 | 80.33 | f | 80.58 | 78.52 | 73.11 | g | 60.02 | 54.47 | l | 44.58 | l | 61.00 | d | |||||||
1950 | 47.27 | 51.39 | 55.24 | 63.05 | a | 71.74 | h | 80.65 | 78.94 | 79.03 | 72.35 | 69.08 | 53.75 | 48.05 | 63.53 | a | ||||||||||
1951 | 43.31 | 49.24 | i | 52.69 | e | 60.82 | 67.53 | 79.25 | 85.35 | 81.37 | 76.18 | 67.48 | f | 50.83 | 47.46 | e | 64.48 | b | ||||||||
1952 | 49.53 | 45.60 | 48.19 | 60.63 | 69.63 | a | 80.85 | 81.16 | 84.05 | 76.88 | 58.35 | 46.02 | 41.57 | d | 61.87 | |||||||||||
1953 | 47.31 | 43.82 | ----- | z | 60.00 | u | 64.71 | 80.62 | 81.17 | a | 78.68 | a | 73.00 | 60.31 | 49.42 | 36.07 | d | 61.51 | b | |||||||
1954 | 43.79 | 49.46 | 50.63 | a | 65.06 | c | 69.37 | 77.21 | a | 80.66 | 82.71 | 78.93 | a | 64.65 | 51.78 | a | 43.65 | 63.16 | ||||||||
1955 | 39.28 | a | 43.90 | g | 52.00 | 59.55 | 66.58 | a | 76.85 | 76.13 | 76.52 | 74.35 | 62.53 | 50.03 | 44.56 | 61.67 | a | |||||||||
1956 | 45.95 | 43.09 | 53.42 | ----- | z | 71.73 | e | 80.30 | 77.92 | 79.39 | 74.30 | 63.84 | 46.08 | 42.08 | 61.65 | a | ||||||||||
1957 | 46.02 | g | 55.80 | 51.12 | g | 60.05 | ----- | z | 78.64 | a | 81.85 | a | 77.97 | b | 70.42 | 58.75 | a | 46.05 | 42.58 | 63.57 | c | |||||
1958 | 38.66 | 48.17 | a | 51.69 | o | 58.13 | 69.97 | 80.57 | 81.63 | 79.26 | 71.97 | 60.00 | 49.90 | 43.45 | 61.97 | a | ||||||||||
1959 | 42.84 | 45.50 | 50.53 | 61.28 | 69.60 | 80.27 | 80.60 | j | 78.16 | 74.32 | 62.42 | 46.17 | 43.76 | 59.53 | a | |||||||||||
1960 | 38.97 | 40.79 | 54.29 | 61.32 | 68.44 | 80.87 | 77.69 | 79.82 | 73.47 | 61.18 | 51.23 | 38.15 | 60.52 | |||||||||||||
1961 | 39.68 | 45.21 | 52.27 | 60.67 | 71.23 | 77.45 | 79.44 | 76.03 | 69.35 | 60.82 | 46.82 | 43.58 | 60.21 | |||||||||||||
1962 | 38.45 | 50.52 | 47.40 | 62.20 | 71.10 | 77.88 | 78.44 | 80.37 | 71.73 | 62.13 | 51.60 | 43.31 | 61.26 | |||||||||||||
1963 | 38.72 | a | 47.07 | 53.06 | ----- | z | 72.85 | 78.34 | a | 82.24 | 76.92 | 72.55 | 64.40 | 50.65 | 40.63 | 61.59 | a | |||||||||
1964 | 37.21 | 38.29 | 49.97 | 59.57 | 71.03 | 78.87 | 81.68 | 78.37 | 72.98 | 62.85 | 49.91 | a | 41.29 | 60.17 | ||||||||||||
1965 | 44.77 | 43.57 | 49.10 | 62.17 | 69.03 | 76.08 | 81.15 | 76.53 | a | 70.65 | 60.81 | 54.90 | 43.48 | 61.02 | ||||||||||||
1966 | 37.61 | 40.11 | 52.52 | 61.55 | 71.21 | 77.83 | 81.13 | 77.18 | 72.17 | 62.05 | 54.45 | 42.03 | 60.82 | |||||||||||||
1967 | 41.18 | a | 47.30 | 58.69 | 64.53 | 68.79 | 77.92 | 80.37 | 75.85 | 71.85 | 62.92 | 51.78 | 39.35 | 61.71 | ||||||||||||
1968 | 41.47 | 48.07 | 51.63 | 58.45 | 70.06 | 79.33 | 78.11 | 74.44 | 71.15 | 64.76 | 49.27 | 40.19 | 60.58 | |||||||||||||
1969 | 47.60 | 46.86 | 48.00 | 64.25 | 71.24 | 78.95 | 82.23 | 81.18 | 71.26 | a | 62.13 | 48.52 | 44.44 | 62.22 | ||||||||||||
1970 | 42.19 | 47.18 | 49.10 | 58.55 | 69.87 | 76.57 | 80.82 | 78.76 | 73.00 | 58.15 | a | 50.80 | 46.79 | 60.98 | ||||||||||||
1971 | 45.20 | a | 45.68 | 54.52 | 59.68 | 68.85 | 78.32 | 81.02 | 74.37 | 72.78 | 61.03 | a | 50.80 | 43.27 | 61.29 | |||||||||||
1972 | 43.16 | 48.12 | 58.94 | 63.85 | 69.79 | 77.45 | 80.50 | 75.94 | 69.80 | ----- | z | 46.55 | h | 42.34 | o | 65.28 | c | |||||||||
1973 | 39.44 | 43.35 | b | 49.06 | 55.53 | 68.16 | 77.05 | 79.10 | 77.98 | 73.93 | 63.45 | 54.15 | 43.97 | a | 60.43 | |||||||||||
1974 | 45.68 | 45.29 | 59.69 | 62.28 | 73.89 | 80.32 | 78.28 | a | 75.82 | c | 70.54 | b | 62.27 | 50.33 | c | 40.43 | a | 62.07 | ||||||||
1975 | 41.76 | 46.43 | 53.71 | 56.80 | 67.09 | b | 78.27 | 76.56 | 78.50 | 70.18 | 63.56 | 52.48 | d | 42.35 | 60.64 | |||||||||||
1976 | 42.87 | a | 53.80 | a | 56.34 | b | 62.90 | a | 68.45 | a | 79.15 | 76.02 | a | 77.15 | 71.18 | 57.74 | 46.02 | 41.65 | a | 61.11 | ||||||
1977 | 42.07 | a | 46.72 | a | 50.45 | 60.63 | 69.53 | 80.18 | 80.09 | c | 81.27 | 75.86 | a | 64.50 | b | 53.43 | 47.62 | b | 62.70 | |||||||
1978 | 44.50 | c | 45.80 | 56.69 | 63.94 | e | 70.71 | b | 80.23 | 82.27 | ----- | z | 70.33 | a | 63.08 | 52.53 | ----- | z | 63.01 | b | ||||||
1979 | 40.02 | 47.02 | 52.63 | ----- | z | ----- | z | 75.93 | 80.98 | 74.48 | 71.07 | 64.95 | 47.05 | 42.92 | 59.71 | b | ||||||||||
1980 | 46.71 | 48.78 | 52.10 | 58.72 | 68.13 | 83.92 | 83.66 | 77.84 | 71.13 | 58.40 | 48.95 | a | 47.32 | a | 62.14 | |||||||||||
1981 | 43.38 | a | 49.21 | 51.27 | 64.60 | a | 69.73 | 80.72 | 81.34 | 75.19 | 71.64 | a | 62.60 | 54.03 | a | 47.00 | 62.56 | |||||||||
1982 | 44.82 | c | 48.66 | c | 55.72 | a | 63.23 | 68.00 | a | 78.60 | a | 82.55 | a | 79.69 | 73.09 | b | 60.74 | 49.84 | a | 40.96 | c | 62.16 | ||||
1983 | 41.45 | 47.45 | 53.38 | a | 55.16 | b | 67.18 | 76.32 | 81.26 | 79.97 | 76.35 | 63.68 | 50.80 | b | 42.53 | b | 61.29 | |||||||||
1984 | 42.48 | 45.86 | 53.97 | 60.50 | 74.29 | 77.00 | 79.10 | 75.66 | 72.27 | b | 58.23 | 50.27 | 44.43 | a | 61.17 | |||||||||||
1985 | 39.34 | 45.34 | 54.10 | 62.57 | 70.42 | 77.95 | 79.50 | 79.39 | 70.43 | 60.89 | 52.64 | a | 43.19 | 61.31 | ||||||||||||
1986 | 46.16 | 50.71 | 55.32 | 65.57 | 69.21 | 77.13 | 77.68 | 78.84 | 71.68 | 60.50 | 48.22 | 41.24 | 61.86 | |||||||||||||
1987 | 40.98 | 45.93 | a | 50.50 | 59.08 | 67.56 | 75.72 | 80.21 | 76.77 | 70.30 | 65.84 | 50.27 | 40.33 | a | 60.29 | |||||||||||
1988 | 41.45 | 48.48 | 52.47 | 60.37 | 69.27 | 77.68 | 78.52 | 75.26 | 70.55 | 65.13 | 52.88 | 40.66 | 61.06 | |||||||||||||
1989 | 42.97 | 49.21 | 57.05 | 67.31 | a | 73.48 | 80.13 | 81.16 | 77.50 | 71.37 | 62.58 | 51.72 | a | 39.47 | 62.83 | |||||||||||
1990 | 42.27 | 44.73 | b | 53.74 | 63.12 | 69.61 | 84.05 | 77.26 | 74.84 | 71.62 | 61.32 | 51.38 | a | 42.70 | a | 61.39 | ||||||||||
1991 | 41.85 | 49.23 | 51.90 | 61.50 | 71.11 | 78.03 | a | 77.03 | 76.02 | 68.45 | 63.58 | 48.20 | 42.85 | 60.81 | ||||||||||||
1992 | 38.47 | 47.57 | a | 53.87 | 63.19 | a | 66.82 | a | 75.62 | 79.76 | 77.52 | 74.13 | 64.75 | a | 46.03 | 41.38 | a | 60.76 | ||||||||
1993 | 44.97 | a | 47.29 | 53.56 | 61.92 | 69.50 | 78.62 | 80.71 | 78.45 | 72.63 | 60.66 | 48.72 | 42.84 | 61.66 | ||||||||||||
1994 | 42.47 | 46.45 | 54.42 | 62.03 | 69.95 | 83.38 | 83.02 | 81.68 | a | 73.50 | 62.66 | 50.96 | c | 46.32 | 63.07 | |||||||||||
1995 | 43.93 | a | 52.54 | 55.67 | a | 58.63 | 69.37 | a | 77.67 | 80.39 | 79.87 | 72.15 | 64.16 | 54.25 | 45.67 | a | 62.86 | |||||||||
1996 | 44.68 | a | 52.96 | a | 52.90 | 63.12 | a | 75.84 | 81.31 | a | 80.92 | 78.21 | 70.72 | 62.97 | 52.50 | a | 45.10 | 63.44 | ||||||||
1997 | 42.66 | b | 46.72 | c | 57.10 | a | 58.53 | a | 70.89 | 78.00 | 80.57 | a | 78.52 | 76.03 | a | 61.53 | 50.43 | 39.60 | a | 61.71 | ||||||
1998 | 45.40 | 45.14 | 52.52 | a | 57.67 | a | 72.00 | 78.79 | a | 80.52 | a | 78.47 | 77.83 | 63.17 | a | 53.35 | 43.97 | a | 62.40 | |||||||
1999 | 46.69 | 51.30 | 55.82 | a | 60.72 | a | 70.82 | a | 77.45 | 79.19 | 79.23 | a | 73.22 | ----- | z | 55.62 | b | 42.20 | a | 62.93 | a | |||||
2000 | 46.04 | c | ----- | z | 54.70 | a | 66.02 | a | 76.90 | b | 78.59 | a | 82.68 | a | 80.73 | 77.20 | b | ----- | z | ----- | z | ----- | z | 70.36 | d | |
2001 | 40.83 | b | 49.00 | c | ----- | z | 62.31 | d | 72.65 | ----- | z | 82.81 | ----- | z | ----- | z | ----- | z | 53.27 | b | 42.41 | c | 57.61 | e | ||
2002 | 43.06 | f | ----- | z | ----- | z | 67.40 | 71.18 | 83.63 | 81.10 | 82.23 | ----- | z | 60.48 | a | 50.57 | c | 41.57 | a | 67.27 | d | |||||
2003 | 46.92 | a | ----- | z | 54.02 | b | 61.57 | a | 73.55 | a | 78.55 | 83.16 | 81.20 | a | 75.12 | a | 67.87 | a | 53.00 | d | 43.48 | j | 67.50 | b | ||
2004 | 46.42 | 45.77 | a | 58.48 | a | 61.32 | 73.09 | b | 79.71 | a | 81.11 | 77.11 | 71.88 | 63.00 | a | 48.70 | 44.05 | 62.55 | ||||||||
2005 | 48.43 | a | 47.05 | 52.47 | a | 61.39 | b | 72.16 | b | 81.23 | 83.31 | 78.08 | 77.23 | 63.56 | 55.58 | 47.35 | 63.99 | |||||||||
2006 | 48.05 | a | 51.11 | 56.00 | 66.88 | 75.58 | 81.68 | 81.55 | 74.95 | 68.97 | 61.56 | 54.98 | a | 42.34 | b | 63.64 | ||||||||||
2007 | 40.05 | 48.50 | 56.77 | 62.78 | ----- | z | ----- | z | ----- | z | ----- | z | 75.00 | t | 65.27 | t | 53.12 | m | 45.05 | k | 52.03 | h | ||||
2008 | 43.48 | k | 49.93 | h | 56.05 | l | 63.18 | k | 70.21 | s | 83.29 | m | 77.75 | u | 78.94 | v | 70.31 | n | 63.37 | p | 54.65 | q | 47.97 | n | ----- | z |
2009 | 47.43 | p | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 42.51 | 47.09 | 52.92 | 61.08 | 69.91 | 78.51 | 80.03 | 78.02 | 72.52 | 62.22 | 50.42 | 43.01 | 61.48 | |||||||||||||
S.D. | 3.35 | 3.29 | 3.14 | 2.78 | 2.65 | 2.29 | 2.07 | 2.34 | 2.44 | 2.40 | 2.78 | 2.75 | 1.26 | |||||||||||||
SKEW | -0.13 | -0.10 | -0.04 | 0.11 | -0.59 | 0.09 | 0.02 | 0.73 | 0.32 | 0.19 | 0.14 | 0.14 | 0.81 | |||||||||||||
MAX | 49.53 | 55.80 | 59.69 | 67.40 | 76.90 | 84.05 | 85.68 | 86.48 | 78.93 | 69.08 | 58.00 | 49.67 | 66.24 | |||||||||||||
MIN | 32.76 | 38.29 | 44.19 | 54.67 | 58.07 | 73.08 | 75.74 | 73.69 | 65.53 | 57.33 | 44.83 | 36.07 | 59.28 | |||||||||||||
YRS | 91 | 88 | 88 | 86 | 87 | 89 | 88 | 89 | 88 | 86 | 88 | 87 | 68 |