YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1914 | ----- | z | 35.64 | 43.74 | 45.95 | 54.06 | 55.52 | 67.13 | 67.42 | 55.95 | 49.89 | 42.08 | 24.03 | 49.22 | a | |||||||||||
1915 | 31.72 | a | 37.32 | 42.31 | 49.50 | 51.11 | i | 56.28 | a | 62.73 | 69.36 | b | 51.73 | 50.35 | 39.25 | 35.23 | 47.80 | a | ||||||||
1916 | 29.15 | a | 40.74 | 45.15 | 48.65 | 47.82 | 56.57 | 62.60 | 63.60 | 58.30 | 45.72 | d | 36.77 | 28.18 | 46.94 | |||||||||||
1917 | 23.73 | 32.25 | 30.02 | 41.97 | 48.53 | 57.83 | 69.18 | 66.50 | 60.17 | 49.98 | 42.68 | b | 41.79 | 47.05 | ||||||||||||
1918 | 36.02 | 33.43 | 40.26 | 42.58 | 48.79 | 65.67 | 66.74 | 60.47 | 58.95 | 49.00 | 36.88 | 29.94 | 47.39 | |||||||||||||
1919 | 30.73 | 31.14 | 36.85 | 47.75 | 55.08 | a | 60.07 | 68.53 | 68.21 | 56.75 | 41.00 | 35.42 | 26.05 | 46.47 | ||||||||||||
1920 | 34.82 | 32.33 | 37.11 | 41.48 | a | 49.21 | 56.77 | 65.05 | 64.92 | 58.15 | 45.26 | 36.85 | 32.66 | 46.22 | ||||||||||||
1921 | 30.15 | 35.98 | 43.03 | 44.28 | 49.18 | 59.53 | 64.37 | 65.63 | 52.77 | 50.32 | 41.82 | 33.31 | 47.53 | |||||||||||||
1922 | 22.56 | 27.88 | 33.53 | 40.00 | 51.65 | 62.35 | 68.44 | 64.92 | 60.75 | 48.81 | 34.40 | 33.00 | 45.69 | |||||||||||||
1923 | 32.63 | 31.39 | 38.29 | 46.10 | 51.27 | a | 54.58 | 65.03 | 64.97 | 58.37 | 44.55 | 37.72 | 30.16 | b | 46.25 | |||||||||||
1924 | 29.58 | 40.57 | 35.63 | 45.72 | 56.24 | 59.33 | 66.69 | 62.77 | 59.53 | 46.40 | 38.47 | 25.27 | 47.18 | |||||||||||||
1925 | 35.52 | 38.91 | a | 41.98 | b | 46.77 | 54.32 | 59.23 | 69.55 | 64.58 | 55.62 | 46.29 | 39.02 | 34.07 | b | 48.82 | ||||||||||
1926 | 31.15 | 40.55 | 42.71 | 51.42 | 52.85 | 64.45 | 65.71 | ----- | z | 51.92 | 51.73 | 44.67 | 31.66 | 48.07 | a | |||||||||||
1927 | 34.18 | 35.23 | 39.56 | 43.32 | 48.81 | 59.32 | 66.15 | 63.92 | 54.10 | 49.77 | 42.98 | 27.98 | 47.11 | |||||||||||||
1928 | 37.64 | b | 36.21 | 42.61 | 43.18 | 56.42 | 57.35 | 67.50 | 63.65 | 58.38 | 47.05 | 39.05 | 28.39 | 48.12 | ||||||||||||
1929 | 27.66 | b | 29.48 | 40.63 | 40.57 | 52.02 | 57.60 | 67.02 | 69.16 | 51.95 | 49.16 | 36.23 | 38.69 | 46.68 | ||||||||||||
1930 | 19.58 | a | 41.09 | 40.53 | a | 49.48 | 49.53 | 58.37 | 66.85 | 65.92 | 56.03 | 47.06 | 36.73 | 28.61 | 46.65 | |||||||||||
1931 | 34.50 | 34.36 | 41.56 | 46.37 | 58.58 | 59.17 | 70.08 | 68.63 | 55.52 | 46.98 | 34.20 | 30.42 | a | 48.36 | ||||||||||||
1932 | 28.40 | a | 30.10 | 40.50 | 44.22 | 51.22 | b | 60.09 | a | 63.90 | 61.60 | 57.42 | 46.90 | a | 44.22 | a | 22.63 | 45.93 | ||||||||
1933 | 27.77 | 26.70 | a | 38.13 | 43.20 | 45.82 | 59.55 | 67.95 | b | 64.74 | 55.63 | 51.23 | a | 39.28 | 40.16 | 46.68 | ||||||||||
1934 | 37.85 | 39.20 | 47.58 | 51.15 | 56.33 | a | 57.27 | 67.29 | 67.40 | 56.85 | 51.40 | b | 42.48 | 32.06 | 50.57 | |||||||||||
1935 | 32.92 | 36.11 | 35.34 | 44.60 | 49.55 | 59.38 | 64.95 | 64.80 | a | 59.63 | 44.94 | 32.33 | 30.89 | 46.29 | ||||||||||||
1936 | 32.05 | 34.29 | 39.34 | 49.13 | 53.56 | 60.55 | a | 67.44 | 67.40 | 55.10 | 48.18 | 34.57 | 31.47 | 47.76 | ||||||||||||
1937 | 14.21 | c | 30.12 | 39.15 | 43.05 | 54.02 | 58.52 | 67.19 | 62.92 | 58.40 | 50.53 | 41.22 | 35.98 | 46.28 | ||||||||||||
1938 | 30.84 | 31.79 | 34.90 | 45.37 | 50.87 | 58.67 | 67.41 | d | 63.76 | 58.83 | 47.82 | 33.13 | 33.27 | 46.39 | ||||||||||||
1939 | 33.18 | 29.07 | 39.35 | 49.37 | 53.34 | 56.08 | 67.69 | 66.98 | 57.33 | 47.06 | 38.43 | 39.21 | b | 48.09 | ||||||||||||
1940 | 34.60 | 36.71 | 41.19 | 45.97 | 55.05 | 62.43 | 64.87 | 66.13 | 56.14 | a | 49.69 | b | 34.82 | 33.81 | 48.45 | |||||||||||
1941 | 33.56 | 37.71 | 40.76 | 43.32 | 52.10 | a | 57.08 | 67.40 | 62.07 | a | 52.25 | 46.15 | 42.25 | 33.21 | b | 47.32 | ||||||||||
1942 | 27.69 | 31.79 | 37.94 | 45.27 | 48.66 | 56.74 | a | 67.92 | 65.37 | 56.98 | 50.08 | 39.30 | 34.29 | 46.84 | ||||||||||||
1943 | 28.82 | 35.52 | 39.58 | 48.52 | a | 48.85 | 53.27 | 65.19 | 61.44 | 61.57 | 47.81 | 38.65 | 28.90 | 46.51 | ||||||||||||
1944 | 28.95 | 33.02 | 37.50 | 42.68 | 50.77 | 54.07 | 63.23 | 62.35 | 56.90 | 50.60 | 33.62 | 31.40 | 45.42 | |||||||||||||
1945 | 33.42 | 35.04 | 36.60 | 42.58 | 51.44 | 56.80 | 66.75 | a | 64.24 | 54.77 | 51.06 | 38.03 | 30.47 | 46.77 | ||||||||||||
1946 | 30.26 | 32.20 | 39.69 | 46.83 | 51.63 | 57.05 | 64.68 | a | 65.11 | 55.68 | 42.16 | 35.63 | 34.71 | 46.30 | ||||||||||||
1947 | 28.47 | 38.45 | 41.00 | a | 46.74 | a | 56.81 | 56.12 | 64.55 | 63.08 | a | 57.17 | 50.87 | 35.70 | 34.24 | 47.77 | ||||||||||
1948 | 32.66 | 30.81 | 34.98 | a | 41.24 | a | 50.35 | u | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 35.57 | 26.69 | 33.66 | f | ||||
1949 | 11.53 | 29.42 | c | 37.72 | a | 46.97 | 52.56 | 56.75 | 64.32 | c | 63.97 | a | 57.81 | a | 39.85 | a | 42.76 | a | 30.12 | c | 44.48 | |||||
1950 | 26.42 | a | 34.50 | 36.69 | 43.27 | b | 48.25 | a | 55.65 | c | 64.96 | d | 64.64 | c | 56.60 | e | 50.63 | e | 43.24 | g | 39.79 | e | 47.40 | a | ||
1951 | 28.59 | b | 33.82 | 33.05 | 46.03 | a | 50.47 | 61.11 | p | 65.83 | e | 62.00 | a | 58.10 | 46.03 | 37.07 | 25.12 | b | 44.19 | a | ||||||
1952 | 23.68 | l | ----- | z | ----- | z | ----- | z | ----- | z | 55.07 | g | 68.69 | j | 63.50 | a | 58.90 | a | 50.58 | a | 31.69 | a | 31.32 | 47.20 | g | |
1953 | 39.23 | 34.68 | 37.72 | a | 42.22 | 44.69 | b | 52.47 | 64.23 | a | 62.87 | e | 58.78 | 45.88 | a | 42.43 | 32.74 | 46.49 | ||||||||
1954 | 30.62 | a | 35.62 | 32.16 | b | 43.91 | a | 51.38 | a | 53.28 | 64.40 | a | 56.68 | 50.48 | a | 44.69 | 39.63 | 29.90 | a | 44.40 | ||||||
1955 | 24.29 | 28.73 | 35.50 | b | 37.78 | e | 49.28 | b | 59.73 | b | 62.65 | a | 64.52 | 54.84 | a | 49.58 | 34.53 | a | 32.77 | 44.52 | ||||||
1956 | 32.95 | 26.43 | 38.02 | 45.32 | 52.16 | b | 56.03 | a | 65.74 | ----- | z | 52.88 | r | 47.05 | j | 35.60 | 32.08 | 42.70 | c | |||||||
1957 | 22.71 | 34.59 | 40.75 | a | 43.97 | a | 51.74 | 58.77 | 61.95 | 59.53 | 58.77 | 44.55 | 33.75 | 36.48 | 45.63 | |||||||||||
1958 | 33.94 | 40.54 | a | 34.72 | a | 43.98 | 57.33 | a | 59.95 | b | 65.91 | b | 67.05 | a | 56.22 | 50.81 | 40.58 | 40.89 | 49.33 | |||||||
1959 | 36.53 | b | 33.79 | 39.52 | 47.63 | 48.42 | 61.37 | 68.10 | a | 62.39 | 55.19 | a | 48.35 | 38.78 | 28.79 | 47.41 | ||||||||||
1960 | 27.43 | a | 31.90 | 40.52 | 44.67 | 48.97 | 60.33 | a | 69.27 | 62.15 | 57.72 | 47.85 | 35.80 | 33.32 | 46.66 | |||||||||||
1961 | 33.90 | 38.36 | 38.84 | 44.05 | 49.44 | d | 64.26 | a | 66.45 | a | 68.05 | 51.18 | 45.95 | 33.56 | c | 31.78 | a | 47.15 | ||||||||
1962 | 23.42 | a | 31.18 | 35.74 | 49.83 | 50.77 | 59.23 | 64.27 | 64.12 | a | 59.87 | 48.87 | 41.82 | 37.00 | 47.18 | |||||||||||
1963 | 28.40 | 42.38 | 37.63 | 40.55 | 52.94 | 56.60 | 60.82 | a | 61.73 | 60.85 | 50.03 | 40.60 | 35.65 | 47.35 | ||||||||||||
1964 | 31.18 | a | 31.21 | 34.26 | 41.43 | 48.50 | a | 55.95 | 65.77 | a | 63.73 | a | 54.09 | a | 50.42 | a | 36.18 | 33.95 | a | 45.56 | ||||||
1965 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1966 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1967 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1968 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1969 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1970 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1971 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1972 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1973 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1974 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1975 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1976 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1977 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1978 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1979 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1980 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1981 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1982 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1983 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 38.35 | f | 29.24 | b | 29.24 | k |
1984 | 31.00 | 32.91 | 40.76 | b | 41.19 | a | 51.62 | a | 55.07 | 67.02 | a | 66.42 | 54.73 | b | 43.18 | a | ----- | z | ----- | z | 48.39 | b | ||||
1985 | ----- | z | 31.26 | k | 34.55 | k | 46.92 | e | 49.85 | e | 63.24 | i | 71.29 | c | 60.27 | p | 50.02 | h | 46.00 | j | 28.30 | e | 30.62 | e | 45.39 | g |
1986 | 36.89 | d | 35.80 | c | 46.12 | f | 41.08 | e | 53.73 | k | 67.63 | d | 64.76 | d | 70.16 | b | 52.94 | d | 49.19 | d | 39.46 | g | 34.40 | f | 52.31 | d |
1987 | 30.48 | g | 41.74 | c | 43.34 | i | 51.17 | g | 58.02 | h | 60.58 | f | 63.52 | c | 63.86 | b | 57.33 | f | 54.79 | 40.55 | b | 28.88 | g | 52.89 | g | |
1988 | 32.98 | e | ----- | z | 41.79 | b | 48.58 | 54.40 | g | 64.81 | d | 71.34 | b | 66.93 | d | 56.53 | a | 57.22 | a | 42.83 | c | 31.84 | i | 53.67 | c | |
1989 | 28.50 | k | 29.18 | k | 42.35 | n | 51.36 | e | 51.89 | d | ----- | z | 69.00 | c | 59.60 | a | 57.62 | a | 45.89 | c | 38.65 | c | 33.13 | h | 53.43 | e |
1990 | 37.42 | g | 32.17 | d | 40.82 | c | 51.73 | b | ----- | z | 60.28 | c | 71.15 | e | 64.23 | e | 63.48 | e | 47.40 | e | 39.85 | f | 28.65 | k | 53.91 | d |
1991 | 29.40 | u | 44.42 | c | 42.35 | d | 42.52 | e | 50.28 | b | 59.79 | a | 67.76 | 71.21 | 61.08 | 52.83 | d | 42.83 | c | 33.12 | f | 53.51 | b | |||
1992 | ----- | z | 39.56 | d | 51.81 | b | 51.36 | b | 63.72 | a | 67.97 | 65.21 | 65.92 | a | 56.64 | b | ----- | z | 44.66 | a | 29.44 | e | 53.63 | b | ||
1993 | 27.31 | b | 33.91 | 39.12 | e | 43.65 | c | 55.29 | c | 55.90 | a | 57.69 | b | 64.74 | 61.11 | b | 50.78 | b | 32.21 | k | 30.64 | c | 47.28 | a | ||
1994 | 33.27 | a | 30.56 | s | 41.38 | c | 47.75 | b | 55.05 | c | 59.70 | c | 71.59 | b | 66.43 | a | 59.67 | 51.55 | 32.15 | c | 30.42 | e | 49.90 | a | ||
1995 | 38.93 | b | 43.96 | e | 42.48 | d | 42.08 | f | 53.26 | b | 60.39 | b | 67.55 | 67.48 | b | 61.50 | 51.74 | 49.03 | 41.13 | a | 52.50 | a | ||||
1996 | 36.97 | b | 34.14 | a | 44.59 | b | 48.54 | b | 50.38 | a | 61.79 | a | 72.52 | 66.39 | 55.89 | c | 53.39 | ----- | z | 32.18 | q | 52.46 | b | |||
1997 | ----- | z | 32.56 | s | 40.10 | b | 39.67 | j | 56.86 | b | 57.24 | e | 65.37 | a | 66.10 | 57.38 | 43.85 | a | 40.48 | a | 29.96 | f | 53.42 | d | ||
1998 | 35.71 | 34.50 | 38.89 | 42.63 | 46.40 | a | 56.48 | 67.85 | 65.69 | 59.96 | c | 44.03 | 37.77 | d | 26.90 | a | 46.40 | |||||||||
1999 | ----- | z | 35.00 | x | 33.72 | b | 40.25 | b | 48.19 | e | 56.72 | a | 62.35 | a | 61.94 | f | 56.07 | p | 47.65 | d | 43.63 | c | 30.87 | e | 45.42 | d |
2000 | 33.80 | f | 36.88 | l | 38.14 | b | 48.02 | e | 51.76 | d | 60.57 | 65.12 | c | 66.10 | e | 54.88 | d | 43.46 | g | 30.02 | f | 32.28 | d | 52.11 | d | |
2001 | 30.00 | g | 30.89 | i | 41.78 | d | 42.07 | h | 55.55 | c | 57.96 | b | 63.98 | a | 68.00 | a | 58.23 | b | 49.17 | d | 39.12 | b | 32.21 | e | 51.78 | c |
2002 | 30.95 | i | 34.64 | f | 35.06 | w | 42.43 | c | 48.87 | ----- | z | ----- | z | ----- | z | 57.16 | a | 41.87 | 38.26 | a | 34.25 | e | 43.81 | f | ||
2003 | 37.79 | c | 34.10 | c | 42.27 | c | 40.26 | e | 51.80 | a | 62.48 | i | 67.76 | l | 72.95 | t | 65.43 | i | 56.72 | o | ----- | z | ----- | z | 41.24 | g |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 30.67 | 34.71 | 39.26 | 45.12 | 51.75 | 58.67 | 66.23 | 64.85 | 56.98 | 48.22 | 38.37 | 32.14 | 46.87 | |||||||||||||
S.D. | 5.53 | 4.19 | 3.66 | 3.33 | 3.35 | 3.22 | 2.68 | 2.67 | 2.77 | 3.26 | 3.87 | 4.17 | 1.21 | |||||||||||||
SKEW | -1.19 | 0.31 | 0.30 | 0.20 | 0.77 | 0.80 | -0.14 | -0.26 | -0.25 | -0.18 | 0.05 | 0.29 | 0.44 | |||||||||||||
MAX | 39.23 | 44.42 | 51.81 | 51.73 | 63.72 | 67.97 | 72.52 | 71.21 | 63.48 | 57.22 | 49.03 | 41.79 | 50.57 | |||||||||||||
MIN | 11.53 | 26.43 | 30.02 | 37.78 | 44.69 | 52.47 | 57.69 | 56.68 | 50.48 | 39.85 | 28.30 | 22.63 | 44.40 | |||||||||||||
YRS | 58 | 61 | 65 | 66 | 64 | 63 | 67 | 64 | 65 | 65 | 63 | 62 | 44 |