YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1916 | ----- | z | ----- | z | ----- | z | 60.77 | q | 63.62 | b | 72.86 | b | 72.23 | 79.06 | 72.87 | 63.32 | 47.87 | 40.97 | 64.10 | d | ||||||
1917 | 41.37 | a | 42.96 | 48.29 | 54.70 | 62.19 | 65.67 | ----- | z | 84.36 | i | 70.30 | 64.32 | 57.30 | 49.97 | 55.71 | b | |||||||||
1918 | 48.03 | 47.07 | 52.32 | 63.77 | 64.39 | 78.20 | 78.19 | 76.26 | 78.30 | 61.73 | a | 52.23 | 44.97 | a | 62.12 | |||||||||||
1919 | 46.29 | 47.11 | 53.68 | 61.03 | a | 65.66 | b | 69.31 | a | 79.61 | 77.83 | a | 73.31 | a | 59.23 | 49.28 | a | 42.84 | 60.43 | |||||||
1920 | 44.73 | a | 50.07 | 52.65 | 56.36 | e | 62.90 | a | 69.43 | 77.52 | 79.57 | a | 67.63 | 56.71 | 53.46 | b | 45.87 | 59.74 | ||||||||
1921 | 44.79 | c | 47.68 | 52.74 | 57.57 | 64.77 | 70.50 | 74.58 | 75.81 | 68.20 | 63.10 | 51.00 | 43.43 | a | 59.51 | |||||||||||
1922 | 40.97 | 44.78 | a | 48.29 | 55.48 | a | 66.39 | 74.83 | 78.52 | 76.58 | 72.23 | 60.45 | 50.00 | 40.65 | 59.10 | |||||||||||
1923 | 44.13 | 43.64 | 52.45 | 60.90 | 63.83 | a | 72.53 | 77.29 | 82.45 | 75.20 | 64.31 | b | 53.59 | a | 44.44 | d | 61.23 | |||||||||
1924 | 43.29 | c | 50.68 | a | 52.93 | a | 58.97 | 70.13 | a | 73.10 | 75.89 | c | 74.26 | 72.76 | a | 59.58 | 50.43 | 42.03 | 60.34 | |||||||
1925 | 46.52 | 50.64 | 53.36 | c | 60.30 | 71.07 | a | 72.42 | k | 79.65 | 76.70 | a | 71.96 | d | 63.10 | 52.03 | 49.27 | a | 61.33 | a | ||||||
1926 | 47.27 | e | 52.07 | 62.10 | 69.80 | 66.79 | c | 75.53 | 81.45 | 76.52 | 69.10 | 61.33 | a | 53.88 | e | 44.79 | c | 63.39 | ||||||||
1927 | ----- | z | 47.15 | b | 52.07 | b | 58.24 | a | 60.67 | a | 71.90 | a | 77.48 | 78.35 | 69.00 | 60.26 | 50.23 | 41.24 | b | 60.60 | a | |||||
1928 | 45.48 | 49.88 | c | 54.90 | 56.83 | ----- | z | 71.13 | 78.61 | 79.65 | 71.55 | a | 58.80 | a | 51.03 | 44.41 | b | 60.21 | a | |||||||
1929 | 40.28 | b | 42.50 | 53.45 | b | 55.80 | 65.19 | 66.83 | x | 77.29 | g | 78.55 | 75.90 | 64.68 | 50.10 | a | 47.43 | a | 57.39 | b | ||||||
1930 | 36.19 | 50.92 | b | 56.55 | 62.10 | 62.97 | 69.53 | 75.77 | 80.42 | 69.57 | 59.83 | a | 51.88 | d | 46.77 | 60.21 | ||||||||||
1931 | 52.10 | a | 51.48 | c | 55.59 | d | 63.88 | d | 71.61 | 76.50 | d | 80.39 | 77.39 | c | 69.56 | e | ----- | z | ----- | z | 41.83 | s | 66.50 | c | ||
1932 | 43.74 | l | 45.33 | n | 45.29 | x | 57.50 | v | 64.57 | x | 72.65 | m | 70.27 | p | 69.70 | u | 73.93 | ----- | z | ----- | z | ----- | z | 73.93 | k | |
1933 | ----- | z | 43.00 | 51.74 | 61.27 | d | 60.06 | 69.45 | a | 77.13 | 81.32 | 66.77 | 61.97 | 50.73 | 48.87 | 61.12 | a | |||||||||
1934 | 49.81 | 57.11 | 61.52 | 67.77 | 68.94 | 74.20 | 75.10 | 78.74 | 71.10 | 63.97 | 54.19 | d | 47.00 | 64.12 | ||||||||||||
1935 | 44.83 | a | 52.21 | 50.00 | a | 61.30 | 67.23 | 71.80 | 76.19 | 76.68 | 74.17 | a | 61.35 | 50.50 | ----- | z | 62.39 | a | ||||||||
1936 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 64.83 | a | 52.60 | 46.23 | r | 58.72 | j | |
1937 | 35.70 | d | 45.68 | 55.26 | 55.57 | b | 67.31 | b | 73.00 | 79.03 | 75.61 | 72.50 | 65.66 | b | 52.21 | b | 46.17 | a | 60.31 | |||||||
1938 | 45.66 | b | 49.68 | 53.10 | 62.80 | 70.23 | 76.36 | b | 83.65 | 77.63 | a | 74.12 | v | 63.59 | b | 49.63 | 46.21 | b | 61.68 | a | ||||||
1939 | 46.75 | c | 45.54 | 54.45 | b | 64.50 | 69.61 | 68.90 | a | 78.65 | 81.55 | 75.15 | c | 62.57 | c | 55.57 | 50.13 | 62.78 | ||||||||
1940 | 47.46 | c | 50.24 | 57.32 | 62.80 | 72.68 | 79.87 | 77.48 | 80.48 | 74.37 | 63.10 | 48.90 | a | 47.77 | 63.54 | |||||||||||
1941 | 48.23 | 54.82 | 64.35 | 66.17 | 66.83 | a | 71.20 | 84.03 | 76.81 | 67.17 | 61.43 | a | 53.33 | 46.55 | 63.41 | |||||||||||
1942 | 44.94 | 49.22 | e | ----- | z | ----- | z | 64.70 | d | 68.93 | a | 77.74 | 81.17 | a | 75.52 | a | 65.16 | 49.71 | b | 47.26 | 62.43 | b | ||||
1943 | 40.73 | a | 53.22 | a | 54.10 | 64.33 | 64.58 | 71.10 | 76.61 | 75.68 | 77.33 | 62.19 | 53.31 | d | 45.80 | a | 61.58 | |||||||||
1944 | 47.83 | a | 49.90 | 54.10 | 60.00 | a | 66.74 | 70.50 | 77.77 | 75.97 | 75.31 | a | 65.52 | 50.30 | 43.71 | 61.47 | ||||||||||
1945 | 48.06 | 51.30 | e | 51.23 | a | 56.83 | a | 67.13 | 70.28 | a | 79.14 | c | 77.66 | b | 72.20 | e | 62.69 | e | 49.38 | d | ----- | z | 62.36 | a | ||
1946 | 46.40 | f | 49.07 | 52.52 | 58.00 | b | 69.10 | a | 67.62 | a | 75.48 | 77.03 | 70.50 | 59.66 | b | 49.93 | c | 46.40 | f | 62.89 | b | |||||
1947 | 40.00 | u | 49.76 | k | 55.68 | f | ----- | z | 72.46 | c | 70.52 | c | 75.39 | c | 77.09 | i | 73.37 | 61.00 | 51.04 | d | 48.19 | d | 64.57 | e | ||
1948 | 46.30 | d | 46.38 | ----- | z | ----- | z | ----- | z | 75.68 | b | 74.44 | d | 70.57 | a | 71.17 | a | 60.31 | b | 49.57 | 42.79 | c | 59.69 | c | ||
1949 | 37.26 | 45.54 | 54.74 | 61.41 | a | 70.42 | 73.50 | 76.03 | a | 74.80 | a | 75.70 | 59.71 | c | 58.03 | a | 45.08 | f | 62.47 | a | ||||||
1950 | 34.68 | 47.18 | 49.90 | 57.20 | 64.00 | b | 73.82 | s | 77.16 | 77.35 | 67.83 | 54.40 | a | 47.63 | 49.03 | 56.94 | a | |||||||||
1951 | 43.81 | 44.64 | 41.48 | 64.65 | j | 66.80 | a | 75.27 | 77.06 | 77.39 | 74.20 | 60.52 | 50.90 | 42.81 | 59.53 | a | ||||||||||
1952 | 42.19 | 48.41 | 50.94 | 61.67 | 67.00 | 67.67 | 78.71 | 76.55 | 76.73 | 68.74 | 50.43 | 47.58 | 61.39 | |||||||||||||
1953 | 51.35 | 49.70 | a | 52.55 | 57.63 | 64.52 | 65.93 | 76.90 | 76.65 | 72.67 | 64.71 | 54.66 | a | 48.23 | 61.29 | |||||||||||
1954 | 42.00 | 50.14 | 52.35 | 56.23 | 66.03 | ----- | z | 70.97 | 71.67 | a | 69.43 | 60.94 | 56.80 | 46.16 | 58.43 | a | ||||||||||
1955 | 45.07 | a | 48.14 | 49.58 | 56.03 | 61.55 | 69.50 | 70.42 | 76.52 | 71.30 | 60.74 | 48.27 | 47.06 | 58.68 | ||||||||||||
1956 | 46.29 | 42.79 | a | 51.39 | 64.87 | 71.57 | a | 66.79 | a | 81.06 | 78.23 | 72.77 | 59.84 | 51.63 | 48.68 | 61.32 | ||||||||||
1957 | 41.55 | 48.11 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 80.55 | a | ----- | z | ----- | z | ----- | z | 56.74 | i | ||
1958 | 48.23 | 55.57 | 54.42 | 61.07 | 74.26 | 73.73 | 83.03 | 80.71 | 70.82 | b | 65.26 | 51.40 | 51.32 | 64.15 | ||||||||||||
1959 | 45.71 | 46.37 | a | 51.65 | 59.47 | 64.57 | a | 68.07 | a | 79.58 | 74.31 | b | 67.30 | 63.19 | 54.23 | 48.26 | 60.23 | |||||||||
1960 | 44.00 | 51.03 | 52.29 | 58.57 | 60.77 | a | 70.03 | 80.84 | 72.68 | 72.59 | a | 61.55 | 51.30 | 45.30 | a | 60.08 | ||||||||||
1961 | 52.94 | 50.07 | a | 53.39 | 56.00 | 64.84 | 75.93 | c | 78.94 | 82.39 | 70.40 | 60.00 | 50.73 | 45.13 | 61.73 | |||||||||||
1962 | 45.74 | 51.89 | 52.23 | 60.43 | 58.84 | 69.77 | 74.77 | a | 72.62 | b | 71.40 | 62.13 | a | 53.63 | 49.35 | 60.23 | ||||||||||
1963 | 40.45 | 55.82 | 53.00 | 56.83 | 67.03 | 66.52 | a | 70.39 | 74.32 | 74.53 | 62.16 | 52.37 | 47.84 | 60.11 | ||||||||||||
1964 | 47.03 | 51.17 | 52.61 | 55.86 | b | 62.63 | a | 67.80 | ----- | z | 72.03 | 69.47 | 64.39 | 50.00 | 41.42 | 57.67 | a | |||||||||
1965 | 45.23 | 49.50 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 47.36 | j | ||
1966 | 47.10 | 50.29 | n | 53.39 | 61.97 | 68.10 | 70.10 | 74.16 | 77.29 | 74.30 | 64.48 | 55.07 | 48.80 | a | 63.16 | a | ||||||||||
1967 | 48.53 | a | 50.79 | 51.45 | 58.03 | 67.65 | 73.97 | 77.45 | 84.32 | 78.73 | 61.71 | 54.00 | b | 45.29 | 62.66 | |||||||||||
1968 | 47.10 | 57.38 | 56.54 | c | 58.97 | 68.23 | 71.40 | 78.58 | 72.94 | 70.00 | 60.74 | 53.77 | 43.74 | 61.61 | ||||||||||||
1969 | 37.71 | 48.46 | 59.13 | 59.30 | 70.10 | 73.00 | 75.80 | a | 73.61 | 70.80 | 61.23 | 53.17 | 49.60 | a | 60.99 | |||||||||||
1970 | 46.42 | 55.46 | 57.39 | 57.40 | 65.45 | 74.83 | 76.55 | 75.84 | 68.30 | 60.81 | 54.50 | 43.87 | 61.40 | |||||||||||||
1971 | 45.74 | 49.67 | a | 49.87 | 59.10 | 65.87 | 65.23 | 76.26 | 79.23 | 71.03 | 60.71 | 52.37 | 43.26 | 59.86 | ||||||||||||
1972 | 43.81 | 49.52 | 54.52 | 55.37 | 69.55 | 69.83 | 76.94 | 80.32 | 69.60 | 63.40 | a | 53.63 | 44.10 | 60.88 | ||||||||||||
1973 | 44.65 | 52.36 | 54.74 | 61.33 | 67.00 | 69.47 | 75.87 | 71.90 | 72.53 | 60.58 | 50.57 | 49.58 | 60.88 | |||||||||||||
1974 | 44.42 | 47.25 | 52.81 | 57.23 | 60.52 | 71.83 | 73.19 | 78.39 | 78.20 | 65.26 | 52.93 | 48.29 | 60.86 | |||||||||||||
1975 | 45.48 | 48.36 | 52.84 | 56.13 | 65.03 | 67.33 | 74.16 | 71.23 | 73.87 | 59.26 | 52.17 | 46.71 | 59.38 | |||||||||||||
1976 | 47.97 | a | 48.66 | 51.23 | 58.57 | 64.29 | 67.07 | 73.32 | 69.52 | 72.30 | 65.42 | 53.73 | 47.58 | 59.97 | ||||||||||||
1977 | 44.94 | 54.86 | 52.90 | 63.40 | 61.52 | 70.67 | 73.39 | 80.74 | 69.87 | 62.29 | 50.87 | 47.00 | 61.04 | |||||||||||||
1978 | 48.71 | 52.75 | 59.00 | 60.87 | 64.42 | 76.03 | 77.03 | 80.69 | o | 68.20 | 66.29 | ----- | z | 42.13 | 61.54 | b | ||||||||||
1979 | 41.26 | 47.14 | 59.81 | 60.53 | 67.23 | 71.57 | 76.90 | 76.19 | 73.97 | 64.39 | 51.77 | 48.52 | 61.61 | |||||||||||||
1980 | 43.42 | 49.38 | 52.68 | 63.80 | 65.10 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 51.08 | q | 50.21 | c | 54.10 | f | |||||
1981 | 49.94 | 52.14 | 59.87 | 60.67 | 66.32 | 68.60 | 76.71 | 82.29 | 73.50 | 59.61 | 54.13 | 46.42 | 62.52 | |||||||||||||
1982 | 44.61 | 49.00 | 53.84 | 58.87 | 69.19 | 76.73 | 75.74 | 76.94 | 73.23 | 62.32 | 49.00 | 46.16 | 61.30 | |||||||||||||
1983 | 50.90 | 53.04 | 57.74 | 64.47 | 72.16 | 70.36 | b | 75.07 | a | 78.43 | c | 70.20 | 61.48 | 51.70 | 40.39 | 62.16 | ||||||||||
1984 | 49.26 | 52.06 | m | 60.23 | 58.37 | 64.16 | 70.17 | 80.42 | 77.58 | g | 70.63 | 56.45 | 49.57 | 41.84 | 60.11 | b | ||||||||||
1985 | 44.23 | 47.25 | 53.35 | 61.53 | 67.39 | 71.30 | 84.71 | 79.45 | 67.60 | 59.45 | 43.10 | 41.58 | 60.08 | |||||||||||||
1986 | 51.00 | 50.00 | 60.26 | 58.10 | 66.81 | 75.63 | 72.71 | 83.84 | 68.43 | 63.39 | 51.33 | 46.13 | 62.30 | |||||||||||||
1987 | 46.19 | 53.64 | 57.42 | 64.20 | 69.68 | 76.50 | 75.32 | 80.48 | 75.30 | 68.42 | 54.43 | 44.39 | 63.83 | |||||||||||||
1988 | 46.00 | 53.28 | 56.48 | 61.43 | 65.26 | 70.97 | 78.00 | 78.19 | 72.70 | 63.19 | 51.07 | 47.32 | 61.99 | |||||||||||||
1989 | 46.57 | a | 44.11 | a | 51.74 | 67.50 | 67.81 | 74.03 | 75.19 | 75.52 | 77.57 | 62.84 | 53.13 | 47.87 | 61.99 | |||||||||||
1990 | 47.77 | 46.61 | ----- | z | 60.83 | 63.42 | 69.73 | 79.55 | 77.39 | 72.00 | 59.23 | 52.45 | a | 41.07 | d | 60.91 | a | |||||||||
1991 | 44.10 | b | 54.07 | 51.26 | 60.07 | a | 61.74 | 66.10 | 78.65 | 76.35 | 72.40 | 60.03 | 50.33 | 47.39 | 60.21 | |||||||||||
1992 | 48.19 | 53.28 | 59.81 | 60.30 | 73.07 | b | 76.60 | 78.83 | a | 80.19 | 72.57 | 62.80 | a | 51.41 | a | 44.10 | a | 63.43 | ||||||||
1993 | 42.87 | 50.64 | 56.42 | 58.83 | 70.67 | a | 70.73 | 71.23 | 76.68 | 75.72 | a | 64.16 | 49.13 | 45.73 | a | 61.07 | ||||||||||
1994 | 49.48 | 46.41 | a | 58.97 | 62.30 | 69.00 | b | 70.27 | 79.03 | 78.97 | 75.73 | 62.50 | a | 47.37 | 45.90 | 62.16 | ||||||||||
1995 | 50.03 | 52.70 | a | 56.16 | 60.00 | 70.42 | 73.57 | ----- | z | 74.23 | 75.10 | 61.32 | 55.93 | 47.68 | 61.56 | a | ||||||||||
1996 | 45.87 | 51.17 | 57.06 | 60.37 | 61.00 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 52.47 | 46.81 | 53.54 | e | |||||||
1997 | 49.00 | a | 52.82 | 54.58 | 61.00 | 71.94 | 70.70 | 77.84 | 78.44 | m | 75.50 | 61.10 | 57.50 | 47.77 | 61.80 | a | ||||||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 45.39 | 49.66 | 54.21 | 60.15 | 66.51 | 71.46 | 77.08 | 77.25 | 72.41 | 62.09 | 51.84 | 45.96 | 61.33 | |||||||||||||
S.D. | 3.71 | 3.45 | 3.66 | 3.22 | 3.49 | 3.27 | 2.98 | 3.15 | 3.05 | 2.50 | 2.53 | 2.68 | 1.34 | |||||||||||||
SKEW | -0.71 | -0.03 | 0.10 | 0.59 | 0.05 | 0.29 | 0.08 | -0.17 | 0.26 | -0.06 | -0.10 | -0.34 | 0.34 | |||||||||||||
MAX | 52.94 | 57.38 | 64.35 | 69.80 | 74.26 | 79.87 | 84.71 | 84.32 | 80.55 | 68.74 | 58.03 | 51.32 | 64.15 | |||||||||||||
MIN | 34.68 | 42.50 | 41.48 | 54.70 | 58.84 | 65.23 | 70.39 | 69.52 | 66.77 | 54.40 | 43.10 | 40.39 | 58.68 | |||||||||||||
YRS | 75 | 76 | 73 | 73 | 76 | 72 | 72 | 71 | 77 | 76 | 76 | 73 | 50 |