| YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
| 1914 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1915 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1916 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1917 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1918 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1919 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1920 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1921 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1922 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1923 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 81.84 | l | 83.19 | 77.87 | 66.71 | 59.57 | 47.13 | a | 66.89 | |||||
| 1924 | 46.19 | 55.76 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 54.89 | v | ----- | z | ----- | z | 50.98 | |||
| 1925 | 47.14 | b | 58.00 | 63.55 | 65.17 | 74.90 | 76.57 | 87.55 | 84.07 | a | 73.90 | 70.77 | 53.17 | 50.65 | 67.12 | |||||||||||
| 1926 | 50.32 | 58.54 | 70.97 | 76.33 | 71.37 | a | 84.27 | 87.65 | 83.37 | a | 73.27 | 69.29 | 57.73 | 47.17 | m | 71.19 | ||||||||||
| 1927 | 49.94 | o | 53.90 | h | 56.55 | 62.33 | 65.86 | c | 76.08 | e | 82.27 | a | 87.36 | c | 72.96 | c | 68.97 | 55.96 | b | 34.65 | e | 66.30 | ||||
| 1928 | 38.81 | ----- | z | ----- | z | 61.62 | a | 75.00 | 71.60 | 85.03 | 84.70 | a | 78.79 | a | 63.90 | 59.00 | r | 44.07 | c | 67.06 | ||||||
| 1929 | 41.87 | a | 50.61 | 54.50 | a | 53.67 | f | 67.31 | e | 65.68 | e | 83.06 | 85.19 | 79.80 | 73.38 | b | 57.90 | 49.12 | g | 65.93 | ||||||
| 1930 | 38.65 | 53.29 | ----- | z | 67.46 | d | 65.69 | e | 74.41 | c | 81.97 | a | 86.13 | 77.41 | c | 64.74 | d | 54.43 | 45.83 | a | 64.55 | |||||
| 1931 | 47.10 | 53.89 | 56.58 | 66.20 | 75.61 | 73.83 | 85.55 | 86.90 | 75.03 | 66.68 | 51.23 | 42.58 | 65.10 | |||||||||||||
| 1932 | 42.90 | 44.83 | 57.37 | a | 66.17 | 68.61 | 77.73 | 80.23 | 81.94 | 82.47 | 70.10 | 54.27 | 42.90 | 64.13 | ||||||||||||
| 1933 | 41.23 | a | 45.18 | 58.06 | 67.90 | 61.84 | 72.80 | 84.39 | 87.35 | 71.57 | 74.19 | 57.13 | 48.90 | 64.21 | ||||||||||||
| 1934 | 50.48 | 58.79 | 68.24 | b | 72.07 | 71.35 | 75.03 | 81.77 | 88.16 | 81.27 | 69.61 | 54.62 | a | 48.67 | d | 68.34 | ||||||||||
| 1935 | 43.00 | 55.29 | 53.68 | 63.67 | 72.97 | 80.47 | 83.84 | 86.43 | h | 87.97 | 65.39 | 52.87 | 47.29 | 64.22 | ||||||||||||
| 1936 | 49.10 | 49.03 | 57.84 | 68.53 | 72.32 | i | 77.62 | a | 85.35 | 88.35 | 80.57 | 76.81 | 67.63 | 49.13 | 68.18 | |||||||||||
| 1937 | 37.19 | 45.86 | 59.65 | 60.96 | b | 73.62 | b | 75.00 | g | 83.89 | m | 84.52 | b | 80.17 | a | 72.04 | e | 55.37 | 49.71 | 61.91 | ||||||
| 1938 | 48.84 | 51.50 | 54.94 | 64.50 | 74.24 | f | 82.23 | 91.58 | 85.70 | k | 85.65 | d | 69.37 | a | 52.20 | 47.97 | 64.88 | |||||||||
| 1939 | 48.87 | 48.18 | 63.77 | 72.80 | 74.77 | 74.77 | 89.00 | 91.52 | 83.43 | 67.97 | 61.30 | 51.13 | 68.96 | |||||||||||||
| 1940 | 50.90 | 52.31 | 63.00 | 66.20 | 76.29 | 83.10 | 84.52 | 90.32 | 77.10 | 68.32 | 52.66 | a | 52.71 | 68.12 | ||||||||||||
| 1941 | 51.03 | a | ----- | z | 69.81 | 64.96 | d | 73.14 | c | 76.24 | a | 85.97 | a | 81.71 | 75.39 | g | 65.57 | h | 50.67 | l | 46.33 | a | 68.65 | |||
| 1942 | 47.30 | a | 49.82 | 58.13 | 65.97 | 66.68 | 73.10 | a | 84.77 | 89.10 | 85.13 | 72.77 | 52.30 | 48.06 | 66.10 | |||||||||||
| 1943 | 44.32 | 59.21 | 59.45 | b | 66.93 | 68.81 | 72.27 | 85.84 | 84.13 | 88.27 | 65.74 | 58.37 | 49.87 | 66.93 | ||||||||||||
| 1944 | 49.61 | 51.28 | 58.94 | 59.54 | b | 70.97 | 74.27 | 87.52 | 88.06 | 86.67 | 76.68 | 54.83 | 50.52 | 67.41 | ||||||||||||
| 1945 | 51.26 | 52.82 | 53.35 | 60.93 | 70.03 | 79.47 | 90.81 | 90.39 | 83.17 | 71.81 | 49.50 | 47.65 | 66.76 | |||||||||||||
| 1946 | 46.84 | 50.64 | 56.71 | 66.30 | 76.32 | 74.53 | 85.65 | 86.55 | 78.40 | 60.84 | 51.73 | 48.42 | 65.24 | |||||||||||||
| 1947 | 44.26 | 60.71 | 64.39 | 69.43 | 73.52 | 73.77 | 79.77 | 79.61 | 79.40 | 64.94 | 50.93 | 46.35 | 65.59 | |||||||||||||
| 1948 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 82.07 | a | 82.23 | 86.05 | k | 66.39 | m | 49.53 | 39.74 | d | 63.39 | |||
| 1949 | 40.65 | 46.46 | 54.13 | 71.00 | m | 75.33 | j | 80.30 | j | 86.90 | 86.10 | 83.60 | e | 63.27 | a | 62.87 | 47.90 | k | 65.50 | |||||||
| 1950 | 39.12 | f | 50.24 | g | 58.93 | c | 68.62 | f | 73.31 | e | 77.08 | e | 87.47 | a | 91.77 | a | ----- | z | 64.57 | h | 56.24 | i | 52.50 | k | 77.71 | |
| 1951 | 44.96 | f | 52.16 | c | 54.33 | d | 77.15 | j | ----- | z | 88.71 | i | 89.25 | g | 88.26 | 86.84 | e | 64.83 | y | ----- | z | ----- | z | 70.40 | ||
| 1952 | ----- | z | ----- | z | 54.09 | i | 74.53 | o | 79.08 | r | 78.00 | q | 91.14 | b | 88.00 | 86.15 | c | 78.53 | l | 57.31 | n | 46.30 | k | 88.43 | ||
| 1953 | 50.60 | f | 54.53 | i | 56.00 | c | 63.04 | d | 65.10 | b | 69.64 | b | 87.30 | a | 83.19 | 84.42 | d | 71.45 | i | 56.79 | p | ----- | z | 72.67 | ||
| 1954 | 45.73 | i | 59.67 | j | 61.05 | l | 66.95 | h | 75.20 | k | 72.52 | i | 82.22 | h | 78.17 | b | 77.04 | e | 67.88 | n | 61.91 | s | 47.73 | p | 77.61 | |
| 1955 | 46.05 | j | 49.04 | 52.58 | 54.57 | 67.52 | 76.03 | 78.71 | 84.35 | 78.03 | 66.45 | 50.80 | 46.77 | 64.08 | ||||||||||||
| 1956 | 46.37 | a | 46.21 | 55.26 | 66.70 | 71.94 | 74.53 | 86.10 | 83.03 | 80.83 | 63.65 | 57.23 | 48.03 | 64.99 | ||||||||||||
| 1957 | 41.13 | 54.68 | 55.19 | 65.07 | 71.68 | 78.20 | 82.32 | 81.00 | 84.80 | 63.45 | 53.70 | 48.58 | 64.98 | |||||||||||||
| 1958 | 49.26 | 57.57 | 55.16 | 61.20 | 77.45 | 76.73 | 89.77 | 89.48 | 78.93 | 72.55 | 55.63 | 52.29 | 68.00 | |||||||||||||
| 1959 | 48.61 | 50.46 | 58.97 | 68.23 | 68.65 | 76.73 | 87.55 | 84.32 | 73.47 | 67.13 | 58.00 | 49.06 | 65.93 | |||||||||||||
| 1960 | 46.03 | 51.21 | 59.06 | 63.50 | 66.87 | 80.83 | 88.13 | 81.74 | 80.80 | 69.26 | 53.43 | 47.84 | 65.73 | |||||||||||||
| 1961 | 54.35 | 52.32 | 54.13 | 64.87 | 68.03 | 82.77 | 86.65 | 88.84 | 75.77 | 65.94 | 51.80 | 46.06 | 65.96 | |||||||||||||
| 1962 | 46.42 | 51.89 | 54.87 | 68.20 | 63.65 | 77.53 | 85.68 | 82.65 | 82.53 | 66.13 | 56.03 | 51.61 | 65.60 | |||||||||||||
| 1963 | 46.23 | 58.71 | 57.10 | 57.07 | 70.10 | 71.47 | 76.13 | 82.55 | 81.97 | 65.71 | 52.90 | 49.74 | 64.14 | |||||||||||||
| 1964 | 44.81 | 53.83 | 51.74 | 58.40 | 66.29 | 71.60 | 80.97 | 81.00 | 76.67 | 71.45 | 49.53 | 44.29 | 62.55 | |||||||||||||
| 1965 | 44.61 | 52.89 | 61.65 | 62.63 | 65.48 | 73.50 | 86.06 | 83.71 | 77.20 | 71.10 | 55.07 | 44.65 | 64.88 | |||||||||||||
| 1966 | 45.00 | 49.75 | 55.71 | 66.90 | 71.32 | 76.53 | 79.84 | 83.94 | 78.97 | 67.26 | 53.10 | 46.81 | 64.59 | |||||||||||||
| 1967 | 46.52 | 53.86 | 52.35 | 55.40 | 70.45 | 77.27 | 86.65 | 91.52 | 84.33 | 63.23 | 57.97 | 44.06 | 65.30 | |||||||||||||
| 1968 | 46.00 | 59.17 | 60.45 | 61.07 | 67.81 | 75.83 | 83.94 | 77.84 | 76.10 | 63.84 | 51.50 | 42.16 | 63.81 | |||||||||||||
| 1969 | 40.42 | 46.36 | 59.32 | 61.07 | 73.29 | 74.43 | 80.71 | 80.77 | 77.63 | 60.87 | a | 57.60 | 47.81 | 63.36 | ||||||||||||
| 1970 | 46.52 | 56.75 | 56.55 | 55.67 | 69.29 | 79.23 | 85.29 | 85.29 | 73.10 | 65.61 | 53.40 | 43.61 | 64.19 | |||||||||||||
| 1971 | 44.26 | 50.25 | 49.48 | 59.27 | 67.32 | 70.17 | 84.03 | 85.68 | 74.33 | 62.06 | 51.13 | 42.94 | 61.74 | |||||||||||||
| 1972 | 43.23 | 51.41 | 58.16 | 57.53 | 71.10 | 76.55 | a | 88.06 | 86.71 | 76.17 | 66.29 | 52.50 | 41.68 | 64.12 | ||||||||||||
| 1973 | 44.16 | 56.68 | 52.00 | 63.70 | 72.94 | 75.97 | 85.23 | 82.16 | 78.10 | 65.03 | 45.63 | 48.52 | 64.18 | |||||||||||||
| 1974 | 43.77 | 49.21 | 53.77 | 59.23 | 65.19 | 76.80 | 82.06 | 84.80 | a | 86.27 | 71.97 | 55.17 | 46.32 | 64.55 | ||||||||||||
| 1975 | 46.61 | 47.46 | 52.13 | 54.63 | 68.42 | 73.87 | 81.16 | 77.68 | 83.73 | 61.39 | 49.83 | 47.90 | 62.07 | |||||||||||||
| 1976 | 48.48 | 51.31 | 53.71 | 58.23 | 71.26 | 72.70 | 81.03 | 76.61 | 78.37 | 70.77 | 59.90 | 49.16 | 64.30 | |||||||||||||
| 1977 | 49.77 | 58.86 | 52.03 | 66.73 | 62.26 | 79.00 | 81.39 | 87.87 | 71.67 | 66.35 | 50.80 | 49.06 | 64.65 | |||||||||||||
| 1978 | 49.52 | 53.46 | 62.48 | 58.57 | 65.16 | 76.90 | 80.68 | 78.94 | 69.87 | 73.00 | 52.50 | 42.52 | 63.63 | |||||||||||||
| 1979 | 44.52 | 46.14 | 60.16 | 59.10 | 70.29 | 78.30 | 84.77 | 79.61 | 81.50 | 68.94 | 53.97 | 50.26 | 64.80 | |||||||||||||
| 1980 | 47.16 | 54.21 | 53.94 | 63.07 | 65.81 | 68.03 | 81.81 | 80.84 | 78.37 | 70.71 | 54.80 | 49.48 | 64.02 | |||||||||||||
| 1981 | 52.90 | 54.46 | 57.55 | 61.00 | 65.48 | 72.17 | 80.77 | 87.90 | 78.87 | 64.42 | 54.80 | 47.00 | 64.78 | |||||||||||||
| 1982 | 41.65 | 50.68 | 55.06 | 59.30 | 70.35 | 75.60 | 78.68 | 82.29 | 73.67 | 66.52 | 51.90 | 45.84 | 62.63 | |||||||||||||
| 1983 | 49.71 | 51.64 | 55.68 | 62.07 | 70.94 | 72.13 | 74.71 | 80.16 | 74.90 | 66.13 | 50.87 | 42.29 | 62.60 | |||||||||||||
| 1984 | 49.55 | 52.79 | 58.00 | 56.77 | 66.45 | 71.13 | 83.87 | 82.16 | 76.17 | ----- | z | 48.33 | 42.74 | 62.54 | ||||||||||||
| 1985 | 49.74 | 48.61 | 54.45 | 65.90 | 69.35 | 77.60 | 88.84 | 82.23 | ----- | z | 65.67 | a | 44.40 | 46.55 | 63.03 | |||||||||||
| 1986 | 49.68 | 50.54 | 63.19 | 60.83 | 69.00 | 79.50 | 78.45 | 88.94 | 69.77 | 67.19 | 52.33 | 44.71 | 64.51 | |||||||||||||
| 1987 | 43.65 | 52.64 | 58.00 | 70.79 | a | 70.61 | 81.39 | b | ----- | z | ----- | z | 80.62 | a | 77.29 | 53.40 | 43.55 | 63.19 | ||||||||
| 1988 | 43.55 | 55.17 | 57.77 | 62.13 | 65.23 | 71.00 | 82.52 | ----- | z | 78.20 | 71.84 | 48.63 | 44.03 | 61.82 | ||||||||||||
| 1989 | 44.32 | 45.57 | 53.16 | 67.10 | 65.19 | 75.10 | 74.61 | 76.84 | 77.80 | 64.23 | 51.40 | 44.45 | 61.65 | |||||||||||||
| 1990 | 45.77 | 46.00 | 59.35 | 65.70 | 65.32 | 72.60 | 82.32 | 79.81 | 77.87 | 62.23 | 49.40 | 37.35 | 61.98 | |||||||||||||
| 1991 | 43.13 | 56.64 | 52.55 | 56.43 | 61.61 | 69.50 | 82.26 | 82.35 | 81.93 | 68.71 | 52.20 | 44.32 | 62.64 | |||||||||||||
| 1992 | 46.58 | 57.38 | 63.06 | 65.13 | 75.32 | 76.70 | 80.32 | 84.68 | 75.87 | 66.29 | 49.60 | 41.97 | 65.24 | |||||||||||||
| 1993 | 41.03 | 48.21 | 58.35 | 57.87 | 69.65 | 68.90 | 72.26 | 77.55 | 79.60 | 69.16 | 47.57 | 42.52 | 61.06 | |||||||||||||
| 1994 | 47.61 | 47.29 | 60.26 | 62.10 | 67.48 | 69.73 | 82.58 | 80.00 | 78.47 | 62.65 | 41.72 | a | 42.52 | 61.87 | ||||||||||||
| 1995 | 48.52 | 56.71 | 54.90 | 58.73 | 67.77 | 71.17 | 78.81 | 77.45 | 77.80 | 62.03 | 53.27 | 46.65 | 62.82 | |||||||||||||
| 1996 | 43.13 | 51.17 | 58.16 | 61.43 | 63.55 | 72.43 | 83.48 | 84.19 | 73.57 | 62.06 | 50.63 | 44.48 | 62.36 | |||||||||||||
| 1997 | 43.81 | 50.36 | 55.19 | 59.20 | 73.13 | 72.23 | 79.06 | 81.90 | 74.47 | 60.06 | 53.03 | 41.81 | 62.02 | |||||||||||||
| 1998 | 46.77 | 51.32 | 54.87 | 59.60 | 60.10 | 72.77 | 82.74 | 82.55 | 79.80 | 62.19 | 49.33 | 41.52 | 61.96 | |||||||||||||
| 1999 | 43.97 | 45.07 | 51.33 | a | 58.30 | 63.06 | 72.63 | 78.74 | 79.00 | 79.52 | a | 68.07 | d | 53.10 | 43.13 | 61.33 | ||||||||||
| 2000 | 42.58 | 49.62 | 52.80 | a | 63.77 | 65.06 | 75.97 | 78.48 | 81.29 | 74.87 | 62.55 | 46.17 | 43.84 | 61.42 | ||||||||||||
| 2001 | 44.55 | 48.39 | 56.77 | 57.80 | 72.32 | 70.13 | 79.71 | 81.16 | 78.07 | 63.94 | 51.30 | 42.74 | 62.24 | |||||||||||||
| 2002 | 42.58 | 51.39 | 51.90 | 60.90 | 65.29 | 73.80 | 83.81 | 82.29 | 77.07 | 63.94 | 54.43 | 46.23 | 62.80 | |||||||||||||
| 2003 | 48.06 | 50.39 | 55.16 | 55.40 | 65.39 | 76.80 | 85.23 | 82.06 | 77.67 | 65.13 | 45.53 | 44.19 | 62.58 | |||||||||||||
| 2004 | 42.87 | 48.38 | 61.19 | 64.57 | 65.68 | 72.57 | 82.77 | 81.52 | 69.57 | 62.48 | 50.50 | 45.71 | 62.32 | |||||||||||||
| 2005 | 45.23 | 53.54 | 59.42 | 58.47 | 65.45 | 67.40 | 81.29 | 83.81 | 72.87 | 62.65 | 47.20 | 41.35 | 61.56 | |||||||||||||
| 2006 | 44.35 | 50.57 | 49.97 | 60.17 | ----- | z | 72.60 | 82.16 | 80.58 | 75.70 | 63.16 | 47.77 | 41.71 | 60.79 | ||||||||||||
| 2007 | 38.94 | 48.04 | 57.71 | 59.33 | 67.58 | 71.33 | 79.65 | 78.13 | 72.67 | 57.52 | 49.93 | 41.29 | 60.18 | |||||||||||||
| 2008 | 39.45 | 48.14 | 49.65 | 55.47 | 65.58 | 69.60 | 80.23 | 79.97 | 76.20 | 61.26 | 50.63 | 39.16 | 59.61 | |||||||||||||
| 2009 | 42.00 | 48.00 | 47.97 | 57.73 | 68.90 | 72.90 | 84.42 | 80.97 | 77.60 | 59.19 | 47.20 | 40.03 | 60.58 | |||||||||||||
| 2010 | 48.06 | 50.89 | 54.39 | 57.70 | 60.32 | 67.23 | 80.32 | 79.94 | 72.60 | 62.10 | 47.93 | 43.23 | 60.39 | |||||||||||||
| 2011 | 43.90 | 45.54 | 50.35 | 53.60 | 59.42 | 68.20 | 74.03 | 79.32 | 79.93 | 61.55 | 47.67 | 42.55 | 58.84 | |||||||||||||
| 2012 | 43.65 | 48.07 | 49.71 | 59.63 | 64.65 | 66.90 | 75.68 | 82.65 | 79.93 | 63.71 | 50.73 | 42.10 | 60.62 | |||||||||||||
| 2013 | 39.39 | 46.89 | 56.61 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 47.63 | ||||
| Period of Record Statistics | ||||||||||||||||||||||||||
| MEAN | 45.52 | 51.56 | 56.73 | 62.28 | 68.60 | 74.49 | 83.05 | 83.49 | 78.49 | 66.55 | 52.62 | 45.47 | 63.82 | |||||||||||||
| S.D. | 3.56 | 4.00 | 4.42 | 4.63 | 4.12 | 3.95 | 3.97 | 3.75 | 4.35 | 4.26 | 4.21 | 3.54 | 2.24 | |||||||||||||
| SKEW | -0.03 | 0.35 | 0.78 | 0.44 | 0.03 | 0.15 | -0.24 | 0.33 | 0.20 | 0.46 | 0.51 | -0.26 | 0.11 | |||||||||||||
| MAX | 54.35 | 60.71 | 70.97 | 76.33 | 77.45 | 84.27 | 91.58 | 91.77 | 88.27 | 77.29 | 67.63 | 52.71 | 68.96 | |||||||||||||
| MIN | 37.19 | 44.83 | 47.97 | 53.60 | 59.42 | 65.68 | 72.26 | 76.61 | 69.57 | 57.52 | 41.72 | 34.65 | 58.84 | |||||||||||||
| NO YRS | 82 | 82 | 84 | 81 | 80 | 82 | 84 | 85 | 85 | 81 | 82 | 81 | 65 | |||||||||||||