YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1931 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 89.63 | 77.13 | 58.10 | 49.26 | 68.53 | h | ||||
1932 | 49.29 | 56.21 | 67.29 | 76.17 | 83.26 | 93.90 | 99.61 | 99.87 | 94.97 | 76.23 | 66.33 | 47.00 | 75.84 | |||||||||||||
1933 | 48.65 | 49.50 | 67.58 | 70.27 | 77.90 | 96.00 | 105.00 | 100.90 | 96.00 | 84.06 | 67.77 | 56.58 | 76.68 | |||||||||||||
1934 | 57.58 | 64.82 | 78.19 | 84.47 | 91.71 | 92.23 | 102.77 | 97.94 | 92.90 | 81.84 | 68.47 | 56.16 | 80.76 | |||||||||||||
1935 | 53.23 | 60.39 | 63.39 | 75.57 | 81.42 | 100.37 | 99.43 | a | 99.16 | 93.30 | 79.47 | a | 60.20 | 54.52 | 76.70 | |||||||||||
1936 | 55.16 | 57.38 | 67.97 | 79.53 | 87.58 | 98.00 | 99.94 | 98.20 | a | 90.30 | 76.77 | a | 65.30 | 53.32 | 77.45 | |||||||||||
1937 | 39.13 | 54.96 | 63.74 | 74.10 | 89.16 | 95.87 | 102.20 | a | 103.26 | 95.37 | 81.97 | 68.27 | 58.06 | 77.17 | ||||||||||||
1938 | 56.94 | 55.82 | 61.39 | 75.37 | 83.19 | 95.20 | 101.35 | 98.87 | 94.33 | 76.71 | 59.50 | 55.87 | 76.21 | |||||||||||||
1939 | 52.83 | a | 50.21 | 67.77 | 78.97 | a | 87.06 | 96.17 | 101.74 | 100.19 | 85.34 | a | 76.10 | 67.03 | 59.55 | 76.91 | ||||||||||
1940 | 55.37 | a | 57.17 | 71.03 | 76.66 | a | 90.94 | 99.83 | 101.35 | 100.97 | 87.59 | a | 80.52 | 61.23 | 54.03 | 78.06 | ||||||||||
1941 | 53.58 | 59.89 | 64.06 | 68.13 | 85.87 | 91.70 | 99.55 | 93.35 | 86.93 | 71.33 | a | 63.57 | 54.03 | 74.33 | ||||||||||||
1942 | 55.32 | 55.75 | 64.65 | 74.60 | 82.97 | 95.60 | 104.84 | 99.67 | a | 92.97 | 80.19 | 66.76 | a | 59.90 | 77.77 | |||||||||||
1943 | 56.28 | b | 62.00 | 67.81 | 78.87 | 87.71 | 92.80 | 101.29 | 96.90 | 94.77 | 79.26 | 65.47 | 54.35 | 78.12 | ||||||||||||
1944 | 52.03 | 53.55 | 64.37 | a | 71.53 | 83.42 | 89.47 | 100.32 | 101.26 | 93.73 | 81.90 | 60.57 | 56.83 | b | 75.75 | |||||||||||
1945 | 55.16 | 58.75 | 60.74 | 74.90 | a | 85.29 | 91.97 | 100.94 | 96.80 | a | 92.87 | 79.58 | 65.24 | a | 53.19 | 76.29 | ||||||||||
1946 | 55.26 | 58.96 | 67.23 | a | 80.60 | 85.19 | 97.70 | 99.87 | 99.03 | 92.67 | 72.00 | 57.60 | 56.45 | 76.88 | ||||||||||||
1947 | 54.13 | 65.07 | 71.52 | 77.63 | 89.81 | 92.83 | 101.74 | 97.00 | 95.77 | 79.03 | 59.63 | 51.87 | 78.00 | |||||||||||||
1948 | 56.03 | 55.79 | 60.68 | 76.30 | 85.26 | 94.17 | 100.74 | 99.68 | 94.10 | 79.23 | 61.23 | 51.87 | 76.26 | |||||||||||||
1949 | 40.90 | 50.86 | 65.06 | 79.67 | 82.74 | 94.07 | 101.45 | 98.00 | 95.50 | 75.87 | 71.50 | 53.84 | 75.79 | |||||||||||||
1950 | 52.23 | 63.14 | 68.52 | 80.63 | 84.84 | 94.13 | 99.13 | 100.71 | 90.07 | 85.26 | 68.63 | 62.55 | 79.15 | |||||||||||||
1951 | 54.73 | a | 58.57 | 65.94 | 75.23 | 84.71 | 93.87 | 101.68 | 96.60 | a | 94.93 | 76.61 | 61.33 | 51.42 | 76.30 | |||||||||||
1952 | 50.10 | 58.31 | 58.77 | 74.10 | 88.19 | 92.23 | 99.77 | 101.48 | 93.97 | 86.16 | 59.90 | a | 54.10 | 76.42 | ||||||||||||
1953 | 60.50 | a | 60.54 | 69.35 | ----- | z | 77.45 | 94.23 | 100.23 | 98.06 | 96.50 | 77.94 | 66.17 | 54.10 | 77.73 | a | ||||||||||
1954 | 55.45 | 66.36 | 63.00 | 81.53 | 89.39 | 92.60 | 101.26 | 97.30 | a | 92.93 | a | 81.97 | a | 68.00 | 53.58 | 78.61 | ||||||||||
1955 | 48.97 | 53.41 | a | 66.26 | 71.37 | 81.97 | 93.40 | 97.68 | 96.06 | 94.07 | 82.97 | 64.93 | 58.48 | 75.80 | ||||||||||||
1956 | 58.84 | 57.21 | a | 72.27 | a | 76.28 | a | 86.68 | 98.37 | 100.29 | 98.77 | 96.80 | 78.68 | 64.63 | 58.45 | 78.94 | ||||||||||
1957 | 53.19 | 65.21 | 69.55 | 75.10 | 81.00 | 98.87 | 101.30 | a | 95.94 | 92.73 | 74.16 | 58.47 | 57.77 | a | 76.94 | |||||||||||
1958 | 57.15 | d | 61.74 | a | 60.90 | 73.77 | 90.57 | a | 95.93 | b | 101.87 | a | 101.06 | 93.36 | b | 83.55 | b | 64.37 | 61.83 | b | 78.84 | |||||
1959 | 58.17 | a | 57.50 | 70.45 | 82.18 | b | 85.07 | c | 99.14 | b | 104.37 | a | 98.23 | 89.86 | a | 81.94 | 65.00 | a | 56.10 | a | 79.00 | |||||
1960 | 49.03 | a | 56.32 | a | 71.25 | c | 78.93 | b | 88.00 | 101.10 | a | 104.67 | d | 101.53 | a | 94.59 | a | 77.94 | 63.17 | 54.23 | 78.40 | |||||
1961 | 56.41 | b | 63.26 | a | 68.77 | a | 78.52 | a | 85.36 | c | 99.67 | c | 103.04 | c | 99.13 | a | 89.15 | c | 78.42 | 61.40 | 52.06 | 77.93 | ||||
1962 | 55.63 | a | 59.46 | b | 63.97 | 85.37 | 84.06 | 96.03 | 100.97 | 102.93 | a | 95.57 | 81.39 | 70.28 | a | 58.87 | 79.54 | |||||||||
1963 | 54.06 | 68.14 | 67.61 | 73.97 | 89.73 | a | 92.30 | 102.74 | 98.80 | a | 93.83 | 83.13 | 66.55 | a | 57.81 | 79.06 | ||||||||||
1964 | 54.00 | a | 59.21 | 65.63 | a | 75.20 | 84.60 | a | 95.13 | 103.16 | 99.37 | a | 92.97 | 86.87 | 62.73 | 61.84 | 78.39 | |||||||||
1965 | 58.94 | 62.57 | 65.74 | 71.31 | a | 82.65 | 90.63 | 98.97 | 100.19 | 88.73 | 84.68 | 66.40 | 53.77 | 77.05 | ||||||||||||
1966 | 53.19 | 56.64 | 71.87 | 81.57 | 91.06 | 96.83 | 101.00 | a | 102.23 | 93.37 | 79.26 | 67.40 | 56.27 | a | 79.22 | |||||||||||
1967 | 56.10 | 63.86 | 71.23 | 69.00 | 85.71 | 92.17 | 103.06 | 101.87 | 92.07 | 84.58 | 68.67 | 51.23 | 78.29 | |||||||||||||
1968 | 56.06 | 66.21 | 70.32 | 75.10 | 87.16 | 98.13 | 100.03 | 95.74 | 93.70 | 80.65 | 66.23 | 52.39 | 78.48 | |||||||||||||
1969 | 57.55 | 55.18 | 65.35 | 78.60 | 89.61 | 94.10 | a | 101.52 | 104.35 | 94.90 | 76.45 | 66.43 | 58.65 | 78.56 | ||||||||||||
1970 | 56.13 | 64.96 | 66.65 | 72.50 | 88.00 | a | 96.53 | 102.26 | 100.71 | 91.41 | a | 77.16 | 66.60 | 54.32 | 78.10 | |||||||||||
1971 | 56.00 | 62.07 | 71.00 | 75.67 | 80.03 | 95.10 | 103.68 | 98.32 | 91.30 | 74.48 | 62.33 | 50.48 | 76.71 | |||||||||||||
1972 | 55.00 | 65.90 | 80.84 | 80.33 | 87.97 | 96.63 | 105.13 | a | 98.81 | 89.70 | 74.71 | 59.41 | a | 51.39 | 78.82 | |||||||||||
1973 | 49.52 | 58.04 | 59.52 | 74.23 | 88.68 | 97.80 | 103.03 | 99.84 | 91.40 | 79.26 | 63.40 | 58.45 | 76.93 | |||||||||||||
1974 | 47.68 | 58.46 | 69.67 | a | 73.83 | 88.55 | 100.80 | 98.16 | 98.39 | 93.77 | 79.00 | a | 62.83 | 51.06 | 76.85 | |||||||||||
1975 | 53.10 | 56.86 | 61.72 | b | 66.63 | 81.97 | 92.90 | 101.42 | 98.81 | 92.20 | 77.81 | 64.17 | ----- | z | 77.05 | a | ||||||||||
1976 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 85.93 | 77.06 | ----- | z | 56.52 | 73.17 | i | |||
1977 | ----- | z | 65.04 | 62.68 | 78.53 | 76.26 | 97.93 | 101.71 | 99.19 | 91.47 | 82.13 | 67.30 | 59.94 | 80.20 | a | |||||||||||
1978 | 53.52 | 58.89 | 66.81 | 71.07 | 83.13 | 96.53 | 101.94 | 98.58 | 89.00 | 83.84 | 60.97 | 49.84 | 76.18 | |||||||||||||
1979 | 45.42 | 55.54 | 63.48 | 76.60 | j | 84.58 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 62.67 | 57.68 | 61.56 | f | ||||||
1980 | 55.16 | 61.31 | 62.23 | 74.23 | 79.23 | 94.70 | 102.16 | 99.29 | 92.50 | 80.71 | 67.87 | 63.71 | 77.76 | |||||||||||||
1981 | 60.16 | 61.46 | 64.13 | 79.40 | 83.55 | 100.17 | 102.45 | 100.19 | 91.40 | 74.52 | 68.60 | 59.10 | 78.76 | |||||||||||||
1982 | 52.83 | h | 60.22 | e | 63.97 | 73.83 | a | 84.26 | 93.27 | 97.84 | 97.42 | 88.83 | 75.85 | d | 61.37 | 53.61 | 77.31 | a | ||||||||
1983 | 57.13 | a | 60.57 | 66.48 | 70.97 | a | 87.29 | 94.80 | 101.19 | 95.90 | 94.59 | a | 79.23 | a | 65.97 | 58.87 | a | 77.75 | ||||||||
1984 | 58.20 | a | 62.24 | 71.60 | a | 76.28 | a | 95.34 | b | 95.03 | 98.84 | 97.55 | b | 93.69 | a | 75.16 | 65.10 | a | 52.50 | a | 78.46 | |||||
1985 | 54.10 | 59.48 | a | 67.43 | a | 83.04 | b | 89.97 | 101.69 | a | 104.17 | b | 102.32 | 88.23 | 80.06 | 62.77 | 59.80 | a | 79.42 | |||||||
1986 | 63.80 | a | 65.61 | 75.16 | 79.17 | 90.23 | a | 100.76 | a | 99.50 | a | 102.39 | 87.48 | a | 77.45 | 66.63 | 55.81 | 80.33 | ||||||||
1987 | 53.87 | 60.61 | 67.00 | b | 83.37 | 86.77 | 99.38 | a | 99.58 | 100.38 | b | 95.46 | b | 84.94 | 63.31 | a | 52.34 | b | 78.92 | |||||||
1988 | 55.25 | c | 64.79 | 71.40 | a | 76.62 | a | 88.27 | a | 99.46 | b | 105.45 | 99.45 | b | 93.52 | c | 88.19 | 67.83 | a | 57.30 | a | 80.63 | ||||
1989 | 53.94 | 60.56 | a | 76.97 | a | 87.04 | b | 89.30 | a | 98.64 | b | 105.87 | 99.94 | 94.77 | 80.84 | 70.17 | 60.52 | b | 81.54 | |||||||
1990 | 55.87 | a | 58.89 | 72.72 | b | 81.60 | 86.74 | 99.47 | 103.29 | 99.61 | 93.62 | a | 82.27 | a | 67.87 | 51.65 | 79.47 | |||||||||
1991 | 55.42 | 68.54 | 63.13 | 76.75 | b | 84.10 | 92.97 | 102.77 | 99.84 | 93.07 | b | 85.47 | a | 66.03 | a | 55.45 | 78.63 | |||||||||
1992 | 55.24 | b | 62.00 | 65.55 | 81.45 | a | 89.58 | 95.48 | a | 100.33 | a | 101.87 | a | 95.79 | a | 82.62 | b | 62.28 | a | 50.77 | a | 78.58 | ||||
1993 | 53.63 | a | 56.93 | a | 70.10 | 79.70 | 89.26 | 95.30 | 98.87 | a | 99.71 | 94.48 | a | 81.72 | b | 62.53 | 57.96 | c | 78.35 | |||||||
1994 | 60.00 | b | 57.43 | 72.00 | d | 77.95 | k | 85.27 | i | 100.22 | c | 101.83 | g | 101.03 | 92.37 | 75.61 | 56.17 | 53.74 | 74.29 | c | ||||||
1995 | 51.48 | 66.50 | 64.00 | 72.60 | 79.39 | c | 91.72 | e | 102.97 | 103.29 | 96.37 | 82.48 | b | 71.07 | b | 59.06 | 78.41 | |||||||||
1996 | 60.16 | 64.38 | 71.74 | 80.46 | b | 90.90 | a | 99.83 | 104.23 | 103.20 | a | 91.17 | 79.26 | 65.77 | 55.65 | 80.56 | ||||||||||
1997 | 57.62 | g | 60.89 | a | 76.10 | a | 76.07 | a | 93.68 | 94.80 | 100.33 | a | 101.08 | g | 91.53 | 78.87 | 65.37 | 53.40 | a | 79.10 | b | |||||
1998 | 57.18 | c | 55.50 | 66.90 | 71.23 | 80.74 | 91.46 | b | 102.03 | 101.90 | b | 90.67 | 77.48 | 64.23 | 56.03 | 76.28 | ||||||||||
1999 | 59.65 | 63.04 | 72.00 | a | 70.63 | 86.16 | 96.72 | a | 99.45 | 100.33 | a | 94.59 | a | 85.94 | 70.93 | 59.45 | 79.91 | |||||||||
2000 | 60.43 | j | ----- | z | ----- | z | ----- | z | 92.39 | m | 100.86 | i | 104.83 | h | 102.84 | f | 95.33 | l | 80.22 | h | 60.52 | g | 60.42 | g | ----- | z |
2001 | 54.64 | f | 59.28 | j | 65.73 | p | 80.07 | o | 95.05 | j | 101.42 | k | 102.79 | q | 106.53 | p | 98.00 | o | 87.00 | l | 73.50 | n | ----- | z | ----- | z |
2002 | 59.33 | v | 67.17 | v | ----- | z | ----- | z | ----- | z | ----- | z | 104.75 | o | 101.06 | n | 93.33 | o | 76.38 | o | 66.13 | o | 55.71 | q | ----- | z |
2003 | 64.93 | q | 55.14 | n | 68.06 | m | 72.23 | 88.87 | ----- | z | ----- | z | ----- | z | 96.00 | 86.81 | 61.79 | b | 56.35 | 77.01 | f | |||||
2004 | 55.25 | c | 55.96 | b | 76.13 | 78.67 | o | 87.81 | d | 97.84 | e | 100.47 | n | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 74.60 | g | |
2005 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 54.45 | 59.89 | 67.65 | 76.47 | 86.01 | 95.89 | 101.53 | 99.53 | 92.60 | 79.89 | 64.61 | 55.58 | 77.95 | |||||||||||||
S.D. | 4.21 | 4.26 | 4.64 | 4.32 | 3.89 | 3.00 | 1.94 | 2.14 | 2.68 | 3.73 | 3.49 | 3.48 | 1.47 | |||||||||||||
SKEW | -1.24 | -0.13 | 0.47 | 0.12 | -0.29 | 0.09 | 0.23 | -0.18 | -0.75 | 0.08 | -0.21 | 0.05 | 0.08 | |||||||||||||
MAX | 63.80 | 68.54 | 80.84 | 87.04 | 95.34 | 101.69 | 105.87 | 104.35 | 96.80 | 88.19 | 71.50 | 63.71 | 81.54 | |||||||||||||
MIN | 39.13 | 49.50 | 58.77 | 66.63 | 76.26 | 89.47 | 97.68 | 93.35 | 85.34 | 71.33 | 56.17 | 47.00 | 74.33 | |||||||||||||
YRS | 65 | 68 | 68 | 65 | 68 | 67 | 65 | 65 | 69 | 69 | 69 | 69 | 60 |