YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1927 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1928 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1929 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1930 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1931 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1932 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1933 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1934 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1935 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1936 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1937 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1938 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1939 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1940 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1941 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1942 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1943 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1944 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1945 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1946 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1947 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1948 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1949 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1950 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1951 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1952 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1953 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1954 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1955 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1956 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1957 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1958 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1959 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1960 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1961 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1962 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 101.00 | 99.00 | 95.00 | 90.00 | 79.00 | 73.00 | ----- | z | ||||||
1963 | 73.00 | a | 76.00 | 87.00 | 89.00 | 96.00 | 95.00 | 100.00 | 95.00 | 95.00 | 91.00 | 78.00 | 71.00 | 100.00 | a | |||||||||||
1964 | 71.00 | 62.00 | 72.00 | 87.00 | 97.00 | 99.00 | 102.00 | 102.00 | 95.00 | 88.00 | 79.00 | 75.00 | 102.00 | |||||||||||||
1965 | 72.00 | 76.00 | 77.00 | 96.00 | 94.00 | 95.00 | 97.00 | 96.00 | 94.00 | 93.00 | 79.00 | 75.00 | 97.00 | |||||||||||||
1966 | 65.00 | 66.00 | 82.00 | 85.00 | 96.00 | 98.00 | 102.00 | 97.00 | 90.00 | 84.00 | 82.00 | 72.00 | 102.00 | |||||||||||||
1967 | 75.00 | 76.00 | 86.00 | 87.00 | 95.00 | 95.00 | 96.00 | 98.00 | 94.00 | 91.00 | 80.00 | 70.00 | 98.00 | |||||||||||||
1968 | 69.00 | 70.00 | 82.00 | 81.00 | 93.00 | 108.00 | 96.00 | 97.00 | 93.00 | 90.00 | 77.00 | 70.00 | 108.00 | |||||||||||||
1969 | 75.00 | 71.00 | 74.00 | 85.00 | 92.00 | 99.00 | 101.00 | 101.00 | 92.00 | 90.00 | 75.00 | 72.00 | 101.00 | |||||||||||||
1970 | 75.00 | 78.00 | 78.00 | 82.00 | 93.00 | 103.00 | 99.00 | 99.00 | 97.00 | 85.00 | 80.00 | 76.00 | 103.00 | |||||||||||||
1971 | 74.00 | 74.00 | 87.00 | 90.00 | 94.00 | 94.00 | 101.00 | 90.00 | 94.00 | 85.00 | 79.00 | 74.00 | 101.00 | |||||||||||||
1972 | 77.00 | 80.00 | 84.00 | 91.00 | 92.00 | 97.00 | 99.00 | 96.00 | 92.00 | 89.00 | 72.00 | 70.00 | 99.00 | |||||||||||||
1973 | 64.00 | 70.00 | 72.00 | 81.00 | 91.00 | 100.00 | 100.00 | 100.00 | 92.00 | 92.00 | 82.00 | 75.00 | 100.00 | |||||||||||||
1974 | 78.00 | 74.00 | 85.00 | 88.00 | 98.00 | 101.00 | 102.00 | 96.00 | 93.00 | 85.00 | 75.00 | 68.00 | 102.00 | |||||||||||||
1975 | 77.00 | 75.00 | 79.00 | 85.00 | 88.00 | 100.00 | 93.00 | 98.00 | 95.00 | 90.00 | 82.00 | 75.00 | 100.00 | |||||||||||||
1976 | 70.00 | 79.00 | 81.00 | 86.00 | 94.00 | 102.00 | 96.00 | 96.00 | 92.00 | 86.00 | 76.00 | 70.00 | 102.00 | |||||||||||||
1977 | 58.00 | 75.00 | 78.00 | 86.00 | 95.00 | 105.00 | 101.00 | 101.00 | 96.00 | 92.00 | 80.00 | 72.00 | 105.00 | |||||||||||||
1978 | 65.00 | 65.00 | 81.00 | 89.00 | 97.00 | 105.00 | 105.00 | 99.00 | 95.00 | 88.00 | 79.00 | 72.00 | 105.00 | |||||||||||||
1979 | 65.00 | 81.00 | 78.00 | 86.00 | 91.00 | 98.00 | 98.00 | 93.00 | 98.00 | 96.00 | 71.00 | 70.00 | 98.00 | |||||||||||||
1980 | 72.00 | 78.00 | 74.00 | 86.00 | 89.00 | 105.00 | 101.00 | 98.00 | 95.00 | 86.00 | 86.00 | 75.00 | 105.00 | |||||||||||||
1981 | 73.00 | 78.00 | 80.00 | 90.00 | 91.00 | 106.00 | 101.00 | 93.00 | 93.00 | 87.00 | 80.00 | 75.00 | 106.00 | |||||||||||||
1982 | 68.00 | 77.00 | 82.00 | 87.00 | a | 88.00 | 97.00 | 96.00 | 103.00 | 96.00 | 86.00 | a | 83.00 | 70.00 | 103.00 | b | ||||||||||
1983 | 68.00 | 71.00 | 80.00 | 85.00 | b | 88.00 | 100.00 | 101.00 | 98.00 | 99.00 | b | 90.00 | 80.00 | 70.00 | 101.00 | d | ||||||||||
1984 | 72.00 | d | 73.00 | 81.00 | a | 86.00 | b | 95.00 | a | 95.00 | a | 92.00 | 95.00 | 97.00 | 86.00 | 78.00 | 79.00 | c | 97.00 | l | ||||||
1985 | 67.00 | a | 69.00 | 78.00 | b | 84.00 | b | 93.00 | b | 97.00 | a | 95.00 | 99.00 | a | 93.00 | a | 87.00 | 77.00 | c | 70.00 | a | 99.00 | n | |||
1986 | 80.00 | 82.00 | 87.00 | a | 88.00 | 95.00 | a | 94.00 | 100.00 | 100.00 | 89.00 | 83.00 | 75.00 | 60.00 | 100.00 | b | ||||||||||
1987 | 68.00 | a | 74.00 | 75.00 | 92.00 | 86.00 | a | 99.00 | 98.00 | 96.00 | 87.00 | b | 91.00 | 78.00 | 74.00 | 99.00 | d | |||||||||
1988 | 70.00 | 75.00 | 82.00 | 82.00 | 94.00 | 97.00 | 95.00 | 97.00 | 93.00 | 89.00 | 79.00 | 64.00 | 97.00 | |||||||||||||
1989 | 69.00 | 83.00 | 91.00 | 96.00 | 98.00 | 97.00 | 98.00 | 99.00 | 92.00 | 91.00 | 78.00 | 70.00 | 99.00 | |||||||||||||
1990 | 70.00 | 75.00 | 79.00 | 86.00 | 94.00 | 108.00 | 95.00 | 97.00 | 94.00 | 84.00 | 81.00 | 73.00 | 108.00 | |||||||||||||
1991 | 64.00 | 71.00 | 79.00 | 88.00 | 95.00 | 96.00 | 96.00 | 93.00 | 91.00 | 90.00 | 76.00 | 66.00 | 96.00 | |||||||||||||
1992 | 61.00 | 70.00 | 76.00 | 88.00 | 93.00 | 95.00 | 101.00 | 97.00 | 94.00 | 88.00 | 73.00 | 69.00 | 101.00 | |||||||||||||
1993 | 65.00 | 71.00 | 80.00 | 87.00 | 89.00 | 98.00 | 102.00 | 95.00 | 90.00 | 86.00 | 73.00 | 73.00 | 102.00 | |||||||||||||
1994 | 73.00 | 73.00 | 79.00 | 88.00 | 92.00 | 104.00 | 100.00 | 102.00 | 96.00 | 90.00 | 81.00 | 69.00 | 104.00 | |||||||||||||
1995 | 70.00 | 76.00 | 85.00 | a | 85.00 | 93.00 | 99.00 | b | 105.00 | 94.00 | 99.00 | 84.00 | 80.00 | 76.00 | 105.00 | c | ||||||||||
1996 | 71.00 | 79.00 | 81.00 | 92.00 | 99.00 | 104.00 | 97.00 | 94.00 | 89.00 | 89.00 | 82.00 | a | 74.00 | 104.00 | a | |||||||||||
1997 | 73.00 | a | 73.00 | 85.00 | 81.00 | b | 90.00 | 99.00 | 99.00 | b | 93.00 | 97.00 | 90.00 | 81.00 | 68.00 | 99.00 | e | |||||||||
1998 | 69.00 | a | 75.00 | 83.00 | a | 87.00 | 98.00 | 105.00 | 100.00 | 94.00 | 95.00 | 88.00 | a | 77.00 | 72.00 | 105.00 | c | |||||||||
1999 | 77.00 | 76.00 | 77.00 | 85.00 | 89.00 | a | 100.00 | a | 97.00 | 96.00 | 96.00 | b | 87.00 | 82.00 | 70.00 | 100.00 | d | |||||||||
2000 | 77.00 | 78.00 | 78.00 | 89.00 | 100.00 | 98.00 | a | 100.00 | 98.00 | 99.00 | a | 96.00 | 73.00 | a | 68.00 | b | 100.00 | e | ||||||||
2001 | 56.00 | 73.00 | 79.00 | 86.00 | a | 98.00 | a | 101.00 | 102.00 | 99.00 | 96.00 | 88.00 | a | 82.00 | 70.00 | 102.00 | c | |||||||||
2002 | 72.00 | 78.00 | 83.00 | 89.00 | 93.00 | 100.00 | 101.00 | 102.00 | 91.00 | 85.00 | 74.00 | 70.00 | 102.00 | |||||||||||||
2003 | 73.00 | 71.00 | 78.00 | 85.00 | 100.00 | 96.00 | 103.00 | 102.00 | 93.00 | 88.00 | 78.00 | 74.00 | 103.00 | |||||||||||||
2004 | 70.00 | 75.00 | 84.00 | 82.00 | 94.00 | 100.00 | 95.00 | 95.00 | 93.00 | 87.00 | 76.00 | 71.00 | 100.00 | |||||||||||||
2005 | 72.00 | 72.00 | 81.00 | 82.00 | 97.00 | 98.00 | 102.00 | 93.00 | 96.00 | 87.00 | 81.00 | 73.00 | 102.00 | |||||||||||||
2006 | 74.00 | 77.00 | 84.00 | 90.00 | 99.00 | 102.00 | 101.00 | 97.00 | 89.00 | 91.00 | 85.00 | 68.00 | 102.00 | |||||||||||||
2007 | 65.00 | 74.00 | 83.00 | 84.00 | a | 88.00 | 94.00 | 93.00 | 105.00 | 94.00 | 90.00 | 82.00 | 71.00 | 105.00 | a | |||||||||||
2008 | 67.00 | 74.00 | 84.00 | 87.00 | 92.00 | 101.00 | 95.00 | 97.00 | 90.00 | 86.00 | 82.00 | 75.00 | 101.00 | |||||||||||||
2009 | 74.00 | 78.00 | 84.00 | 89.00 | 96.00 | 96.00 | 99.00 | 96.00 | 92.00 | a | 92.00 | 79.00 | 62.00 | 99.00 | a | |||||||||||
2010 | 68.00 | 65.00 | 84.00 | 85.00 | 92.00 | 99.00 | 95.00 | 97.00 | 99.00 | 89.00 | 78.00 | 76.00 | 99.00 | |||||||||||||
2011 | 73.00 | 79.00 | 85.00 | 90.00 | 98.00 | 106.00 | 101.00 | 104.00 | 102.00 | 90.00 | 78.00 | 64.00 | 106.00 | |||||||||||||
2012 | 72.00 | 74.00 | 88.00 | 97.00 | 96.00 | 103.00 | 99.00 | 104.00 | 101.00 | 88.00 | 82.00 | 72.00 | 104.00 | |||||||||||||
2013 | 74.00 | 69.00 | 83.00 | 89.00 | 96.00 | 105.00 | 97.00 | 98.00 | 99.00 | 92.00 | 76.00 | 68.00 | 105.00 | |||||||||||||
2014 | 68.00 | 79.00 | 80.00 | 87.00 | 92.00 | 100.00 | 102.00 | 100.00 | 98.00 | 88.00 | 77.00 | 72.00 | 102.00 | |||||||||||||
2015 | 70.00 | 79.00 | 85.00 | 84.00 | 85.00 | 93.00 | 99.00 | 103.00 | 97.00 | 89.00 | 79.00 | 72.00 | 103.00 | |||||||||||||
2016 | 73.00 | 83.00 | 80.00 | 84.00 | 90.00 | 100.00 | 105.00 | 98.00 | 93.00 | 92.00 | 83.00 | 70.00 | 105.00 | |||||||||||||
2017 | 71.00 | 83.00 | 89.00 | 87.00 | 92.00 | 109.00 | 99.00 | 92.00 | 97.00 | 86.00 | 80.00 | 72.00 | 109.00 | |||||||||||||
2018 | 71.00 | 77.00 | 86.00 | 90.00 | 98.00 | 103.00 | 103.00 | 97.00 | 94.00 | 90.00 | 71.00 | 66.00 | 103.00 | |||||||||||||
2019 | 69.00 | 73.00 | 82.00 | 89.00 | 89.00 | 98.00 | 104.00 | 105.00 | 98.00 | 83.00 | 77.00 | 66.00 | 105.00 | |||||||||||||
2020 | 66.00 | 72.00 | 84.00 | 86.00 | 98.00 | 100.00 | 107.00 | 103.00 | 98.00 | 95.00 | 84.00 | 70.00 | 107.00 | |||||||||||||
2021 | 66.00 | 75.00 | 81.00 | 88.00 | 91.00 | 104.00 | 95.00 | 101.00 | 97.00 | 92.00 | 82.00 | 74.00 | 104.00 | |||||||||||||
2022 | 67.00 | 74.00 | 91.00 | 91.00 | 98.00 | 106.00 | 106.00 | 101.00 | 96.00 | 87.00 | 76.00 | 70.00 | 106.00 | |||||||||||||
2023 | 70.00 | 76.00 | 79.00 | 88.00 | 94.00 | 104.00 | 106.00 | 106.00 | 104.00 | 90.00 | 85.00 | 71.00 | 106.00 | |||||||||||||
2024 | 66.00 | 80.00 | 77.00 | c | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 70.11 | 74.76 | 81.44 | 87.13 | 93.62 | 100.08 | 99.47 | 98.05 | 94.73 | 88.68 | 78.79 | 71.00 | 102.42 | |||||||||||||
S.D. | 4.63 | 4.43 | 4.20 | 3.43 | 3.62 | 3.98 | 3.44 | 3.56 | 3.34 | 2.96 | 3.43 | 3.54 | 2.97 | |||||||||||||
SKEW | -0.54 | -0.46 | -0.00 | 0.59 | -0.25 | 0.31 | -0.01 | 0.21 | 0.19 | 0.25 | -0.30 | -0.66 | 0.02 | |||||||||||||
MAX | 80.00 | 83.00 | 91.00 | 97.00 | 100.00 | 109.00 | 107.00 | 106.00 | 104.00 | 96.00 | 86.00 | 79.00 | 109.00 | |||||||||||||
MIN | 56.00 | 62.00 | 72.00 | 81.00 | 85.00 | 93.00 | 92.00 | 90.00 | 87.00 | 83.00 | 71.00 | 60.00 | 96.00 | |||||||||||||
YRS | 62 | 62 | 62 | 61 | 61 | 61 | 62 | 62 | 62 | 62 | 62 | 62 | 57 |