YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1963 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1964 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | 76.00 | 79.00 | 78.00 | 89.00 | 97.00 | 100.00 | a | 105.00 | 103.00 | 100.00 | ----- | z | 75.00 | 69.00 | ----- | z | ||||||||||
1971 | 75.00 | 70.00 | 87.00 | 84.00 | 92.00 | 105.00 | a | 108.00 | a | 96.00 | 99.00 | 84.00 | m | 83.00 | 76.00 | 108.00 | o | |||||||||
1972 | 70.00 | b | 80.00 | ----- | z | 90.00 | b | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 69.00 | e | ----- | z | ----- | z | |
1973 | ----- | z | 67.00 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 87.00 | u | 85.00 | a | 77.00 | ----- | z | ||
1974 | 70.00 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 77.00 | 67.00 | ----- | z | |||
1975 | 70.00 | d | 67.00 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 96.00 | d | 89.00 | q | 79.00 | e | 76.00 | b | ----- | 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 | 88.00 | g | 87.00 | 79.00 | d | ----- | z | |
1981 | 74.00 | 80.00 | 80.00 | 91.00 | 90.00 | 108.00 | 104.00 | 97.00 | 95.00 | ----- | z | ----- | z | ----- | z | ----- | z | |||||||||
1982 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 92.00 | d | 100.00 | g | 99.00 | f | 96.00 | 85.00 | j | 70.00 | 78.00 | ----- | z | |||
1983 | 72.00 | 70.00 | 78.00 | 84.00 | 92.00 | 102.00 | 101.00 | 101.00 | 102.00 | 97.00 | 84.00 | 63.00 | 102.00 | |||||||||||||
1984 | 68.00 | 73.00 | 76.00 | 80.00 | 97.00 | 97.00 | 100.00 | 104.00 | 99.00 | a | 86.00 | 78.00 | 69.00 | a | 104.00 | b | ||||||||||
1985 | 62.00 | a | ----- | z | 78.00 | 87.00 | 96.00 | 109.00 | 108.00 | 104.00 | a | 99.00 | f | 88.00 | j | 75.00 | f | 62.00 | ----- | z | ||||||
1986 | 75.00 | 80.00 | 89.00 | 92.00 | a | 96.00 | 104.00 | 107.00 | 106.00 | 93.00 | 83.00 | a | 71.00 | 60.00 | 107.00 | b | ||||||||||
1987 | 70.00 | a | 71.00 | 78.00 | 94.00 | a | 94.00 | 103.00 | 110.00 | 103.00 | a | 92.00 | 84.00 | 80.00 | 72.00 | 110.00 | c | |||||||||
1988 | 64.00 | a | 73.00 | 84.00 | h | 88.00 | a | 96.00 | 106.00 | 106.00 | 103.00 | 94.00 | b | 87.00 | 80.00 | 73.00 | 106.00 | l | ||||||||
1989 | 80.00 | 78.00 | b | 94.00 | b | 98.00 | a | 96.00 | 93.00 | a | 100.00 | 100.00 | 95.00 | b | 92.00 | 82.00 | 69.00 | 100.00 | h | |||||||
1990 | 77.00 | 72.00 | 82.00 | 87.00 | 97.00 | 105.00 | 102.00 | 101.00 | 98.00 | 89.00 | 83.00 | 72.00 | 105.00 | |||||||||||||
1991 | 62.00 | 75.00 | 80.00 | 84.00 | 91.00 | 100.00 | 102.00 | 97.00 | 91.00 | 92.00 | 76.00 | 68.00 | 102.00 | |||||||||||||
1992 | 68.00 | 72.00 | 78.00 | 89.00 | 96.00 | a | 94.00 | 101.00 | 98.00 | 96.00 | 90.00 | 71.00 | 68.00 | 101.00 | a | |||||||||||
1993 | 66.00 | 68.00 | 77.00 | 85.00 | 88.00 | 100.00 | 104.00 | 98.00 | 94.00 | d | 92.00 | c | 71.00 | 75.00 | 104.00 | g | ||||||||||
1994 | 71.00 | 76.00 | b | 82.00 | 88.00 | a | 92.00 | 104.00 | 107.00 | 101.00 | 98.00 | 94.00 | 82.00 | 71.00 | 107.00 | c | ||||||||||
1995 | 75.00 | 78.00 | 89.00 | 84.00 | 91.00 | 98.00 | 101.00 | a | 101.00 | 106.00 | 89.00 | 82.00 | a | 78.00 | 106.00 | b | ||||||||||
1996 | 72.00 | 78.00 | 78.00 | 94.00 | 102.00 | 100.00 | 101.00 | 96.00 | 90.00 | 92.00 | 84.00 | 78.00 | 102.00 | |||||||||||||
1997 | 80.00 | 74.00 | 84.00 | 83.00 | 92.00 | 103.00 | 105.00 | 97.00 | 99.00 | 90.00 | a | 77.00 | 63.00 | 105.00 | a | |||||||||||
1998 | 72.00 | 75.00 | 88.00 | 88.00 | 98.00 | 106.00 | 104.00 | 96.00 | 98.00 | 92.00 | d | 85.00 | 74.00 | 106.00 | d | |||||||||||
1999 | 74.00 | 74.00 | 81.00 | 88.00 | 92.00 | 99.00 | 100.00 | 95.00 | 95.00 | 88.00 | 83.00 | 73.00 | 100.00 | |||||||||||||
2000 | 72.00 | 80.00 | 77.00 | 90.00 | 101.00 | 97.00 | 99.00 | c | 102.00 | 102.00 | 98.00 | 71.00 | 71.00 | 102.00 | c | |||||||||||
2001 | 72.00 | 69.00 | 79.00 | 91.00 | 93.00 | 97.00 | 101.00 | 100.00 | 96.00 | 90.00 | 85.00 | 79.00 | 101.00 | |||||||||||||
2002 | 78.00 | 78.00 | 86.00 | 95.00 | 93.00 | 101.00 | 102.00 | 105.00 | 93.00 | 89.00 | 81.00 | f | 69.00 | 105.00 | f | |||||||||||
2003 | 75.00 | 79.00 | 84.00 | 89.00 | 101.00 | 94.00 | 106.00 | b | 105.00 | 96.00 | 93.00 | 80.00 | 72.00 | 106.00 | b | |||||||||||
2004 | 69.00 | 77.00 | 87.00 | 87.00 | 98.00 | 100.00 | 100.00 | 98.00 | 101.00 | 83.00 | 79.00 | 74.00 | 101.00 | |||||||||||||
2005 | 75.00 | 74.00 | 81.00 | 84.00 | 99.00 | 101.00 | a | 105.00 | 102.00 | 101.00 | 93.00 | 86.00 | 76.00 | 105.00 | a | |||||||||||
2006 | 82.00 | 76.00 | 82.00 | 96.00 | a | 101.00 | 105.00 | 104.00 | 106.00 | 89.00 | 93.00 | a | 85.00 | 68.00 | 106.00 | b | ||||||||||
2007 | 50.00 | 71.00 | a | 87.00 | 85.00 | a | 89.00 | 96.00 | 99.00 | 104.00 | 99.00 | 93.00 | 82.00 | a | 77.00 | 104.00 | c | |||||||||
2008 | 72.00 | 73.00 | 84.00 | 90.00 | 95.00 | 106.00 | 100.00 | 105.00 | 90.00 | 88.00 | 83.00 | 71.00 | a | 106.00 | a | |||||||||||
2009 | 75.00 | 76.00 | 83.00 | 88.00 | 96.00 | 100.00 | a | 101.00 | 101.00 | 94.00 | 95.00 | 87.00 | 69.00 | 101.00 | a | |||||||||||
2010 | 67.00 | 57.00 | 89.00 | 88.00 | 97.00 | 102.00 | f | 101.00 | 99.00 | 101.00 | 88.00 | a | 81.00 | 74.00 | 102.00 | g | ||||||||||
2011 | 71.00 | 80.00 | 84.00 | 91.00 | 100.00 | a | 107.00 | 107.00 | b | 103.00 | 101.00 | 92.00 | 77.00 | 72.00 | 107.00 | c | ||||||||||
2012 | 70.00 | 73.00 | 89.00 | ----- | z | 96.00 | 108.00 | 104.00 | ----- | z | 100.00 | ----- | z | 82.00 | 74.00 | ----- | z | |||||||||
2013 | 77.00 | 71.00 | 82.00 | 87.00 | 98.00 | 108.00 | 106.00 | 101.00 | 102.00 | 89.00 | 80.00 | 73.00 | 108.00 | |||||||||||||
2014 | 72.00 | 78.00 | 80.00 | a | 87.00 | b | 96.00 | 99.00 | 107.00 | 95.00 | v | 96.00 | d | 89.00 | 83.00 | a | 69.00 | ----- | z | |||||||
2015 | 76.00 | 84.00 | 84.00 | 85.00 | 86.00 | 102.00 | 103.00 | 101.00 | 100.00 | 94.00 | 82.00 | 71.00 | 103.00 | |||||||||||||
2016 | 69.00 | 82.00 | 85.00 | 89.00 | 89.00 | 99.00 | 104.00 | 98.00 | 95.00 | 97.00 | 88.00 | 73.00 | 104.00 | |||||||||||||
2017 | 71.00 | 85.00 | 89.00 | 88.00 | 92.00 | 102.00 | a | 98.00 | 90.00 | 94.00 | a | 88.00 | 88.00 | 74.00 | 102.00 | b | ||||||||||
2018 | 82.00 | 76.00 | 86.00 | 90.00 | 94.00 | 104.00 | 103.00 | 96.00 | 97.00 | 94.00 | 71.00 | 67.00 | 104.00 | |||||||||||||
2019 | 68.00 | 75.00 | 83.00 | 89.00 | 90.00 | 98.00 | 106.00 | 101.00 | 99.00 | 90.00 | 78.00 | 74.00 | 106.00 | |||||||||||||
2020 | 68.00 | 76.00 | 84.00 | 84.00 | 94.00 | g | 102.00 | 104.00 | 101.00 | 98.00 | 91.00 | 83.00 | 68.00 | 104.00 | g | |||||||||||
2021 | 70.00 | 75.00 | 86.00 | 88.00 | 88.00 | 104.00 | 102.00 | 102.00 | 104.00 | 88.00 | 85.00 | 76.00 | 104.00 | |||||||||||||
2022 | 66.00 | 71.00 | 86.00 | 89.00 | 98.00 | a | 104.00 | 103.00 | 100.00 | k | 91.00 | v | 89.00 | 76.00 | 72.00 | ----- | z | |||||||||
2023 | 69.00 | 74.00 | 79.00 | 91.00 | 93.00 | 103.00 | 102.00 | 100.00 | 102.00 | 89.00 | 88.00 | 76.00 | d | 103.00 | d | |||||||||||
2024 | 64.00 | 77.00 | 79.00 | 85.00 | k | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 71.31 | 74.83 | 83.00 | 88.36 | 94.60 | 101.48 | 103.25 | 100.41 | 97.18 | 90.51 | 80.30 | 71.85 | 104.19 | |||||||||||||
S.D. | 5.67 | 4.96 | 4.25 | 3.64 | 3.94 | 4.24 | 2.85 | 3.46 | 3.91 | 3.52 | 5.27 | 4.50 | 2.44 | |||||||||||||
SKEW | -0.91 | -0.80 | 0.32 | 0.37 | -0.12 | -0.29 | 0.28 | -0.58 | -0.09 | -0.06 | -0.61 | -0.58 | 0.22 | |||||||||||||
MAX | 82.00 | 85.00 | 94.00 | 98.00 | 102.00 | 109.00 | 110.00 | 106.00 | 106.00 | 98.00 | 88.00 | 79.00 | 110.00 | |||||||||||||
MIN | 50.00 | 57.00 | 76.00 | 80.00 | 86.00 | 92.00 | 98.00 | 90.00 | 89.00 | 83.00 | 69.00 | 60.00 | 100.00 | |||||||||||||
YRS | 48 | 47 | 44 | 44 | 43 | 44 | 44 | 41 | 44 | 39 | 47 | 48 | 31 |