YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1937 | 56.00 | a | 66.00 | 82.00 | 80.00 | b | 87.00 | a | 100.00 | a | 105.00 | 102.00 | b | 100.00 | a | 84.00 | 68.00 | a | 69.00 | a | 105.00 | j | ||||
1938 | 55.00 | a | 55.00 | 66.00 | a | 80.00 | 90.00 | e | 97.00 | a | 108.00 | a | 101.00 | a | 98.00 | 84.00 | 61.00 | 60.00 | b | 108.00 | l | |||||
1939 | 60.00 | c | 61.00 | 79.00 | a | 90.00 | 90.00 | 109.00 | b | 111.00 | b | 105.00 | 98.00 | a | 91.00 | b | 75.00 | 70.00 | a | 111.00 | l | |||||
1940 | 61.00 | a | 68.00 | 79.00 | b | ----- | 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 | 88.00 | s | 91.00 | d | 68.00 | 67.00 | ----- | z | ||
1959 | 66.00 | 70.00 | 72.00 | 81.00 | 88.00 | 102.00 | a | 113.00 | 103.00 | 100.00 | a | 80.00 | 72.00 | 60.00 | a | 113.00 | c | |||||||||
1960 | 61.00 | a | 61.00 | 83.00 | 84.00 | a | 92.00 | a | 100.00 | 115.00 | 106.00 | a | 98.00 | a | 91.00 | 70.00 | 58.00 | 115.00 | e | |||||||
1961 | 59.00 | 65.00 | a | 78.00 | 80.00 | 91.00 | 110.00 | 105.00 | 116.00 | 92.00 | 90.00 | 67.00 | 60.00 | 116.00 | a | |||||||||||
1962 | 63.00 | a | 63.00 | a | 75.00 | a | 88.00 | 77.00 | 100.00 | 105.00 | 102.00 | c | 97.00 | 87.00 | 66.00 | 58.00 | a | 105.00 | g | |||||||
1963 | 52.00 | a | 73.00 | 74.00 | 72.00 | 91.00 | 101.00 | 98.00 | 103.00 | 102.00 | 88.00 | 70.00 | 55.00 | 103.00 | a | |||||||||||
1964 | 65.00 | 61.00 | 80.00 | 81.00 | 90.00 | 100.00 | 107.00 | 102.00 | 95.00 | 90.00 | 64.00 | 60.00 | 107.00 | |||||||||||||
1965 | 61.00 | 71.00 | a | 74.00 | 85.00 | 89.00 | 98.00 | 105.00 | 104.00 | 90.00 | 90.00 | 67.00 | 62.00 | a | 105.00 | b | ||||||||||
1966 | 61.00 | a | 63.00 | 85.00 | a | 84.00 | 98.00 | 99.00 | 104.00 | 106.00 | 103.00 | 86.00 | 73.00 | 60.00 | a | 106.00 | c | |||||||||
1967 | 62.00 | 68.00 | c | 71.00 | a | 66.00 | 92.00 | 101.00 | 108.00 | 110.00 | 102.00 | 86.00 | 68.00 | 61.00 | 110.00 | d | ||||||||||
1968 | 65.00 | 73.00 | 78.00 | 90.00 | 89.00 | 104.00 | 111.00 | 102.00 | 99.00 | 87.00 | 59.00 | 63.00 | 111.00 | |||||||||||||
1969 | 55.00 | b | 54.00 | 76.00 | 83.00 | a | 95.00 | 103.00 | 103.00 | 108.00 | 103.00 | 78.00 | 71.00 | 61.00 | 108.00 | c | ||||||||||
1970 | 63.00 | 64.00 | 66.00 | 74.00 | 94.00 | 106.00 | 106.00 | a | 106.00 | 92.00 | 92.00 | 67.00 | 61.00 | 106.00 | a | |||||||||||
1971 | 61.00 | 66.00 | 65.00 | 80.00 | 88.00 | 98.00 | 110.00 | 109.00 | 97.00 | a | 92.00 | 68.00 | 60.00 | 110.00 | a | |||||||||||
1972 | 59.00 | 67.00 | 74.00 | 83.00 | a | 97.00 | 101.00 | 109.00 | 112.00 | 97.00 | 85.00 | 60.00 | 65.00 | a | 112.00 | b | ||||||||||
1973 | 61.00 | 64.00 | 70.00 | 83.00 | 100.00 | a | 103.00 | 106.00 | 106.00 | 103.00 | 81.00 | 67.00 | 63.00 | 106.00 | a | |||||||||||
1974 | 65.00 | 61.00 | 71.00 | 78.00 | 86.00 | 104.00 | 106.00 | 105.00 | 98.00 | 89.00 | 69.00 | 58.00 | 106.00 | |||||||||||||
1975 | 63.00 | 64.00 | 65.00 | 71.00 | a | 93.00 | 95.00 | 112.00 | 100.00 | 100.00 | 94.00 | 79.00 | 68.00 | a | 112.00 | b | ||||||||||
1976 | 64.00 | 62.00 | 75.00 | a | 83.00 | 95.00 | 102.00 | 105.00 | 101.00 | 98.00 | a | 88.00 | 69.00 | 58.00 | 105.00 | b | ||||||||||
1977 | 52.00 | 70.00 | 74.00 | 96.00 | 88.00 | 108.00 | 106.00 | a | 109.00 | 94.00 | a | 81.00 | 68.00 | 63.00 | 109.00 | b | ||||||||||
1978 | 56.00 | ----- | z | 78.00 | a | ----- | 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 | ----- | z | ----- | z | ----- | z | ----- | z |
1981 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1982 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1983 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1984 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1985 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1986 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1987 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1988 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1989 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1990 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1991 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1992 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1993 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1994 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1995 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1996 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1997 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1998 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1999 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2000 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2001 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2002 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2003 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2004 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2005 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2006 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2007 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2008 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2009 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2010 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2011 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2012 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2013 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2014 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2015 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2016 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2017 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2018 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2019 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2020 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2021 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2022 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2023 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2024 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 60.25 | 64.78 | 74.58 | 81.45 | 90.91 | 101.86 | 107.18 | 105.36 | 98.00 | 87.17 | 68.09 | 61.74 | 108.53 | |||||||||||||
S.D. | 4.04 | 4.96 | 5.62 | 6.72 | 4.82 | 3.83 | 3.79 | 4.02 | 3.68 | 4.29 | 4.51 | 3.84 | 3.48 | |||||||||||||
SKEW | -0.63 | -0.28 | -0.16 | -0.23 | -0.63 | 0.54 | -0.01 | 0.91 | -0.50 | -0.53 | 0.07 | 0.68 | 0.44 | |||||||||||||
MAX | 66.00 | 73.00 | 85.00 | 96.00 | 100.00 | 110.00 | 115.00 | 116.00 | 103.00 | 94.00 | 79.00 | 70.00 | 116.00 | |||||||||||||
MIN | 52.00 | 54.00 | 65.00 | 66.00 | 77.00 | 95.00 | 98.00 | 100.00 | 90.00 | 78.00 | 59.00 | 55.00 | 103.00 | |||||||||||||
YRS | 24 | 23 | 24 | 22 | 22 | 22 | 22 | 22 | 22 | 23 | 23 | 23 | 17 |