YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
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 | 88.00 | c | 93.00 | e | 98.00 | b | 98.00 | 101.00 | 95.00 | 84.00 | 75.00 | a | 59.00 | a | ----- | z | ||||
1963 | 70.00 | b | 73.00 | 84.00 | 87.00 | m | 92.00 | 100.00 | 102.00 | 98.00 | 96.00 | a | 89.00 | c | 75.00 | a | 59.00 | 102.00 | t | |||||||
1964 | 64.00 | c | 58.00 | 77.00 | 82.00 | 94.00 | 98.00 | 104.00 | 102.00 | 94.00 | 88.00 | 74.00 | 67.00 | 104.00 | c | |||||||||||
1965 | 66.00 | 72.00 | a | 76.00 | 94.00 | 92.00 | 99.00 | 98.00 | 94.00 | 88.00 | a | 86.00 | a | 74.00 | b | 62.00 | 99.00 | e | ||||||||
1966 | 58.00 | 61.00 | a | 79.00 | 87.00 | 92.00 | 96.00 | 100.00 | 99.00 | a | 92.00 | 86.00 | 76.00 | 71.00 | 100.00 | b | ||||||||||
1967 | 69.00 | c | 73.00 | 82.00 | 86.00 | 93.00 | 97.00 | 100.00 | 98.00 | 90.00 | 86.00 | 76.00 | 62.00 | a | 100.00 | d | ||||||||||
1968 | 64.00 | 72.00 | 78.00 | 80.00 | 93.00 | 100.00 | 98.00 | 90.00 | 92.00 | 88.00 | 75.00 | 56.00 | 100.00 | |||||||||||||
1969 | 72.00 | 71.00 | 82.00 | 87.00 | 95.00 | 99.00 | 102.00 | 98.00 | 92.00 | 88.00 | 70.00 | 66.00 | 102.00 | |||||||||||||
1970 | 68.00 | b | 72.00 | 74.00 | 82.00 | 97.00 | 100.00 | 98.00 | 96.00 | 91.00 | 81.00 | 76.00 | 67.00 | a | 100.00 | c | ||||||||||
1971 | 69.00 | 70.00 | b | 86.00 | 89.00 | 90.00 | 100.00 | 101.00 | 94.00 | 94.00 | a | 81.00 | a | 74.00 | 60.00 | 101.00 | d | |||||||||
1972 | 71.00 | 75.00 | c | 82.00 | 88.00 | 88.00 | 97.00 | 100.00 | 103.00 | 88.00 | 87.00 | c | 67.00 | 64.00 | b | 103.00 | h | |||||||||
1973 | 59.00 | a | 66.00 | 70.00 | d | 80.00 | 90.00 | 99.00 | a | 100.00 | 96.00 | 90.00 | 86.00 | 82.00 | 68.00 | b | 100.00 | h | ||||||||
1974 | 64.00 | g | 71.00 | 86.00 | 86.00 | 95.00 | 103.00 | 101.00 | 95.00 | 96.00 | a | 87.00 | 69.00 | 60.00 | f | 103.00 | n | |||||||||
1975 | 72.00 | c | 68.00 | 76.00 | f | 84.00 | 89.00 | 96.00 | 97.00 | 96.00 | 93.00 | 85.00 | b | 79.00 | d | 62.00 | e | 97.00 | t | |||||||
1976 | 61.00 | n | 71.00 | t | 82.00 | 84.00 | 92.00 | 98.00 | a | 97.00 | 97.00 | 96.00 | 82.00 | 72.00 | a | 56.00 | a | ----- | z | |||||||
1977 | 57.00 | 72.00 | 74.00 | 88.00 | 96.00 | 100.00 | 98.00 | 99.00 | 94.00 | 87.00 | 77.00 | 72.00 | 100.00 | |||||||||||||
1978 | 64.00 | 69.00 | 79.00 | 85.00 | 93.00 | b | 100.00 | 100.00 | 97.00 | 95.00 | 88.00 | 74.00 | 65.00 | 100.00 | b | |||||||||||
1979 | 58.00 | 76.00 | 76.00 | 83.00 | a | 88.00 | 100.00 | a | 101.00 | 96.00 | 100.00 | 96.00 | 74.00 | 65.00 | 101.00 | b | ||||||||||
1980 | 63.00 | 72.00 | 72.00 | 88.00 | 89.00 | 103.00 | 105.00 | 99.00 | c | 94.00 | a | 90.00 | 81.00 | 70.00 | 105.00 | d | ||||||||||
1981 | 67.00 | a | 78.00 | a | 80.00 | 93.00 | 95.00 | 109.00 | j | 108.00 | 105.00 | 96.00 | 89.00 | a | 76.00 | 71.00 | 109.00 | m | ||||||||
1982 | 76.00 | 73.00 | a | 79.00 | 86.00 | 91.00 | 107.00 | 107.00 | a | 98.00 | 98.00 | 88.00 | 76.00 | b | 60.00 | a | 107.00 | e | ||||||||
1983 | 58.00 | 68.00 | 82.00 | 84.00 | a | 98.00 | 109.00 | 106.00 | 101.00 | 103.00 | 83.00 | a | 78.00 | 66.00 | 109.00 | b | ||||||||||
1984 | 62.00 | a | 75.00 | 79.00 | 90.00 | 102.00 | 101.00 | 105.00 | 101.00 | 99.00 | 83.00 | a | 76.00 | 57.00 | 105.00 | b | ||||||||||
1985 | 64.00 | 72.00 | 78.00 | 87.00 | 98.00 | 106.00 | 108.00 | 103.00 | 99.00 | 85.00 | 77.00 | 65.00 | 108.00 | |||||||||||||
1986 | 71.00 | 79.00 | 83.00 | 90.00 | 95.00 | a | 106.00 | 104.00 | 104.00 | 95.00 | 85.00 | 73.00 | b | 60.00 | 106.00 | c | ||||||||||
1987 | 63.00 | 69.00 | 76.00 | 90.00 | 90.00 | 103.00 | 104.00 | 104.00 | 92.00 | 94.00 | 72.00 | 75.00 | 104.00 | |||||||||||||
1988 | 63.00 | 73.00 | 84.00 | 86.00 | 97.00 | 102.00 | 104.00 | 99.00 | 93.00 | 88.00 | 81.00 | 61.00 | 104.00 | |||||||||||||
1989 | 63.00 | 81.00 | 89.00 | 96.00 | 101.00 | 108.00 | 107.00 | 103.00 | 96.00 | 90.00 | 75.00 | 67.00 | 108.00 | |||||||||||||
1990 | 67.00 | 72.00 | 84.00 | 90.00 | 97.00 | 111.00 | 102.00 | 103.00 | 97.00 | 87.00 | 73.00 | 65.00 | 111.00 | |||||||||||||
1991 | 59.00 | 70.00 | 77.00 | b | 87.00 | 93.00 | 103.00 | 104.00 | 98.00 | 96.00 | 91.00 | 76.00 | 60.00 | 104.00 | b | |||||||||||
1992 | 60.00 | 69.00 | 77.00 | 94.00 | 93.00 | 101.00 | 105.00 | 103.00 | b | 97.00 | 87.00 | 72.00 | 64.00 | 105.00 | b | |||||||||||
1993 | 63.00 | 72.00 | a | 79.00 | 90.00 | a | 96.00 | 105.00 | 106.00 | 105.00 | a | 95.00 | 92.00 | 74.00 | a | 65.00 | b | 106.00 | f | |||||||
1994 | 76.00 | a | 73.00 | 81.00 | a | 90.00 | 99.00 | 113.00 | 111.00 | 104.00 | 95.00 | 87.00 | a | 76.00 | 65.00 | a | 113.00 | d | ||||||||
1995 | 63.00 | 77.00 | a | 83.00 | 87.00 | 95.00 | 104.00 | 108.00 | 109.00 | 102.00 | a | 89.00 | 79.00 | a | 75.00 | a | 109.00 | d | ||||||||
1996 | 70.00 | a | 78.00 | 79.00 | b | 95.00 | a | 103.00 | 108.00 | 105.00 | a | 103.00 | a | 98.00 | a | 92.00 | 78.00 | 72.00 | b | 108.00 | i | |||||
1997 | 72.00 | 68.00 | a | 86.00 | a | 85.00 | a | 98.00 | 102.00 | 109.00 | 102.00 | a | 98.00 | 89.00 | 78.00 | a | 59.00 | b | 109.00 | g | ||||||
1998 | 65.00 | 73.00 | 83.00 | 87.00 | 97.00 | 110.00 | 110.00 | a | 104.00 | a | 101.00 | 92.00 | 74.00 | 68.00 | 110.00 | b | ||||||||||
1999 | 72.00 | a | 75.00 | b | 81.00 | 90.00 | 94.00 | 108.00 | 110.00 | 98.00 | a | 95.00 | a | 91.00 | 79.00 | 65.00 | a | 110.00 | f | |||||||
2000 | 74.00 | 76.00 | 78.00 | a | 90.00 | 103.00 | 101.00 | b | 102.00 | 103.00 | 100.00 | 96.00 | c | 65.00 | 68.00 | a | 103.00 | g | ||||||||
2001 | 59.00 | a | 73.00 | 85.00 | a | 88.00 | a | 101.00 | b | 104.00 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ||
2002 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 95.00 | m | 84.00 | b | 72.00 | a | 62.00 | c | ----- | z |
2003 | 70.00 | c | 71.00 | b | 79.00 | e | 85.00 | d | 96.00 | a | 99.00 | b | 106.00 | c | 101.00 | c | 94.00 | a | 91.00 | 81.00 | c | 70.00 | c | ----- | z | |
2004 | 62.00 | i | 67.00 | 86.00 | b | 82.00 | b | 96.00 | d | 99.00 | b | 100.00 | i | 96.00 | h | 95.00 | e | 82.00 | a | 76.00 | a | 65.00 | k | ----- | z | |
2005 | 67.00 | c | 64.00 | d | 74.00 | f | 84.00 | q | 101.00 | h | 103.00 | j | 102.00 | q | 98.00 | h | 96.00 | b | 84.00 | b | 78.00 | 72.00 | ----- | z | ||
2006 | 70.00 | a | 80.00 | 79.00 | e | 89.00 | i | 98.00 | e | 103.00 | d | 103.00 | b | 95.00 | b | 87.00 | d | 87.00 | e | 73.00 | d | 65.00 | b | ----- | z | |
2007 | 62.00 | e | 70.00 | d | 83.00 | d | 83.00 | d | 100.00 | b | 102.00 | i | 102.00 | a | 101.00 | l | 96.00 | g | 88.00 | g | 77.00 | d | 72.00 | c | ----- | z |
2008 | 63.00 | ----- | z | 80.00 | e | 86.00 | l | 96.00 | e | 101.00 | b | 99.00 | d | 100.00 | d | 93.00 | f | 88.00 | h | 78.00 | e | 70.00 | e | ----- | z | |
2009 | 67.00 | b | 80.00 | g | 82.00 | i | 89.00 | g | 96.00 | d | ----- | z | 102.00 | h | ----- | z | ----- | z | ----- | z | 77.00 | e | ----- | z | ----- | z |
2010 | 58.00 | c | 64.00 | d | 87.00 | i | 83.00 | i | 96.00 | n | 106.00 | h | 104.00 | g | 99.00 | j | ----- | 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 | 98.00 | y | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2013 | ----- | z | ----- | z | ----- | z | ----- | z | 103.00 | j | 103.00 | m | 98.00 | b | 100.00 | f | 97.00 | c | 85.00 | g | 72.00 | e | 69.00 | i | ----- | z |
2014 | 72.00 | i | 77.00 | r | 77.00 | x | 85.00 | u | 97.00 | j | 105.00 | k | 103.00 | e | 96.00 | j | 97.00 | 84.00 | c | 80.00 | f | 68.00 | j | ----- | z | |
2015 | 67.00 | j | 79.00 | l | 77.00 | p | 85.00 | w | 89.00 | s | 104.00 | s | ----- | z | ----- | z | 94.00 | d | 87.00 | v | ----- | z | ----- | z | ----- | z |
2016 | ----- | z | ----- | z | ----- | z | 84.00 | v | 89.00 | h | 102.00 | g | 105.00 | i | 96.00 | j | 94.00 | e | 89.00 | r | ----- | z | ----- | z | ----- | z |
2017 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2018 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 103.00 | n | 102.00 | w | 100.00 | n | 94.00 | h | 89.00 | e | 76.00 | l | ----- | z | ----- | z |
2019 | 61.00 | v | ----- | z | 85.00 | c | 88.00 | m | 88.00 | d | 98.00 | a | 102.00 | c | 101.00 | 98.00 | c | 83.00 | 76.00 | f | 69.00 | c | ----- | z | ||
2020 | 64.00 | h | 70.00 | i | 81.00 | g | 90.00 | e | 95.00 | b | 101.00 | e | 106.00 | g | 102.00 | e | 99.00 | b | 91.00 | b | 81.00 | j | 70.00 | m | ----- | z |
2021 | 61.00 | l | 71.00 | k | 79.00 | l | 87.00 | i | 92.00 | f | 104.00 | q | 102.00 | p | 99.00 | j | 97.00 | d | 86.00 | g | 78.00 | h | 68.00 | i | ----- | z |
2022 | 64.00 | n | ----- | z | ----- | z | ----- | z | 97.00 | f | 103.00 | f | 99.00 | v | 100.00 | n | 95.00 | n | 84.00 | m | 75.00 | j | 70.00 | r | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 65.64 | 71.61 | 80.32 | 87.35 | 94.83 | 102.13 | 103.00 | 99.93 | 95.26 | 87.46 | 75.25 | 65.31 | 104.54 | |||||||||||||
S.D. | 5.23 | 4.69 | 4.06 | 3.82 | 3.91 | 4.17 | 3.81 | 3.76 | 3.46 | 3.59 | 3.45 | 4.96 | 3.99 | |||||||||||||
SKEW | 0.14 | -0.52 | -0.26 | 0.20 | 0.16 | 0.77 | 0.25 | -0.21 | -0.22 | 0.32 | -0.56 | 0.01 | 0.44 | |||||||||||||
MAX | 76.00 | 81.00 | 89.00 | 96.00 | 103.00 | 113.00 | 111.00 | 109.00 | 103.00 | 96.00 | 82.00 | 75.00 | 113.00 | |||||||||||||
MIN | 57.00 | 58.00 | 70.00 | 80.00 | 88.00 | 96.00 | 97.00 | 90.00 | 87.00 | 81.00 | 65.00 | 56.00 | 100.00 | |||||||||||||
YRS | 44 | 44 | 44 | 43 | 48 | 45 | 46 | 44 | 50 | 48 | 48 | 45 | 24 |