YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1931 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 99.00 | o | 95.00 | a | 77.00 | 71.00 | a | 49.00 | a | ----- | z | |
1932 | 42.00 | 50.00 | b | 58.00 | 72.00 | 80.00 | 92.00 | 95.00 | 97.00 | a | 93.00 | 85.00 | 65.00 | 51.00 | i | 97.00 | l | |||||||||
1933 | 46.00 | 42.00 | a | 62.00 | a | 70.00 | 85.00 | 95.00 | f | 104.00 | 100.00 | 90.00 | j | ----- | z | ----- | z | 61.00 | c | ----- | z | |||||
1934 | 51.00 | a | 60.00 | a | 70.00 | 81.00 | 90.00 | 90.00 | 107.00 | ----- | z | 95.00 | o | 85.00 | 70.00 | 45.00 | ----- | z | ||||||||
1935 | 51.00 | b | 45.00 | 63.00 | 66.00 | g | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 82.00 | a | 55.00 | 51.00 | ----- | z | ||||
1936 | 45.00 | 56.00 | c | 57.00 | c | 83.00 | m | ----- | z | ----- | z | ----- | z | ----- | z | 90.00 | m | ----- | z | 67.00 | 52.00 | ----- | z | |||
1937 | 34.00 | a | 50.00 | a | 61.00 | ----- | z | ----- | z | 90.00 | 98.00 | 95.00 | m | 95.00 | 78.00 | a | 68.00 | 58.00 | a | ----- | z | |||||
1938 | 54.00 | q | ----- | z | ----- | z | 60.00 | w | ----- | z | ----- | z | 96.00 | p | 95.00 | n | 93.00 | j | ----- | 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 | 52.00 | a | 76.00 | 79.00 | 89.00 | 95.00 | 93.00 | 90.00 | 83.00 | 64.00 | 48.00 | g | ----- | z | ||||||||
1953 | 56.00 | b | 60.00 | a | 65.00 | a | 75.00 | 77.00 | n | 81.00 | b | 97.00 | b | 94.00 | e | 93.00 | c | 82.00 | h | 66.00 | e | 47.00 | b | ----- | z | |
1954 | 51.00 | 63.00 | d | 62.00 | c | 75.00 | a | 92.00 | c | 96.00 | b | 97.00 | b | 96.00 | e | 93.00 | c | 80.00 | d | 68.00 | a | 51.00 | ----- | z | ||
1955 | 40.00 | 49.00 | a | 55.00 | a | 68.00 | 80.00 | c | 93.00 | 97.00 | d | 98.00 | b | 99.00 | b | 77.00 | i | 64.00 | 56.00 | d | ----- | z | ||||
1956 | 49.00 | d | 48.00 | a | 67.00 | c | 76.00 | c | 84.00 | b | 92.00 | b | 101.00 | e | 94.00 | e | 90.00 | b | 80.00 | d | 65.00 | e | 57.00 | d | ----- | z |
1957 | 47.00 | 50.00 | 58.00 | 72.00 | b | 80.00 | c | 91.00 | f | 96.00 | e | 94.00 | g | 93.00 | e | 74.00 | c | 56.00 | c | 54.00 | b | ----- | z | |||
1958 | 46.00 | e | 63.00 | c | 55.00 | b | 68.00 | b | 87.00 | a | 89.00 | d | 98.00 | h | 98.00 | d | 91.00 | c | 85.00 | c | 64.00 | c | 56.00 | c | ----- | z |
1959 | 56.00 | c | 56.00 | 62.00 | 74.00 | b | 86.00 | c | 95.00 | d | 99.00 | a | 94.00 | d | 91.00 | e | 78.00 | c | 63.00 | c | 59.00 | b | ----- | z | ||
1960 | 49.00 | b | 51.00 | b | 72.00 | e | 78.00 | d | 91.00 | g | 92.00 | f | 104.00 | e | 97.00 | d | 89.00 | c | 80.00 | e | 59.00 | a | 52.00 | c | ----- | z |
1961 | 52.00 | 56.00 | d | 66.00 | c | 69.00 | e | 85.00 | g | 99.00 | a | 96.00 | b | 102.00 | b | 84.00 | c | 87.00 | d | 61.00 | g | 48.00 | f | ----- | z | |
1962 | 53.00 | b | 48.00 | a | 62.00 | b | 79.00 | c | 77.00 | g | 94.00 | b | 96.00 | c | 95.00 | f | 88.00 | h | 84.00 | d | 68.00 | e | 60.00 | d | ----- | z |
1963 | 49.00 | c | 61.00 | d | 62.00 | f | 71.00 | l | 81.00 | g | 85.00 | e | 91.00 | 96.00 | b | 92.00 | c | 85.00 | c | 62.00 | 53.00 | a | ----- | z | ||
1964 | 51.00 | a | 46.00 | a | 65.00 | c | 71.00 | 84.00 | 89.00 | 95.00 | 97.00 | c | 83.00 | c | 86.00 | 63.00 | a | 57.00 | 97.00 | l | ||||||
1965 | 46.00 | 68.00 | a | 66.00 | ----- | z | 79.00 | a | 87.00 | 94.00 | a | 95.00 | b | 85.00 | 87.00 | 73.00 | 58.00 | a | ----- | z | ||||||
1966 | 52.00 | a | 47.00 | b | 75.00 | a | 80.00 | 92.00 | b | 94.00 | a | 96.00 | c | 101.00 | b | 93.00 | c | 77.00 | b | 63.00 | b | 50.00 | a | 101.00 | t | |
1967 | 50.00 | e | 58.00 | a | 60.00 | b | 56.00 | c | 86.00 | a | 89.00 | a | 101.00 | b | 99.00 | c | 94.00 | d | 76.00 | b | 67.00 | 54.00 | 101.00 | x | ||
1968 | 55.00 | h | 64.00 | a | 69.00 | 78.00 | 82.00 | c | 97.00 | c | 99.00 | c | 96.00 | 90.00 | b | 80.00 | d | 54.00 | f | 49.00 | a | ----- | z | |||
1969 | 51.00 | b | 47.00 | 69.00 | b | 78.00 | a | 82.00 | b | 93.00 | a | 96.00 | a | 100.00 | a | 92.00 | a | 70.00 | 66.00 | a | 55.00 | a | 100.00 | m | ||
1970 | 53.00 | a | 57.00 | 58.00 | 69.00 | a | 82.00 | 93.00 | 97.00 | 96.00 | b | 88.00 | b | 83.00 | a | 60.00 | 50.00 | 97.00 | g | |||||||
1971 | 59.00 | 61.00 | a | 65.00 | a | 68.00 | 78.00 | 92.00 | 95.00 | 98.00 | e | 87.00 | e | 80.00 | a | 61.00 | b | 44.00 | 98.00 | o | ||||||
1972 | 44.00 | 56.00 | 73.00 | a | 70.00 | 86.00 | b | 88.00 | 98.00 | 98.00 | 86.00 | a | 75.00 | c | 56.00 | b | 56.00 | b | 98.00 | k | ||||||
1973 | 56.00 | a | 57.00 | 59.00 | a | 71.00 | a | 83.00 | 93.00 | 98.00 | a | 94.00 | b | 92.00 | a | 79.00 | 59.00 | a | 50.00 | 98.00 | h | |||||
1974 | 51.00 | 50.00 | 60.00 | 72.00 | 75.00 | m | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 59.00 | ----- | z | ----- | z | |||||
1975 | ----- | z | ----- | z | ----- | z | ----- | z | 81.00 | g | 84.00 | d | 98.00 | 94.00 | h | 85.00 | a | 81.00 | 76.00 | 56.00 | ----- | z | ||||
1976 | ----- | z | ----- | z | 57.00 | 67.00 | 87.00 | a | 95.00 | a | 95.00 | f | 92.00 | a | 94.00 | b | 81.00 | 68.00 | i | 55.00 | ----- | z | ||||
1977 | 46.00 | b | 66.00 | a | 65.00 | b | 84.00 | a | 89.00 | d | 97.00 | b | 97.00 | d | 100.00 | a | 88.00 | c | 79.00 | e | 62.00 | c | 55.00 | b | ----- | z |
1978 | 48.00 | a | 53.00 | d | 75.00 | b | 66.00 | b | 78.00 | f | 84.00 | r | 99.00 | f | 96.00 | d | 90.00 | a | 80.00 | b | 64.00 | a | 51.00 | a | ----- | z |
1979 | 43.00 | 48.00 | a | 62.00 | a | 69.00 | b | 83.00 | g | 95.00 | g | 99.00 | 97.00 | a | 94.00 | e | 87.00 | b | 60.00 | 61.00 | d | ----- | z | |||
1980 | 50.00 | e | 62.00 | b | ----- | z | 77.00 | c | 85.00 | e | 87.00 | d | 102.00 | a | 93.00 | a | 92.00 | 84.00 | b | 77.00 | a | 60.00 | a | ----- | z | |
1981 | 56.00 | a | 57.00 | 63.00 | a | 80.00 | b | 79.00 | c | 94.00 | 99.00 | b | 98.00 | 97.00 | d | 77.00 | 67.00 | d | 59.00 | j | ----- | z | ||||
1982 | 48.00 | b | 57.00 | 56.00 | a | 69.00 | b | 75.00 | v | 89.00 | 94.00 | 93.00 | a | 89.00 | l | 72.00 | a | 55.00 | b | 48.00 | d | ----- | z | |||
1983 | 54.00 | e | 58.00 | g | 62.00 | f | 65.00 | e | 90.00 | a | 85.00 | d | 97.00 | c | 101.00 | c | 85.00 | a | 78.00 | e | 64.00 | 47.00 | b | ----- | z | |
1984 | 47.00 | b | 47.00 | a | 60.00 | d | 75.00 | b | 91.00 | g | 94.00 | c | 97.00 | e | 96.00 | e | 90.00 | l | 70.00 | j | ----- | z | 57.00 | e | ----- | z |
1985 | 45.00 | d | 50.00 | a | 57.00 | b | 72.00 | r | 81.00 | c | 95.00 | c | 98.00 | d | 95.00 | f | 78.00 | f | 75.00 | f | 68.00 | b | 48.00 | e | ----- | z |
1986 | 53.00 | d | 68.00 | c | 72.00 | c | 78.00 | d | 89.00 | a | 93.00 | d | 92.00 | k | 99.00 | g | 89.00 | h | 74.00 | j | ----- | z | ----- | z | ----- | z |
1987 | 50.00 | a | 57.00 | a | 62.00 | b | 86.00 | k | 86.00 | e | 90.00 | w | 95.00 | f | ----- | z | ----- | z | 90.00 | b | 64.00 | c | 54.00 | k | ----- | z |
1988 | 48.00 | b | 61.00 | b | 70.00 | b | 79.00 | d | 88.00 | b | 99.00 | h | 100.00 | j | 98.00 | a | 95.00 | c | 85.00 | d | 72.00 | h | 47.00 | h | ----- | z |
1989 | 47.00 | c | 51.00 | b | 61.00 | d | 78.00 | b | 82.00 | f | 92.00 | d | 102.00 | d | 92.00 | h | 86.00 | j | 79.00 | g | 66.00 | k | 51.00 | l | ----- | z |
1990 | 56.00 | a | 55.00 | 68.00 | c | 79.00 | f | 81.00 | b | 98.00 | i | ----- | z | 102.00 | h | 92.00 | g | 81.00 | i | 73.00 | h | 58.00 | ----- | z | ||
1991 | 47.00 | c | 61.00 | c | 66.00 | 66.00 | e | 73.00 | g | 84.00 | b | 97.00 | b | 96.00 | c | 92.00 | g | 84.00 | b | 60.00 | i | 53.00 | c | ----- | z | |
1992 | 55.00 | d | 65.00 | b | 68.00 | g | 84.00 | 87.00 | d | 95.00 | d | 100.00 | d | 100.00 | e | ----- | z | 88.00 | c | 50.00 | f | 43.00 | g | ----- | z | |
1993 | 42.00 | d | 45.00 | d | 66.00 | d | 63.00 | b | 83.00 | e | 92.00 | a | 93.00 | d | 93.00 | b | 92.00 | i | 80.00 | e | 58.00 | i | 58.00 | ----- | z | |
1994 | 52.00 | b | 53.00 | e | 71.00 | 82.00 | a | 89.00 | h | 96.00 | c | 100.00 | e | 98.00 | f | 90.00 | i | 76.00 | e | 57.00 | c | 50.00 | e | ----- | z | |
1995 | 54.00 | d | 66.00 | n | 63.00 | a | 67.00 | d | 80.00 | b | 89.00 | 96.00 | c | 94.00 | f | 93.00 | i | 79.00 | j | 67.00 | h | 55.00 | g | ----- | z | |
1996 | 52.00 | d | 59.00 | a | 66.00 | e | 78.00 | c | 82.00 | c | 93.00 | c | 98.00 | b | 100.00 | e | 94.00 | d | 88.00 | e | 64.00 | n | 50.00 | f | ----- | z |
1997 | 52.00 | c | 57.00 | b | 74.00 | d | 72.00 | c | 83.00 | a | 87.00 | g | 98.00 | d | 96.00 | d | 92.00 | a | 79.00 | d | 70.00 | g | 55.00 | d | ----- | z |
1998 | 56.00 | a | 50.00 | a | 64.00 | c | 77.00 | b | 73.00 | c | 87.00 | a | 102.00 | e | 100.00 | d | 97.00 | g | 76.00 | j | 63.00 | d | 50.00 | q | ----- | z |
1999 | 53.00 | r | 57.00 | d | 67.00 | b | 75.00 | 85.00 | e | 93.00 | b | 99.00 | c | 97.00 | a | 87.00 | d | 82.00 | c | 75.00 | h | 53.00 | i | ----- | z | |
2000 | 47.00 | a | 56.00 | d | 63.00 | c | 81.00 | b | 83.00 | 92.00 | a | 102.00 | e | 102.00 | b | 97.00 | i | 78.00 | b | 59.00 | f | 48.00 | j | ----- | z | |
2001 | ----- | z | 57.00 | c | 67.00 | b | 76.00 | k | 91.00 | m | 90.00 | l | 102.00 | g | 99.00 | c | 92.00 | g | 86.00 | e | 72.00 | j | 47.00 | i | ----- | z |
2002 | 50.00 | f | 57.00 | b | 66.00 | c | 72.00 | h | 85.00 | f | 102.00 | e | 105.00 | d | 95.00 | e | 92.00 | d | 75.00 | j | 65.00 | h | 52.00 | m | ----- | z |
2003 | 58.00 | f | 54.00 | e | 68.00 | d | 67.00 | h | 95.00 | d | 97.00 | c | 105.00 | 99.00 | i | 93.00 | k | 85.00 | l | ----- | z | ----- | z | ----- | z | |
2004 | ----- | z | 50.00 | o | 72.00 | n | 76.00 | d | 85.00 | m | 92.00 | m | 98.00 | f | 96.00 | h | 91.00 | p | ----- | 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 | 74.00 | n | 67.00 | b | 54.00 | d | ----- | z |
2020 | 54.00 | e | 60.00 | a | 66.00 | f | 68.00 | l | 98.00 | d | 96.00 | f | ----- | z | ----- | z | ----- | z | 69.00 | y | ----- | z | ----- | z | ----- | z |
2021 | ----- | z | 50.00 | q | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 49.65 | 55.22 | 64.06 | 73.49 | 84.53 | 91.67 | 98.30 | 97.02 | 90.89 | 81.13 | 64.15 | 53.57 | 0.0 | |||||||||||||
S.D. | 4.82 | 6.32 | 5.46 | 5.95 | 4.94 | 4.29 | 3.35 | 2.66 | 3.78 | 4.51 | 5.20 | 4.42 | 0.0 | |||||||||||||
SKEW | -0.66 | 0.02 | 0.08 | -0.43 | 0.47 | -0.25 | 0.56 | 0.04 | -0.30 | -0.21 | 0.32 | -0.23 | 0.00 | |||||||||||||
MAX | 59.00 | 68.00 | 75.00 | 84.00 | 98.00 | 102.00 | 107.00 | 102.00 | 99.00 | 90.00 | 77.00 | 61.00 | -9999 | |||||||||||||
MIN | 34.00 | 42.00 | 52.00 | 56.00 | 73.00 | 81.00 | 91.00 | 92.00 | 83.00 | 70.00 | 55.00 | 44.00 | 9999 | |||||||||||||
YRS | 51 | 54 | 53 | 47 | 40 | 45 | 47 | 42 | 37 | 45 | 40 | 42 | 0 |