YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1920 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1921 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1922 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1923 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1924 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1925 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1926 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | 29.00 | g | 38.00 | 42.00 | 57.00 | 60.00 | 49.00 | 36.00 | 25.00 | a | 20.00 | ----- | z | |||||||
1962 | -12.00 | 16.00 | 16.00 | 30.00 | 38.00 | 44.00 | 56.00 | 55.00 | 49.00 | 35.00 | 22.00 | 19.00 | -12.00 | |||||||||||||
1963 | 8.00 | 3.00 | 17.00 | 30.00 | 42.00 | 43.00 | 62.00 | 59.00 | 48.00 | 41.00 | 21.00 | 11.00 | 3.00 | |||||||||||||
1964 | 4.00 | 10.00 | 17.00 | 30.00 | 32.00 | 47.00 | 60.00 | 59.00 | 48.00 | 36.00 | 19.00 | 9.00 | 4.00 | |||||||||||||
1965 | 15.00 | 11.00 | 11.00 | 29.00 | 30.00 | 44.00 | 60.00 | 58.00 | 38.00 | 31.00 | 27.00 | 19.00 | 11.00 | |||||||||||||
1966 | 13.00 | 13.00 | 15.00 | 30.00 | 43.00 | 49.00 | 62.00 | 54.00 | 51.00 | 31.00 | 24.00 | 14.00 | 13.00 | |||||||||||||
1967 | 4.00 | 17.00 | 23.00 | 29.00 | 26.00 | 45.00 | 63.00 | 57.00 | 44.00 | 25.00 | 24.00 | 15.00 | 4.00 | |||||||||||||
1968 | 17.00 | 20.00 | 23.00 | 25.00 | 38.00 | 42.00 | 59.00 | 52.00 | 42.00 | 31.00 | 25.00 | 8.00 | 8.00 | |||||||||||||
1969 | 12.00 | 18.00 | 18.00 | 30.00 | 33.00 | 50.00 | 61.00 | 63.00 | 50.00 | 31.00 | 17.00 | 9.00 | 9.00 | |||||||||||||
1970 | 6.00 | 13.00 | 24.00 | 23.00 | 30.00 | 50.00 | 59.00 | 53.00 | 40.00 | 22.00 | 18.00 | 17.00 | 6.00 | |||||||||||||
1971 | 3.00 | 13.00 | 10.00 | 26.00 | 40.00 | 41.00 | 60.00 | 56.00 | 42.00 | 31.00 | 26.00 | 20.00 | 3.00 | |||||||||||||
1972 | 12.00 | 10.00 | 21.00 | 28.00 | 39.00 | 50.00 | 59.00 | 58.00 | 45.00 | 31.00 | 21.00 | 19.00 | 10.00 | |||||||||||||
1973 | 16.00 | 20.00 | 25.00 | 23.00 | 38.00 | 48.00 | 56.00 | 59.00 | 42.00 | 31.00 | 17.00 | 10.00 | 10.00 | |||||||||||||
1974 | 13.00 | 12.00 | 24.00 | 29.00 | 39.00 | 49.00 | 60.00 | 55.00 | 47.00 | 30.00 | 17.00 | 15.00 | 12.00 | |||||||||||||
1975 | 13.00 | 16.00 | 26.00 | 27.00 | 31.00 | 48.00 | 59.00 | 60.00 | 43.00 | 36.00 | 23.00 | 18.00 | 13.00 | |||||||||||||
1976 | 13.00 | 23.00 | 22.00 | 27.00 | 39.00 | 51.00 | 61.00 | 59.00 | 50.00 | 30.00 | 9.00 | 17.00 | 9.00 | |||||||||||||
1977 | 12.00 | 20.00 | 19.00 | 28.00 | 37.00 | 50.00 | 61.00 | 61.00 | 52.00 | 39.00 | 26.00 | 13.00 | 12.00 | |||||||||||||
1978 | 18.00 | 17.00 | 26.00 | 28.00 | 38.00 | 51.00 | 58.00 | 57.00 | 50.00 | 32.00 | 27.00 | 2.00 | 2.00 | |||||||||||||
1979 | 10.00 | 19.00 | 21.00 | 25.00 | 33.00 | 48.00 | 56.00 | 53.00 | 49.00 | 29.00 | 16.00 | 12.00 | 10.00 | |||||||||||||
1980 | 19.00 | 14.00 | 27.00 | 25.00 | 37.00 | 40.00 | 63.00 | 56.00 | 50.00 | 23.00 | 15.00 | 16.00 | 14.00 | |||||||||||||
1981 | 21.00 | 17.00 | 27.00 | 35.00 | 45.00 | 51.00 | 62.00 | 57.00 | 48.00 | 30.00 | ----- | z | ----- | z | ----- | z | ||||||||||
1982 | ----- | z | ----- | z | 21.00 | ----- | 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 | 54.00 | 50.00 | 35.00 | 19.00 | a | 16.00 | ----- | z | ||||
2001 | 14.00 | 17.00 | 24.00 | 27.00 | 37.00 | 50.00 | 59.00 | 56.00 | 46.00 | 38.00 | 17.00 | 13.00 | 13.00 | |||||||||||||
2002 | 14.00 | 19.00 | 12.00 | 32.00 | 38.00 | 55.00 | 57.00 | 58.00 | 50.00 | 34.00 | 24.00 | 17.00 | 12.00 | |||||||||||||
2003 | 23.00 | 20.00 | 27.00 | 32.00 | 37.00 | 52.00 | 62.00 | 61.00 | 53.00 | 29.00 | 21.00 | e | 6.00 | 6.00 | e | |||||||||||
2004 | 18.00 | 15.00 | 26.00 | 37.00 | 43.00 | 49.00 | 52.00 | 56.00 | 44.00 | 34.00 | 18.00 | 16.00 | 15.00 | |||||||||||||
2005 | 23.00 | 24.00 | 25.00 | 31.00 | 39.00 | 51.00 | a | 57.00 | 60.00 | 45.00 | 38.00 | 18.00 | 13.00 | 13.00 | a | |||||||||||
2006 | 13.00 | 19.00 | 25.00 | 34.00 | 44.00 | 60.00 | 65.00 | 60.00 | 45.00 | 32.00 | 12.00 | 12.00 | 12.00 | |||||||||||||
2007 | 12.00 | 19.00 | 18.00 | 30.00 | 42.00 | 48.00 | 63.00 | 63.00 | 50.00 | 30.00 | 27.00 | 11.00 | 11.00 | |||||||||||||
2008 | 12.00 | 16.00 | b | 20.00 | 29.00 | 41.00 | 45.00 | 61.00 | 57.00 | 49.00 | 31.00 | 22.00 | 12.00 | 12.00 | b | |||||||||||
2009 | 12.00 | 16.00 | 26.00 | 31.00 | 48.00 | a | 49.00 | 65.00 | 57.00 | 47.00 | 23.00 | 22.00 | 18.00 | 12.00 | a | |||||||||||
2010 | 16.00 | a | 20.00 | 24.00 | 31.00 | 31.00 | 50.00 | b | 63.00 | 57.00 | 46.00 | 39.00 | 9.00 | b | 15.00 | 9.00 | e | |||||||||
2011 | 10.00 | -1.00 | 23.00 | 25.00 | 39.00 | 50.00 | 63.00 | 63.00 | 51.00 | 34.00 | 27.00 | 8.00 | -1.00 | |||||||||||||
2012 | 18.00 | 24.00 | a | 21.00 | 30.00 | 39.00 | 49.00 | 60.00 | b | 59.00 | 43.00 | 33.00 | 25.00 | a | 14.00 | 14.00 | d | |||||||||
2013 | 4.00 | 16.00 | 20.00 | 32.00 | 36.00 | 53.00 | 61.00 | a | 58.00 | 42.00 | 31.00 | 23.00 | 13.00 | 4.00 | a | |||||||||||
2014 | 13.00 | 18.00 | 27.00 | a | 34.00 | 37.00 | 54.00 | 63.00 | 59.00 | 54.00 | 40.00 | 19.00 | 16.00 | 13.00 | a | |||||||||||
2015 | 18.00 | 24.00 | 26.00 | 28.00 | 38.00 | 54.00 | 62.00 | 61.00 | 55.00 | a | 40.00 | a | 26.00 | 14.00 | 14.00 | b | ||||||||||
2016 | 18.00 | 14.00 | 27.00 | 30.00 | 40.00 | 52.00 | a | 59.00 | 57.00 | 50.00 | a | 41.00 | 16.00 | 19.00 | 14.00 | b | ||||||||||
2017 | 18.00 | 26.00 | 31.00 | 32.00 | 38.00 | 51.00 | 57.00 | 57.00 | 47.00 | a | 36.00 | 26.00 | 13.00 | 13.00 | a | |||||||||||
2018 | 15.00 | 24.00 | 22.00 | 32.00 | 39.00 | 55.00 | 60.00 | 60.00 | 54.00 | 37.00 | 17.00 | 14.00 | 14.00 | |||||||||||||
2019 | 18.00 | 13.00 | 26.00 | 31.00 | 38.00 | 53.00 | a | 59.00 | 62.00 | 52.00 | 26.00 | 25.00 | 19.00 | 13.00 | a | |||||||||||
2020 | 16.00 | c | 20.00 | 29.00 | 34.00 | 43.00 | 46.00 | 59.00 | a | 62.00 | d | 43.00 | d | 25.00 | 20.00 | 13.00 | 13.00 | l | ||||||||
2021 | 13.00 | 16.00 | 25.00 | 37.00 | 43.00 | 56.00 | 62.00 | 59.00 | 53.00 | 36.00 | 29.00 | 21.00 | 13.00 | |||||||||||||
2022 | 17.00 | 9.00 | 20.00 | 32.00 | 41.00 | 55.00 | 66.00 | 61.00 | 53.00 | 29.00 | 22.00 | 17.00 | 9.00 | |||||||||||||
2023 | 16.00 | 16.00 | 26.00 | 23.00 | 42.00 | 49.00 | 59.00 | 61.00 | 53.00 | 27.00 | 24.00 | 19.00 | 16.00 | |||||||||||||
2024 | 20.00 | 24.00 | 32.00 | d | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 13.36 | 16.59 | 22.56 | 29.56 | 38.16 | 49.30 | 60.18 | 58.20 | 47.82 | 32.42 | 21.07 | 14.36 | 9.67 | |||||||||||||
S.D. | 6.22 | 5.42 | 4.92 | 3.45 | 4.39 | 4.26 | 2.76 | 2.77 | 4.15 | 4.91 | 4.81 | 4.13 | 5.46 | |||||||||||||
SKEW | -1.66 | -0.89 | -0.68 | 0.01 | -0.55 | -0.14 | -0.36 | -0.22 | -0.34 | -0.16 | -0.64 | -0.69 | -1.94 | |||||||||||||
MAX | 23.00 | 26.00 | 32.00 | 37.00 | 48.00 | 60.00 | 66.00 | 63.00 | 55.00 | 41.00 | 29.00 | 21.00 | 16.00 | |||||||||||||
MIN | -12.00 | -1.00 | 10.00 | 23.00 | 26.00 | 40.00 | 52.00 | 52.00 | 38.00 | 22.00 | 9.00 | 2.00 | -12.00 | |||||||||||||
YRS | 44 | 44 | 45 | 43 | 44 | 44 | 44 | 45 | 45 | 45 | 44 | 44 | 39 |