| YEAR(S) | JUL | AUG | SEP | OCT | NOV | DEC | JAN | FEB | MAR | APR | MAY | JUN | ANN | |||||||||||||
| 1922-23 | ----- | z | ----- | z | 0.00 | 0.00 | 0.00 | 9.20 | ----- | z | 14.00 | 21.50 | 19.00 | 0.00 | 0.00 | 63.70 | c | |||||||||
| 1923-24 | 0.00 | 0.00 | 0.00 | 0.00 | 1.50 | 2.00 | 15.30 | y | 8.10 | 19.00 | 6.50 | 0.00 | 0.00 | 37.10 | a | |||||||||||
| 1924-25 | 0.00 | a | 0.00 | 0.00 | 0.00 | ----- | z | 9.00 | 7.00 | 10.10 | 0.80 | 0.30 | 0.00 | 0.00 | 27.20 | a | ||||||||||
| 1925-26 | 0.00 | 0.00 | 0.00 | 2.50 | 2.50 | 10.50 | 11.00 | 16.50 | a | 22.50 | y | 4.50 | 0.00 | 0.00 | 47.50 | a | ||||||||||
| 1926-27 | 0.00 | 0.00 | 0.00 | 0.00 | 12.00 | 10.50 | x | 6.00 | 7.50 | 4.00 | 0.00 | 0.00 | 0.00 | 29.50 | a | |||||||||||
| 1927-28 | 0.00 | 0.00 | 0.00 | 0.00 | 17.50 | 29.50 | 5.00 | 7.00 | 14.00 | 20.50 | 0.00 | 0.00 | 93.50 | |||||||||||||
| 1928-29 | 0.00 | 0.00 | 0.00 | 0.00 | 4.50 | 8.00 | 29.00 | 17.00 | q | 20.00 | 6.00 | 0.00 | 0.00 | 67.50 | a | |||||||||||
| 1929-30 | 0.00 | 0.00 | 0.00 | 2.00 | 1.80 | 20.00 | 14.00 | 26.00 | a | 4.00 | 0.00 | 0.00 | 0.00 | 67.80 | ||||||||||||
| 1930-31 | 0.00 | 0.00 | 0.00 | 0.00 | 1.00 | 2.50 | 7.00 | 10.00 | 10.00 | 0.00 | 0.00 | 0.00 | 30.50 | |||||||||||||
| 1931-32 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 4.50 | 20.00 | 12.00 | 10.00 | 5.00 | 0.00 | 0.00 | 51.50 | |||||||||||||
| 1932-33 | 0.00 | 0.00 | 0.00 | 1.00 | 5.50 | 5.00 | 6.00 | a | 26.50 | a | 12.00 | 3.00 | 0.00 | 0.00 | 59.00 | |||||||||||
| 1933-34 | 0.00 | 0.00 | 0.00 | 9.00 | 11.00 | 19.50 | 13.00 | 7.00 | w | 15.00 | 7.00 | 0.00 | 0.00 | 74.50 | a | |||||||||||
| 1934-35 | 0.00 | 0.00 | 0.00 | 1.00 | 5.00 | 26.00 | 23.00 | 9.20 | t | 5.00 | 2.00 | 0.00 | 0.00 | 62.00 | a | |||||||||||
| 1935-36 | ----- | z | 0.00 | 0.00 | 0.00 | 9.50 | 9.50 | 14.00 | 17.00 | 12.50 | 2.30 | y | 0.00 | 0.00 | 62.50 | b | ||||||||||
| 1936-37 | 0.00 | 0.00 | 0.00 | 0.00 | 5.50 | 14.00 | 25.00 | 25.00 | 2.00 | 4.50 | 0.00 | 0.00 | 76.00 | |||||||||||||
| 1937-38 | 0.00 | ----- | z | ----- | z | 0.00 | 3.00 | 10.00 | 25.00 | 16.00 | 4.50 | 0.00 | ----- | z | ----- | z | 58.50 | d | ||||||||
| 1938-39 | ----- | z | ----- | z | ----- | z | 4.00 | 6.50 | a | 28.00 | v | 16.30 | m | 22.00 | 24.20 | t | 2.50 | ----- | z | ----- | z | 35.00 | h | |||
| 1939-40 | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | 7.50 | 15.00 | 22.00 | 7.50 | 2.00 | 2.50 | ----- | z | 56.50 | e | |||||||
| 1940-41 | ----- | z | ----- | z | ----- | z | ----- | z | 7.50 | 13.50 | 11.50 | 5.00 | 10.00 | 0.00 | ----- | z | ----- | z | 47.50 | f | ||||||
| 1941-42 | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | 4.00 | 4.50 | 7.00 | 19.50 | 7.00 | 0.00 | ----- | z | 42.00 | e | |||||||
| 1942-43 | 0.00 | 0.00 | ----- | z | 2.00 | 14.00 | a | 15.50 | 14.00 | 5.50 | 16.00 | 3.00 | ----- | z | 0.00 | 70.00 | b | |||||||||
| 1943-44 | 0.00 | 0.00 | 0.00 | 0.00 | 2.50 | 2.50 | 7.50 | 4.00 | 16.00 | 1.00 | 0.00 | 0.00 | 33.50 | |||||||||||||
| 1944-45 | 0.00 | ----- | z | 0.00 | 0.00 | 8.50 | 9.00 | r | 12.00 | 25.00 | 5.00 | 8.00 | 0.00 | 0.00 | 58.50 | b | ||||||||||
| 1945-46 | 0.00 | 0.00 | 0.00 | 0.00 | 11.50 | 18.50 | 12.50 | q | 2.80 | s | 1.00 | 1.00 | 0.00 | 0.00 | 32.00 | b | ||||||||||
| 1946-47 | ----- | z | ----- | z | ----- | z | 0.00 | 7.00 | 16.50 | 4.20 | 7.10 | 1.20 | 2.00 | 0.00 | ----- | z | 38.00 | d | ||||||||
| 1947-48 | ----- | z | ----- | z | ----- | z | 0.00 | 7.10 | u | 7.60 | v | 10.50 | 4.00 | w | 3.20 | 0.20 | ----- | z | 0.00 | 13.90 | g | |||||
| 1948-49 | 0.00 | 0.00 | 0.00 | 0.00 | 14.10 | a | 2.90 | 15.80 | 6.50 | a | 1.00 | 0.30 | 0.00 | 0.00 | 40.60 | |||||||||||
| 1949-50 | 0.00 | 0.00 | 0.00 | 0.00 | 10.40 | 3.00 | 21.70 | 11.20 | 19.00 | 8.00 | 0.00 | 0.00 | 73.30 | |||||||||||||
| 1950-51 | 0.00 | 0.00 | 0.00 | 0.00 | 2.70 | 17.00 | 6.80 | 8.50 | 7.00 | a | 4.20 | 0.00 | 0.00 | 46.20 | ||||||||||||
| 1951-52 | 0.00 | 0.00 | 0.00 | 0.00 | 4.20 | 8.70 | 10.50 | a | 6.00 | 11.00 | 8.00 | 0.00 | 0.00 | 48.40 | ||||||||||||
| 1952-53 | 0.00 | 0.00 | 0.00 | 0.00 | a | 3.00 | 9.00 | 5.50 | 16.50 | 0.00 | a | 0.30 | 0.00 | 0.00 | 34.30 | |||||||||||
| 1953-54 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | c | ----- | z | 7.10 | a | 9.00 | 11.60 | b | 0.00 | 0.50 | a | 0.00 | 28.20 | a | |||||||
| 1954-55 | 0.00 | 0.00 | 0.00 | 0.00 | 1.00 | c | 5.90 | 10.00 | 1.50 | 22.00 | 2.00 | 0.00 | 0.00 | 42.40 | ||||||||||||
| 1955-56 | 0.00 | 0.00 | 0.00 | 0.00 | 8.20 | 13.00 | 5.00 | 2.00 | 10.00 | 0.00 | a | 0.00 | 0.00 | 38.20 | ||||||||||||
| 1956-57 | 0.00 | 0.00 | 0.00 | 0.00 | 13.00 | 5.80 | 3.20 | 8.50 | 2.70 | 10.00 | 0.00 | 0.00 | 43.20 | |||||||||||||
| 1957-58 | 0.00 | 0.00 | 0.00 | 0.00 | 14.30 | 6.30 | 9.00 | 1.80 | 7.90 | 15.00 | 0.00 | 0.00 | 54.30 | |||||||||||||
| 1958-59 | 0.00 | 0.00 | 0.00 | 0.00 | 2.30 | 9.00 | 6.80 | 5.50 | 15.40 | 0.00 | 0.00 | 0.00 | 39.00 | |||||||||||||
| 1959-60 | 0.00 | 0.00 | 0.00 | 0.50 | 10.70 | 25.50 | 7.10 | 8.20 | 3.00 | 4.50 | 1.00 | 0.00 | 60.50 | |||||||||||||
| 1960-61 | 0.00 | 0.00 | 0.00 | 0.00 | 1.30 | 4.20 | 1.30 | 17.40 | 16.90 | 0.00 | 0.00 | 0.00 | 41.10 | |||||||||||||
| 1961-62 | 0.00 | 0.00 | 0.00 | 0.00 | 11.50 | 25.70 | 16.60 | 28.80 | 8.60 | 0.20 | 0.00 | 0.00 | 91.40 | |||||||||||||
| 1962-63 | 0.00 | 0.00 | 0.00 | 0.50 | 4.50 | 10.00 | 5.00 | 7.50 | 8.90 | 0.00 | 0.00 | 0.00 | 36.40 | |||||||||||||
| 1963-64 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 8.30 | 7.90 | 4.10 | 8.90 | 0.60 | 0.00 | 0.00 | 29.80 | |||||||||||||
| 1964-65 | 0.00 | 0.00 | 0.00 | 0.00 | 3.80 | 15.80 | 7.20 | 13.30 | 29.20 | 5.20 | 0.00 | 0.00 | 74.50 | |||||||||||||
| 1965-66 | 0.00 | 0.00 | 0.00 | 0.00 | 13.70 | 6.40 | 12.40 | 0.80 | 19.90 | 6.30 | 0.00 | 0.00 | 59.50 | |||||||||||||
| 1966-67 | 0.00 | 0.00 | 0.00 | 0.00 | 6.00 | 11.60 | 24.90 | 11.90 | 6.00 | 6.50 | 4.80 | 0.00 | 71.70 | |||||||||||||
| 1967-68 | 0.00 | 0.00 | 0.00 | 0.00 | 4.80 | 11.60 | 12.70 | 5.40 | 2.00 | 0.00 | 0.00 | 0.00 | 36.50 | |||||||||||||
| 1968-69 | 0.00 | 0.00 | 0.00 | 0.00 | 6.60 | 33.20 | 28.10 | 1.90 | 4.40 | 0.00 | 0.00 | 0.00 | 74.20 | |||||||||||||
| 1969-70 | 0.00 | 0.00 | 0.00 | 3.50 | 1.90 | 15.80 | 11.40 | 8.60 | 4.90 | 0.00 | 0.00 | 0.00 | 46.10 | |||||||||||||
| 1970-71 | 0.00 | 0.00 | 0.00 | 0.00 | 11.40 | 19.50 | 35.00 | 21.80 | 6.20 | 0.20 | 0.00 | 0.00 | 94.10 | |||||||||||||
| 1971-72 | 0.00 | 0.00 | 0.00 | 0.00 | 5.50 | 17.70 | 17.80 | 14.70 | 29.20 | 11.00 | 0.00 | 0.00 | 95.90 | |||||||||||||
| 1972-73 | 0.00 | 0.00 | 0.00 | 0.50 | 1.70 | 16.50 | a | 6.80 | 6.10 | 0.00 | 0.00 | 0.00 | 0.00 | 31.60 | ||||||||||||
| 1973-74 | 0.00 | 0.00 | 0.00 | 0.00 | 2.50 | 20.60 | 3.70 | 12.80 | 4.90 | 4.50 | 0.00 | 0.00 | 49.00 | |||||||||||||
| 1974-75 | 0.00 | 0.00 | 0.00 | 0.00 | 3.40 | 10.00 | 18.10 | 17.10 | 16.50 | 0.00 | 0.00 | 0.00 | 65.10 | |||||||||||||
| 1975-76 | 0.00 | 0.00 | 0.00 | 0.00 | 7.70 | 8.20 | 28.90 | 8.00 | 23.50 | 1.00 | 0.00 | 0.00 | 77.30 | |||||||||||||
| 1976-77 | 0.00 | 0.00 | 0.00 | 2.00 | 10.20 | 11.70 | 9.40 | 1.80 | 14.90 | 15.00 | 0.00 | 0.00 | 65.00 | |||||||||||||
| 1977-78 | 0.00 | 0.00 | 0.00 | 0.00 | 5.90 | a | 19.30 | 7.80 | 6.10 | 7.20 | 4.00 | 0.00 | 0.00 | 50.30 | ||||||||||||
| 1978-79 | 0.00 | 0.00 | 0.00 | 0.00 | 5.40 | 19.40 | 23.40 | 12.90 | 13.60 | 5.00 | 5.30 | 0.00 | 85.00 | |||||||||||||
| 1979-80 | 0.00 | 0.00 | 0.00 | 2.00 | 7.30 | 5.30 | 15.60 | 2.50 | a | 7.40 | 1.70 | 0.00 | 0.00 | 41.80 | ||||||||||||
| 1980-81 | 0.00 | 0.00 | 0.00 | 0.00 | 3.00 | 18.10 | 7.30 | 9.80 | 1.70 | a | 0.00 | 1.50 | 0.00 | 41.40 | ||||||||||||
| 1981-82 | 0.00 | 0.00 | 0.00 | 1.00 | 2.00 | 21.60 | ----- | z | 3.00 | 12.70 | 4.60 | 0.00 | 0.00 | 44.90 | a | |||||||||||
| 1982-83 | 0.00 | 0.00 | 0.00 | 0.00 | 6.50 | 9.90 | 15.30 | 9.70 | 10.50 | 5.00 | 0.00 | 0.00 | 56.90 | |||||||||||||
| 1983-84 | 0.00 | 0.00 | 0.00 | 0.00 | 8.10 | 18.70 | 9.90 | 5.70 | 10.20 | 0.00 | 0.00 | 0.00 | 52.60 | |||||||||||||
| 1984-85 | 0.00 | 0.00 | 0.00 | 0.00 | 3.90 | 22.90 | 5.80 | 12.20 | 23.10 | 9.50 | 0.00 | 0.00 | 77.40 | |||||||||||||
| 1985-86 | 0.00 | 0.00 | 0.00 | 0.00 | 18.10 | 15.90 | 11.90 | 10.10 | 16.50 | 0.00 | 0.00 | 0.00 | 72.50 | |||||||||||||
| 1986-87 | 0.00 | 0.00 | 0.00 | 0.00 | 8.50 | 6.40 | 6.80 | 2.80 | 11.50 | 5.40 | 0.00 | 0.00 | 41.40 | |||||||||||||
| 1987-88 | 0.00 | 0.00 | 0.00 | 0.00 | 3.00 | 19.70 | 17.30 | 2.40 | 6.80 | 5.20 | 0.00 | 0.00 | 54.40 | |||||||||||||
| 1988-89 | 0.00 | 0.00 | 0.00 | 1.50 | 14.40 | 10.10 | 15.70 | 7.00 | 17.20 | 2.50 | 0.00 | 0.00 | 68.40 | |||||||||||||
| 1989-90 | 0.00 | 0.00 | 0.00 | 7.30 | 12.40 | 12.60 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 32.30 | f | ||||||
| 1990-91 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
| 1991-92 | ----- | z | ----- | z | ----- | z | 0.00 | 15.00 | h | 7.90 | c | ----- | z | 8.90 | 7.60 | 0.00 | f | 0.00 | 0.00 | 24.40 | f | |||||
| 1992-93 | 0.00 | 0.00 | 0.00 | 6.20 | 16.70 | 12.20 | b | 14.00 | 1.00 | 3.30 | 0.00 | m | 0.00 | 0.00 | 53.40 | a | ||||||||||
| 1993-94 | 0.00 | 0.00 | 0.00 | 0.00 | 9.70 | a | 6.10 | e | 19.20 | 8.00 | 11.90 | 2.10 | 0.00 | 0.00 | 57.00 | |||||||||||
| 1994-95 | 0.00 | 0.00 | 0.00 | 0.00 | 7.70 | i | 1.10 | 9.30 | 5.50 | 13.60 | 2.50 | k | 0.00 | 0.00 | 29.50 | b | ||||||||||
| 1995-96 | 0.00 | 0.00 | 0.00 | 1.60 | 2.60 | h | 21.30 | a | 22.70 | a | 6.60 | e | 9.20 | 15.20 | 0.80 | 0.00 | 77.40 | a | ||||||||
| 1996-97 | 0.00 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | k | |
| 1997-98 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
| 1998-99 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
| 1999-00 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
| 2000-01 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
| 2001-02 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
| 2002-03 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
| 2003-04 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
| 2004-05 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
| 2005-06 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
| 2006-07 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
| 2007-08 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
| 2008-09 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
| 2009-10 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
| 2010-11 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
| 2011-12 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
| 2012-13 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
| 2013-14 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
| 2014-15 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
| 2015-16 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
| Period of Record Statistics | ||||||||||||||||||||||||||
| MEAN | 0.00 | 0.00 | 0.00 | 0.69 | 6.52 | 12.63 | 12.76 | 10.07 | 10.47 | 3.94 | 0.24 | 0.00 | 56.82 | |||||||||||||
| S.D. | 0.00 | 0.00 | 0.00 | 1.70 | 4.83 | 7.22 | 7.47 | 6.93 | 7.06 | 4.76 | 0.93 | 0.00 | 18.59 | |||||||||||||
| SKEW | 0.00 | 0.00 | 0.00 | 3.25 | 0.56 | 0.58 | 0.90 | 0.98 | 0.60 | 1.61 | 4.45 | 0.00 | 0.48 | |||||||||||||
| MAX | 0.00 | 0.00 | 0.00 | 9.00 | 18.10 | 33.20 | 35.00 | 28.80 | 29.20 | 20.50 | 5.30 | 0.00 | 95.90 | |||||||||||||
| MIN | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 1.10 | 1.30 | 0.80 | 0.00 | 0.00 | 0.00 | 0.00 | 29.80 | |||||||||||||
| YRS | 65 | 63 | 64 | 70 | 68 | 68 | 66 | 67 | 70 | 68 | 67 | 66 | 47 | |||||||||||||