| YEAR(S) | JUL | AUG | SEP | OCT | NOV | DEC | JAN | FEB | MAR | APR | MAY | JUN | ANN | |||||||||||||
| 1923-24 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 10.60 | a | 19.20 | 25.50 | a | 12.00 | a | 0.50 | 0.00 | 67.80 | f | |||
| 1924-25 | 0.00 | 0.00 | 2.70 | c | 12.00 | c | 23.50 | d | 22.70 | b | 22.20 | c | 20.30 | d | 12.50 | f | 5.00 | b | 0.00 | f | 0.00 | p | 108.40 | c | ||
| 1925-26 | 0.00 | 0.00 | 0.50 | a | 5.30 | 9.10 | b | 8.90 | b | 10.10 | e | 36.30 | d | 3.20 | b | 6.20 | f | 0.00 | 0.00 | b | 73.40 | a | ||||
| 1926-27 | 0.00 | 0.00 | 4.00 | b | 0.00 | 25.60 | 21.30 | g | 33.00 | d | 35.50 | i | 20.30 | f | 15.90 | j | 4.00 | c | 0.00 | 66.60 | d | |||||
| 1927-28 | 0.00 | 0.00 | a | 0.00 | 7.00 | a | 25.50 | 29.40 | c | 11.80 | g | 6.70 | l | 13.60 | 15.10 | d | 0.00 | 6.00 | a | 96.60 | b | |||||
| 1928-29 | 0.00 | b | 0.00 | 0.00 | b | 14.50 | a | 15.20 | a | 15.80 | 22.00 | k | 15.50 | c | 9.80 | d | 7.70 | c | 8.00 | d | 0.00 | 86.50 | a | |||
| 1929-30 | 0.00 | 0.00 | 0.00 | g | 0.50 | b | 6.30 | 7.50 | 26.70 | 16.40 | f | 9.00 | f | 0.00 | d | ----- | z | 0.00 | 41.00 | d | ||||||
| 1930-31 | 0.00 | 0.00 | 0.50 | 0.00 | 21.00 | 6.50 | e | 5.90 | c | 13.10 | c | 3.00 | j | 0.00 | 0.00 | o | ----- | z | 47.00 | c | ||||||
| 1931-32 | 0.00 | a | 0.00 | 0.00 | n | 1.00 | b | 19.00 | a | 34.00 | b | 41.00 | j | 15.50 | k | 29.00 | e | 14.00 | 0.00 | c | 0.00 | c | 97.00 | c | ||
| 1932-33 | 0.00 | d | 1.00 | 0.00 | 12.00 | a | 21.50 | 23.30 | a | 42.50 | 24.90 | a | 12.20 | a | 4.50 | 1.00 | b | 0.00 | b | 142.90 | ||||||
| 1933-34 | 0.00 | b | 0.00 | 2.00 | 0.80 | 8.00 | 53.50 | 20.50 | 7.00 | 3.00 | 3.00 | 1.00 | a | 0.00 | 98.80 | |||||||||||
| 1934-35 | 0.00 | 0.00 | 2.70 | a | 3.00 | 15.50 | 35.00 | 31.00 | 13.80 | 40.50 | 29.50 | 4.00 | 0.00 | 175.00 | ||||||||||||
| 1935-36 | 0.00 | 0.00 | 0.00 | 8.00 | 26.00 | b | 13.90 | a | 57.50 | 52.10 | b | 27.80 | f | 17.50 | 0.00 | 0.00 | 175.00 | a | ||||||||
| 1936-37 | 0.00 | 0.00 | 0.00 | a | 5.00 | 9.50 | b | 35.40 | c | 47.30 | g | 36.60 | g | 19.00 | f | 4.00 | k | 1.00 | b | 0.00 | a | 50.90 | d | |||
| 1937-38 | 0.00 | 0.00 | a | 3.00 | a | 1.00 | c | 23.00 | c | 29.80 | e | 26.60 | g | 53.00 | f | 48.70 | f | 1.00 | a | 1.50 | 0.00 | a | 59.30 | c | ||
| 1938-39 | 0.00 | 0.00 | 0.00 | b | 7.00 | 20.00 | 27.10 | 47.40 | b | 38.20 | d | 28.30 | b | 3.00 | 0.00 | g | 0.00 | a | 171.00 | a | ||||||
| 1939-40 | 0.00 | 0.00 | 0.00 | 0.00 | a | 0.00 | 19.90 | 33.90 | a | 35.10 | d | 25.40 | a | 7.70 | 0.00 | 3.00 | b | 125.00 | ||||||||
| 1940-41 | 0.00 | a | 0.00 | 0.00 | a | 7.00 | 24.70 | 20.50 | 29.30 | f | 11.10 | f | 3.50 | c | 15.00 | f | 0.00 | d | 0.00 | 55.70 | c | |||||
| 1941-42 | 0.00 | 0.00 | 0.00 | f | 6.00 | 13.00 | 33.00 | 33.10 | 18.80 | 8.20 | 9.00 | 24.00 | 0.00 | 145.10 | a | |||||||||||
| 1942-43 | 0.00 | 0.00 | 1.80 | 7.30 | 33.20 | 27.20 | 52.00 | 15.50 | 16.00 | 6.00 | 9.80 | 1.20 | a | 170.00 | ||||||||||||
| 1943-44 | 0.00 | 0.00 | 0.00 | 22.50 | 9.00 | f | 9.90 | 9.40 | 39.90 | a | 19.70 | 4.10 | 4.00 | 0.00 | 109.50 | a | ||||||||||
| 1944-45 | 0.00 | 0.00 | 6.50 | 0.00 | 32.70 | 17.40 | 17.80 | 21.30 | 27.90 | 12.90 | 0.00 | 0.00 | 136.50 | |||||||||||||
| 1945-46 | 0.00 | 0.00 | 7.80 | 1.40 | 30.00 | b | 34.60 | 26.30 | 30.00 | 29.00 | 3.00 | 0.00 | 0.00 | 162.10 | ||||||||||||
| 1946-47 | 0.00 | 0.00 | 0.00 | 21.30 | 23.70 | d | 20.90 | h | 10.40 | 15.60 | a | 22.00 | j | 14.60 | s | ----- | z | 0.00 | l | 71.00 | e | |||||
| 1947-48 | 0.00 | 0.00 | 1.00 | 0.50 | ----- | z | 12.20 | 13.40 | 20.00 | a | ----- | z | 5.00 | i | 1.00 | a | 0.00 | a | 48.10 | c | ||||||
| 1948-49 | 0.00 | a | 0.00 | 0.00 | 0.20 | 21.00 | 44.00 | 18.90 | 22.00 | a | 37.00 | 2.00 | a | 0.00 | 0.00 | 145.10 | ||||||||||
| 1949-50 | 0.00 | 0.00 | 0.00 | 17.40 | 18.30 | b | 48.10 | 70.40 | c | 32.00 | 34.80 | a | 10.30 | 2.00 | 4.50 | 237.80 | ||||||||||
| 1950-51 | 0.00 | 0.00 | a | 0.00 | b | 3.00 | 18.00 | 33.80 | 40.10 | 35.60 | 39.50 | 5.50 | 3.00 | a | 4.50 | 183.00 | ||||||||||
| 1951-52 | 0.00 | 0.00 | 0.00 | 14.20 | k | 30.30 | 46.40 | d | 67.30 | 31.80 | 37.60 | 3.00 | 1.00 | 0.00 | 217.40 | a | ||||||||||
| 1952-53 | 0.00 | 0.00 | 0.00 | 0.30 | 12.30 | 43.90 | b | 31.70 | 30.70 | a | 22.50 | 11.50 | 9.50 | 1.50 | 163.90 | |||||||||||
| 1953-54 | 0.00 | 0.00 | 0.00 | 0.00 | 11.40 | 37.80 | 62.00 | a | 17.80 | 0.00 | q | 10.00 | 2.00 | 8.50 | 149.50 | a | ||||||||||
| 1954-55 | 0.00 | 0.00 | 4.00 | 5.00 | 3.00 | 40.00 | 29.60 | 39.00 | 36.60 | 17.00 | g | 5.00 | 0.00 | 162.20 | a | |||||||||||
| 1955-56 | 0.00 | 0.00 | 1.00 | 10.00 | 35.50 | a | 54.30 | 47.10 | 39.80 | 18.90 | 14.50 | 2.00 | 0.00 | 223.10 | ||||||||||||
| 1956-57 | 0.00 | 0.00 | 0.00 | 33.50 | 13.80 | 40.60 | 57.00 | 33.50 | 48.00 | 6.00 | 0.00 | 0.00 | 232.40 | |||||||||||||
| 1957-58 | 0.00 | 0.00 | 4.00 | 6.00 | 20.00 | 41.70 | 21.60 | 24.50 | 28.00 | 11.50 | 1.00 | 0.00 | 158.30 | |||||||||||||
| 1958-59 | 0.00 | 0.00 | 1.00 | 2.00 | 23.00 | 23.50 | 37.00 | 42.00 | 18.50 | 2.00 | 17.00 | 0.00 | 166.00 | |||||||||||||
| 1959-60 | 0.00 | 0.00 | 2.00 | 8.00 | 13.00 | 14.80 | 35.10 | 18.00 | 17.80 | 21.00 | 3.00 | 0.00 | 132.70 | |||||||||||||
| 1960-61 | 0.00 | 4.00 | 0.00 | 15.00 | 45.50 | 27.50 | 5.30 | 54.00 | 22.90 | 5.00 | 4.50 | 0.00 | 183.70 | |||||||||||||
| 1961-62 | 0.00 | 0.00 | 3.00 | 33.00 | 29.00 | a | 30.80 | 33.00 | 51.60 | 28.50 | 7.50 | 0.00 | 2.00 | 218.40 | ||||||||||||
| 1962-63 | 0.00 | 0.00 | 1.00 | 2.50 | 25.50 | 7.00 | 28.00 | 20.00 | 15.50 | 33.50 | 0.00 | 0.50 | 133.50 | |||||||||||||
| 1963-64 | 0.00 | 0.00 | 0.00 | 3.00 | 25.00 | 21.90 | 39.00 | 13.00 | 36.00 | 21.50 | 6.00 | 0.00 | 165.40 | |||||||||||||
| 1964-65 | 0.00 | 0.00 | 0.00 | 4.00 | 33.00 | 61.40 | 67.80 | 10.60 | 10.30 | 15.50 | 6.00 | 0.00 | 208.60 | |||||||||||||
| 1965-66 | 0.00 | 0.00 | 3.00 | 2.00 | 23.50 | 37.50 | 19.50 | 10.30 | 20.00 | 6.50 | 8.00 | 0.00 | 130.30 | |||||||||||||
| 1966-67 | 0.00 | 0.00 | 2.00 | 8.00 | 24.50 | 33.00 | 54.00 | 9.30 | 42.00 | 10.00 | 2.00 | 0.00 | 184.80 | |||||||||||||
| 1967-68 | 0.00 | 0.00 | 0.00 | 2.00 | 17.80 | 29.00 | 46.50 | 6.50 | 13.00 | 12.00 | 4.00 | 1.00 | 131.80 | |||||||||||||
| 1968-69 | 0.00 | 0.00 | 6.00 | 5.00 | 18.50 | 33.50 | 51.50 | 22.50 | 5.00 | 7.80 | 0.00 | 0.00 | 149.80 | |||||||||||||
| 1969-70 | 0.00 | 0.00 | 0.00 | 3.50 | 13.00 | 23.00 | 27.50 | 11.00 | 29.50 | 26.00 | 5.00 | 3.00 | 141.50 | |||||||||||||
| 1970-71 | 0.00 | 0.00 | 4.00 | 9.50 | 24.40 | a | 53.50 | 30.00 | 28.00 | 18.50 | 8.50 | 2.00 | 0.00 | 178.40 | ||||||||||||
| 1971-72 | 0.00 | 0.00 | 6.00 | 19.50 | 22.50 | 42.00 | 22.00 | 17.50 | 16.00 | 6.50 | 0.00 | 0.00 | 152.00 | |||||||||||||
| 1972-73 | 0.00 | 0.00 | 0.00 | 6.00 | 13.80 | 21.80 | 19.30 | ----- | z | ----- | z | 7.60 | 1.00 | 3.00 | 72.50 | b | ||||||||||
| 1973-74 | 0.00 | 0.00 | 0.00 | 7.00 | ----- | z | 38.00 | 47.00 | 5.00 | s | 13.00 | m | 4.00 | 3.00 | 0.00 | 99.00 | c | |||||||||
| 1974-75 | 0.00 | 0.00 | 0.00 | 0.00 | b | 2.80 | d | ----- | z | ----- | z | 15.00 | h | ----- | z | ----- | z | ----- | z | 0.00 | 2.80 | f | ||||
| 1975-76 | 0.00 | 0.00 | 0.00 | 17.00 | 37.00 | 27.00 | 18.00 | f | 24.00 | e | 26.00 | ----- | z | 0.00 | 0.00 | a | 131.00 | b | ||||||||
| 1976-77 | 0.00 | 0.00 | 0.00 | 1.00 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | 0.00 | 1.00 | f | ||||||
| 1977-78 | 0.00 | 0.00 | 0.00 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | 0.00 | h | ||||
| 1978-79 | 0.00 | 0.00 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | x | 9.00 | ----- | z | 9.00 | i | |||
| 1979-80 | 0.00 | 0.00 | 0.00 | ----- | z | 15.30 | 8.00 | 33.80 | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | 57.10 | e | |||||||
| 1980-81 | 0.00 | 0.00 | 0.00 | ----- | z | ----- | z | ----- | z | 12.70 | 17.00 | a | 5.70 | ----- | z | 3.00 | ----- | z | 38.40 | e | ||||||
| 1981-82 | 0.00 | 0.00 | 0.00 | 5.50 | 17.50 | 33.80 | 44.80 | 14.60 | 38.90 | 29.20 | 0.00 | h | 0.00 | 184.30 | a | |||||||||||
| 1982-83 | 0.00 | 0.00 | ----- | z | 10.20 | 43.60 | 49.10 | 20.40 | 44.60 | 22.30 | a | 7.70 | 0.00 | d | 0.00 | 197.90 | a | |||||||||
| 1983-84 | 0.00 | 0.00 | 0.00 | b | 0.80 | 33.30 | 47.80 | 15.10 | 23.40 | 21.50 | 13.70 | 12.70 | 0.50 | 168.80 | ||||||||||||
| 1984-85 | 0.00 | 0.00 | 0.00 | c | 21.70 | 48.60 | 44.30 | 11.20 | 31.40 | 51.90 | 12.60 | 2.30 | 0.00 | 224.00 | ||||||||||||
| 1985-86 | 0.00 | 0.00 | 0.60 | 16.50 | 42.30 | m | 23.40 | 31.40 | 62.00 | 10.00 | 29.80 | 5.70 | 0.00 | 179.40 | a | |||||||||||
| 1986-87 | 0.00 | 0.00 | ----- | z | 0.60 | 21.90 | 3.80 | 27.00 | 13.10 | 19.30 | 0.70 | 1.50 | 0.00 | 87.90 | a | |||||||||||
| 1987-88 | 0.00 | 0.00 | 0.00 | 0.00 | 8.50 | 29.50 | 38.90 | 17.10 | 21.50 | 18.10 | 4.10 | 0.00 | 137.70 | |||||||||||||
| 1988-89 | 0.00 | a | 0.00 | 0.80 | 0.00 | 59.10 | 28.50 | m | 51.10 | 23.30 | 41.60 | 11.20 | h | 2.00 | a | 0.00 | 177.90 | b | ||||||||
| 1989-90 | 0.00 | 0.00 | 0.00 | 6.60 | f | 10.80 | e | 10.10 | c | 54.00 | 51.80 | 10.10 | 1.10 | 11.20 | 0.00 | 149.10 | a | |||||||||
| 1990-91 | 0.00 | 0.00 | 0.00 | 12.10 | 25.60 | c | 36.60 | 20.50 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 94.80 | e | ||||||
| 1991-92 | ----- | z | 0.00 | 0.00 | 30.00 | 34.10 | 36.00 | 13.50 | 31.30 | 3.10 | 4.10 | 0.00 | 0.00 | 152.10 | a | |||||||||||
| 1992-93 | 0.00 | 0.00 | 0.00 | 3.00 | 33.10 | 87.20 | a | 34.60 | l | 23.80 | k | 10.90 | 20.90 | 4.90 | 0.00 | 160.00 | b | |||||||||
| 1993-94 | 0.00 | 0.00 | 0.00 | 1.30 | 13.40 | 36.10 | g | 23.40 | 56.80 | 22.00 | 10.10 | 0.00 | 0.00 | 127.00 | a | |||||||||||
| 1994-95 | 0.00 | 0.00 | 0.00 | 8.40 | 61.50 | 93.90 | 54.70 | 22.60 | 43.10 | 26.10 | a | 3.40 | 0.00 | 313.70 | ||||||||||||
| 1995-96 | 0.00 | 0.00 | 0.00 | 2.00 | 29.90 | a | 27.40 | b | 40.40 | a | 21.60 | a | 30.60 | b | ----- | z | ----- | z | ----- | z | 151.90 | c | ||||
| 1996-97 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
| 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 | 11.00 | k | 5.80 | k | 3.40 | n | 0.20 | g | 0.00 | d | 0.00 | a | 0.00 | j |
| 2000-01 | 0.00 | c | 0.00 | b | 1.00 | a | 2.00 | e | 0.50 | k | 7.90 | i | 9.60 | d | 3.00 | k | 6.80 | e | 3.40 | f | 0.00 | a | 0.00 | c | 19.40 | d |
| 2001-02 | 0.00 | 0.00 | b | 0.00 | a | 0.00 | b | 6.70 | h | 13.50 | p | ----- | z | 1.00 | s | 0.00 | x | 0.50 | v | ----- | z | ----- | z | 0.00 | h | |
| 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 |
| Period of Record Statistics | ||||||||||||||||||||||||||
| MEAN | 0.00 | 0.07 | 1.06 | 7.07 | 22.77 | 31.81 | 32.49 | 26.53 | 22.79 | 10.68 | 3.23 | 0.58 | 171.09 | |||||||||||||
| S.D. | 0.00 | 0.48 | 1.84 | 8.11 | 12.16 | 17.22 | 16.91 | 13.58 | 12.56 | 8.40 | 4.45 | 1.56 | 43.08 | |||||||||||||
| SKEW | 0.00 | 7.79 | 1.92 | 1.59 | 0.92 | 1.10 | 0.38 | 0.78 | 0.27 | 1.03 | 2.38 | 3.24 | 1.23 | |||||||||||||
| MAX | 0.00 | 4.00 | 7.80 | 33.50 | 61.50 | 93.90 | 70.40 | 62.00 | 51.90 | 33.50 | 24.00 | 8.50 | 313.70 | |||||||||||||
| MIN | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 3.80 | 5.30 | 6.50 | 3.00 | 0.00 | 0.00 | 0.00 | 98.80 | |||||||||||||
| YRS | 73 | 74 | 68 | 68 | 64 | 63 | 62 | 57 | 56 | 56 | 64 | 68 | 32 | |||||||||||||