| YEAR(S) | JUL | AUG | SEP | OCT | NOV | DEC | JAN | FEB | MAR | APR | MAY | JUN | ANN | |||||||||||||
| 1970-71 | ----- | z | ----- | z | ----- | z | 1.70 | b | ----- | z | 20.00 | 0.00 | a | 13.50 | ----- | z | 3.80 | 0.00 | 0.00 | 39.00 | e | |||||
| 1971-72 | ----- | z | 0.00 | 5.00 | ----- | z | ----- | z | ----- | z | 17.00 | y | 0.00 | 6.00 | 2.00 | ----- | z | 0.00 | 13.00 | f | ||||||
| 1972-73 | 0.00 | 0.00 | 5.00 | 15.90 | ----- | z | 16.50 | 19.00 | 0.00 | ----- | z | 4.00 | 0.00 | 0.00 | 60.40 | b | ||||||||||
| 1973-74 | ----- | z | 0.00 | 0.00 | e | 7.00 | 7.50 | 10.00 | 1.50 | ----- | z | 3.50 | 0.60 | 0.00 | 0.00 | 30.10 | b | |||||||||
| 1974-75 | 0.00 | 0.00 | ----- | z | 3.80 | 13.10 | 7.10 | 11.00 | 2.40 | a | 4.40 | 7.50 | ----- | z | 0.00 | 49.30 | b | |||||||||
| 1975-76 | 0.00 | 0.00 | 0.00 | 3.50 | 6.60 | 7.90 | 8.50 | 16.90 | 18.60 | 0.20 | 0.00 | 0.00 | 62.20 | |||||||||||||
| 1976-77 | 0.00 | 0.00 | 0.00 | 25.40 | 21.00 | 5.20 | 6.50 | 6.50 | 10.90 | ----- | z | 1.00 | 0.00 | 76.50 | a | |||||||||||
| 1977-78 | 0.00 | 0.00 | 0.50 | 37.70 | 7.20 | 29.50 | 16.60 | 19.80 | 23.60 | 7.30 | 0.00 | 0.00 | 142.20 | |||||||||||||
| 1978-79 | 0.00 | 0.00 | 5.30 | 17.10 | 45.40 | 27.50 | 5.70 | 0.70 | 4.40 | 13.50 | 0.00 | 0.00 | 119.60 | |||||||||||||
| 1979-80 | 0.00 | 0.00 | 1.20 | 27.20 | 23.90 | 8.50 | 6.40 | 7.60 | a | 2.00 | 4.00 | 0.00 | 0.00 | 80.80 | ||||||||||||
| 1980-81 | 0.00 | 0.00 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | j | ||
| 1981-82 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
| 1982-83 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
| 1983-84 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
| 1984-85 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
| 1985-86 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
| 1986-87 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
| 1987-88 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
| 1988-89 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
| 1989-90 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
| 1990-91 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
| 1991-92 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
| 1992-93 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
| 1993-94 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
| 1994-95 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
| 1995-96 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
| 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 | 14.00 | 9.00 | c | 18.20 | 17.00 | 15.00 | 7.00 | 0.30 | 0.00 | ----- | z | 80.50 | d | |||||||
| 2000-01 | ----- | z | ----- | z | 2.00 | 12.00 | 8.00 | 5.00 | 4.00 | 3.00 | 7.00 | 8.00 | ----- | z | ----- | z | 49.00 | d | ||||||||
| 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 |
| 2016-17 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
| 2017-18 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
| Period of Record Statistics | ||||||||||||||||||||||||||
| MEAN | 0.00 | 0.00 | 2.11 | 15.03 | 15.74 | 14.13 | 8.75 | 7.76 | 8.74 | 4.65 | 0.11 | 0.00 | 101.20 | |||||||||||||
| S.D. | 0.00 | 0.00 | 2.34 | 11.34 | 12.80 | 8.78 | 6.41 | 7.33 | 7.05 | 4.10 | 0.33 | 0.00 | 36.32 | |||||||||||||
| SKEW | 0.00 | 0.00 | 0.49 | 0.63 | 1.52 | 0.62 | 0.37 | 0.41 | 1.21 | 0.78 | 2.47 | 0.00 | 0.06 | |||||||||||||
| MAX | 0.00 | 0.00 | 5.30 | 37.70 | 45.40 | 29.50 | 19.00 | 19.80 | 23.60 | 13.50 | 1.00 | 0.00 | 142.20 | |||||||||||||
| MIN | 0.00 | 0.00 | 0.00 | 1.70 | 6.60 | 5.00 | 0.00 | 0.00 | 2.00 | 0.20 | 0.00 | 0.00 | 62.20 | |||||||||||||
| YRS | 8 | 10 | 9 | 11 | 9 | 11 | 11 | 11 | 10 | 11 | 9 | 10 | 4 | |||||||||||||