| YEAR(S) | JUL | AUG | SEP | OCT | NOV | DEC | JAN | FEB | MAR | APR | MAY | JUN | ANN | |||||||||||||
| 1954-55 | ----- | z | ----- | z | ----- | z | ----- | z | 1.70 | x | 13.80 | i | 16.00 | b | 16.50 | c | 24.10 | 3.80 | 0.50 | 0.00 | 60.90 | f | ||||
| 1955-56 | 0.00 | 0.00 | 0.00 | 8.00 | 12.20 | c | 20.60 | a | 18.10 | b | 30.20 | 31.90 | 8.50 | ----- | z | 0.00 | 129.50 | a | ||||||||
| 1956-57 | 0.00 | 0.00 | 0.00 | 0.00 | 23.30 | 28.00 | 31.50 | 12.00 | 22.50 | a | 9.50 | 5.50 | 0.00 | 132.30 | ||||||||||||
| 1957-58 | 0.00 | 0.00 | 0.00 | ----- | z | ----- | z | 35.00 | 78.30 | 64.60 | 34.50 | 16.50 | ----- | z | 0.00 | 228.90 | c | |||||||||
| 1958-59 | 0.00 | 0.00 | 0.00 | 7.00 | 11.50 | 23.50 | a | 24.50 | c | 19.00 | 35.50 | 3.60 | 1.20 | a | 0.00 | a | 125.80 | |||||||||
| 1959-60 | 0.00 | 0.00 | 1.00 | 5.00 | 23.00 | 37.50 | 30.30 | 38.70 | 26.30 | 10.00 | 0.00 | 0.00 | 171.80 | |||||||||||||
| 1960-61 | 0.00 | 0.00 | 0.00 | 16.00 | 10.70 | 33.00 | 32.70 | 7.50 | b | 45.80 | a | 44.50 | a | 3.60 | 0.00 | 193.80 | ||||||||||
| 1961-62 | 0.00 | 0.00 | 0.00 | 1.50 | a | 31.80 | 39.50 | 8.10 | 30.50 | 23.60 | 34.50 | 0.00 | 0.00 | 169.50 | ||||||||||||
| 1962-63 | 0.00 | 0.00 | 0.00 | 11.00 | 16.00 | 26.00 | b | 40.50 | 25.00 | 29.50 | 15.70 | a | 2.50 | 0.00 | 166.20 | |||||||||||
| 1963-64 | 0.00 | 0.00 | 0.00 | 0.10 | 24.00 | 28.00 | ----- | z | 18.80 | 17.00 | a | 9.00 | 0.00 | 0.00 | a | 96.90 | a | |||||||||
| 1964-65 | ----- | z | 0.00 | 0.00 | 7.50 | 7.00 | 23.40 | 31.50 | 28.00 | 14.80 | 15.00 | 0.00 | 4.00 | 131.20 | a | |||||||||||
| 1965-66 | 0.00 | 0.00 | a | 0.00 | 5.70 | 52.70 | 26.20 | 29.30 | 29.90 | 24.00 | 13.50 | 17.00 | 0.00 | 198.30 | ||||||||||||
| 1966-67 | 0.00 | 0.00 | 0.50 | 13.50 | 11.00 | 47.30 | 53.80 | 34.00 | 25.90 | 21.00 | 20.30 | 0.00 | 227.30 | |||||||||||||
| 1967-68 | 0.00 | 0.00 | 1.80 | 4.00 | 55.50 | 42.50 | 44.50 | 46.00 | 35.00 | 7.50 | 0.00 | 0.00 | 236.80 | |||||||||||||
| 1968-69 | 0.00 | 0.00 | 0.00 | 10.50 | 59.50 | 71.50 | 42.50 | a | 46.00 | 73.50 | 17.00 | 4.50 | 0.00 | 325.00 | ||||||||||||
| 1969-70 | 0.00 | 0.00 | 0.00 | 15.30 | 36.50 | 78.50 | 21.50 | b | 30.90 | 45.70 | 20.50 | 5.50 | 0.00 | 254.40 | ||||||||||||
| 1970-71 | 0.00 | 0.00 | 0.00 | 1.50 | 26.50 | a | 77.00 | a | 51.00 | 30.30 | a | 73.50 | 44.00 | 8.30 | 0.00 | 312.10 | ||||||||||
| 1971-72 | 0.00 | 0.00 | 0.00 | 0.80 | 53.50 | 45.50 | 35.00 | 53.80 | 53.50 | 21.90 | 0.50 | 1.50 | 266.00 | |||||||||||||
| 1972-73 | 0.00 | 0.00 | 0.00 | 5.80 | 36.40 | 55.80 | 47.50 | 29.00 | a | 16.00 | 39.00 | 4.00 | 0.00 | 233.50 | ||||||||||||
| 1973-74 | 0.00 | 0.00 | 0.00 | 1.00 | 29.00 | 37.00 | 40.00 | 36.00 | 29.50 | b | 20.00 | 2.00 | 0.00 | 194.50 | ||||||||||||
| 1974-75 | 0.00 | 0.00 | 0.00 | 5.90 | 37.00 | 38.80 | 49.00 | 40.00 | a | 57.40 | a | 50.00 | 0.00 | 0.00 | 278.10 | |||||||||||
| 1975-76 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 54.80 | ----- | z | 32.60 | a | 36.70 | a | 27.90 | 6.00 | 0.00 | 158.00 | f | ||||
| 1976-77 | 0.00 | 0.00 | 1.00 | 14.10 | 68.80 | 28.50 | 54.50 | 50.80 | a | 44.00 | 18.50 | 0.00 | 0.00 | 280.20 | ||||||||||||
| 1977-78 | 0.00 | 0.00 | 0.00 | 4.80 | 23.30 | c | 44.60 | a | 43.10 | a | 21.80 | b | 32.00 | a | 16.80 | 5.00 | 0.00 | 191.40 | ||||||||
| 1978-79 | 0.00 | 0.00 | 0.00 | 0.80 | b | 17.20 | 55.70 | a | 66.00 | b | 23.00 | 16.30 | 27.00 | 3.30 | 0.50 | 209.80 | ||||||||||
| 1979-80 | 0.00 | 0.00 | 0.00 | 18.30 | a | 12.30 | a | 24.30 | 27.80 | 25.50 | a | 34.00 | 9.00 | 0.00 | 0.00 | 151.20 | ||||||||||
| 1980-81 | 0.00 | 0.00 | 0.50 | 18.30 | 57.50 | 49.80 | 17.00 | b | 24.00 | a | 31.90 | a | 13.80 | 0.50 | 0.00 | 213.30 | ||||||||||
| 1981-82 | 0.00 | 0.00 | 0.00 | 10.80 | a | 48.50 | a | 47.30 | a | 10.90 | c | 28.40 | a | 34.00 | g | 30.00 | 0.00 | 0.00 | 175.90 | a | ||||||
| 1982-83 | 0.00 | 0.00 | 0.00 | 8.00 | 11.90 | c | 16.10 | 21.00 | a | 28.00 | 35.00 | a | 42.90 | 16.50 | 0.00 | 179.40 | ||||||||||
| 1983-84 | 0.00 | 0.00 | 0.00 | 7.90 | a | 31.50 | d | 51.00 | b | 30.00 | b | 40.70 | a | 32.50 | b | 8.00 | 5.50 | 0.00 | 207.10 | |||||||
| 1984-85 | 0.00 | 0.00 | 0.00 | 8.00 | 19.00 | a | 41.00 | 48.00 | b | 14.80 | c | 48.00 | 28.60 | 1.00 | a | 0.00 | 208.40 | |||||||||
| 1985-86 | 0.00 | 0.00 | 0.00 | 0.00 | 9.80 | e | 43.50 | g | 49.50 | 16.30 | d | 21.50 | a | 14.00 | 0.00 | 0.00 | 111.10 | a | ||||||||
| 1986-87 | 0.00 | 0.00 | a | 4.00 | 3.00 | a | 23.30 | d | 24.00 | 53.60 | d | 16.50 | f | 19.00 | a | 17.00 | a | 0.80 | 0.00 | 144.70 | a | |||||
| 1987-88 | 0.00 | 0.00 | 0.00 | 13.00 | c | 0.00 | g | 20.00 | k | 9.00 | x | 20.50 | j | 28.50 | 29.80 | b | 0.00 | 0.00 | 71.30 | d | ||||||
| 1988-89 | 0.00 | 0.00 | 0.00 | 15.00 | d | 29.00 | d | 41.00 | g | 34.50 | c | 13.00 | h | 14.00 | 30.00 | 0.00 | a | 0.00 | 122.50 | b | ||||||
| 1989-90 | 0.00 | 0.00 | 1.00 | 3.00 | ----- | z | 20.00 | j | 15.00 | k | 15.00 | a | 0.00 | h | 4.00 | d | 4.00 | 0.00 | 27.00 | d | ||||||
| 1990-91 | 0.00 | 0.00 | 0.00 | 3.60 | 50.00 | e | 29.00 | e | 41.00 | e | 10.00 | l | 14.50 | e | 4.00 | a | 0.00 | b | 0.00 | 142.10 | a | |||||
| 1991-92 | 0.00 | 0.00 | 2.30 | 0.00 | c | 12.50 | g | 23.00 | i | 22.00 | l | 37.00 | j | ----- | z | ----- | z | 4.20 | 0.00 | 6.50 | f | |||||
| 1992-93 | 0.00 | 0.00 | 0.30 | 10.00 | a | 20.70 | a | 34.70 | 43.40 | a | 64.60 | 41.90 | 17.00 | 0.00 | 0.00 | 232.60 | ||||||||||
| 1993-94 | 0.00 | 0.00 | 0.00 | 6.00 | 28.50 | a | 38.20 | a | 55.90 | 34.80 | 60.70 | 15.90 | 2.00 | 0.00 | 242.00 | |||||||||||
| 1994-95 | 0.00 | 0.00 | 0.00 | a | 3.00 | 34.50 | 24.20 | 50.80 | 45.70 | 28.70 | 9.70 | a | 0.00 | 0.00 | 196.60 | |||||||||||
| 1995-96 | 0.00 | 0.00 | 0.00 | 7.00 | 29.60 | 62.00 | a | 23.80 | 44.40 | c | 37.50 | 71.50 | a | 14.30 | 0.00 | 290.10 | ||||||||||
| 1996-97 | 0.00 | 0.00 | 0.00 | 0.00 | 57.00 | 41.90 | 62.80 | 33.40 | 34.80 | a | 22.00 | a | 24.00 | 0.00 | 275.90 | |||||||||||
| 1997-98 | 0.00 | 0.00 | 0.00 | b | 26.60 | 47.10 | 65.90 | 31.60 | 29.90 | b | 42.10 | b | 10.40 | 0.80 | 0.00 | 254.40 | ||||||||||
| 1998-99 | 0.00 | b | 0.00 | 0.30 | 5.40 | 32.30 | 18.20 | c | 47.00 | 33.40 | 45.70 | b | 2.00 | a | 0.00 | 0.00 | 184.30 | |||||||||
| 1999-00 | 0.00 | 0.00 | 0.00 | 26.90 | a | 44.50 | 20.30 | b | 54.40 | 69.30 | 41.00 | a | 43.50 | a | 0.00 | 0.00 | 299.90 | |||||||||
| 2000-01 | 0.00 | 0.00 | 0.00 | 21.00 | 37.30 | 60.00 | a | 19.00 | d | 61.00 | 82.60 | a | 1.70 | a | 7.20 | 0.00 | 289.80 | |||||||||
| 2001-02 | 0.00 | 0.00 | 0.00 | 7.80 | a | 27.50 | 34.10 | 48.70 | 43.80 | 26.90 | a | 21.30 | a | 26.80 | 0.00 | 236.90 | ||||||||||
| 2002-03 | 0.00 | 0.00 | 0.00 | 4.00 | b | 57.20 | 41.20 | 24.70 | a | 27.60 | 28.30 | 18.30 | b | 0.00 | 0.00 | 201.30 | ||||||||||
| 2003-04 | 0.00 | 0.00 | 0.00 | 6.90 | a | 22.00 | a | 64.00 | b | 33.60 | a | 36.30 | a | 32.70 | 13.00 | a | 10.50 | 0.00 | 219.00 | |||||||
| 2004-05 | 0.00 | 0.00 | 0.00 | 1.00 | a | 23.20 | 33.10 | a | 34.00 | 50.70 | 27.00 | a | 14.10 | 2.00 | 0.00 | 185.10 | ||||||||||
| 2005-06 | 0.00 | 0.00 | 0.00 | 31.80 | 24.50 | 37.00 | c | 28.80 | a | 41.60 | 52.80 | 13.50 | 6.50 | 0.00 | 236.50 | |||||||||||
| 2006-07 | 0.00 | 0.00 | 0.00 | a | 25.80 | a | 0.50 | 43.50 | 41.50 | 69.80 | a | 34.50 | a | 61.00 | 0.00 | 0.00 | 276.60 | |||||||||
| 2007-08 | 0.00 | 0.00 | 0.00 | 0.00 | 36.50 | 83.50 | 29.50 | 59.10 | 56.60 | 5.00 | 3.50 | 0.00 | 273.70 | |||||||||||||
| 2008-09 | 0.00 | 0.00 | 0.00 | 16.00 | 47.50 | 55.10 | 51.90 | 41.80 | 20.50 | a | 21.50 | 0.00 | 0.00 | 254.30 | ||||||||||||
| 2009-10 | 0.00 | 0.00 | 0.00 | 8.00 | 24.50 | 36.80 | b | 42.30 | 56.10 | 4.00 | a | 34.00 | 11.00 | 0.00 | 216.70 | |||||||||||
| 2010-11 | 0.00 | 0.00 | 0.00 | 34.10 | 8.20 | 46.10 | a | 66.70 | 45.70 | b | 34.80 | 13.80 | a | 3.30 | d | 0.00 | l | 252.70 | a | |||||||
| 2011-12 | 0.00 | g | 0.00 | p | 0.00 | 1.00 | 11.10 | a | 27.50 | 34.30 | 39.70 | a | 17.50 | 31.50 | 13.00 | 0.00 | 175.60 | b | ||||||||
| 2012-13 | 0.00 | 0.00 | 0.00 | g | 4.00 | 19.00 | 34.00 | 17.70 | 38.00 | 32.00 | 13.30 | 13.20 | a | 0.00 | 171.20 | a | ||||||||||
| 2013-14 | 0.00 | 0.00 | 0.00 | 11.30 | 36.50 | 24.30 | 23.40 | 43.30 | 49.70 | 7.40 | a | 0.00 | 0.00 | 195.90 | ||||||||||||
| 2014-15 | 0.00 | 0.00 | 0.00 | 1.20 | 32.20 | c | 35.00 | b | 33.00 | 41.60 | 26.70 | 19.40 | 0.00 | 0.00 | 189.10 | |||||||||||
| 2015-16 | 0.00 | 0.00 | 0.00 | 3.00 | 8.60 | 14.00 | a | 26.90 | a | 16.90 | 10.90 | 15.90 | a | 5.60 | 0.00 | 101.80 | ||||||||||
| 2016-17 | 0.00 | 0.00 | 0.00 | 3.20 | a | 18.10 | 51.70 | 27.40 | 43.30 | a | 70.20 | 15.60 | a | 1.80 | 0.00 | 231.30 | ||||||||||
| 2017-18 | 0.00 | 0.00 | 0.00 | 2.00 | 23.60 | 30.80 | i | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 25.60 | g | |||||
| 2018-19 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
| 2019-20 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
| 2020-21 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
| 2021-22 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
| 2022-23 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
| 2023-24 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
| Period of Record Statistics | ||||||||||||||||||||||||||
| MEAN | 0.00 | 0.00 | 0.21 | 8.45 | 29.51 | 40.47 | 37.51 | 36.20 | 34.79 | 20.30 | 4.39 | 0.10 | 221.96 | |||||||||||||
| S.D. | 0.00 | 0.00 | 0.65 | 8.20 | 15.99 | 16.24 | 14.82 | 14.67 | 16.28 | 14.33 | 6.27 | 0.54 | 49.87 | |||||||||||||
| SKEW | 0.00 | 0.00 | 4.16 | 1.35 | 0.49 | 0.73 | 0.35 | 0.39 | 0.88 | 1.37 | 1.86 | 6.46 | -0.09 | |||||||||||||
| MAX | 0.00 | 0.00 | 4.00 | 34.10 | 68.80 | 83.50 | 78.30 | 69.80 | 82.60 | 71.50 | 26.80 | 4.00 | 325.00 | |||||||||||||
| MIN | 0.00 | 0.00 | 0.00 | 0.00 | 0.50 | 14.00 | 8.10 | 7.50 | 4.00 | 1.70 | 0.00 | 0.00 | 101.80 | |||||||||||||
| YRS | 60 | 61 | 61 | 61 | 58 | 57 | 58 | 58 | 60 | 62 | 61 | 62 | 46 | |||||||||||||