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Ranking of Water Years (1960-2015) at Lower Granite Dam Data Ranking NW River Forecast Center

SNAKE - LOWER GRANITE DAM   (LGDW1) Period Rankings - 1960 to 2015 APR-AUG Normal -- 21091 (KAF)
Rank	Year	Period Volume (KAF)	Percent of Normal	Exceedance Probability*
1	1974	36344.00	172	1.786 %
2	1997	36205.00	172	3.571 %
3	1971	35391.00	168	5.357 %
4	2011	35002.00	166	7.143 %
5	1984	34679.00	164	8.929 %
6	1982	32847.00	156	10.714 %
7	1965	31884.00	151	12.500 %
8	1972	31292.00	148	14.286 %
9	1975	30735.00	146	16.071 %
10	1976	30028.00	142	17.857 %
11	1996	29887.00	142	19.643 %
12	1999	27524.00	131	21.429 %
13	1983	27362.00	130	23.214 %
14	1964	27275.00	129	25.000 %
15	2006	26378.00	125	26.786 %
16	1998	25158.00	119	28.571 %
17	1969	25035.00	119	30.357 %
18	2009	24718.00	117	32.143 %
19	1986	24642.00	117	33.929 %
20	2008	24642.00	117	35.714 %
21	1970	24164.00	115	37.500 %
22	1978	23938.00	113	39.286 %
23	2012	23738.00	113	41.071 %
24	1993	23396.00	111	42.857 %
25	1995	23004.00	109	44.643 %
26	1967	22386.00	106	46.429 %
27	1962	21470.00	102	48.214 %
28	1980	21466.00	102	50.000 %
29	2014	20780.00	99	51.786 %
30	1985	20255.00	96	53.571 %
31	1963	20036.00	95	55.357 %
32	2002	19722.00	94	57.143 %
33	1989	19571.00	93	58.929 %
34	1981	19534.00	93	60.714 %
35	2010	19500.00	92	62.500 %
36	2000	18465.00	88	64.286 %
37	2003	18299.00	87	66.071 %
38	1979	18272.00	87	67.857 %
39	1961	17849.90	85	69.643 %
40	2004	16753.00	79	71.429 %
41	1990	16658.00	79	73.214 %
42	1968	16456.00	78	75.000 %
43	1991	16312.00	77	76.786 %
44	2005	14750.00	70	78.571 %
45	2013	14716.00	70	80.357 %
46	1966	14583.00	69	82.143 %
47	2007	13479.00	64	83.929 %
48	1988	13430.00	64	85.714 %
49	1973	12602.00	60	87.500 %
50	1994	12545.00	59	89.286 %
51	2015	11753.28	56	91.071 %
52	2001	11684.00	55	92.857 %
53	1987	11386.00	54	94.643 %
54	1992	9932.00	47	96.429 %
55	1977	9268.00	44	98.214 %

*Exceedance Probability: The probability that a specific seasonal volume will be exceeded.