Lower Granite Dam & Lake

March 2026

Day of Month	Total Generation MWh	Average Generation MW	Station Use MWh	Inflow kcfs	Total Outflow kcfs	Generation Flow kcfs	Spill kcfs	Midnight Reservoir Elevation	Average Forebay Elevation	Average Tailwater Elevation	Average Head feet	Midnight Lewiston Gage ft
1	5559	232	48	33.50	32.80	31.10	1.60	736.61	736.55	636.79	99.76	736.89
2	5852	244	49	32.70	32.90	32.80	0.00	736.54	736.68	636.81	99.87	736.61
3	5515	230	49	32.10	32.60	31.00	1.50	736.38	736.37	636.91	99.46	736.62
4	5871	245	48	32.80	33.10	33.00	0.00	736.27	736.36	636.86	99.50	736.42
5	6962	290	48	40.10	41.00	39.40	1.40	736.05	736.02	637.18	98.84	736.22
6	6706	279	47	39.90	37.90	37.80	0.00	736.62	736.44	637.19	99.25	736.76
7	6563	273	46	36.80	36.90	36.80	0.00	736.56	736.61	637.14	99.47	736.80
8								736.50				736.71
9								735.48				735.54
10								736.11				736.05
11								736.27				736.34
12								735.55				735.84
13								735.03				735.47
14								736.21				736.70
15								734.62				735.19
16								736.43				736.67
17								736.03				736.42
18								735.85				736.12
19								735.21				735.63
20								735.63				736.02
21								736.65				737.08
22								735.75				736.17
23								736.24				736.60
24								735.88				736.32
25								736.19				736.65
26								736.72				737.24
27								736.23				736.79
28								736.50				736.73
29								736.86				737.28
30								735.71				735.94
31								734.98				735.44

TOT	43028		336
AVG	6147	256	48	35.41	35.31	34.56	0.64	736.05	736.43	636.98	99.45	736.36

MAX	6962			40.10	41.00	39.40	1.60	736.86	736.68	637.19	99.87	737.28
MIN	5515			32.10	32.60	31.00	0.00	734.62	736.02	636.79	98.84	735.19