Lower Monumental Dam & Lake

May 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
1	2208	92	12	64.90	65.10	12.50	51.90	538.46	538.35	438.54	99.81
2	2142	89	12	63.90	65.30	12.10	52.40	538.06	538.38	438.61	99.77
3	2140	89	12	61.30	59.60	12.10	46.70	538.56	538.46	438.65	99.81
4				62.40	63.90	12.20	51.00	538.10	538.29	438.72	99.57
5				70.20	70.40	12.50	57.00	538.06	538.09	438.83	99.26
6				73.00	72.30	12.20	59.40	538.25	538.12	438.93	99.19
7				75.00	74.90	12.20	62.10	538.31	538.18	439.01	99.17
8				82.80	81.80	12.20	68.90	538.57	538.34	439.14	99.20
9				84.40	85.00	12.20	72.00	538.41	538.28	439.16	99.12
10				81.90	81.80	12.20	68.80	538.44	538.17	439.03	99.14
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TOT	6489		36
AVG	2163	90	12	71.98	72.01	12.24	59.02	538.32	538.27	438.86	99.40

MAX	2208			84.40	85.00	12.50	72.00	538.57	538.46	439.16	99.81
MIN	2140			61.30	59.60	12.10	46.70	538.06	538.09	438.54	99.12