Lower Monumental Dam & Lake

October 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	2556	107	14	16.30	16.60	14.40	1.40	538.72	538.82	438.55	100.27
2	2513	105	14	16.60	16.20	14.10	1.40	538.86	538.81	438.45	100.36
3	2503	104	14	16.40	16.20	14.10	1.40	538.90	538.84	438.54	100.30
4	2491	104	14	16.00	16.10	14.00	1.40	538.88	538.93	438.52	100.41
5	2552	106	14	16.00	16.50	14.40	1.40	538.74	538.93	438.68	100.25
6	3079	128	15	18.30	19.70	17.50	1.40	538.30	538.63	438.71	99.92
7	2350	98	15	16.10	18.10	13.30	3.90	538.18	538.16	438.32	99.84
8	2266	94	14	15.30	14.90	12.80	1.40	538.30	538.23	438.27	99.96
9	2294	96	14	14.90	15.10	12.90	1.30	538.27	538.30	438.34	99.96
10	2219	92	14	15.20	14.60	12.50	1.30	538.44	538.37	438.36	100.01
11	2217	92	13	14.60	14.50	12.50	1.30	538.42	538.48	438.32	100.16
12	2235	93	13	14.90	14.70	12.60	1.40	538.49	538.49	438.33	100.16
13	2714	113	16	16.70	17.40	15.30	1.40	538.26	538.48	438.63	99.85
14	2434	101	17	18.30	16.20	13.80	1.60	538.89	538.41	438.66	99.75
15	2403	100	17	15.10	15.70	13.50	1.40	538.74	538.81	438.50	100.31
16				15.50	16.10	14.10	1.40	538.53	538.83	438.53	100.30
17				14.60	14.50	12.40	1.40	538.57	538.56	438.68	99.88
18				14.30	14.50	12.40	1.40	538.51	538.52	438.65	99.87
19				14.30	14.50	12.40	1.40	538.45	538.53	438.63	99.90
20				17.50	16.20	14.10	1.40	538.77	538.59	438.63	99.96
21				13.90	14.80	12.60	1.40	538.55	538.58	438.79	99.79
22				14.30	14.40	12.40	1.30	538.52	538.56	438.73	99.83
23
24
25
26
27
28
29
30
31
1

TOT	36828		218
AVG	2455	102	15	15.69	15.80	13.55	1.50	538.56	538.58	438.54	100.05

MAX	3079			18.30	19.70	17.50	3.90	538.90	538.93	438.79	100.41
MIN	2217			13.90	14.40	12.40	1.30	538.18	538.16	438.27	99.75