Lower Monumental Dam & Lake

June 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	2149	90	14	62.20	62.40	12.10	49.60	538.39	538.63	438.53	100.10
2	2156	90	14	56.10	56.40	12.20	43.40	538.29	538.32	438.47	99.85
3	2166	90	13	51.40	50.90	12.20	38.00	538.44	538.40	438.30	100.10
4	2175	91	14	50.10	49.50	12.30	36.60	538.60	538.48	438.30	100.18
5	2156	90	14	46.90	46.50	12.20	33.60	538.71	538.57	438.27	100.30
6	2158	90	14	47.30	47.30	12.10	34.50	538.74	538.67	438.17	100.50
7	2136	89	14	50.00	51.30	12.10	38.40	538.34	538.43	438.56	99.87
8	2144	89	16	49.30	48.90	12.10	36.00	538.50	538.48	438.32	100.16
9	2153	90	14	49.40	48.90	12.10	36.00	538.66	538.59	438.30	100.29
10	2151	90	14	47.70	48.60	12.10	35.70	538.37	538.65	438.37	100.28
11	2143	89	14	48.60	48.90	12.20	35.90	538.28	538.19	438.55	99.64
12	2152	90	14	44.40	44.70	12.20	31.70	538.20	538.31	438.29	100.02
13	2151	90	13	39.70	38.70	12.10	25.80	538.53	538.40	438.05	100.35
14	2169	90	13	35.40	35.60	12.20	22.60	538.46	538.30	438.06	100.24
15	2151	90	14	33.10	33.40	12.10	20.50	538.37	538.29	438.03	100.26
16	2153	90	14	36.30	36.10	12.10	23.30	538.42	538.43	438.03	100.40
17	2152	90	14	33.60	32.60	12.10	19.70	538.72	538.59	438.04	100.55
18				34.50	35.20	12.10	22.30	538.51	538.61	438.08	100.53
19				31.90	31.50	12.10	18.70	538.64	538.36	438.09	100.27
20				30.10	30.20	12.10	17.30	538.63	538.61	438.07	100.54
21				30.90	30.20	12.30	17.10	538.81	538.41	438.06	100.35
22				29.20	33.00	15.20	17.00	537.69	538.20	438.00	100.20
23				32.10	31.40	13.60	17.10	537.89	537.71	437.74	99.97
24				31.20	30.80	12.80	17.30	538.01	537.79	437.75	100.04
25
26
27
28
29
30

TOT	36617		236
AVG	2154	90	14	41.73	41.79	12.36	28.67	538.42	538.39	438.18	100.21

MAX	2175			62.20	62.40	15.20	49.60	538.81	538.67	438.56	100.55
MIN	2136			29.20	30.20	12.10	17.00	537.69	537.71	437.74	99.64