Lower Monumental Dam & Lake

April 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	11467	478	17	73.10	73.80	64.90	8.10	537.96	538.60	439.54	99.06
2	10615	442	17	68.20	68.70	60.40	7.50	537.78	537.91	439.31	98.60
3	2200	92	16	70.00	69.10	12.60	55.90	538.03	537.70	438.82	98.88
4	2165	90	16	67.10	68.00	12.30	55.10	537.74	538.02	438.85	99.17
5	2123	88	16	62.70	63.40	12.20	50.50	537.56	537.61	438.78	98.83
6	2124	88	16	64.40	63.50	12.20	50.60	537.82	537.68	438.76	98.92
7	2145	89	15	61.90	59.70	12.20	46.80	538.47	538.09	438.68	99.41
8	2174	91	15	58.20	58.50	12.30	45.40	538.39	538.51	438.45	100.06
9	2149	90	16	60.30	60.50	12.20	47.60	538.33	538.47	438.65	99.82
10	2144	89	16	61.20	61.10	12.20	48.30	538.38	538.29	438.72	99.57
11	2161	90	15	59.70	59.50	12.30	46.50	538.41	538.32	438.71	99.61
12	2176	91	16	66.70	67.00	12.40	54.00	538.35	538.37	438.83	99.54
13	2166	90	16	72.90	72.50	12.30	59.60	538.44	538.40	439.00	99.40
14	2172	91	16	73.60	73.10	12.30	60.10	538.59	538.49	439.02	99.47
15	2166	90	16	72.30	73.10	12.30	60.00	538.37	538.55	438.98	99.57
16	2153	90	15	78.30	78.80	12.30	65.80	538.21	538.29	439.13	99.16
17	2165	90	15	75.20	74.50	12.30	61.40	538.41	538.32	438.85	99.47
18	2162	90	14	69.90	69.90	12.30	56.90	538.44	538.42	438.75	99.67
19	2182	91	14	65.10	65.40	12.40	52.30	538.33	538.37	438.71	99.66
20	2170	90	14	64.10	64.00	12.30	51.00	538.35	538.33	438.66	99.67
21	2172	91	13	66.20	66.60	12.30	53.50	538.22	538.30	438.67	99.63
22	2170	90	14	71.70	72.10	12.40	59.00	538.13	538.14	439.07	99.07
23	2140	89	13	88.40	87.90	12.20	74.70	538.28	538.37	439.29	99.08
24	2144	89	13	88.40	88.40	12.20	75.50	538.27	538.24	439.12	99.12
25	2146	89	13	83.80	84.70	12.30	71.70	538.01	538.10	439.21	98.89
26	2140	89	12	75.70	75.00	12.20	62.00	538.26	537.98	438.89	99.09
27	2148	89	13	74.80	75.30	12.20	62.30	538.11	538.16	438.86	99.30
28	2161	90	14	72.20	71.00	12.30	57.80	538.47	538.28	438.79	99.49
29	2167	90	13	71.00	70.10	12.30	57.10	538.72	538.58	438.69	99.89
30	2171	90	13	68.20	68.80	12.30	55.70	538.54	538.55	438.64	99.91

TOT	82537		439
AVG	2751	115	15	70.18	70.13	15.65	53.76	538.25	538.25	438.88	99.37

MAX	11467			88.40	88.40	64.90	75.50	538.72	538.60	439.54	100.06
MIN	2123			58.20	58.50	12.20	7.50	537.56	537.61	438.45	98.60