Grand Coulee Dam

January 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	Banks Lake Pump kcfs	Banks Lake Pump MWh	Banks Lake Elev
1	77360	3223	193	104.30	131.00	131.00	0.00	1284.80	1285.09	963.52	321.57	0.00	0	1568.53
2	73909	3080	191	108.70	123.80	123.80	0.00	1284.40	1284.56	962.39	322.17	0.00	0	1568.55
3	71588	2983	193	122.70	120.30	120.30	0.00	1284.50	1284.39	961.95	322.44	0.00	0	1568.57
4	61322	2555	197	124.40	102.10	102.10	0.00	1285.00	1284.86	960.09	324.77	0.00	0	1568.59
5	80042	3335	212	130.50	134.10	134.10	0.00	1284.90	1285.04	963.42	321.62	0.00	0	1568.56
6	86842	3618	214	125.40	147.30	147.30	0.00	1284.40	1284.60	965.39	319.21	0.00	0	1568.61
7	86188	3591	216	139.00	146.00	146.00	0.00	1284.20	1284.20	964.99	319.21	0.09	28	1568.52
8	81765	3407	214	123.80	139.60	139.60	0.00	1283.80	1283.98	964.33	319.65	0.06	41	1568.50
9	80551	3356	167	138.80	136.30	136.30	0.00	1283.90	1283.89	964.01	319.88	0.19	132	1568.48
10	80050	3335	187	142.10	133.80	133.80	0.00	1284.10	1283.97	963.49	320.48	0.00	0	1568.32
11	86577	3607	187	139.10	144.30	144.30	0.00	1283.90	1284.03	964.44	319.59	0.00	0	1568.27
12	81349	3390	177	126.00	137.80	137.80	0.00	1283.60	1283.78	964.19	319.59	0.53	352	1568.25
13				129.40	137.50	137.50	0.00	1283.40	1283.46	963.94	319.52			1568.21
14				127.90	147.20	147.20	0.00	1282.90	1283.18	965.20	317.98			1568.28
15				129.30	140.80	140.80	0.00	1282.60	1282.75	964.36	318.39			1568.35
16				120.40	147.10	147.10	0.00	1281.90	1282.17	965.10	317.07			1568.43
17				131.40	140.70	140.70	0.00	1281.60	1281.72	964.93	316.79			1568.42
18				131.30	146.90	146.90	0.00	1281.20	1281.45	965.17	316.28			1568.42
19				130.00	142.80	142.80	0.00	1280.90	1280.97	965.24	315.73			1568.40
20
21
22
23
24
25
26
27
28
29
30
31

TOT	947543		2348
AVG	78962	3290	196	127.61	136.81	136.81	0.00	1283.47	1283.58	964.01	319.58	0.07	46	1568.43

MAX	86842			142.10	147.30	147.30	0.00	1285.00	1285.09	965.39	324.77	0.53	352	1568.61
MIN	61322			104.30	102.10	102.10	0.00	1280.90	1280.97	960.09	315.73	0.00	0	1568.21