Grand Coulee Dam

December 2025

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	52279	2178	201	84.40	89.20	89.20	0.00	1284.60	1284.59	959.96	324.63	0.00	0	1568.64
2	46094	1921	216	82.40	76.80	76.80	0.00	1284.80	1284.68	958.38	326.30	0.00	0	1568.63
3	56631	2360	218	91.70	95.10	95.10	0.00	1284.70	1284.73	960.39	324.34	0.19	120	1568.64
4	61363	2557	221	94.70	102.70	102.70	0.00	1284.50	1284.56	960.90	323.66	0.00	0	1568.64
5				85.90	117.20	117.20	0.00	1283.70	1283.94	962.22	321.72			1568.39
6				85.80	101.60	101.60	0.00	1283.20	1283.51	960.56	322.95			1568.61
7				90.10	96.40	96.40	0.00	1283.10	1283.22	960.25	322.97			1568.62
8				83.20	94.10	94.10	0.00	1282.80	1282.93	960.29	322.64			1568.64
9				93.60	69.70	69.70	0.00	1283.40	1283.19	957.79	325.40			1568.60
10				89.70	59.70	59.70	0.00	1284.20	1283.87	956.82	327.05			1568.63
11				82.80	62.90	62.90	0.00	1284.70	1284.52	957.26	327.26			1568.61
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TOT	216367		856
AVG	54092	2254	214	87.66	87.76	87.76	0.00	1283.97	1283.98	959.53	324.45	0.05	30	1568.60

MAX	61363			94.70	117.20	117.20	0.00	1284.80	1284.73	962.22	327.26	0.19	120	1568.64
MIN	46094			82.40	59.70	59.70	0.00	1282.80	1282.93	956.82	321.72	0.00	0	1568.39