Chief Joseph Dam & Rufus Woods Lake

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
1	29977	1249	34	90.90	93.20	93.20	0.00	953.00	953.40	781.50	171.90
2	25313	1055	34	77.60	78.40	78.40	0.00	952.80	952.60	780.30	172.30
3	29823	1243	36	95.40	92.70	92.70	0.00	953.50	953.30	781.80	171.50
4	33794	1408	36	103.80	106.50	106.50	0.00	952.80	952.90	783.80	169.10
5	37823	1576	34	118.70	119.90	119.90	0.00	952.50	952.80	783.80	169.00
6	31449	1310	35	101.60	99.30	99.30	0.00	953.10	952.80	782.20	170.60
7				99.30	99.70	99.70	0.00	953.00	952.90	783.00	169.90
8				97.00	98.20	98.20	0.00	952.70	953.30	782.00	171.30
9				70.30	70.30	70.30	0.00	952.70	952.80	780.50	172.30
10				61.20	61.60	61.60	0.00	952.60	952.70	780.30	172.40
11				62.40	60.10	60.10	0.00	953.20	953.00	779.60	173.40
12				62.50	63.70	63.70	0.00	952.90	953.40	781.20	172.20
13				70.00	70.40	70.40	0.00	952.80	952.70	781.20	171.50
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TOT	188179		209
AVG	31363	1307	35	85.44	85.69	85.69	0.00	952.89	952.97	781.63	171.34

MAX	37823			118.70	119.90	119.90	0.00	953.50	953.40	783.80	173.40
MIN	25313			61.20	60.10	60.10	0.00	952.50	952.60	779.60	169.00