US Army Corps of Engineers

Lower Monumental Dam & Lake

November 2025

Day of MonthTotal Generation MWhAverage Generation MWStation Use MWhInflow kcfsTotal Outflow kcfsGeneration Flow kcfsSpill kcfsMidnight Reservoir ElevationAverage Forebay ElevationAverage Tailwater ElevationAverage Head feet
1 2478 103 16 15.40 16.10 14.00 1.40 538.45 538.65 438.90 99.75
2 2905 121 17 17.90 17.90 15.80 1.30 538.79 538.53 439.04 99.49
3 3102 129 17 20.90 19.50 17.60 1.40 538.56 538.66 439.06 99.60
4 2881 120 16 18.30 18.40 16.30 1.40 538.87 538.66 438.93 99.73
5 2548 106 17 17.30 16.50 14.30 1.40 539.24 538.84 438.72 100.12
6 2957 123 16 17.50 18.80 16.60 1.40 538.75 538.97 438.67 100.30
7 2930 122 16 19.00 18.60 16.60 1.40 538.56 538.67 438.87 99.80
8 17.70 17.80 15.60 1.40 538.70 538.64 439.06 99.58
9 18.10 17.70 15.70 1.40 538.96 538.76 439.11 99.65
10 18.20 18.70 16.50 1.40 538.94 538.83 439.13 99.70
11 17.80 18.70 16.60 1.40 538.53 538.57 439.10 99.47
12 19.20 18.20 15.90 1.40 538.98 538.67 438.93 99.74
13 19.00 18.30 16.20 1.50 538.83 538.87 438.98 99.89
14 538.81
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
1
TOT 19802  115        
AVG 2829 118 16 18.18 18.09 15.98 1.40 538.78 538.72 438.96 99.76
MAX 3102   20.90 19.50 17.60 1.50 539.24 538.97 439.13 100.30
MIN 2478   15.40 16.10 14.00 1.30 538.45 538.53 438.67 99.47