US Army Corps of Engineers

John Day & Lake Umatilla

January 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 24828 1034 52 135.60 133.10 132.20 0.00 264.68 264.65 160.51 104.14
2 26305 1096 52 146.70 141.40 140.50 0.00 264.88 264.68 160.75 103.93
3 26147 1089 52 150.50 140.00 139.20 0.00 265.28 264.90 160.67 104.23
4 26061 1086 53 140.00 140.10 139.20 0.00 265.27 265.22 161.33 103.89
5 24373 1016 52 141.00 130.60 129.40 0.00 265.67 265.62 161.25 104.37
6 26227 1093 52 142.20 139.60 138.60 0.00 265.77 265.80 160.99 104.81
7 27680 1153 56 147.20 147.20 146.40 0.00 265.77 265.60 160.85 104.75
8 25919 1080 54 135.10 137.80 136.60 0.00 265.67 265.65 160.50 105.15
9 25786 1074 54 129.40 137.30 136.40 0.00 265.37 265.44 160.60 104.84
10 22037 918 54 117.00 117.00 116.00 0.00 265.37 265.44 160.32 105.12
11 20705 863 53 114.80 109.70 108.80 0.00 265.57 265.50 160.15 105.35
12 22331 930 53 108.10 118.60 117.50 0.00 265.16 265.59 160.49 105.10
13 26216 1092 55 144.50 139.20 138.20 0.00 265.37 265.25 160.30 104.95
14 23551 981 53 119.90 125.20 124.20 0.00 265.17 265.20 160.10 105.10
15 136.20 138.80 137.70 0.00 265.07 265.02 160.19 104.83
16 111.90 114.70 113.60 0.00 264.96 264.88 159.91 104.97
17 111.50 116.70 115.70 0.00 264.77 264.91 160.01 104.90
18 129.70 124.40 123.40 0.00 264.97 264.98 160.10 104.88
19 139.80 139.70 138.50 0.00 264.97 265.10 160.11 104.99
20 144.20 152.20 151.20 0.00 264.66 264.78 160.34 104.44
21 141.90 149.80 149.10 0.00 264.36 264.52 160.49 104.03
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TOT348165  745        
AVG 24869 1036 53 132.72 133.00 132.02 0.00 265.18 265.18 160.47 104.70
MAX 27680   150.50 152.20 151.20 0.00 265.77 265.80 161.33 105.35
MIN 20705   108.10 109.70 108.80 0.00 264.36 264.52 159.91 103.89
BUILDING STRONG®