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USGS Daily Statistics for the Nation

The statistics generated from this site are based on approved daily-mean data and may not match those published by the USGS in official publications. The user is responsible for assessment and use of statistics from this site. For more details on why the statistics may not match, click here.

USGS 14020850 UMATILLA R AT W RESERVATION BNDY NR PENDLETON, OR


Umatilla County, Oregon
Hydrologic Unit Code 17070103
Latitude  45°40'18", Longitude 118°44'08" NAD27
Drainage area 441  square miles
Gage datum 1,130 feet above NGVD29
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00060, Discharge, cubic feet per second,
Day of
month		 Mean of daily mean values for each day for water year of record in, ft3/s   (Calculation Period 1995-10-01 -> 2025-09-30)

Calculation period restricted by USGS staff due to special conditions at/near site
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1 919 967 855 1,390 1,100 587 120 46 41 60 99 376
2 807 850 842 1,360 1,040 563 112 45 42 59 94 428
3 666 817 853 1,290 1,030 667 106 44 42 57 91 462
4 620 816 870 1,270 1,020 631 100 44 42 58 93 427
5 609 840 860 1,330 1,060 614 95 43 42 57 119 404
6 636 1,160 954 1,420 1,100 541 91 43 43 56 114 379
7 657 1,450 908 1,390 1,130 473 87 44 42 56 117 357
8 712 1,260 931 1,530 1,020 426 83 44 42 56 140 412
9 674 1,140 1,010 1,640 922 394 80 43 43 59 138 424
10 672 1,040 1,320 1,580 842 398 79 42 44 60 130 441
11 666 876 1,300 1,540 808 406 77 42 44 61 126 462
12 678 797 1,210 1,540 815 417 73 41 44 61 134 498
13 700 764 1,230 1,480 800 461 71 41 44 61 142 593
14 677 758 1,290 1,530 807 443 68 41 43 61 161 653
15 706 898 1,320 1,360 873 375 65 40 44 61 156 598
16 830 962 1,470 1,240 968 328 63 40 45 62 151 510
17 954 950 1,370 1,360 1,000 296 62 39 46 62 154 491
18 805 987 1,270 1,290 970 270 61 39 48 63 159 476
19 773 994 1,320 1,290 906 258 60 39 49 63 168 474
20 771 911 1,300 1,520 905 236 59 40 50 67 204 441
21 797 833 1,260 1,470 960 217 57 41 51 66 219 590
22 772 862 1,280 1,340 803 201 55 41 51 69 243 523
23 706 907 1,360 1,330 752 184 55 42 50 73 253 484
24 729 975 1,420 1,480 741 171 53 42 49 73 271 492
25 727 872 1,470 1,390 688 163 52 42 48 74 302 483
26 702 769 1,420 1,320 688 157 50 42 49 73 392 462
27 777 724 1,360 1,320 709 152 49 41 49 75 338 463
28 751 777 1,370 1,280 720 145 48 41 49 77 483 504
29 883 1,020 1,450 1,210 756 137 47 40 50 85 430 673
30 955   1,470 1,140 725 128 47 40 52 88 407 874
31 983   1,450   641   46 41   96   897