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USGS Daily Statistics for Colorado

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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 07130500 ARKANSAS RIVER BELOW JOHN MARTIN RESERVOIR, CO.


Bent County, Colorado
Hydrologic Unit Code 11020009
Latitude  38°03'59", Longitude 102°55'55" NAD27
Drainage area 18,494  square miles
Contributing drainage area 17,709  square miles
Gage datum 3,737.40 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 1948-10-01 -> 2024-09-30)

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 15 18 17 207 396 516 757 614 459 219 42 11
2 15 17 15 253 400 526 742 598 413 212 28 9.5
3 14 18 13 264 418 513 724 622 403 210 27 8.8
4 12 18 12 275 416 497 740 620 396 209 26 8.4
5 13 16 12 291 414 512 733 625 381 207 26 8.5
6 15 17 14 299 424 515 759 603 374 211 25 8.8
7 16 20 15 316 447 516 758 562 360 211 25 9.2
8 16 23 20 341 468 512 758 549 332 200 23 9.2
9 14 24 27 349 469 526 762 571 321 193 23 8.7
10 11 18 30 355 477 573 755 582 335 193 22 8.5
11 11 12 26 372 472 600 761 566 315 188 21 8.4
12 12 12 23 373 477 602 773 539 298 189 21 9.6
13 14 16 24 389 484 610 798 517 299 187 20 11
14 15 17 23 400 485 622 740 506 305 179 19 11
15 15 15 22 407 470 655 734 496 304 178 18 15
16 14 13 22 400 476 642 740 492 298 175 18 21
17 13 14 24 384 491 623 721 470 290 174 17 20
18 13 16 25 378 478 671 713 457 276 177 15 17
19 13 16 34 382 469 694 714 466 264 176 14 14
20 14 17 46 397 468 680 716 450 251 179 13 13
21 17 20 57 418 468 675 697 456 244 176 14 13
22 16 22 57 431 465 706 698 476 254 170 15 16
23 15 21 52 430 459 733 714 490 260 168 13 17
24 14 20 57 429 490 723 690 490 252 169 13 17
25 13 19 65 418 502 699 669 499 244 173 13 16
26 14 19 70 412 504 674 643 486 228 175 13 16
27 16 20 78 415 527 682 632 443 219 175 12 15
28 18 18 90 444 532 697 631 456 221 176 12 12
29 18 15 106 434 505 698 664 472 224 174 12 10
30 16   121 400 514 726 637 471 218 173 11 9.7
31 17   131   507   628 476   159   13