Warning: Javascript must be enabled to use all the features on this page!


Page Loading - Please Wait...

Click to hideNews Bulletins

USGS Surface-Water Daily Statistics for Colorado

Click to hide state-specific text


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
Output formats
HTML table of all data
Tab-separated data
Reselect output format

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 -> 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 15 18 16 205 394 517 755 618 454 217 41 10
2 15 17 15 247 400 527 740 603 409 210 28 9.4
3 14 18 13 259 417 515 722 626 399 208 26 8.7
4 12 18 12 270 415 501 739 621 393 207 25 8.3
5 13 16 12 285 413 517 732 624 377 205 25 8.4
6 15 16 14 294 423 520 757 602 370 209 25 8.7
7 16 20 15 310 448 521 757 561 356 209 24 9.1
8 16 23 20 335 470 516 756 548 329 198 23 9.1
9 14 23 27 342 472 530 760 570 319 191 23 8.6
10 11 18 30 348 480 576 755 581 332 191 21 8.4
11 11 12 26 365 474 602 763 565 312 186 21 8.3
12 12 12 23 365 480 603 780 539 295 187 21 9.5
13 14 16 24 381 486 611 804 516 296 185 20 11
14 15 17 24 391 487 622 746 505 302 177 19 11
15 15 14 22 399 473 655 739 495 301 176 18 14
16 14 13 23 400 479 642 744 492 295 173 17 20
17 13 14 24 388 493 624 724 470 287 173 17 20
18 13 16 25 380 481 670 716 458 273 175 15 17
19 13 16 34 383 472 693 717 466 261 174 14 13
20 14 17 46 397 471 679 720 450 249 177 13 13
21 17 20 57 419 471 674 700 456 241 175 14 13
22 16 22 57 431 467 704 702 474 251 172 15 15
23 14 21 52 429 462 730 718 486 258 171 13 17
24 13 19 57 429 491 723 695 486 250 173 13 16
25 13 19 65 414 502 698 674 496 242 175 13 16
26 14 19 70 406 505 673 649 484 226 175 13 16
27 15 20 77 408 527 680 639 442 218 173 12 14
28 17 18 90 437 531 695 637 455 219 174 12 12
29 17 15 106 432 506 697 670 468 222 174 11 10
30 16   120 399 515 725 642 466 216 174 11 9.6
31 16   130   508   632 471   159   13