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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 11290000 TUOLUMNE R A MODESTO CA


Stanislaus County, California
Hydrologic Unit Code 18040009
Latitude  37°37'38", Longitude 120°59'00" NAD27
Drainage area 1,884  square miles
Gage datum 2.46 feet above NAVD88
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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 1939-10-01 -> 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 1,510 1,720 2,100 2,340 2,010 1,940 1,020 411 464 571 874 886
2 1,350 1,770 2,170 2,250 1,970 1,970 955 419 461 592 887 917
3 1,670 1,770 2,160 2,200 1,960 2,000 889 446 469 622 887 938
4 2,030 1,840 2,120 2,160 1,980 1,950 849 433 489 635 881 1,040
5 1,920 1,850 2,110 2,140 2,070 1,900 851 420 494 630 855 1,110
6 1,940 1,860 2,180 2,150 2,100 1,800 849 415 487 636 741 1,150
7 1,850 1,860 2,150 2,090 2,100 1,730 865 418 492 666 709 1,200
8 1,810 1,850 2,090 2,090 2,100 1,660 838 413 493 675 709 1,330
9 1,740 1,880 2,140 2,090 2,090 1,600 774 404 495 659 702 1,600
10 1,710 1,910 2,170 2,090 2,100 1,610 772 403 494 671 700 1,320
11 1,660 1,880 2,290 2,100 2,090 1,670 778 399 497 696 708 1,280
12 1,600 1,890 2,240 2,120 2,100 1,730 732 410 495 707 700 1,230
13 1,560 1,860 2,100 2,090 2,020 1,710 695 414 492 706 710 1,210
14 1,530 1,910 2,060 2,110 1,990 1,700 656 407 518 717 719 1,190
15 1,610 1,910 2,010 2,140 1,960 1,640 628 403 528 741 721 1,170
16 1,690 1,980 2,150 2,150 1,960 1,590 641 404 512 802 725 1,200
17 1,700 2,000 2,180 2,100 1,930 1,550 643 417 511 795 732 1,200
18 1,740 1,980 2,160 2,080 1,980 1,500 614 430 511 773 735 1,230
19 1,690 2,060 2,170 2,090 2,030 1,510 583 440 529 768 747 1,240
20 1,700 2,110 2,240 2,080 2,020 1,540 547 445 535 773 811 1,230
21 1,680 2,130 2,210 2,080 1,990 1,580 501 448 531 769 871 1,270
22 1,700 2,190 2,120 2,060 2,030 1,590 487 446 533 767 983 1,300
23 1,750 2,160 2,070 2,080 2,070 1,520 472 442 536 771 931 1,360
24 1,780 2,150 1,990 2,070 2,070 1,500 465 439 537 806 873 1,490
25 1,840 2,200 2,020 2,050 2,050 1,390 458 455 540 829 879 1,680
26 1,910 2,180 2,080 2,060 2,130 1,340 443 461 548 847 858 1,380
27 2,010 2,130 2,100 2,080 2,170 1,220 439 462 551 844 861 1,520
28 1,900 2,110 2,050 2,050 2,140 1,140 444 469 555 859 850 1,570
29 1,810 1,820 2,090 2,080 2,060 1,050 443 479 556 839 855 1,480
30 1,760   2,080 2,080 1,980 1,040 435 482 565 858 867 1,520
31 1,720   2,130   1,950   421 472   877   1,530