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USGS Daily Statistics for Pennsylvania

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[!] Over the next year, the USGS Pennsylvania Water Science Center will be updating the geodetic vertical elevation (gage datum) for many locations. Click HERE for additional information including a current list of streamgages with upcoming datum changes. This update in gage datum does not affect the location of the streamgage, nor the observed local gage height or discharge recorded at the streamgage.


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 03041500 Conemaugh River at Seward, PA


Westmoreland County, Pennsylvania
Hydrologic Unit Code 05010007
Latitude  40°25'09", Longitude  79°01'35" NAD27
Drainage area 715  square miles
Gage datum 1,075.6 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 1938-10-01 -> 2023-09-30)

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 1,690 1,410 2,530 2,810 1,620 1,190 793 570 618 573 676 1,210
2 1,790 1,470 2,380 2,920 1,540 1,250 732 514 565 609 692 1,240
3 1,760 1,680 2,290 2,930 1,600 1,200 718 502 491 621 696 1,190
4 1,800 1,690 2,630 2,870 1,670 1,220 742 529 460 566 663 1,240
5 1,830 1,650 3,200 3,010 1,670 1,280 746 522 437 563 700 1,200
6 1,800 1,590 3,300 2,620 1,770 1,080 714 508 479 545 702 1,190
7 1,590 1,620 2,800 2,620 1,860 1,020 703 564 731 507 708 1,280
8 1,510 1,640 2,540 2,400 1,920 1,010 713 555 549 491 971 1,370
9 1,420 1,470 2,460 2,470 1,870 1,040 646 509 736 596 879 1,300
10 1,330 1,600 2,440 2,530 1,770 975 656 487 862 600 809 1,370
11 1,320 1,710 2,610 2,270 1,710 901 652 481 612 544 774 1,470
12 1,450 1,670 2,670 2,270 1,880 937 665 494 502 536 894 1,430
13 1,510 1,690 2,930 2,470 1,840 1,040 646 508 529 493 812 1,480
14 1,350 1,850 2,970 2,360 1,720 1,150 616 489 570 474 771 1,380
15 1,370 1,790 2,960 2,260 1,600 1,000 587 443 513 618 762 1,330
16 1,370 1,970 2,700 2,360 1,680 1,070 609 441 455 857 843 1,320
17 1,320 1,860 2,650 2,410 1,650 1,020 606 431 552 564 943 1,270
18 1,360 1,860 2,490 2,090 1,800 986 575 470 800 565 857 1,340
19 1,620 1,900 2,500 1,910 1,750 1,100 609 439 657 595 911 1,360
20 1,520 2,000 2,680 1,990 1,600 1,140 1,050 472 573 614 950 1,360
21 1,410 2,150 2,670 1,940 1,510 1,320 646 515 505 644 958 1,370
22 1,360 2,180 2,840 1,900 1,360 1,110 635 577 521 577 978 1,360
23 1,350 2,320 2,700 1,800 1,330 1,340 704 499 533 542 947 1,270
24 1,480 2,350 2,990 1,770 1,340 1,160 614 493 497 556 899 1,440
25 1,620 2,520 2,880 1,950 1,410 974 540 452 512 569 931 1,580
26 1,640 2,410 2,600 1,970 1,430 797 522 428 589 592 1,030 1,470
27 1,750 2,270 2,600 1,840 1,220 800 542 469 589 577 1,120 1,460
28 1,560 2,350 2,730 1,810 1,250 896 531 472 710 641 1,320 1,420
29 1,500 2,040 2,900 1,770 1,370 792 599 514 663 674 1,320 1,570
30 1,590   2,930 1,680 1,250 717 581 439 583 876 1,230 1,830
31 1,570   3,020   1,260   608 421   718   1,650