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USGS Surface-Water Daily Statistics for New York

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 03010820 ALLEGHENY RIVER AT OLEAN NY


Cattaraugus County, New York
Hydrologic Unit Code 05010001
Latitude  42°04'20.5", Longitude  78°27'03.1" NAD83
Drainage area 1,168  square miles
Gage datum 1,399.50 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 2009-10-01 -> 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 3,270 2,520 3,430 4,070 3,170 1,280 1,180 500 424 1,080 3,330 3,130
2 3,430 2,330 3,410 3,820 3,260 1,470 1,270 512 394 931 3,380 3,800
3 3,120 2,120 3,320 3,700 3,220 1,470 1,200 547 478 1,020 3,070 4,030
4 3,200 2,100 3,180 3,950 3,300 1,610 1,220 568 424 929 2,620 3,610
5 3,190 1,980 2,810 4,480 3,140 1,340 1,020 474 454 885 2,110 3,080
6 2,790 1,950 3,180 4,190 2,980 1,340 901 501 640 888 2,110 2,890
7 2,470 1,980 3,510 4,150 2,830 1,160 881 448 451 1,040 2,140 2,830
8 2,120 2,510 3,690 4,370 2,600 1,020 992 450 385 1,000 1,950 2,460
9 2,170 2,480 3,400 4,080 2,450 1,340 894 464 364 793 1,740 2,190
10 2,490 2,390 3,280 3,880 2,670 1,330 804 495 598 701 1,650 2,430
11 2,630 2,210 4,040 3,980 2,620 1,080 689 527 851 606 1,680 2,560
12 3,690 2,040 4,500 4,270 2,440 973 751 519 923 604 2,180 2,340
13 5,110 2,010 4,280 4,170 2,740 1,190 793 610 852 575 2,020 2,120
14 4,950 1,790 3,840 3,830 3,010 1,220 844 617 715 563 1,730 1,900
15 4,230 1,660 3,700 3,720 2,880 1,170 1,030 533 622 565 1,700 1,900
16 3,370 1,910 3,520 3,720 3,470 1,200 851 619 555 701 1,590 1,890
17 2,830 1,790 3,440 3,920 3,090 1,150 1,150 518 483 834 1,640 1,940
18 2,670 2,540 3,670 3,500 2,640 936 1,490 633 708 896 1,780 2,340
19 2,350 2,880 3,760 3,130 2,620 1,050 1,260 1,080 666 814 2,010 2,540
20 2,320 2,790 3,710 3,230 2,370 1,260 1,120 903 544 880 1,920 2,350
21 2,060 2,580 3,560 3,460 2,170 1,420 945 801 481 1,320 1,680 2,720
22 1,860 2,450 3,380 3,220 2,210 1,310 809 1,110 597 1,530 1,650 3,740
23 1,990 2,850 3,060 3,170 2,160 1,180 778 998 767 1,270 1,890 3,970
24 2,360 3,010 2,900 2,990 2,180 1,240 721 746 860 1,190 1,970 3,780
25 2,520 3,280 2,810 2,730 1,850 1,260 776 664 688 1,220 1,860 3,840
26 2,740 3,110 2,680 2,860 1,780 1,450 758 598 793 1,230 1,950 3,350
27 2,920 3,020 2,540 2,910 1,510 1,360 664 482 795 1,800 2,200 3,340
28 2,960 3,100 2,460 2,710 1,530 1,510 669 468 675 2,410 2,350 3,620
29 2,790 4,200 2,790 2,580 1,750 1,310 681 447 671 2,820 2,170 3,330
30 2,690   3,330 2,970 1,780 1,070 611 464 913 3,760 2,040 3,260
31 2,620   3,650   1,390   536 457   3,370   3,090