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USGS Daily Statistics for Massachusetts

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ICE EFFECTS ON STREAMFLOW

The formation of ice on rivers can cause discharge values to appear unusually high. Display of these erroneous discharge data may result in improper assessment of flow conditions and misuse of the data. For this reason, display of discharge values for streams significantly affected by ice may be disabled from view. Display of discharge data will resume when ice conditions are no longer present. Discharge values for streams minimally affected by ice will continue to be displayed. Flows for streams with these conditions appear to increase during the night and decrease to near-base-line conditions around midday. To estimate the correct discharge for these streams, use the flow rate that corresponds to the bottom of the discharge curve, rather than the peak that corresponds to the top of the curve. Note that this method of estimation is possible only when no surface runoff is occurring. Daily mean discharges for periods of both significant and minimal ice-effect will be estimated and published in the Annual Water-Data Report for the water year in which they occurred.


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 01177000 CHICOPEE RIVER AT INDIAN ORCHARD, MA


Hampden County, Massachusetts
Hydrologic Unit Code 01080204
Latitude  42°09'38", Longitude  72°30'52" NAD27
Drainage area 689  square miles
Contributing drainage area 689  square miles
Gage datum 124.31 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 1927-10-01 -> 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
1 946 1,020 1,140 2,030 1,460 1,080 641 509 401 557 643 911
2 1,020 1,010 1,110 2,040 1,430 1,070 594 469 426 535 640 909
3 994 1,050 1,150 2,060 1,410 1,030 583 455 406 519 673 927
4 993 1,090 1,210 2,050 1,450 1,000 540 451 417 516 711 896
5 969 1,080 1,250 2,050 1,410 959 568 463 410 508 715 900
6 975 1,030 1,350 2,070 1,350 956 572 451 404 492 714 927
7 1,010 1,030 1,510 2,060 1,320 975 556 457 452 501 690 963
8 1,030 1,070 1,430 1,990 1,290 943 544 462 436 508 692 974
9 1,010 994 1,460 1,920 1,290 895 518 448 443 536 714 960
10 1,040 951 1,460 1,880 1,290 896 518 459 443 519 726 969
11 1,030 989 1,440 1,830 1,270 868 493 451 434 488 712 1,000
12 1,020 1,010 1,540 1,800 1,270 831 488 490 441 487 769 1,040
13 1,020 972 1,590 1,870 1,240 840 483 507 436 494 780 1,030
14 1,000 1,000 1,580 1,860 1,220 871 513 502 423 489 785 1,000
15 1,000 1,000 1,620 1,810 1,190 866 514 474 425 590 777 1,000
16 1,010 1,030 1,630 1,850 1,190 798 493 474 438 587 766 978
17 974 1,020 1,680 1,940 1,210 808 488 442 481 565 772 973
18 930 1,030 1,760 1,850 1,200 799 547 455 515 571 773 1,040
19 947 1,050 1,810 1,810 1,180 764 517 743 544 578 762 1,030
20 994 1,030 1,790 1,810 1,160 717 502 644 560 583 763 981
21 982 1,030 1,760 1,740 1,120 704 498 518 837 649 798 1,000
22 999 1,050 1,840 1,700 1,100 679 526 473 768 635 786 1,030
23 1,020 1,090 1,830 1,680 1,060 669 514 449 671 602 813 981
24 1,060 1,120 1,780 1,640 1,070 667 585 450 580 618 795 976
25 1,240 1,190 1,750 1,600 1,080 709 570 399 549 648 816 974
26 1,300 1,230 1,730 1,560 1,090 661 510 421 539 665 832 1,050
27 1,310 1,190 1,770 1,590 1,050 632 512 427 571 637 871 1,030
28 1,310 1,170 1,800 1,570 1,010 639 492 446 549 645 853 988
29 1,200 1,210 1,840 1,540 969 647 499 460 552 652 901 972
30 1,090   1,920 1,500 982 643 510 424 585 673 916 973
31 1,060   1,980   1,060   502 415   667   972