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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.



[!] ICE EFFECTS ON STREAMFLOW -- During cold weather, stage and discharge values may be affected by ice at some streamgages. Streamgages experiencing ice conditions will have the discharge record temporarily disabled to prevent the display of erroneous discharge values. Display of discharge record will resume when it is determined that ice conditions are no longer present. Adjustment of data affected by ice can only be done after detailed analysis.



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 01573560 Swatara Creek near Hershey, PA


Dauphin County, Pennsylvania
Hydrologic Unit Code 02050305
Latitude  40°17'54", Longitude  76°40'05" NAD27
Drainage area 483  square miles
Gage datum 325.94 feet above NGVD29
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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 1975-10-01 -> 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
1 922 862 1,080 1,430 1,100 707 669 372 447 659 813 1,120
2 997 1,010 1,230 1,430 904 739 588 441 655 538 697 1,180
3 948 1,000 1,180 1,470 931 680 511 398 569 515 707 1,040
4 910 1,160 1,140 1,440 904 718 473 486 338 500 578 991
5 860 1,110 1,530 1,370 895 769 605 518 412 471 543 1,020
6 831 908 1,540 1,280 1,030 830 575 452 537 436 580 1,010
7 782 866 1,320 1,290 1,080 775 581 560 836 377 560 954
8 905 825 1,170 1,210 975 654 608 498 1,940 447 550 897
9 1,040 720 1,140 1,150 959 611 496 455 1,730 592 655 799
10 1,060 665 1,240 1,230 837 568 439 454 648 717 611 850
11 908 746 1,450 1,240 860 754 405 427 443 647 628 1,020
12 861 837 1,470 1,180 896 760 407 624 378 596 667 1,170
13 880 787 1,310 1,250 870 803 561 731 472 456 794 1,140
14 899 734 1,420 1,230 918 738 563 744 469 474 678 1,240
15 845 835 1,520 1,330 986 581 594 472 327 529 670 1,100
16 809 870 1,310 1,700 1,070 555 514 410 337 481 722 1,050
17 766 922 1,140 1,730 1,230 565 520 356 433 483 909 1,110
18 758 921 1,160 1,290 974 614 515 363 749 524 750 1,190
19 818 896 1,150 1,100 1,020 592 422 411 915 726 660 1,090
20 1,140 927 1,190 1,050 1,140 666 368 345 492 781 687 885
21 1,180 982 1,400 969 916 805 358 445 352 800 762 1,030
22 875 1,000 1,830 992 783 698 385 526 408 652 754 1,010
23 843 1,040 1,640 932 790 632 648 426 504 559 935 993
24 1,140 1,350 1,510 887 788 610 1,000 367 512 601 819 1,120
25 1,560 1,610 1,360 935 751 576 1,000 308 423 570 849 1,450
26 1,330 1,470 1,280 905 718 752 871 285 457 559 768 1,250
27 1,510 1,150 1,480 937 710 760 609 258 448 570 843 1,020
28 1,320 1,070 1,540 901 638 1,020 446 393 624 777 994 964
29 1,030 1,200 1,570 891 790 1,120 408 422 640 854 1,280 932
30 953   1,380 883 911 662 412 322 534 858 1,020 867
31 938   1,330   753   368 311   809   820