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USGS Daily Statistics for Pennsylvania

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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 01573000 Swatara Creek at Harper Tavern, PA


Lebanon County, Pennsylvania
Hydrologic Unit Code 02050305
Latitude  40°24'09", Longitude  76°34'39" NAD27
Drainage area 337  square miles
Gage datum 356.68 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 97 - 98 years of record in, ft3/s   (Calculation Period 1918-10-01 -> 2016-09-30)

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
1 668 602 870 1,020 728 557 395 267 288 467 405 781
2 745 653 877 1,110 636 559 372 276 269 346 443 802
3 710 711 857 1,130 666 530 391 259 278 379 502 705
4 692 714 908 1,050 701 493 320 314 230 317 425 736
5 646 660 1,180 1,060 715 453 320 244 229 277 407 871
6 695 581 1,210 1,110 674 564 334 238 292 302 364 880
7 662 713 1,130 1,050 659 493 306 254 416 260 383 859
8 685 700 1,020 913 624 462 348 232 761 270 420 796
9 732 571 1,010 941 664 400 311 243 413 320 569 751
10 682 545 976 929 659 386 333 246 222 371 451 702
11 616 629 1,150 869 658 370 292 253 217 296 409 795
12 575 687 1,260 854 753 421 292 261 205 262 421 826
13 522 665 1,150 825 696 465 308 339 287 254 546 821
14 563 748 1,120 838 631 442 298 318 262 279 454 880
15 602 760 1,190 884 666 370 293 225 262 306 471 755
16 574 677 1,040 1,040 714 355 302 206 229 286 529 707
17 560 682 1,040 1,120 779 332 336 289 258 316 650 732
18 545 663 1,020 877 646 407 278 267 376 327 550 689
19 614 717 981 761 686 424 309 298 423 443 513 609
20 772 735 1,070 764 685 393 310 194 320 462 548 593
21 775 775 1,110 722 664 470 309 231 245 422 566 777
22 776 804 1,260 721 735 747 305 232 263 342 592 703
23 618 856 1,170 707 728 791 360 238 269 411 648 631
24 748 1,010 1,130 670 611 437 349 388 247 432 517 671
25 941 1,060 1,080 701 607 370 252 303 279 411 574 702
26 881 1,090 1,020 669 677 500 233 232 390 434 634 686
27 872 946 1,110 679 604 476 249 188 440 436 557 684
28 781 953 1,100 758 567 609 220 239 436 483 721 624
29 648 740 1,040 719 656 545 245 221 350 495 846 634
30 630   938 674 615 459 288 179 415 461 739 711
31 663   992   593   226 202   412   688