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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 01574000 West Conewago Creek near Manchester, PA


York County, Pennsylvania
Hydrologic Unit Code 02050306
Latitude  40°04'50.9", Longitude  76°43'06.21" NAD27
Drainage area 510  square miles
Gage datum 262.89 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 1928-10-01 -> 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
1 715 614 1,170 1,210 851 525 243 242 332 355 475 653
2 877 699 1,070 1,400 639 643 255 242 397 354 437 730
3 827 908 937 1,310 767 535 265 222 189 379 462 593
4 901 992 1,090 1,220 831 462 243 292 189 250 359 643
5 702 856 1,510 1,220 750 522 291 250 198 240 341 739
6 803 717 1,510 1,130 932 526 261 189 261 210 368 726
7 671 911 1,470 1,060 1,070 443 293 208 470 178 359 686
8 726 989 1,220 938 767 442 309 196 465 195 382 654
9 828 699 1,150 1,010 724 327 267 272 448 321 622 599
10 869 708 1,130 1,060 676 351 302 259 358 386 443 644
11 674 730 1,280 863 626 369 240 240 317 410 386 864
12 642 689 1,280 785 748 389 186 231 246 428 368 903
13 654 799 1,270 945 753 485 269 386 187 241 585 751
14 654 952 1,340 1,000 670 472 261 397 190 300 438 907
15 708 938 1,470 1,040 628 423 239 218 350 301 455 715
16 686 893 1,160 1,190 747 329 249 172 292 247 424 779
17 586 885 1,040 1,380 784 355 233 216 433 272 521 870
18 583 900 1,030 858 686 360 263 246 415 333 460 838
19 664 887 995 698 713 459 285 250 387 454 452 643
20 916 1,020 1,210 965 619 393 217 185 250 378 476 589
21 808 1,020 1,350 876 624 428 201 218 183 328 449 841
22 770 1,070 1,670 774 752 1,060 294 219 267 254 592 686
23 723 1,060 1,440 718 600 714 398 282 354 350 674 689
24 1,050 1,360 1,430 640 576 430 370 566 393 366 445 669
25 1,080 1,360 1,200 698 488 373 309 254 395 255 561 782
26 1,100 1,280 1,070 777 538 376 260 189 911 328 502 691
27 1,050 1,240 1,190 888 473 321 233 150 389 364 474 845
28 1,040 1,250 1,170 806 516 503 311 174 420 419 622 707
29 804 1,110 1,240 748 750 347 286 157 455 450 836 689
30 722   1,100 738 644 264 245 122 473 655 833 833
31 774   1,220   535   229 151   455   718