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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 01473000 Perkiomen Creek at Graterford, PA


Montgomery County, Pennsylvania
Hydrologic Unit Code 02040203
Latitude  40°13'46", Longitude  75°27'07" NAD27
Drainage area 279  square miles
Gage datum 112.66 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 1956-10-01 -> 2022-09-30)

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
1 607 379 731 829 643 389 341 174 326 415 312 624
2 660 534 797 1,110 378 431 224 279 517 216 288 537
3 574 810 574 892 419 344 171 183 240 225 456 506
4 562 735 625 789 479 400 208 575 192 182 255 472
5 499 576 784 951 434 344 176 270 150 193 248 651
6 422 496 785 730 521 324 224 212 267 198 241 499
7 462 503 853 645 495 327 381 183 373 140 259 554
8 565 576 712 569 441 277 171 176 250 327 415 577
9 571 399 813 594 469 226 155 163 237 301 380 636
10 424 446 749 775 438 262 162 171 177 282 334 519
11 407 530 791 533 460 267 257 188 162 228 293 698
12 529 521 748 499 499 326 313 188 423 220 413 738
13 429 761 799 725 512 435 324 382 383 179 422 668
14 500 604 960 556 532 312 424 233 315 171 407 762
15 460 595 795 746 350 228 288 189 380 210 335 537
16 437 590 657 1,080 517 276 211 163 431 201 358 591
17 384 533 721 712 487 318 182 200 298 227 465 763
18 437 539 676 467 370 203 185 171 442 217 331 552
19 649 598 707 391 406 247 172 179 251 536 318 438
20 695 563 844 504 362 342 149 127 292 349 447 403
21 563 595 959 442 303 378 210 134 187 299 358 887
22 483 572 1,150 431 296 434 224 322 302 212 335 532
23 451 643 898 445 330 314 306 250 310 239 574 499
24 767 937 825 436 466 256 264 162 342 250 345 566
25 965 1,090 786 508 365 304 212 134 248 249 486 818
26 901 819 653 496 350 240 186 124 214 240 555 599
27 695 651 777 569 433 249 264 121 414 401 519 527
28 601 738 702 551 334 382 408 612 405 475 713 468
29 493 508 754 499 561 273 276 188 452 398 568 533
30 443   719 593 601 222 223 153 232 418 632 429
31 482   787   456   194 156   306   425