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USGS Daily Statistics for the Nation

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 -> 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
1 606 381 726 817 690 378 332 173 315 404 304 607
2 653 530 821 1,130 384 424 219 273 497 214 281 524
3 575 797 593 1,000 416 337 170 180 233 226 441 504
4 564 722 662 844 470 389 204 555 187 196 249 478
5 496 567 787 941 426 335 173 263 147 209 242 644
6 425 490 783 756 513 328 219 207 272 200 235 503
7 477 495 857 695 569 321 369 182 365 141 253 605
8 569 567 707 650 479 272 168 176 244 318 401 579
9 610 394 812 605 470 223 181 172 231 293 368 629
10 573 439 809 766 435 257 200 181 176 275 323 516
11 420 521 793 528 455 261 256 190 173 223 284 776
12 529 512 743 499 490 317 306 186 413 215 403 739
13 464 748 789 711 502 426 316 379 375 186 411 661
14 506 597 944 547 520 306 413 229 309 202 394 749
15 460 586 782 728 349 224 282 187 368 214 325 538
16 436 580 647 1,050 508 271 213 162 416 201 368 627
17 383 527 708 692 478 312 186 196 289 224 456 763
18 433 534 664 459 363 200 190 168 427 216 325 751
19 643 589 693 462 418 241 174 175 246 520 310 461
20 712 554 826 503 390 332 149 126 283 339 433 408
21 561 586 937 437 325 365 207 132 183 292 349 873
22 479 564 1,120 425 300 419 220 312 293 209 358 527
23 470 639 963 441 332 307 298 243 303 234 563 538
24 766 924 837 429 456 252 257 158 342 245 339 568
25 968 1,070 779 496 357 297 235 132 262 244 472 805
26 982 803 650 483 342 235 194 123 216 235 538 590
27 705 639 767 554 422 248 259 119 404 390 534 525
28 651 737 700 536 333 372 397 589 393 459 698 632
29 514 550 745 496 545 266 273 184 443 385 555 544
30 449   708 593 585 218 219 151 230 405 613 432
31 483   773   444   190 153   298   424