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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 01481000 Brandywine Creek at Chadds Ford, PA


Delaware County, Pennsylvania
Hydrologic Unit Code 02040205
Latitude  39°52'11", Longitude  75°35'37" NAD27
Drainage area 287  square miles
Gage datum 150.45 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 1973-10-01 -> 2020-09-30)

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
1 519 490 530 724 751 438 364 313 243 427 321 463
2 479 519 661 746 540 455 351 264 220 289 280 460
3 506 618 563 751 546 432 340 250 239 286 373 452
4 508 602 547 662 542 458 339 276 225 250 286 408
5 452 575 659 698 521 433 362 235 201 269 331 477
6 434 542 580 614 563 446 335 228 357 262 321 480
7 433 547 580 568 530 455 337 218 366 221 299 453
8 487 464 585 549 514 405 340 242 339 303 351 510
9 493 431 684 588 526 376 288 253 325 399 360 520
10 417 437 706 687 512 433 289 333 251 339 327 475
11 455 485 757 600 530 449 336 262 234 369 331 596
12 525 548 585 564 529 384 339 267 219 311 357 606
13 448 580 667 642 550 455 470 548 222 254 387 582
14 516 492 794 591 541 428 482 345 221 254 317 650
15 462 558 717 654 470 374 405 258 413 294 307 521
16 448 571 598 900 565 344 341 225 410 279 354 595
17 404 522 571 741 577 396 320 241 487 287 401 642
18 495 503 576 587 487 434 312 254 364 274 329 556
19 582 509 618 536 547 445 286 269 357 439 307 496
20 712 526 717 577 482 494 293 258 299 364 367 428
21 617 542 784 527 452 583 390 254 265 347 357 683
22 473 604 1,020 553 447 395 323 317 405 300 343 494
23 446 654 725 557 472 361 396 226 345 266 441 495
24 606 747 721 536 514 365 360 208 410 303 341 513
25 841 877 625 561 425 364 289 202 314 317 410 547
26 829 694 581 565 472 369 273 196 336 278 432 556
27 655 518 697 612 440 423 319 225 391 397 452 548
28 632 504 689 548 398 598 395 546 468 468 545 476
29 556 559 740 530 447 411 265 285 516 418 483 460
30 500   687 545 512 333 271 257 361 465 492 423
31 510   746   395   253 228   321   423