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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 -> 2019-09-30)

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
1 521 492 533 728 741 440 364 310 244 433 281 467
2 482 522 667 751 537 458 351 262 220 292 273 458
3 511 623 567 758 545 433 340 248 236 289 373 453
4 511 607 547 667 541 453 339 275 225 252 285 411
5 454 579 664 704 520 422 362 233 201 271 332 482
6 437 541 584 618 564 437 335 226 359 265 322 485
7 436 542 581 572 529 454 337 216 369 222 299 458
8 491 458 588 549 514 405 340 239 343 305 353 517
9 497 430 690 591 520 377 288 251 328 404 362 523
10 419 437 713 693 511 435 289 334 253 343 329 467
11 458 476 765 605 527 449 336 261 235 373 333 594
12 529 544 590 569 522 384 339 267 218 315 360 608
13 450 578 672 587 552 458 470 554 222 257 390 587
14 520 488 803 569 543 431 482 345 221 256 319 652
15 466 559 725 650 471 376 403 248 418 298 309 520
16 452 573 604 900 569 345 338 222 414 278 357 600
17 407 523 576 739 582 398 317 240 494 279 405 627
18 500 504 581 587 489 437 298 253 368 275 332 549
19 587 510 614 537 552 449 277 268 361 445 310 494
20 719 528 721 579 486 498 288 258 302 368 371 428
21 625 545 793 528 454 587 389 253 267 347 361 689
22 477 609 1,030 554 446 397 320 316 410 301 346 498
23 450 660 730 559 467 364 363 225 349 262 447 498
24 613 755 723 527 515 367 352 207 416 305 332 516
25 804 887 629 558 426 364 284 201 318 320 408 552
26 805 699 584 563 475 369 269 195 341 280 435 561
27 654 513 704 609 442 423 316 225 396 384 456 553
28 633 505 683 547 399 598 395 553 475 461 551 479
29 556 569 722 528 449 411 262 286 524 420 488 463
30 500   686 543 508 333 269 258 366 469 498 418
31 512   748   396   250 228   319   418