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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 01576500 Conestoga River at Lancaster, PA


Lancaster County, Pennsylvania
Hydrologic Unit Code 02050306
Latitude  40°03'00", Longitude  76°16'39" NAD27
Drainage area 324  square miles
Gage datum 245.63 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 1928-10-01 -> 2024-09-30)

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
1 452 458 659 700 597 400 298 276 276 315 277 397
2 533 483 667 747 499 465 274 278 354 274 248 397
3 505 576 623 761 507 413 305 271 276 297 309 359
4 516 601 662 718 520 390 293 398 236 226 263 380
5 469 523 734 715 487 370 267 301 204 219 245 432
6 486 482 706 709 558 378 292 237 249 212 250 440
7 468 606 714 706 520 364 337 259 278 198 252 459
8 459 548 627 669 489 361 360 240 459 234 265 417
9 499 457 641 664 479 326 293 250 400 327 349 398
10 523 457 651 682 465 322 322 254 236 261 263 406
11 445 486 720 628 456 355 312 263 265 270 263 489
12 443 511 734 621 460 387 311 224 271 258 284 490
13 437 506 709 652 486 411 359 344 250 214 304 510
14 446 585 721 618 490 370 342 284 208 195 284 523
15 467 541 770 630 428 314 384 218 233 218 292 451
16 426 546 660 771 463 320 306 198 264 228 290 458
17 387 540 630 714 503 365 284 242 320 239 353 492
18 426 540 642 586 435 315 308 277 261 248 318 520
19 467 540 634 558 492 366 286 316 285 302 281 431
20 543 547 676 572 463 332 263 229 211 290 308 397
21 512 541 700 524 438 365 352 224 193 258 306 496
22 485 558 864 538 412 621 321 364 221 222 334 445
23 439 582 783 520 501 826 331 293 261 250 358 421
24 516 651 758 504 440 347 398 376 255 244 293 425
25 637 734 692 547 390 298 259 230 282 219 393 486
26 692 753 665 534 422 329 276 219 265 238 369 429
27 639 704 736 565 389 383 354 197 271 263 348 450
28 588 678 728 552 386 426 394 271 286 291 389 438
29 495 587 733 538 415 386 340 232 253 287 432 419
30 476   657 519 427 328 306 197 339 369 415 458
31 521   677   390   253 189   284   432