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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 01572190 Swatara Creek near Inwood, PA


Lebanon County, Pennsylvania
Hydrologic Unit Code 02050305
Latitude  40°28'45", Longitude  76°31'52" NAD27
Drainage area 167  square miles
Gage datum 426.13 feet above NAVD88
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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 1988-10-01 -> 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
1 351 331 406 586 482 322 214 129 184 283 366 464
2 364 353 459 600 393 291 198 190 322 170 250 502
3 340 344 422 714 377 286 176 155 163 147 281 400
4 328 429 424 640 353 275 164 226 124 145 213 418
5 329 407 601 508 384 323 220 212 149 172 203 411
6 335 341 556 467 473 308 173 180 171 132 221 366
7 309 343 528 520 496 279 215 181 333 123 200 344
8 364 317 457 472 469 241 215 154 652 166 200 333
9 383 284 480 422 455 239 163 154 260 154 260 291
10 468 266 584 437 432 242 160 158 204 159 242 313
11 364 262 716 470 430 342 136 164 167 175 224 452
12 350 284 587 475 435 348 203 215 137 181 267 508
13 387 272 526 598 397 388 230 461 125 149 289 419
14 423 265 513 536 430 309 261 294 107 158 237 431
15 372 283 499 606 468 240 264 198 101 168 249 393
16 373 333 452 659 547 215 225 152 125 177 274 389
17 342 341 442 689 561 213 237 130 141 162 347 479
18 355 349 440 499 426 227 202 134 447 160 267 513
19 430 328 422 451 414 225 154 140 291 302 240 386
20 518 294 464 438 418 252 136 119 175 306 272 333
21 368 343 564 415 344 395 121 168 129 268 266 421
22 304 354 689 443 306 290 156 190 124 204 282 391
23 356 361 594 409 292 238 335 166 247 195 417 416
24 482 441 603 365 290 233 449 126 206 213 317 517
25 495 525 554 351 268 216 448 111 185 207 338 647
26 449 463 515 368 258 323 302 97 186 197 301 453
27 450 409 603 369 255 351 185 91 187 230 326 376
28 453 411 602 386 242 731 150 162 313 329 545 376
29 390 573 675 353 262 343 148 128 280 374 426 365
30 381   583 380 305 225 131 104 280 374 358 352
31 375   562   359   128 105   311   331