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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
1 351 331 411 598 493 289 214 129 184 283 366 464
2 364 353 466 613 401 272 198 190 322 170 250 502
3 340 344 429 730 385 275 176 155 163 147 281 400
4 328 429 431 654 348 268 164 226 124 145 213 418
5 329 407 604 518 378 319 220 212 149 172 203 411
6 335 341 525 476 470 305 173 180 171 132 221 366
7 309 343 517 531 485 277 215 181 333 123 200 344
8 364 317 452 481 466 238 215 154 652 166 200 333
9 383 284 480 430 437 235 163 154 260 154 260 291
10 468 266 589 446 409 225 160 158 204 159 242 313
11 364 262 727 479 419 335 136 164 167 175 224 452
12 350 284 596 483 431 346 203 215 137 181 267 508
13 387 277 534 610 391 390 230 461 125 149 289 419
14 423 267 521 546 386 309 261 294 107 158 237 431
15 372 286 507 618 435 238 264 198 101 168 249 393
16 373 334 459 673 511 211 225 152 125 177 274 389
17 342 328 441 705 529 208 237 130 141 162 347 479
18 355 348 442 510 408 221 202 134 447 160 267 513
19 430 330 426 460 404 219 154 140 291 302 240 386
20 518 297 469 446 413 250 136 119 175 306 272 333
21 368 348 572 423 340 398 121 168 129 268 266 421
22 304 360 702 453 295 290 156 190 124 204 282 391
23 356 368 604 417 282 238 335 166 247 195 417 416
24 482 450 614 372 285 234 449 126 206 213 317 517
25 495 536 564 358 264 216 448 111 185 207 338 647
26 449 472 525 375 256 323 302 97 186 197 301 453
27 450 415 615 375 254 351 185 91 187 230 326 376
28 453 416 615 394 240 731 150 162 313 329 545 376
29 390 573 689 360 257 343 148 128 280 374 426 365
30 381   595 388 304 225 131 104 280 374 358 352
31 375   573   287   128 105   311   331