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USGS Daily Statistics for Puerto Rico

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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 50027600 RIO GRANDE DE ARECIBO NR SAN PEDRO, PR


Arecibo Municipio, Puerto Rico
Hydrologic Unit Code 21010002
Latitude  18°23'55.75", Longitude  66°41'29.61" NAD27
Drainage area 173.7  square miles
Gage datum 49.2 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 2000-10-01 -> 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
1 149 296 246 282 460 351 321 404 499 517 655 604
2 286 292 216 269 499 453 352 377 549 572 547 618
3 297 257 219 276 509 398 291 470 976 530 590 573
4 285 353 219 290 423 416 242 391 749 612 682 475
5 230 347 211 269 405 497 320 400 575 591 770 414
6 196 250 264 394 488 440 301 326 529 595 856 414
7 267 272 244 468 478 388 279 345 750 966 751 389
8 309 226 237 375 587 518 272 277 685 1,130 997 355
9 281 242 305 309 765 482 340 327 590 713 820 418
10 291 269 271 316 663 419 246 332 598 741 664 385
11 340 220 238 367 614 432 254 316 514 1,200 673 631
12 280 230 269 348 462 475 292 346 591 936 678 545
13 246 276 322 297 470 401 351 338 687 859 1,470 359
14 346 239 241 401 405 336 424 315 667 788 1,300 392
15 330 260 221 347 541 366 387 407 743 795 1,040 390
16 324 294 215 392 492 359 296 421 804 718 974 413
17 276 255 211 420 413 371 263 453 729 736 755 396
18 296 245 210 357 500 324 315 365 1,160 706 728 394
19 354 189 238 405 474 286 285 429 1,610 713 741 368
20 341 209 283 397 485 400 331 422 2,190 687 799 344
21 274 232 225 429 517 347 344 406 1,250 655 716 290
22 266 202 199 365 461 359 336 448 1,270 597 731 315
23 275 342 212 439 447 382 340 636 961 573 735 295
24 267 256 232 358 586 244 296 858 764 703 690 267
25 298 197 278 448 533 321 266 566 676 741 623 197
26 249 214 262 508 499 313 307 495 696 896 590 305
27 244 205 227 417 445 382 296 526 677 643 614 312
28 265 225 512 507 564 354 365 535 650 621 582 410
29 233 227 419 546 736 335 385 468 714 715 556 408
30 297   256 510 480 275 504 628 581 725 503 348
31 250   299   429   671 619   705   293