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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 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
1 148 289 243 282 460 351 321 404 499 517 645 585
2 287 283 221 269 499 453 352 377 549 572 546 600
3 292 254 217 276 509 398 291 470 976 530 573 554
4 282 344 217 290 423 416 242 391 749 612 661 462
5 231 337 211 269 405 497 320 400 575 591 751 405
6 193 244 264 394 488 440 301 326 529 595 833 405
7 258 262 244 468 478 388 279 345 750 966 735 379
8 303 231 237 375 587 518 272 277 685 1,130 970 346
9 276 240 305 309 765 482 340 327 590 713 800 404
10 289 265 271 316 663 419 246 332 598 741 663 378
11 335 218 238 367 614 432 254 316 514 1,200 672 618
12 276 228 269 348 462 475 292 346 591 936 657 528
13 244 272 322 297 470 401 351 338 687 859 1,420 350
14 337 236 241 401 405 336 424 315 667 788 1,250 380
15 322 256 221 347 541 366 387 407 743 795 1,010 386
16 318 290 215 392 492 359 296 421 804 718 941 402
17 270 250 211 420 413 371 263 453 729 736 731 384
18 286 239 210 357 500 324 315 365 1,160 706 712 380
19 348 188 238 405 474 286 285 429 1,610 713 719 357
20 334 205 283 397 485 400 331 422 2,190 687 775 337
21 280 226 225 429 517 347 344 406 1,250 655 691 290
22 263 213 199 365 461 359 336 448 1,270 597 707 310
23 270 339 212 439 447 382 340 636 961 573 708 311
24 263 257 232 358 586 244 296 858 764 694 665 259
25 295 195 278 448 533 321 266 566 676 725 604 201
26 245 213 262 508 499 313 307 495 696 866 582 299
27 241 204 227 417 445 382 296 526 677 635 596 305
28 260 223 512 507 564 354 365 535 650 640 562 398
29 229 222 419 546 736 335 385 468 714 717 538 403
30 286   256 510 480 275 504 628 581 720 489 341
31 248   299   429   671 619   688   285