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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 50144000 RIO GRANDE DE ANASCO NR SAN SEBASTIAN, PR


Anasco Municipio, Puerto Rico
Hydrologic Unit Code 21010003
Latitude  18°17'03.00", Longitude  67°03'03.46" NAD27
Drainage area 134  square miles
Gage datum 164.0 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 1962-10-01 -> 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
1 170 148 134 142 289 360 238 345 571 837 618 350
2 171 123 119 143 304 348 246 324 594 692 596 341
3 163 121 112 146 359 333 276 336 629 618 665 317
4 158 121 108 149 300 321 244 303 547 561 601 304
5 155 129 112 147 317 323 273 390 528 597 541 302
6 187 123 131 176 357 287 256 327 601 683 569 301
7 161 130 108 147 481 259 270 359 694 805 545 276
8 165 119 121 146 410 308 287 342 599 901 623 272
9 156 120 108 192 433 315 260 350 518 795 694 266
10 153 134 112 182 464 375 258 366 817 779 579 296
11 155 120 130 169 475 513 277 406 632 909 528 373
12 150 115 110 173 359 394 323 329 600 797 548 307
13 149 109 108 177 416 329 322 314 780 696 677 262
14 165 111 122 188 420 314 322 542 590 733 647 270
15 160 121 113 196 331 323 295 375 591 797 558 244
16 168 114 104 162 403 349 286 427 1,180 704 564 242
17 149 114 95 165 506 351 288 525 767 789 541 255
18 149 109 97 178 710 356 321 398 840 819 564 242
19 143 102 124 180 580 306 373 475 975 712 509 210
20 139 105 130 200 416 293 359 386 2,160 756 502 220
21 148 116 120 222 487 315 326 378 1,740 764 484 228
22 159 133 98 201 380 301 307 403 1,990 684 447 222
23 149 108 105 192 410 299 349 523 850 739 399 203
24 149 113 113 242 405 287 305 572 815 710 391 199
25 134 112 125 235 391 333 276 587 838 738 400 199
26 132 107 124 323 348 321 281 447 718 757 409 204
27 130 109 119 322 498 304 299 508 806 755 426 195
28 125 112 134 277 459 331 307 453 666 709 398 189
29 142 97 152 293 424 321 315 411 715 740 347 186
30 131   150 279 398 292 381 407 750 738 335 178
31 139   158   345   376 669   679   170