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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 50059050 RIO GRANDE DE LOIZA BLW LOIZA DAMSITE, PR


Trujillo Alto Municipio, Puerto Rico
Hydrologic Unit Code 21010005
Latitude  18°20'32.17", Longitude  66°00'21.51" NAD27
Drainage area 209  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 1986-10-01 -> 2021-09-30)

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
1 177 28 33 58 220 211 265 249 221 217 461 326
2 94 40 34 65 254 235 432 158 166 254 359 588
3 102 75 11 10 97 258 218 1,080 509 517 272 337
4 80 53 43 38 178 376 162 352 307 318 255 303
5 463 98 72 24 290 160 191 189 917 305 273 238
6 357 69 51 91 205 163 245 190 553 305 370 667
7 208 47 150 42 188 186 192 133 470 602 921 861
8 134 47 73 24 214 133 253 133 561 354 1,270 1,380
9 128 60 68 29 199 73 217 113 227 203 628 429
10 125 33 113 32 211 219 565 133 3,350 848 744 306
11 128 60 16 176 138 98 447 184 410 732 624 524
12 100 42 26 87 185 213 146 66 273 525 1,280 454
13 114 68 42 106 490 135 229 93 631 470 1,520 155
14 249 50 11 198 264 130 355 175 226 1,290 820 163
15 320 28 22 70 143 200 240 206 1,320 432 401 153
16 109 32 39 57 117 216 236 398 817 866 622 245
17 130 115 9.6 632 621 274 233 219 600 312 1,010 166
18 95 60 51 308 675 89 326 188 1,170 422 735 144
19 108 22 14 106 305 488 497 282 682 269 361 106
20 216 36 70 195 987 332 512 287 2,400 320 283 216
21 107 41 42 214 534 489 563 250 1,590 568 378 115
22 73 42 131 153 253 547 475 1,300 3,410 984 418 140
23 105 68 151 163 549 213 328 2,760 810 579 354 166
24 40 21 83 208 321 358 194 1,630 470 320 798 136
25 127 43 59 69 255 121 160 703 344 498 275 640
26 68 57 36 113 264 172 104 393 230 813 297 158
27 51 55 111 94 215 290 104 231 289 706 1,680 148
28 67 27 86 90 228 86 203 254 226 971 464 101
29 63 114 107 327 147 91 164 244 212 611 265 330
30 75   163 106 400 138 842 317 278 428 273 140
31 60   104   192   268 326   255   188