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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 -> 2017-09-30)

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
1 189 32 19 65 243 230 287 231 245 187 503 367
2 101 45 22 74 246 257 503 170 174 262 360 658
3 103 78 11 11 101 291 239 1,230 569 551 279 354
4 81 53 49 40 157 424 182 393 314 326 230 328
5 514 110 81 16 318 180 210 199 956 306 273 258
6 394 77 57 98 217 184 286 174 457 283 352 746
7 226 53 169 47 207 210 211 132 289 617 980 937
8 141 53 82 26 233 140 246 149 418 393 1,290 1,560
9 144 56 48 32 216 70 156 127 226 180 537 478
10 127 31 127 35 231 204 584 140 3,770 954 718 335
11 121 67 9 199 149 101 508 203 447 742 461 594
12 95 43 21 98 199 240 160 62 305 550 1,260 514
13 107 70 41 120 538 152 248 100 701 486 1,640 150
14 257 34 8.5 223 298 148 357 197 244 1,400 827 176
15 350 30 21 79 154 234 275 233 1,450 320 370 158
16 107 8.8 44 64 132 252 268 451 925 237 574 270
17 134 119 11 707 696 314 254 151 670 158 1,040 161
18 94 67 41 347 761 79 371 175 1,280 364 779 157
19 112 24 11 111 326 560 569 308 710 253 339 108
20 225 39 34 220 1,110 367 589 207 598 314 262 215
21 119 38 36 217 592 556 642 190 1,610 585 374 130
22 75 43 142 170 277 633 546 1,440 3,590 1,090 417 159
23 92 48 103 183 620 156 377 3,080 862 626 232 173
24 40 19 81 229 355 354 205 1,820 464 323 848 148
25 113 25 40 78 253 137 150 787 320 544 279 710
26 68 63 40 117 289 186 94 438 245 906 312 174
27 29 47 126 106 242 162 100 230 289 737 1,910 158
28 61 26 97 101 229 84 235 242 212 1,080 506 96
29 44 127 110 190 145 99 186 190 215 608 253 340
30 60   184 120 400 161 312 317 245 461 298 148
31 41   117   206   219 334   256   208