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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 50055000 RIO GRANDE DE LOIZA AT CAGUAS, PR


Caguas Municipio, Puerto Rico
Hydrologic Unit Code 21010005
Latitude  18°14'33.70", Longitude  66°00'34.52" NAD27
Drainage area 89.8  square miles
Gage datum 164.04 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 1959-10-01 -> 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
1 161 114 124 99 179 243 255 205 211 240 273 259
2 152 118 98 99 227 261 323 220 182 246 272 311
3 137 107 89 110 135 222 224 319 231 276 307 279
4 135 108 86 85 165 238 248 206 273 239 276 243
5 260 152 108 73 175 236 287 192 319 303 435 193
6 240 180 98 73 183 214 243 199 728 510 338 309
7 173 144 132 73 148 199 190 149 311 576 416 310
8 150 113 108 172 202 160 173 167 285 342 436 268
9 146 109 106 92 206 144 202 192 231 503 429 262
10 140 97 123 92 189 220 255 319 508 316 423 357
11 150 102 84 94 212 198 246 218 268 380 380 314
12 129 94 116 96 151 212 193 194 267 295 495 254
13 132 119 96 100 246 178 273 180 360 262 363 192
14 162 98 86 107 344 193 237 321 232 338 324 183
15 213 129 81 95 229 236 262 230 322 312 314 181
16 201 128 79 91 175 292 225 284 397 392 360 174
17 144 128 74 149 358 330 206 235 324 324 407 164
18 138 102 83 145 466 223 302 203 683 328 360 164
19 124 92 76 123 240 276 343 187 470 239 231 156
20 140 119 87 135 316 236 258 228 694 218 239 189
21 132 103 73 146 338 256 264 282 512 297 243 146
22 116 91 90 166 270 269 276 509 558 325 333 151
23 122 86 101 163 318 187 247 609 395 470 323 156
24 112 85 86 165 203 173 196 495 279 357 481 169
25 113 90 81 115 185 138 165 346 262 426 272 257
26 113 105 83 106 214 192 160 232 212 534 273 176
27 113 98 94 111 309 198 187 440 233 501 473 218
28 112 92 84 109 351 194 181 287 211 450 297 187
29 123 98 113 216 246 290 166 294 285 317 259 210
30 111   131 134 248 282 348 397 212 278 283 169
31 106   135   220   233 379   282   190