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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
1 161 114 125 97 176 245 258 207 211 240 273 259
2 152 118 98 91 191 263 324 221 182 246 272 311
3 137 106 89 108 115 225 225 320 231 276 307 279
4 135 108 86 84 144 241 251 206 273 239 276 243
5 260 152 108 73 171 239 290 192 319 303 435 193
6 240 181 98 72 182 216 246 199 728 510 338 309
7 173 145 129 73 147 201 191 149 311 576 416 310
8 150 113 106 173 202 161 174 167 285 342 436 268
9 146 107 106 93 204 140 203 192 231 503 429 262
10 140 95 124 93 187 220 258 319 508 316 423 357
11 150 101 84 95 210 197 248 218 268 380 380 314
12 129 94 117 96 151 213 195 194 267 295 495 254
13 132 119 88 98 247 179 276 180 360 262 363 192
14 163 98 78 108 346 194 239 321 232 338 324 183
15 214 128 79 96 214 238 265 230 322 312 314 181
16 202 128 78 91 173 295 228 284 397 392 360 174
17 145 129 74 150 349 333 208 235 324 324 407 164
18 138 102 83 146 466 226 305 203 683 328 360 164
19 124 92 75 122 239 279 347 187 470 239 231 156
20 140 117 87 132 316 238 260 228 694 218 239 189
21 132 103 73 146 341 258 266 282 512 297 243 146
22 116 91 90 167 272 272 278 509 558 325 333 151
23 119 86 101 164 320 189 249 609 395 470 323 156
24 108 85 86 166 204 175 198 495 279 357 481 169
25 112 89 80 115 186 139 166 346 262 426 272 257
26 112 91 80 99 215 194 161 232 212 534 273 176
27 112 96 93 102 312 200 188 440 233 501 473 218
28 112 91 84 101 355 196 182 287 211 450 297 187
29 123 98 113 214 248 293 167 294 285 317 259 210
30 111   130 133 250 285 352 397 212 278 283 169
31 105   133   222   236 379   282   190