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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 50035000 RIO GRANDE DE MANATI AT CIALES, PR


Ciales Municipio, Puerto Rico
Hydrologic Unit Code 21010002
Latitude  18°19'27.95", Longitude  66°27'35.83" NAD27
Drainage area 134  square miles
Gage datum 140 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 1945-10-01 -> 2024-09-30)

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
1 209 243 171 153 335 280 103 117 201 322 339 266
2 203 195 134 171 350 239 109 118 201 301 367 338
3 180 195 131 168 292 185 104 115 302 295 468 350
4 164 229 127 181 227 209 104 106 263 277 423 327
5 234 225 189 176 327 202 107 102 288 279 394 268
6 250 262 166 197 353 202 103 100 414 490 350 278
7 198 195 163 155 455 193 100 97 369 846 365 229
8 183 152 137 212 485 233 106 112 267 549 543 244
9 196 154 142 246 594 171 113 100 286 660 650 329
10 180 142 128 272 408 167 100 105 609 408 365 436
11 243 160 117 277 372 161 94 99 276 472 282 581
12 278 149 202 304 341 161 101 161 257 403 397 319
13 200 147 152 280 544 146 115 116 380 346 459 344
14 214 143 134 239 474 124 109 108 244 374 419 263
15 230 135 119 245 368 128 114 112 274 410 371 243
16 246 143 109 224 364 153 146 139 523 465 413 227
17 198 133 115 316 668 175 112 165 343 484 360 198
18 179 117 153 374 994 183 149 129 692 405 353 242
19 196 128 165 313 374 133 141 123 527 365 338 206
20 198 139 163 381 410 120 121 126 1,220 320 342 206
21 197 166 134 418 357 119 102 141 677 362 370 199
22 231 139 144 271 267 135 108 317 715 369 346 186
23 185 124 137 368 332 122 99 443 405 491 356 180
24 163 118 127 298 355 117 119 284 356 422 337 194
25 160 124 145 308 310 117 102 206 353 382 350 217
26 164 117 213 275 291 145 94 169 286 475 299 189
27 172 136 241 209 284 128 90 222 310 475 497 200
28 161 154 196 240 342 132 96 233 298 444 306 231
29 155 117 193 307 262 122 89 187 304 441 259 200
30 157   215 329 225 112 206 329 375 504 268 168
31 177   155   216   142 451   433   170