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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
1 209 243 171 153 335 281 103 117 201 322 339 266
2 203 195 134 172 351 238 108 118 201 301 367 338
3 180 195 131 169 275 182 104 115 302 295 468 350
4 164 229 127 182 218 201 103 106 263 277 423 327
5 234 225 189 177 328 199 107 102 288 279 394 268
6 250 262 166 198 316 201 102 100 414 490 350 278
7 198 195 163 152 310 193 100 97 369 846 365 229
8 183 152 137 173 444 233 105 112 267 549 543 244
9 196 154 142 233 556 171 112 100 286 660 650 329
10 180 142 128 273 389 166 100 105 609 408 365 436
11 243 160 117 279 363 161 93 99 276 472 282 581
12 278 149 202 307 335 161 101 161 257 403 397 319
13 200 147 152 283 542 145 115 116 380 346 459 344
14 214 143 134 241 473 123 109 108 244 374 419 263
15 230 135 119 248 368 127 114 112 274 410 371 243
16 246 143 109 226 363 149 146 139 523 465 413 227
17 198 133 115 312 671 172 112 165 343 484 360 198
18 179 117 154 324 1,000 181 149 129 692 405 353 242
19 196 128 166 275 373 132 141 123 527 365 338 206
20 198 139 163 374 411 119 121 126 1,220 320 342 206
21 197 166 134 422 357 118 102 141 677 362 370 199
22 231 139 144 273 267 135 108 317 715 369 346 186
23 185 124 138 364 331 121 99 443 405 491 356 180
24 163 118 127 285 356 117 119 284 356 422 337 194
25 160 124 135 292 308 117 102 206 353 382 350 217
26 164 117 204 272 291 145 94 169 286 475 299 189
27 172 136 242 210 283 127 90 222 310 475 497 200
28 161 154 197 241 341 132 96 233 298 444 306 231
29 155 117 194 308 261 122 89 187 304 441 259 200
30 157   217 324 224 111 206 329 375 504 268 168
31 177   156   216   142 451   433   170