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USGS Daily Statistics for Texas

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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 08374550 Rio Grande nr Castolon, TX


Brewster County, Texas
Hydrologic Unit Code 13040205
Latitude  29°08'16", Longitude 103°31'28" NAD27
Gage datum 3,000 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 2006-10-01 -> 2020-09-30)

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
1 243 209 136 96 71 714 274 934 1,440 3,560 883 378
2 247 205 130 98 66 850 250 910 1,500 3,240 832 419
3 249 201 122 97 64 1,020 309 1,570 1,580 3,010 708 401
4 252 203 117 94 62 942 309 1,320 1,630 2,860 901 411
5 245 195 112 91 93 786 295 943 1,270 2,610 1,220 413
6 236 192 107 92 72 470 365 830 1,640 2,360 705 411
7 231 192 105 91 132 366 497 929 2,580 2,220 587 397
8 232 184 103 91 58 518 412 828 2,020 2,390 556 403
9 279 174 98 121 59 435 550 872 2,130 2,160 515 391
10 414 172 97 95 175 352 289 1,000 2,650 2,150 497 375
11 290 184 100 113 228 247 326 1,030 2,840 1,790 483 383
12 248 182 102 116 419 171 237 1,290 3,780 1,710 477 383
13 231 163 110 148 165 116 236 1,340 3,280 1,800 461 377
14 224 161 123 195 116 574 197 1,750 2,930 1,540 448 368
15 220 154 133 267 149 472 289 1,090 3,660 1,400 429 369
16 367 145 128 121 179 232 717 1,050 4,050 1,300 414 366
17 244 140 125 92 147 256 703 796 4,630 1,400 411 353
18 230 205 138 89 113 344 461 1,090 5,190 1,460 413 320
19 226 308 200 94 103 393 604 1,110 5,160 1,480 418 304
20 219 310 138 92 105 849 1,360 1,190 5,670 1,480 408 292
21 212 326 149 78 1,060 359 1,450 1,240 5,510 1,540 405 285
22 210 347 144 79 206 162 1,310 1,110 5,440 1,580 398 276
23 215 316 179 80 419 179 1,400 1,060 5,200 1,460 389 272
24 211 303 137 106 353 175 919 1,200 5,200 1,400 388 262
25 211 299 126 77 285 134 857 1,290 5,060 1,400 392 259
26 211 316 112 71 271 118 1,060 1,760 4,790 1,260 382 258
27 212 278 105 68 410 349 1,070 1,910 4,470 1,160 372 257
28 212 175 125 67 299 254 875 1,580 4,330 1,100 417 258
29 212 67 105 66 316 282 920 1,920 4,590 1,000 471 252
30 210   102 66 405 181 982 1,580 4,000 963 420 255
31 211   97   875   856 1,690   955   247