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USGS Daily Statistics for the Nation

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 2,109.60 feet above NAVD88
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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 -> 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
1 228 179 113 78 55 534 338 710 1,550 2,960 736 330
2 230 176 109 80 53 637 234 717 1,500 2,720 699 357
3 235 172 103 79 50 863 341 1,230 1,820 2,530 611 343
4 238 173 98 78 49 729 295 1,050 1,680 2,410 747 349
5 232 167 94 75 72 581 290 752 1,200 2,210 968 350
6 226 164 90 76 57 350 508 661 1,430 2,020 604 348
7 222 163 88 75 98 296 552 733 2,310 1,890 544 339
8 224 157 88 74 46 380 394 652 1,920 2,010 525 343
9 256 150 85 95 46 321 455 686 2,260 1,720 476 333
10 351 147 83 76 183 260 250 792 2,500 1,800 460 323
11 263 155 86 89 223 184 262 854 2,670 1,810 445 330
12 230 155 86 91 316 131 204 1,060 3,440 1,440 440 327
13 210 139 91 114 149 128 341 1,120 3,160 1,460 428 323
14 201 138 101 147 94 436 261 1,410 3,040 1,250 425 318
15 196 132 110 197 138 375 262 912 3,840 1,140 407 319
16 299 125 107 94 213 186 549 866 4,140 1,060 393 323
17 211 122 101 73 139 201 535 931 4,400 1,170 392 320
18 199 168 113 71 98 264 357 1,140 4,710 1,190 394 295
19 195 241 159 74 87 298 476 1,210 4,590 1,200 397 278
20 190 241 112 72 87 621 997 1,320 4,900 1,190 389 266
21 184 253 120 63 760 285 1,060 1,360 4,730 1,250 386 259
22 182 267 116 63 155 138 1,010 1,190 4,640 1,270 377 252
23 186 244 145 64 305 163 1,140 1,300 4,430 1,190 356 249
24 183 233 112 81 373 290 737 1,350 4,410 1,130 348 240
25 183 230 103 60 291 181 662 1,470 4,280 1,140 344 236
26 187 241 92 56 448 132 838 1,630 3,960 1,020 337 238
27 185 214 87 54 450 289 800 1,590 3,700 944 330 238
28 183 141 101 53 816 399 655 1,300 3,560 895 357 238
29 181 67 87 52 428 491 697 1,590 3,760 825 396 233
30 179   84 52 348 296 746 1,380 3,290 797 364 236
31 180   81   662   644 1,800   792   233