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USGS Surface-Water 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 08206600 Frio Rv at Tilden, TX


Mcmullen County, Texas
Hydrologic Unit Code 12110108
Latitude  28°28'02", Longitude  98°32'50" NAD27
Drainage area 4,493  square miles
Contributing drainage area 4,493  square miles
Gage datum 212.66 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 1977-10-01 -> 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 82 60 61 58 168 331 395 118 100 128 113 44
2 76 59 59 70 134 315 467 168 103 90 108 50
3 75 60 54 87 101 291 478 189 82 64 123 43
4 78 108 50 91 84 580 670 154 50 66 127 40
5 109 165 47 91 85 673 891 136 39 75 96 38
6 151 133 47 103 99 576 914 105 53 80 70 38
7 111 134 49 96 107 506 855 85 40 62 64 37
8 90 124 52 91 101 492 809 101 55 50 66 37
9 75 129 104 89 100 666 869 113 187 50 71 36
10 66 109 133 92 100 719 903 85 684 66 78 36
11 60 88 101 92 110 651 672 155 693 143 85 35
12 57 76 80 101 83 485 537 163 605 225 88 36
13 55 66 70 108 76 359 355 116 532 225 79 37
14 54 60 78 90 100 286 228 75 464 252 75 37
15 53 57 79 72 110 325 254 59 348 258 85 36
16 53 54 69 113 163 485 230 61 248 221 91 36
17 61 52 65 94 188 671 263 64 153 262 77 36
18 70 51 66 135 370 588 299 55 103 258 78 35
19 73 49 69 99 492 518 349 46 116 200 102 35
20 58 47 72 83 409 384 241 42 117 183 124 36
21 50 45 82 81 289 350 236 59 172 190 108 50
22 50 45 102 90 206 329 274 118 209 236 128 103
23 50 47 98 98 133 253 239 187 165 313 119 94
24 49 55 67 92 82 230 203 148 115 360 96 70
25 49 59 59 83 78 246 158 107 85 259 73 71
26 49 49 59 100 92 240 144 174 85 192 59 212
27 62 51 61 111 95 348 245 280 115 161 55 297
28 63 53 66 120 128 622 373 231 133 153 57 181
29 71 109 71 138 174 541 301 257 156 187 53 128
30 66   62 182 297 398 193 198 227 209 47 102
31 60   54   339   142 112   152   89