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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 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 -> 2025-09-30)

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 80 59 60 58 168 324 386 116 98 125 111 43
2 74 58 58 70 134 308 457 164 101 88 106 49
3 74 58 53 87 101 285 468 185 81 63 120 42
4 76 106 49 91 84 567 656 151 49 64 124 39
5 107 162 46 91 85 659 871 133 39 74 94 38
6 148 131 47 103 97 564 894 103 52 79 69 37
7 109 131 49 96 105 495 837 83 39 61 63 36
8 88 122 52 91 100 481 791 98 54 49 65 36
9 74 126 104 89 98 652 850 111 183 49 69 36
10 64 107 133 92 98 704 883 84 670 65 76 35
11 59 86 101 92 108 637 657 152 679 140 83 35
12 56 74 80 101 82 474 525 159 592 221 86 35
13 54 65 70 108 74 351 347 114 521 220 78 36
14 53 59 78 90 98 280 223 73 455 246 73 36
15 52 55 79 72 107 318 249 57 341 253 83 36
16 52 53 69 113 160 474 225 60 243 216 89 35
17 59 51 65 94 184 656 257 62 150 256 76 35
18 69 50 66 135 362 575 293 54 101 252 77 35
19 71 48 69 99 481 506 342 45 113 196 100 34
20 57 46 72 83 400 375 236 41 114 179 122 35
21 49 45 82 81 283 342 231 58 168 186 106 49
22 49 44 102 90 201 322 269 115 205 231 126 100
23 49 46 98 98 130 248 234 183 161 306 116 92
24 48 54 67 92 80 225 199 145 113 352 94 69
25 48 58 59 83 77 240 154 104 83 253 71 70
26 48 48 59 100 90 235 141 171 83 188 58 207
27 61 50 61 111 93 340 240 274 112 158 54 290
28 61 52 66 120 125 608 365 226 130 150 56 178
29 70 109 71 138 170 529 295 251 153 183 52 125
30 64   62 182 291 390 189 194 222 205 46 100
31 59   54   331   139 109   149   87