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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 08150000 Llano Rv nr Junction, TX


Kimble County, Texas
Hydrologic Unit Code 12090204
Latitude  30°30'15", Longitude  99°44'03" NAD27
Drainage area 1,854  square miles
Contributing drainage area 1,849  square miles
Gage datum 1,634.40 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 1915-10-01 -> 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
1 141 111 116 108 220 220 127 106 360 180 261 119
2 121 111 114 113 274 166 225 241 311 166 255 118
3 118 127 114 260 249 197 181 159 298 131 737 118
4 117 123 115 129 156 183 145 97 339 129 421 118
5 116 127 114 117 133 293 258 96 367 152 165 117
6 115 117 112 126 131 181 157 105 230 387 181 117
7 114 115 115 124 132 150 115 103 198 167 147 117
8 113 114 113 117 152 132 106 91 507 475 148 122
9 113 113 110 110 143 128 101 114 309 312 143 120
10 113 112 110 122 172 168 99 121 204 190 137 117
11 113 111 111 114 321 176 343 155 127 141 135 117
12 113 111 124 112 248 212 157 195 123 173 133 117
13 112 110 114 108 187 155 338 154 111 955 127 116
14 111 110 111 200 257 1,360 162 117 107 484 126 116
15 111 109 109 330 247 267 111 172 145 333 301 115
16 111 110 110 312 166 269 140 244 747 570 369 115
17 111 113 117 162 210 282 115 133 547 208 567 114
18 158 111 113 145 219 396 118 108 323 194 160 113
19 121 110 118 124 200 195 111 110 174 264 137 113
20 147 110 128 116 137 139 109 113 141 184 131 127
21 156 113 127 115 209 125 157 190 230 143 129 123
22 119 166 118 112 160 129 553 283 522 140 127 123
23 116 236 113 122 167 134 485 275 459 238 126 118
24 117 159 112 237 196 421 371 169 554 381 124 117
25 114 160 119 209 353 563 171 152 267 161 124 115
26 112 142 167 128 259 269 144 142 251 231 123 115
27 112 120 174 191 349 233 110 111 186 164 122 115
28 113 118 121 206 204 139 99 315 160 152 122 149
29 112 121 124 197 653 196 95 170 189 663 120 242
30 112   127 174 416 150 95 358 152 342 120 127
31 111   110   229   114 137   231   458