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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 08136000 Concho Rv at San Angelo, TX


Tom Green County, Texas
Hydrologic Unit Code 12090105
Latitude  31°27'16", Longitude 100°24'37" NAD27
Drainage area 5,542  square miles
Contributing drainage area 4,411  square miles
Gage datum 1,777.10 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 1930-10-01 -> 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 23 35 31 14 55 95 27 12 59 39 37 23
2 20 46 27 13 49 99 26 16 48 47 34 21
3 18 34 24 12 104 124 109 14 76 400 36 21
4 28 34 28 17 101 89 34 17 45 506 35 20
5 33 34 25 38 57 162 33 39 88 50 32 21
6 21 30 23 38 31 180 270 23 120 37 24 22
7 22 27 21 19 37 94 375 26 94 28 26 35
8 21 44 21 32 75 65 186 13 103 23 37 30
9 23 50 47 14 523 55 114 14 75 40 22 16
10 21 19 21 13 370 73 29 14 37 74 24 19
11 20 18 22 34 432 58 23 14 22 31 25 66
12 24 16 18 22 254 56 21 37 25 26 43 25
13 25 15 18 53 272 54 18 37 21 363 28 27
14 27 16 18 50 146 26 21 16 22 263 43 31
15 27 23 17 49 281 24 32 19 801 48 32 38
16 23 27 16 43 147 72 33 16 168 64 25 20
17 22 21 16 43 91 81 18 24 1,390 59 23 25
18 28 25 24 27 306 97 122 35 201 68 16 29
19 32 22 23 166 166 29 53 36 69 67 24 33
20 17 23 22 52 46 22 99 68 32 69 22 28
21 20 34 30 26 154 23 90 30 44 79 19 23
22 22 34 19 27 47 22 67 11 131 90 24 31
23 51 45 18 58 58 24 373 246 46 110 37 21
24 27 34 17 330 90 56 145 84 27 94 32 23
25 29 33 23 59 140 20 72 59 71 40 27 20
26 28 26 75 134 77 38 31 28 1,000 19 23 19
27 25 25 34 359 127 49 19 31 700 20 22 19
28 22 28 31 213 43 62 16 24 156 32 23 26
29 22 18 25 145 121 187 12 17 72 27 25 67
30 22   18 98 59 43 14 16 141 45 23 24
31 23   16   107   11 29   52   29