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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 08128000 S Concho Rv at Christoval, TX


Tom Green County, Texas
Hydrologic Unit Code 12090102
Latitude  31°11'13", Longitude 100°30'06" NAD27
Drainage area 413  square miles
Contributing drainage area 354  square miles
Gage datum 2,010.82 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 1929-10-01 -> 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 19 19 18 18 18 22 15 25 22 17 22 21
2 19 26 19 18 19 19 15 23 16 17 21 21
3 19 19 19 18 24 22 37 21 40 100 22 20
4 19 19 19 18 22 30 16 13 29 58 21 20
5 19 19 18 22 17 19 15 13 40 40 21 20
6 19 19 18 20 17 18 43 13 20 48 21 20
7 19 19 18 18 17 17 18 13 21 20 21 20
8 19 19 18 17 17 19 15 13 55 19 25 20
9 19 19 19 17 270 29 15 17 28 63 21 20
10 19 19 18 17 59 17 14 14 26 29 21 20
11 19 19 18 17 49 16 14 21 20 18 21 20
12 19 19 18 17 46 17 14 38 15 24 21 20
13 19 19 18 17 47 21 14 15 18 280 21 20
14 19 19 18 17 27 16 14 14 18 40 22 20
15 19 19 18 38 25 67 16 23 274 21 21 20
16 19 19 18 22 18 29 21 14 27 29 26 20
17 19 19 18 19 22 53 16 45 285 87 44 20
18 19 19 18 17 63 53 36 119 32 127 21 20
19 19 19 18 17 24 22 20 17 21 30 21 20
20 19 19 25 18 18 17 102 25 20 21 21 20
21 19 19 29 18 17 23 58 15 48 20 21 20
22 19 20 18 18 17 17 30 13 100 20 25 20
23 19 24 18 31 21 17 341 35 35 22 24 20
24 19 19 18 20 21 22 27 21 39 80 21 20
25 19 19 19 22 50 16 15 15 20 34 21 20
26 19 19 20 126 34 15 14 13 257 26 21 20
27 19 19 18 53 47 16 13 14 54 21 21 19
28 19 19 18 28 19 16 13 40 25 25 21 35
29 19 19 18 19 23 23 13 17 20 23 21 25
30 19   19 28 40 16 13 21 18 22 21 20
31 18   18   23   13 20   25   22