Warning: Javascript must be enabled to use all the features on this page!


Page Loading - Please Wait...

Click to hideNews Bulletins

USGS Daily Statistics for Texas

Click to hide state-specific text

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 08171350 Blanco Rv at San Marcos, TX


Hays County, Texas
Hydrologic Unit Code 12100203
Latitude  29°52'46.24", Longitude  97°54'38.71" NAD83
Drainage area 436.0  square miles
Gage datum 542.97 feet above NAVD88
Output formats
HTML table of all data
Tab-separated data
Reselect output format

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 2014-10-01 -> 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 60 58 42 33 75 521 69 11 32 25 187 35
2 83 56 41 41 61 563 63 9 30 24 103 32
3 195 61 40 39 67 498 60 5.6 29 24 75 40
4 139 70 39 42 440 424 57 20 21 24 86 47
5 106 62 43 52 156 411 53 17 18 21 78 50
6 89 56 42 46 107 363 49 4.3 17 20 71 52
7 83 52 41 48 95 315 47 3.7 16 18 78 59
8 78 46 40 42 307 284 46 3.1 13 17 78 88
9 71 49 41 35 515 256 45 3.3 73 17 78 72
10 68 45 53 30 206 233 43 2.7 68 16 75 66
11 65 44 53 35 169 209 43 2.4 30 16 72 63
12 66 41 54 104 203 190 53 2.4 19 15 67 62
13 64 40 54 50 228 173 47 2.2 8.4 17 62 70
14 62 41 55 44 229 193 38 2.5 4.6 523 53 80
15 59 43 51 38 183 174 36 9.2 3.9 90 49 70
16 69 41 50 34 239 137 34 57 3.4 64 46 64
17 81 40 51 34 557 121 33 47 11 70 45 62
18 95 38 50 69 501 111 31 38 16 58 41 60
19 99 38 53 65 555 114 28 26 6 51 39 63
20 89 100 50 62 434 110 31 23 3.6 50 34 57
21 81 89 49 50 260 104 21 36 3.1 47 28 54
22 92 61 48 74 230 127 21 33 25 41 26 52
23 86 57 46 55 209 109 20 30 39 38 25 51
24 83 54 48 48 6,050 94 19 25 27 38 25 52
25 83 46 46 68 820 94 18 23 22 45 24 51
26 81 46 42 75 1,370 87 21 28 130 69 24 50
27 72 45 40 74 490 85 29 82 81 47 25 116
28 67 43 76 72 458 90 24 70 40 40 25 119
29 65 5.4 76 67 580 104 16 46 31 34 38 75
30 61   58 69 429 79 15 40 27 4,860 40 67
31 59   49   454   13 36   457   65