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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 08171290 Blanco Rv at Halifax Rch nr Kyle, TX


Hays County, Texas
Hydrologic Unit Code 12100203
Latitude  30°00'20", Longitude  97°57'09" NAD83
Drainage area 391  square miles
Contributing drainage area 391  square miles
Gage datum 673.74 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 2008-10-01 -> 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 57 93 69 45 41 84 41 26 18 41 98 49
2 75 87 68 44 43 76 43 38 18 37 77 53
3 107 113 64 55 52 80 54 36 19 37 77 50
4 88 216 63 57 32 85 52 28 32 51 80 50
5 76 186 60 51 79 95 44 27 31 44 74 49
6 71 136 57 49 63 82 46 26 21 40 70 49
7 69 120 57 52 58 75 41 25 29 37 66 54
8 65 118 57 46 27 71 43 24 316 36 66 73
9 64 113 58 44 27 80 52 23 256 52 79 59
10 60 105 57 43 110 71 51 23 117 53 69 56
11 58 106 54 41 91 66 47 22 80 46 65 54
12 58 118 55 40 122 65 43 22 71 44 62 53
13 56 104 53 40 116 60 41 21 63 47 58 52
14 54 98 51 38 91 57 38 21 49 89 57 51
15 67 92 50 38 94 54 36 21 46 91 56 51
16 137 88 49 38 108 52 35 20 49 83 54 50
17 101 86 53 41 99 50 34 20 46 77 52 51
18 88 94 50 45 94 48 33 20 43 67 50 50
19 82 96 49 42 92 48 32 19 40 65 48 48
20 76 91 52 39 78 48 32 19 40 67 50 47
21 70 87 54 38 71 46 31 18 46 62 90 46
22 84 81 52 37 73 44 30 19 69 91 63 47
23 73 78 50 38 69 43 31 20 58 87 57 45
24 70 81 48 38 68 43 30 18 51 71 55 47
25 144 74 49 40 213 44 28 18 48 78 54 44
26 89 71 46 41 145 42 28 18 45 99 54 43
27 75 67 47 39 137 42 27 18 45 110 53 94
28 74 66 60 39 106 40 28 17 38 83 52 74
29 155 47 59 38 98 42 28 17 61 71 51 62
30 118   53 37 87 40 26 18 46 64 49 59
31 98   50   88   26 18   64   61