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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 08152000 Sandy Ck nr Kingsland, TX


Llano County, Texas
Hydrologic Unit Code 12090201
Latitude  30°33'27", Longitude  98°28'19" NAD27
Drainage area 346  square miles
Contributing drainage area 346  square miles
Gage datum 861.42 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 1966-10-01 -> 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 35 48 49 38 60 199 29 14 19 8.8 63 27
2 34 95 44 35 112 143 30 32 49 7.9 35 24
3 37 101 44 38 101 129 89 18 36 6.7 27 21
4 33 278 101 38 56 246 258 13 88 11 56 26
5 30 157 60 38 56 185 194 9.8 30 25 30 28
6 41 97 60 101 83 92 52 11 30 22 97 43
7 37 63 79 42 70 85 40 42 20 16 68 31
8 26 53 57 33 71 55 43 18 141 9.7 141 35
9 31 50 59 30 69 125 32 8 95 9.6 64 31
10 33 60 53 42 209 87 23 6.9 39 29 53 47
11 51 51 114 38 163 162 41 7.7 20 24 30 72
12 37 48 175 78 69 126 29 8.5 27 65 23 36
13 32 41 80 56 68 89 20 10 21 57 21 33
14 29 50 66 40 95 88 19 24 16 29 23 33
15 30 46 50 155 152 84 38 9.6 21 81 75 41
16 38 44 112 93 123 209 21 5.8 30 391 43 44
17 38 43 66 61 133 116 18 82 24 62 93 31
18 45 55 100 53 113 50 16 24 15 84 35 32
19 49 45 74 48 68 35 16 13 11 208 44 34
20 140 47 166 50 94 28 25 8.9 11 148 43 240
21 88 63 108 69 163 28 21 9.1 13 76 31 284
22 55 70 83 42 76 33 17 8.2 20 216 36 107
23 43 79 51 37 79 24 13 13 28 43 28 84
24 36 69 45 37 122 41 27 9.8 16 35 35 50
25 34 73 41 33 266 26 22 6.5 11 50 41 40
26 44 71 91 33 147 59 17 5.5 12 81 33 42
27 56 53 100 77 125 273 36 4.9 14 86 35 46
28 49 48 82 51 145 143 19 95 8.8 39 46 37
29 105 44 60 69 152 70 12 54 9.8 70 31 33
30 56   105 38 81 40 9.4 58 8.7 48 27 29
31 42   69   134   15 26   115   50