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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 08163500 Lavaca Rv at Hallettsville, TX


Lavaca County, Texas
Hydrologic Unit Code 12100101
Latitude  29°26'35", Longitude  96°56'41" NAD27
Drainage area 108  square miles
Contributing drainage area 108  square miles
Gage datum 186.42 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 1939-10-01 -> 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 33 16 31 97 96 20 3.8 110 3.8 66 19
2 13 31 13 11 93 218 43 3.7 31 3.5 9.5 13
3 17 61 16 18 104 178 39 3.5 9.7 3.1 16 24
4 10 98 54 17 134 334 20 43 7 14 202 9.8
5 15 59 19 77 65 71 19 5 5.5 11 44 55
6 33 68 32 55 29 82 69 4.5 4.7 8.1 9.5 81
7 20 21 21 87 40 78 27 6.1 4 9 11 38
8 25 18 11 150 27 58 14 7.3 9.3 5.8 29 80
9 12 14 17 44 20 30 8.9 5 11 7.6 26 11
10 16 27 36 46 72 50 24 3.1 51 25 11 18
11 38 63 18 51 215 72 16 2.3 40 40 8.1 58
12 36 45 13 114 259 143 9 2.6 200 31 14 41
13 19 27 22 44 272 218 8.4 2.1 202 49 8.5 29
14 32 33 10 73 110 60 14 3.8 36 74 6.7 30
15 19 23 87 129 46 32 11 3.4 15 156 5.5 56
16 17 86 28 77 48 19 8.9 2.4 13 132 11 16
17 30 40 24 63 158 26 6 2.1 29 14 27 20
18 95 63 52 108 173 145 4.5 2 13 106 20 24
19 67 17 31 55 227 46 5.3 2.7 24 69 24 23
20 33 27 34 161 67 24 11 20 26 9.6 9.2 47
21 39 68 36 92 100 27 4.7 2.6 128 8.5 8 90
22 48 89 25 77 92 12 4.7 1.9 32 37 44 116
23 43 85 34 65 79 20 4.9 6.6 19 9.2 13 62
24 127 58 35 58 170 59 5.3 8.5 13 18 218 12
25 46 50 18 96 90 50 3.8 5.6 25 55 63 12
26 44 46 12 40 66 33 7.9 36 30 18 33 24
27 35 21 10 95 141 40 3.5 216 17 8.7 17 22
28 17 14 28 38 89 9.4 4.4 141 8.1 6.5 10 9.8
29 35 7.4 34 49 68 34 9.4 26 14 77 12 14
30 22   38 44 26 551 2.6 70 9.1 15 11 27
31 26   37   38   2.7 913   222   27