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USGS Surface-Water 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 08185100 Martinez Ck nr Saint Hedwig, TX


Bexar County, Texas
Hydrologic Unit Code 12100304
Latitude  29°26'38", Longitude  98°10'08" NAD83
Drainage area 81.1  square miles
Contributing drainage area 81.1  square miles
Gage datum 500.11 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 2005-10-01 -> 2024-09-30)

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 16 16 14 30 103 43 31 12 12 46 32 16
2 15 16 14 22 67 239 20 11 13 34 21 18
3 27 82 13 21 38 134 18 10 13 20 17 83
4 27 117 14 22 47 90 65 10 22 154 16 102
5 21 54 23 32 34 39 40 11 17 49 16 78
6 16 30 19 22 25 23 53 9.7 14 33 22 42
7 15 23 16 20 25 23 100 10 38 26 23 34
8 14 20 14 26 19 17 42 15 256 18 17 64
9 18 20 17 22 20 63 27 12 49 22 20 28
10 24 18 30 18 19 16 29 9.3 57 30 21 19
11 18 44 30 16 29 13 24 8.9 33 20 17 98
12 17 60 34 23 27 11 23 8.7 30 17 14 15
13 18 25 58 29 40 11 16 8.8 26 15 14 15
14 22 28 54 34 49 27 16 9.7 18 140 13 17
15 92 27 24 25 50 35 24 12 23 56 12 14
16 79 21 19 20 81 13 24 27 36 40 11 13
17 41 19 18 30 86 18 22 92 31 27 11 16
18 43 57 17 58 84 114 20 41 24 18 11 17
19 27 30 17 37 88 24 22 40 19 17 12 20
20 22 41 50 25 86 20 57 31 19 18 33 19
21 19 30 52 25 45 28 74 50 18 15 42 15
22 27 21 51 32 28 40 40 33 23 20 25 15
23 43 24 28 26 19 24 32 23 19 20 32 16
24 84 46 22 39 133 18 46 19 15 17 27 17
25 87 23 22 83 95 17 58 16 14 31 21 21
26 51 17 22 69 85 21 76 14 16 63 25 17
27 43 15 33 45 50 17 32 17 30 62 20 15
28 30 14 40 34 31 22 24 17 22 36 23 17
29 22 13 111 23 44 50 21 14 39 21 24 15
30 19   46 56 37 34 18 12 47 23 18 15
31 17   59   38   14 12   72   17