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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 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 -> 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 16 16 14 29 98 41 30 12 12 44 32 16
2 15 16 14 22 64 227 20 11 13 33 21 18
3 27 82 13 21 36 127 17 10 14 19 17 83
4 27 117 14 22 45 86 62 10 30 146 16 102
5 21 54 23 31 33 38 39 11 21 47 16 78
6 16 30 18 22 25 23 51 9.8 16 32 22 42
7 15 23 16 20 25 22 95 10 37 25 23 34
8 14 20 14 25 19 16 41 15 244 17 17 64
9 18 19 16 21 20 60 26 12 47 22 20 28
10 24 18 29 23 19 16 29 9.4 55 29 21 19
11 18 42 29 21 28 13 25 9 32 19 17 98
12 17 57 32 24 26 11 23 8.8 29 17 14 15
13 18 25 56 29 38 11 16 8.9 25 15 14 15
14 22 27 52 33 48 26 16 9.8 18 133 13 17
15 92 26 24 25 49 33 24 12 22 54 12 14
16 79 21 19 19 77 13 23 27 35 40 11 13
17 41 18 20 29 82 17 21 87 30 27 11 16
18 43 55 20 56 80 108 20 40 23 18 11 17
19 27 29 18 36 84 23 21 39 19 17 12 20
20 22 40 48 24 82 20 55 30 19 18 33 19
21 19 30 50 24 44 28 71 48 18 15 42 15
22 27 21 50 31 27 40 39 32 22 20 25 15
23 43 24 28 26 19 24 31 22 19 20 32 16
24 84 44 22 37 127 18 44 18 15 17 27 17
25 87 22 22 79 90 17 56 16 14 31 21 21
26 51 17 21 66 81 20 73 14 16 63 25 17
27 43 15 32 44 48 17 31 17 29 62 20 15
28 30 14 39 32 30 22 25 16 22 36 23 17
29 22 12 106 24 43 48 22 13 38 21 24 15
30 19   44 54 36 32 19 12 45 23 18 15
31 17   57   36   15 12   72   17