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USGS Daily Statistics for Texas

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Explore Real-time Water Data Using New Products from USGS TXWSC

View over 750 USGS real-time stream, lake, reservoir, precipitation, and groundwater stations in context with current weather and hazard conditions on both desktop and mobile devices.

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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 08181480 Leon Ck at IH 35, San Antonio, TX


Bexar County, Texas
Hydrologic Unit Code 12100302
Latitude  29°19'47", Longitude  98°35'02" NAD27
Drainage area 219  square miles
Contributing drainage area 219  square miles
Gage datum 573.49 feet above NGVD29
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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 1984-10-01 -> 2020-09-30)

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 9.6 13 15 12 37 69 99 8 29 8.6 40 9.5
2 10 25 13 16 33 93 610 8.3 11 11 30 10
3 12 38 12 17 19 74 289 11 12 9.7 90 44
4 15 190 84 14 30 192 400 6.9 93 40 25 22
5 10 49 38 69 61 101 289 6.4 51 22 27 20
6 13 26 19 25 152 59 104 6.1 45 19 33 12
7 12 19 18 18 28 81 47 34 43 10 14 12
8 10 16 14 23 39 34 37 12 172 57 15 18
9 16 14 16 10 19 49 24 6.7 182 103 24 15
10 16 15 14 12 17 83 36 6.6 72 34 14 12
11 13 15 15 14 34 197 19 5.4 45 24 9.5 10
12 12 14 41 12 15 149 13 6.5 29 22 9.7 10
13 10 12 37 13 27 100 9.9 9.5 19 32 8.8 14
14 11 13 64 14 51 55 8.9 7 24 14 13 10
15 26 13 28 15 103 50 38 7.3 26 17 26 15
16 26 11 39 15 44 33 98 109 50 13 126 12
17 17 9.4 34 114 24 40 38 290 63 213 87 11
18 28 17 14 53 36 48 30 22 27 561 42 11
19 11 11 13 32 47 46 17 37 16 56 21 51
20 9.8 32 25 15 68 32 14 26 17 45 24 108
21 9.5 16 15 10 42 39 118 21 17 19 14 182
22 13 20 11 9.8 112 264 41 23 56 44 132 137
23 10 20 10 31 40 186 17 46 27 111 55 37
24 12 26 9.3 48 74 46 46 20 13 155 31 22
25 13 20 9.3 51 349 43 63 17 13 106 19 15
26 26 26 10 30 44 29 26 8.1 40 37 13 14
27 50 18 11 13 131 19 27 7.5 18 22 13 14
28 20 15 46 19 47 90 15 6.4 14 14 19 17
29 22 14 28 13 63 135 13 9.6 19 10 13 12
30 14   17 23 67 81 11 10 13 88 10 15
31 16   25   79   9.1 78   34   12