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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 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 -> 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 9 12 14 11 90 66 89 7.4 26 8.5 36 9
2 9.5 23 12 15 56 86 548 9.5 10 10 28 9.8
3 11 38 12 16 21 70 260 13 11 8.9 82 40
4 14 173 76 16 31 178 359 7.6 84 36 23 20
5 9.8 45 35 66 59 93 259 8.2 46 20 25 18
6 12 24 18 24 138 56 288 6.8 41 17 30 11
7 11 18 17 17 26 74 68 31 39 9.3 13 12
8 9.6 16 13 22 36 31 37 11 155 52 14 17
9 15 14 15 9.8 18 44 29 6.3 166 93 23 14
10 15 15 13 11 17 75 49 6.2 69 31 14 11
11 12 15 14 13 32 177 24 5.1 43 22 9 9.4
12 11 15 37 11 15 134 14 6 27 20 9.3 9.6
13 9.4 12 34 12 50 90 10 8.7 17 29 8.4 13
14 10 13 58 13 51 50 9 6.5 22 88 12 9.6
15 24 13 26 14 95 45 35 6.9 24 21 23 14
16 24 11 36 13 43 30 88 98 46 19 113 11
17 15 9.3 32 103 24 36 35 261 57 193 78 9.9
18 26 16 14 48 34 43 28 20 24 505 38 11
19 11 10 12 29 43 42 16 34 14 51 19 47
20 9.1 30 23 15 74 29 14 23 16 41 22 98
21 8.9 15 14 39 42 36 106 19 16 18 14 164
22 34 19 11 12 103 239 39 21 51 40 119 124
23 14 19 11 34 37 168 17 42 25 100 50 34
24 22 25 9.3 48 69 42 42 18 12 140 28 20
25 24 19 9 48 330 39 57 16 12 95 18 14
26 26 24 9.6 28 51 27 24 8.1 36 34 13 13
27 45 16 10 13 121 17 24 7.5 16 21 12 13
28 18 14 42 18 46 83 14 6.4 13 14 19 15
29 20 13 26 58 61 122 12 9 18 10 14 11
30 13   16 29 66 74 10 9.5 12 80 9.8 14
31 15   23   74   8.4 70   31   11