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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 08177700 Olmos Ck at Dresden Dr, San Antonio, TX


Bexar County, Texas
Hydrologic Unit Code 12100301
Latitude  29°29'56", Longitude  98°30'36" NAD27
Drainage area 21.2  square miles
Contributing drainage area 21.2  square miles
Gage datum 726.10 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 1967-10-01 -> 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 1.3 3.1 1.2 1.2 16 9 113 3.7 3.5 0.68 32 2.2
2 1.8 3.8 0.98 2.1 2 33 29 2.3 2.5 14 1.1 1.5
3 5.7 25 1.8 4.7 13 3.2 20 5.9 38 1.7 0.47 16
4 3.2 13 1.6 11 2.7 4.5 9.2 0.39 33 44 12 1.7
5 0.92 1.5 1.1 1.5 20 6 18 0.73 9.1 5.4 24 4.3
6 0.56 1.4 2.3 5.3 15 3.5 8.5 0.81 2.7 1.1 4.2 1.4
7 0.46 1.5 0.84 7.2 59 1.5 6.1 14 46 0.4 0.58 3.6
8 0.99 2.9 2.2 4.2 14 3.2 6.1 9 60 3.3 4.7 2.6
9 16 0.97 4.8 4.1 3.9 18 9.8 0.37 32 33 6.6 3.6
10 4.4 1.9 5.7 6 7.5 8.3 1.5 2 21 5 0.48 0.88
11 2.2 2.3 1.8 1.2 3.9 1.7 4.1 1.1 9.8 6.5 0.23 1.2
12 3.9 1.7 20 5.2 8.9 18 0.43 7.3 23 2 0.58 2.3
13 2 1.6 16 9.5 23 18 4.5 1.9 24 25 0.72 1.2
14 5.6 3.4 1.5 1 25 22 0.54 0.34 17 17 3.8 0.5
15 22 0.7 2.7 14 34 1.4 16 1.3 6.1 11 26 1.1
16 8.4 0.64 3.9 9.2 6.5 5.4 6.3 50 29 5.8 11 0.78
17 0.7 1.2 2.2 16 14 22 3.1 13 4.7 1.1 17 0.56
18 0.68 11 1.5 14 0.97 3.7 13 3.1 7.2 3.6 1.4 0.72
19 1.7 4.1 2.7 3.6 11 7 1.1 13 10 3.7 1.5 1.4
20 1.2 13 18 12 1.8 8.3 2.2 3.2 2.8 4.2 6.5 0.59
21 0.76 1.7 7.2 16 3.7 4 22 0.89 1.5 9.8 2 0.54
22 38 1.1 1.8 5.5 1.5 3.8 3.7 4.5 28 20 36 0.54
23 1.7 3.8 2.2 3.3 24 1.5 12 2.9 1.3 14 0.74 2.5
24 8.2 1.7 1.8 24 31 7.5 21 7.6 1.1 86 2.7 2.7
25 10 1 1.8 29 85 26 26 1.1 1.9 14 2.5 0.62
26 0.93 1.2 8.5 0.86 21 1.8 13 0.62 85 23 7.2 0.57
27 4.3 0.54 1.9 3.8 21 0.67 5.2 2.7 21 1.5 2.5 2
28 1.3 0.57 14 19 5.5 32 3.1 2.3 8.4 1.4 3.7 3.1
29 1.9 0.28 1.6 24 19 20 0.27 9 12 6.6 0.43 1.1
30 1.9   5.2 17 14 30 0.27 19 0.63 32 1.5 1.9
31 1.4   2.1   4.2   0.69 15   21   1.6