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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 08189200 Copano Ck nr Refugio, TX


Refugio County, Texas
Hydrologic Unit Code 12100405
Latitude  28°18'12", Longitude  97°06'44" NAD27
Drainage area 87.8  square miles
Contributing drainage area 87.8  square miles
Gage datum 17.25 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 1969-10-01 -> 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 19 25 31 18 35 39 50 14 40 32 71 11
2 16 22 27 15 36 46 44 12 38 29 86 16
3 12 25 24 17 67 47 39 9 39 22 81 22
4 12 38 19 22 81 49 45 6.6 40 26 78 25
5 11 44 15 41 58 42 53 4.7 36 28 68 21
6 9.6 51 26 41 48 34 75 4.8 29 23 62 18
7 8.2 51 44 47 47 33 106 6.1 24 28 53 16
8 6.3 41 40 50 46 28 115 4 21 25 40 14
9 7.8 31 29 49 45 23 120 2.3 25 20 32 13
10 13 29 33 46 53 18 104 2.6 34 32 30 12
11 33 31 31 46 64 16 85 3.1 79 33 26 12
12 36 40 46 43 62 43 66 2.7 152 39 21 16
13 32 37 50 34 59 95 51 2.1 160 52 25 18
14 26 29 58 25 64 100 41 1.6 132 62 27 18
15 37 26 56 19 73 87 49 1.4 101 71 26 18
16 41 23 45 19 98 70 72 1.3 84 71 35 17
17 36 19 42 28 108 64 92 1.5 82 72 42 18
18 29 15 47 35 100 65 114 2.2 83 86 43 18
19 25 13 62 31 97 50 104 3.2 112 110 41 19
20 21 13 56 28 94 75 83 2.4 116 116 52 24
21 24 15 47 24 88 97 67 2.8 113 113 64 24
22 28 13 40 20 82 102 54 3.6 100 99 59 32
23 23 13 33 17 71 90 38 6.1 92 83 55 35
24 24 13 27 19 58 79 27 5.5 93 74 46 35
25 31 22 22 21 43 67 24 4.7 75 69 38 36
26 31 36 17 20 52 59 25 22 56 57 28 34
27 38 33 13 20 41 71 28 29 44 53 21 32
28 39 31 14 38 32 70 32 37 39 47 16 26
29 32 35 28 43 30 59 29 42 32 45 14 21
30 27   28 35 36 51 23 40 30 40 11 18
31 27   22   44   18 36   54   15