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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 08446500 Pecos Rv nr Girvin, TX


Pecos County, Texas
Hydrologic Unit Code 13070001
Latitude  31°06'47", Longitude 102°25'02" NAD27
Drainage area 37,300  square miles
Contributing drainage area 29,560  square miles
Gage datum 2,284.51 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 1938-10-01 -> 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 54 48 41 34 30 62 44 28 34 87 87 55
2 54 47 41 33 33 67 43 31 34 96 89 54
3 53 48 42 33 34 68 42 33 34 99 92 54
4 53 49 41 33 35 66 42 33 39 168 96 54
5 52 49 40 32 34 64 45 39 40 294 102 53
6 52 49 39 31 34 65 44 34 42 277 105 54
7 52 50 39 30 30 70 41 30 44 245 104 53
8 52 50 40 30 32 70 49 29 44 214 104 53
9 52 49 40 32 36 72 48 30 50 194 107 54
10 52 48 41 31 36 87 45 29 54 186 107 54
11 52 47 42 31 36 104 39 33 56 183 107 55
12 51 47 40 32 38 106 37 32 50 199 106 56
13 51 47 38 32 38 111 36 30 48 197 104 57
14 53 48 37 32 35 106 37 29 45 197 98 57
15 55 47 37 38 31 117 38 28 47 205 92 56
16 57 46 37 35 32 113 37 28 46 209 87 56
17 57 46 37 31 33 109 33 28 45 189 82 56
18 57 45 38 30 32 105 40 28 44 171 77 56
19 55 44 38 31 29 102 32 27 65 155 76 55
20 54 44 39 32 28 96 30 26 54 147 74 55
21 53 44 37 30 32 84 29 26 58 141 68 55
22 53 44 37 29 31 63 30 28 55 135 61 55
23 52 44 38 30 32 56 37 30 57 124 59 56
24 52 43 57 30 32 50 38 27 60 109 56 56
25 51 43 43 35 45 45 34 27 59 88 56 56
26 51 42 38 53 61 43 35 27 56 81 56 56
27 51 42 37 27 56 40 35 27 85 81 55 56
28 51 41 40 27 54 40 34 29 69 84 55 55
29 50 37 35 29 52 43 32 32 65 84 55 55
30 49   34 29 53 44 29 34 77 86 55 54
31 49   34   59   28 32   86   55