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USGS Surface-Water Daily Statistics for Puerto Rico

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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 50093120 RIO GRANDE DE PATILLAS BLW LAGO PATILLAS, PR


Patillas Municipio, Puerto Rico
Hydrologic Unit Code 21010004
Latitude  18°00'59", Longitude  66°01'25" NAD27
Drainage area 25.67  square miles
Contributing drainage area 25.6  square miles
Gage datum 137.79 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 2005-10-01 -> 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 19 6.6 7.3 35 68 49 53 141 43 58 68 55
2 27 6.4 7.5 13 63 53 74 63 35 63 58 92
3 18 5.5 7.3 9.7 35 60 78 117 87 136 59 25
4 28 7 5.4 9.1 27 70 75 84 39 89 80 24
5 26 7.3 4.9 2.2 50 57 51 75 102 68 114 18
6 4.6 6.1 6.8 1.5 48 65 68 44 114 160 105 13
7 10 65 5.9 1.1 37 75 58 52 71 159 104 54
8 17 41 3.6 1 25 40 79 52 158 149 88 31
9 22 32 1.6 0.94 30 22 96 49 91 66 120 30
10 33 14 1.3 0.92 26 14 106 50 41 102 114 24
11 29 12 1.3 0.86 27 29 65 42 60 205 125 44
12 36 11 2.4 2.9 22 48 49 37 51 106 139 55
13 38 9 3.4 12 63 22 53 33 94 84 81 25
14 36 9.1 2.1 10 34 28 62 27 38 87 81 14
15 76 15 1.9 5.6 21 25 77 22 37 113 109 17
16 47 5.8 1.3 7.4 37 29 38 23 36 171 139 25
17 24 7.3 0.77 14 58 35 49 109 37 131 80 26
18 29 9.9 0.65 11 145 29 67 42 310 129 121 24
19 20 9.6 0.56 6 52 54 39 62 200 92 36 21
20 21 6.6 0.49 37 87 76 26 184 263 71 41 15
21 16 6.9 0.42 36 57 73 110 125 423 74 59 21
22 10 26 0.37 12 42 87 94 190 259 96 71 17
23 11 11 20 21 24 101 70 283 174 95 98 15
24 15 9.4 5.6 3.9 37 57 64 211 69 56 94 6.8
25 12 9.4 5.5 8.9 55 55 45 95 92 42 63 58
26 10 9.6 3.5 19 7.9 59 36 107 61 106 53 16
27 12 5.4 1.8 10 33 62 41 80 58 235 42 23
28 10 3.2 0.55 9.7 67 63 43 51 56 162 45 30
29 15 12 0.54 53 74 33 36 87 34 132 36 51
30 15   0.49 53 64 25 88 109 53 97 44 31
31 8.8   46   64   83 42   83   16