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USGS 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 -> 2020-09-30)

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 22 7.9 8.8 42 81 59 57 137 44 59 64 43
2 31 7.7 9 15 74 63 86 71 37 74 53 103
3 21 6.6 8.7 12 41 72 84 143 106 159 66 30
4 33 8.3 6.5 11 32 84 76 97 48 109 82 29
5 30 8.7 5.9 2.7 59 67 49 86 125 61 102 22
6 4.3 7.3 8.2 1.8 56 77 72 47 125 178 77 16
7 11 63 7.1 1.3 43 88 47 62 69 186 101 59
8 19 27 4.3 1.2 29 46 65 60 185 177 62 28
9 25 23 1.9 1.1 35 26 109 48 107 69 68 30
10 35 15 1.6 1.1 30 17 125 39 48 125 47 28
11 30 13 1.6 1 31 35 63 35 74 253 54 51
12 38 12 2.9 3.5 27 58 44 37 65 113 53 65
13 42 9.8 4 15 76 27 56 35 121 87 46 29
14 40 10 2.5 12 41 34 72 29 49 93 86 16
15 89 17 2.3 6.8 25 30 94 26 43 130 97 20
16 54 6.1 1.5 8.8 31 35 45 21 38 197 116 25
17 25 7.9 0.93 17 55 43 58 128 39 146 49 25
18 31 11 0.79 14 168 35 81 45 30 133 128 22
19 20 11 0.67 1.4 55 65 46 72 88 87 43 20
20 23 7.2 0.59 34 105 91 29 228 305 67 45 14
21 19 7.8 0.51 38 69 87 137 132 510 67 68 22
22 12 31 0.44 15 50 104 117 216 313 104 77 19
23 13 13 24 25 29 121 86 342 204 107 73 17
24 18 11 6.8 4.7 44 68 78 245 79 67 61 6.7
25 15 11 6.6 10 65 65 54 113 114 50 55 68
26 12 11 4.2 22 9.4 71 43 101 74 127 53 18
27 14 6.5 2.1 11 39 74 49 69 71 169 38 26
28 12 3.8 0.66 11 80 76 50 44 65 177 39 33
29 18 12 0.65 63 89 17 42 88 36 135 35 55
30 18   0.59 63 76 15 111 122 64 95 32 32
31 11   55   76   66 38   74   18