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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 50092000 RIO GRANDE DE PATILLAS NR PATILLAS, PR


Patillas Municipio, Puerto Rico
Hydrologic Unit Code 21010004
Latitude  18°02'03", Longitude  66°01'57" NAD27
Drainage area 18.3  square miles
Gage datum 235 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 1965-10-01 -> 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 38 27 26 27 44 50 83 60 65 68 70 55
2 35 29 22 23 43 80 105 60 62 70 76 66
3 33 29 32 24 24 67 68 76 62 74 93 55
4 32 26 24 23 36 83 76 59 77 73 81 51
5 68 40 28 19 46 86 74 56 104 97 97 57
6 49 41 27 20 49 63 84 55 82 197 88 67
7 42 44 31 20 42 69 70 69 62 209 108 59
8 36 29 26 25 39 53 64 61 74 152 119 53
9 34 27 31 22 38 48 63 62 58 145 101 65
10 33 26 27 20 42 63 69 69 85 118 122 71
11 36 27 25 22 41 51 80 79 74 146 115 62
12 33 26 27 31 34 56 47 59 86 90 179 66
13 38 29 22 25 59 53 57 48 106 96 129 58
14 39 27 22 25 45 62 61 67 77 92 116 49
15 56 35 21 25 45 67 72 59 97 83 113 44
16 42 29 21 26 42 96 58 68 168 83 90 43
17 33 33 20 28 79 73 62 86 99 77 98 42
18 33 26 23 31 87 60 66 63 113 98 104 40
19 28 29 19 35 56 79 69 52 137 72 66 39
20 34 29 21 39 69 69 89 74 149 76 73 48
21 30 26 21 36 102 72 88 61 231 75 56 37
22 29 24 23 36 57 76 77 146 259 95 82 41
23 30 22 28 30 66 65 75 181 177 133 86 44
24 28 24 21 38 57 72 65 175 111 89 144 42
25 28 23 20 28 57 47 51 98 87 87 106 53
26 28 24 20 24 53 55 47 77 72 135 67 44
27 30 25 19 29 81 58 49 77 66 130 90 53
28 28 23 20 23 84 48 52 75 81 97 81 46
29 30 26 26 45 68 64 58 70 83 83 58 52
30 25   31 29 82 85 82 108 64 70 57 45
31 24   48   59   78 104   71   42