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USGS Daily Statistics for the Nation

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 50051800 RIO GRANDE DE LOIZA AT HWY 183 SAN LORENZO, PR


San Lorenzo Municipio, Puerto Rico
Hydrologic Unit Code 21010005
Latitude  18°11'08.54", Longitude  65°57'41.21" NAD27
Drainage area 41.09  square miles
Gage datum 263.16 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 1989-10-01 -> 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 79 61 48 50 79 77 108 102 101 119 130 117
2 71 67 44 53 84 96 137 98 94 132 122 124
3 71 59 43 49 59 78 110 164 124 164 118 111
4 72 55 44 42 82 120 84 112 119 125 121 110
5 176 103 55 41 84 99 83 95 151 142 167 101
6 126 112 50 37 69 98 108 98 135 128 152 163
7 100 93 91 34 74 103 85 88 171 145 222 108
8 88 71 66 121 75 89 92 100 153 118 290 98
9 78 62 53 41 84 82 121 93 117 128 186 92
10 86 55 43 41 82 82 131 120 379 199 237 88
11 89 54 49 56 120 82 131 93 123 197 244 114
12 73 54 43 50 85 106 90 80 102 167 280 101
13 77 58 40 47 119 86 96 81 146 185 240 91
14 102 57 42 69 119 99 121 94 117 214 226 93
15 87 52 41 52 71 103 104 92 230 203 187 92
16 76 51 43 48 86 97 109 133 180 223 212 94
17 72 53 41 102 164 104 97 115 167 153 180 96
18 80 49 40 86 137 84 108 114 387 168 186 90
19 68 56 40 59 100 144 138 106 289 136 130 84
20 71 81 48 83 154 117 133 124 517 125 123 103
21 67 63 41 76 118 124 138 109 464 161 118 80
22 73 53 48 70 88 111 136 303 422 225 149 84
23 68 52 49 66 123 111 111 308 192 171 171 85
24 62 54 46 79 116 95 94 232 154 137 157 84
25 63 53 41 50 87 73 90 183 132 170 112 113
26 64 50 39 60 110 87 81 131 119 204 105 76
27 57 46 40 68 83 99 91 127 121 216 101 77
28 67 57 45 82 109 70 92 122 124 172 111 83
29 67 63 51 138 82 86 79 144 115 170 103 96
30 56   71 68 117 91 232 115 118 142 113 83
31 54   64   95   143 111   127   92