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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 50057000 RIO GURABO AT GURABO, PR


Gurabo Municipio, Puerto Rico
Hydrologic Unit Code 21010005
Latitude  18°15'30.56", Longitude  65°58'05.07" NAD27
Drainage area 60.2  square miles
Gage datum 150.0 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 1959-10-01 -> 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 73 57 55 49 109 115 172 93 96 147 169 151
2 67 49 37 46 97 122 168 116 94 164 180 200
3 58 47 34 46 67 133 132 162 132 204 184 212
4 59 45 34 42 73 118 106 106 230 166 187 140
5 86 48 45 39 100 124 175 88 371 153 251 112
6 110 59 53 47 115 103 130 86 533 418 285 167
7 75 55 39 30 74 112 115 72 203 417 295 273
8 58 43 41 80 88 87 109 94 195 228 355 289
9 57 39 45 37 90 91 108 77 138 429 368 199
10 61 41 42 35 103 136 149 189 519 249 245 400
11 61 42 30 79 105 101 167 95 177 238 239 212
12 61 39 48 43 86 111 91 113 159 187 337 145
13 64 42 37 44 138 114 123 116 302 178 330 105
14 84 41 30 80 124 97 116 107 132 282 208 103
15 105 48 30 43 183 148 122 199 166 207 234 89
16 81 69 30 35 99 169 109 147 312 282 175 96
17 63 59 29 226 204 191 99 129 267 176 247 80
18 59 43 29 73 320 122 149 110 662 180 221 77
19 53 38 27 48 125 161 204 101 460 142 150 71
20 69 44 30 56 191 135 161 101 797 123 129 81
21 60 41 26 79 318 144 119 260 292 179 143 67
22 60 39 52 69 136 175 138 296 332 298 179 72
23 52 35 49 89 150 113 135 351 198 226 163 78
24 49 32 35 68 128 97 94 354 147 227 295 82
25 53 53 32 46 121 75 79 170 148 200 228 124
26 55 44 37 53 159 93 76 133 123 304 139 86
27 51 40 35 46 179 105 80 243 132 287 434 95
28 47 40 36 58 196 75 86 148 139 256 171 84
29 55 43 67 112 112 111 74 160 174 198 144 99
30 50   52 73 172 130 238 234 144 186 171 86
31 52   60   125   100 289   157   100