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USGS Daily Statistics for Arizona

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Welcome to the NWIS-Web for the Arizona Water Science Center


The majority of USGS Gaging Stations are funded though a cooperative program between the USGS other interested agencies.
Follow this link for information on the Cooperative Water Program with the USGS.

Arizona Water Science Center Home Page
Colorado Basin River Forecast Center (CBRFC) - provided by the National Weather Service, AHPS. CBRFC on an interactive map.
Threatened and Endangered USGS Gaging Stations in Arizona

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 09439000 GILA RIVER AT DUNCAN, AZ


Greenlee County, Arizona
Hydrologic Unit Code 15040002
Latitude  32°43'28", Longitude 109°05'57" NAD83
Drainage area 3,589  square miles
Gage datum 3,630.75 feet above NAVD88
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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 2002-10-01 -> 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
1 158 338 304 238 109 26 29 255 171 109 76 164
2 177 287 288 236 105 22 19 202 158 109 76 127
3 185 256 274 224 100 20 13 174 156 91 74 116
4 187 261 258 209 94 18 23 231 142 84 71 110
5 263 247 249 207 89 16 22 182 128 77 71 106
6 393 232 251 216 85 15 23 173 160 83 72 114
7 262 227 256 221 81 13 125 187 144 86 72 123
8 223 224 268 217 79 11 101 180 143 94 72 121
9 201 224 314 211 78 11 43 166 161 206 70 127
10 185 229 329 205 76 11 142 151 160 266 69 161
11 177 244 324 203 73 10 100 159 205 208 69 144
12 170 649 320 200 71 9.9 40 154 270 159 69 134
13 165 1,470 340 198 68 9.4 32 155 261 128 71 126
14 161 716 422 196 66 9.8 29 212 279 115 71 120
15 164 560 446 199 63 8.7 25 235 272 105 77 121
16 225 457 398 187 60 7.7 64 233 428 99 78 119
17 262 407 397 180 59 9 56 249 494 105 79 115
18 294 372 390 175 55 9.1 61 305 357 158 88 114
19 262 375 376 174 54 7.2 45 277 266 168 90 113
20 226 419 375 169 49 5.6 38 256 213 118 87 113
21 240 537 364 160 47 15 62 299 225 99 85 113
22 248 514 336 153 45 15 37 1,000 227 92 86 117
23 292 434 317 147 41 5.9 46 761 270 168 86 149
24 282 471 310 145 38 8.9 82 555 210 104 87 249
25 291 488 306 139 37 11 118 403 188 96 88 242
26 247 407 296 134 34 7.1 109 287 207 91 90 189
27 220 355 280 129 33 6.4 120 233 139 91 99 165
28 228 324 267 123 31 11 102 195 129 86 132 152
29 275 286 257 117 31 15 129 174 130 82 131 143
30 259   245 113 32 19 131 153 161 80 151 136
31 265   239   29   171 150   77   140