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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
1 158 338 304 238 104 25 28 248 171 109 76 164
2 177 287 288 236 100 21 18 202 158 109 76 127
3 185 256 274 224 96 19 12 166 156 91 74 116
4 187 261 258 209 90 17 22 231 142 84 71 110
5 263 247 249 207 85 15 21 182 128 77 71 106
6 393 232 251 216 81 14 22 173 160 83 72 114
7 262 227 256 221 78 12 119 187 144 86 72 123
8 223 224 268 217 75 11 96 180 143 94 72 121
9 201 224 314 211 74 10 41 166 161 206 70 127
10 185 229 329 205 72 11 135 151 160 266 69 161
11 177 244 324 203 70 9.8 95 159 205 208 69 144
12 170 649 320 200 67 9.5 39 154 270 159 69 134
13 165 1,470 340 198 65 9 30 155 261 128 71 126
14 161 716 422 196 63 9.4 28 212 279 115 71 120
15 164 560 446 190 60 8.3 23 235 272 105 77 121
16 225 457 398 179 57 7.3 61 233 428 99 78 119
17 262 407 397 172 56 8.6 54 249 494 105 79 115
18 294 372 390 167 52 8.7 59 305 357 158 88 114
19 262 375 376 166 52 6.9 43 277 266 168 90 113
20 226 419 375 161 47 5.4 36 256 213 118 87 113
21 240 537 364 153 45 14 59 299 225 99 85 113
22 248 514 336 146 43 14 35 1,000 227 92 86 117
23 292 434 317 140 39 5.7 45 761 270 168 86 149
24 282 471 310 138 37 8.6 78 555 210 104 87 249
25 291 488 306 132 35 10 112 403 188 96 88 242
26 247 407 296 127 33 7.3 103 287 207 91 90 189
27 220 355 280 123 31 6.2 114 233 139 91 99 165
28 228 324 267 118 30 11 98 195 129 86 132 152
29 275 286 257 112 30 14 122 174 130 82 131 143
30 259   245 108 31 18 125 153 161 80 151 136
31 265   239   28   163 150   77   140