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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 09490500 BLACK RIVER NEAR FORT APACHE, AZ.


Gila County, Arizona
Hydrologic Unit Code 15060101
Latitude  33°42'46", Longitude 110°12'40" NAD27
Drainage area 1,232  square miles
Gage datum 4,345 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 1914-10-01 -> 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
1 352 392 1,050 977 699 165 48 260 248 349 115 122
2 327 336 1,070 988 631 157 47 197 253 529 139 121
3 231 395 805 980 603 146 47 191 235 251 138 141
4 274 364 719 963 578 139 46 194 210 165 125 134
5 309 396 694 943 581 131 46 220 172 150 133 171
6 322 342 777 937 566 123 46 246 173 143 124 181
7 491 335 755 952 523 113 48 220 144 161 144 208
8 814 350 747 969 492 108 47 194 138 143 126 215
9 415 379 810 959 468 103 49 150 137 127 108 185
10 283 444 790 977 455 98 50 171 177 115 105 236
11 485 582 810 1,000 433 94 53 208 178 105 118 233
12 412 697 970 1,000 405 89 60 188 163 107 171 180
13 289 627 1,240 1,020 385 85 57 170 164 103 177 184
14 257 682 1,070 1,000 385 83 61 178 159 97 136 164
15 265 1,050 995 973 378 79 61 202 160 93 124 140
16 283 812 1,040 960 351 73 64 190 149 87 125 146
17 549 602 1,070 956 322 69 68 197 134 106 136 145
18 474 519 990 966 305 66 69 246 117 104 137 432
19 387 571 974 984 289 63 76 272 105 105 120 544
20 273 880 998 962 276 60 72 272 101 338 123 484
21 319 694 991 934 264 58 88 208 97 268 115 329
22 475 697 1,070 923 254 57 94 208 100 164 112 336
23 295 649 1,100 908 243 54 82 188 99 136 107 395
24 319 587 1,060 864 229 52 92 246 110 133 134 275
25 285 547 1,060 831 214 50 100 218 104 166 186 287
26 288 583 971 801 203 50 110 192 95 161 149 339
27 378 542 989 777 194 48 177 187 91 136 138 293
28 822 595 974 761 187 47 217 172 92 135 119 484
29 579 549 996 770 183 47 232 165 102 142 110 602
30 567   1,010 737 177 48 241 158 159 123 117 626
31 473   979   173   249 212   118   457