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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 09400350 LITTLE COLORADO RIVER NEAR WINSLOW, AZ


Navajo County, Arizona
Hydrologic Unit Code 15020008
Latitude  35°00'42", Longitude 110°39'02" NAD27
Drainage area 16,192  square miles
Gage datum 4,863 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 2001-10-01 -> 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
1 163 207 299 444 83 5.9 25 836 137 66 20 38
2 162 159 370 401 70 5.8 46 684 201 38 11 60
3 87 139 499 324 59 5.7 39 509 173 188 8.3 42
4 99 117 480 329 51 5.8 16 422 118 349 9.7 46
5 197 180 402 366 41 5.7 8.4 499 78 179 88 160
6 125 181 357 374 35 8.9 27 415 44 302 27 52
7 140 135 364 350 31 8.9 20 429 43 246 22 56
8 234 112 404 298 25 7 15 534 163 300 15 176
9 190 112 404 296 21 5.9 12 301 146 175 13 418
10 143 137 383 312 19 5.4 39 239 205 143 11 217
11 121 154 359 338 17 5.2 45 182 472 62 12 130
12 145 288 476 354 16 5.4 19 269 526 34 15 108
13 142 678 668 415 14 5.2 36 349 224 22 13 57
14 126 439 809 462 12 5.5 120 182 212 15 11 60
15 100 450 747 319 11 4.9 208 246 256 15 15 60
16 78 730 729 293 10 5.1 151 255 136 81 12 39
17 67 451 748 267 25 4.8 177 183 93 325 16 41
18 70 352 685 249 13 4.8 122 241 45 161 13 72
19 81 441 591 247 11 4.7 85 354 56 99 17 73
20 74 536 553 242 9.6 4.7 131 265 122 86 16 61
21 70 317 498 216 9.1 4.7 112 285 66 59 21 35
22 113 262 549 207 10 4.7 134 321 286 67 71 26
23 119 327 855 185 21 33 194 261 592 33 158 79
24 102 419 750 168 14 45 324 211 344 42 108 158
25 124 310 664 165 11 8.6 589 134 105 20 33 109
26 138 323 549 168 9 5.5 440 232 48 13 31 64
27 138 292 471 148 7.8 17 724 213 30 22 23 41
28 346 278 438 123 7 71 599 128 156 17 21 39
29 786 238 393 104 6.6 54 589 113 219 30 27 30
30 411   360 94 6.5 45 636 86 150 16 62 688
31 352   409   6.2   707 145   15   379