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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 09426000 BILL WILLIAMS RIVER BELOW ALAMO DAM, AZ


La Paz County, Arizona
Hydrologic Unit Code 15030204
Latitude  34°13'51.9", Longitude 113°36'35.75" NAD83
Drainage area 4,633  square miles
Contributing drainage area 4,623  square miles
Gage datum 954.09 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 1969-10-01 -> 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 79 132 301 162 78 51 62 69 73 73 36 47
2 69 126 291 140 75 52 68 69 79 70 39 42
3 63 99 298 158 79 51 68 73 76 64 41 43
4 68 90 246 172 81 53 68 71 68 61 41 43
5 135 92 248 182 78 57 68 70 62 62 37 43
6 122 95 279 184 76 56 71 70 65 62 37 44
7 98 99 411 191 76 58 74 71 70 69 36 49
8 76 101 458 196 77 61 74 70 81 63 37 49
9 64 96 458 197 75 59 76 70 89 56 43 45
10 67 100 477 164 75 57 77 74 93 54 61 45
11 56 118 496 123 78 60 76 74 94 55 60 45
12 83 141 530 120 74 62 77 71 93 60 53 43
13 117 172 588 120 72 56 81 64 96 60 41 40
14 109 171 588 116 73 55 82 65 94 58 41 38
15 86 232 532 131 75 56 79 70 92 47 46 37
16 79 322 546 142 74 57 78 73 86 42 50 38
17 78 305 570 116 75 53 78 68 85 42 42 38
18 75 304 568 101 78 48 77 63 86 43 51 37
19 77 306 535 101 77 46 78 63 87 67 59 36
20 74 332 541 98 75 44 81 70 87 81 57 38
21 71 375 571 99 63 45 71 75 84 80 49 39
22 72 371 513 101 53 54 68 74 78 78 48 40
23 74 349 474 91 50 51 69 74 77 62 136 41
24 73 342 431 86 45 49 69 69 77 41 163 40
25 72 285 419 87 42 54 68 70 77 42 134 39
26 74 297 407 84 50 49 70 79 76 45 96 39
27 73 295 371 80 51 45 74 77 76 46 64 38
28 88 294 333 82 47 44 74 75 77 45 44 39
29 119 288 301 84 50 46 69 78 79 42 39 40
30 119   242 79 48 55 65 81 78 42 49 71
31 121   221   49   67 75   39   104