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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 09426620 BILL WILLIAMS RIVER NEAR PARKER, AZ


La Paz County, Arizona
Hydrologic Unit Code 15030204
Latitude  34°15'40.45", Longitude 114°01'44.33" NAD83
Drainage area 5,337  square miles
Contributing drainage area 5,327  square miles
Gage datum 501.62 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 1988-10-01 -> 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 73 137 293 83 41 17 10 8.3 9.3 16 8.5 16
2 46 141 284 84 39 17 10 8.2 9.2 17 7.6 14
3 46 91 272 84 38 17 9.3 9.1 9.5 17 8.5 14
4 33 75 139 108 37 17 9 11 9.2 17 12 14
5 121 72 110 134 35 17 8.9 9.1 9.2 18 13 14
6 146 72 133 152 29 16 9.5 8.3 9.1 29 9.7 14
7 97 72 245 169 26 17 12 8.2 11 19 8.4 14
8 59 72 314 168 24 17 11 8.2 11 16 8.4 14
9 37 73 347 165 23 19 11 8.3 13 12 7.5 14
10 58 72 347 164 23 17 11 8.7 8.5 11 7.5 18
11 47 85 359 155 23 17 11 11 13 11 7.8 19
12 49 109 425 133 25 17 11 11 24 11 14 19
13 67 127 414 124 25 17 13 11 30 12 15 19
14 76 143 425 117 23 15 13 13 38 15 8.2 19
15 57 146 469 113 23 12 12 22 28 16 7.9 17
16 52 351 400 120 23 13 11 8.5 30 13 9.5 16
17 72 361 424 120 22 11 11 8.2 26 11 14 15
18 71 349 449 75 22 10 11 8.2 13 9.9 8.6 15
19 71 316 495 64 24 10 11 8.3 42 8.2 8.6 14
20 73 310 360 60 24 10 12 8.4 12 9.8 8.7 13
21 76 376 361 54 23 10 15 8.2 12 13 8.9 13
22 82 368 449 50 22 10 11 8.1 11 15 9.3 13
23 73 364 372 49 21 12 9.5 12 11 11 52 13
24 70 326 337 45 21 10 8.6 11 11 9.4 153 13
25 71 297 291 44 20 11 8.3 9.7 11 8.9 135 13
26 70 206 267 46 20 12 8.2 9.3 11 8.7 79 13
27 72 267 259 47 19 12 9.5 10 14 10 41 13
28 69 291 257 44 18 11 12 9.4 11 13 27 13
29 79 12 227 43 18 9.9 9.4 9.8 10 14 16 13
30 102   127 43 18 9.5 10 28 13 11 16 13
31 107   112   18   8.5 9.6   9.5   59