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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°15'45", Longitude 114°01'37" NAD27
Drainage area 5,337  square miles
Contributing drainage area 5,327  square miles
Gage datum 500 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 1988-10-01 -> 2023-09-30)

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 78 147 317 61 26 11 10 8.3 9.4 17 8.6 17
2 48 152 307 63 24 11 10 8.2 9.3 17 7.5 15
3 49 98 295 63 24 11 9 9.1 9.7 17 8.5 14
4 35 80 151 91 24 11 8.7 12 9.4 18 12 14
5 130 77 119 120 25 11 8.6 9.1 9.3 18 13 14
6 158 77 143 140 21 11 9.2 8.3 9.2 30 9.7 14
7 105 77 266 159 19 11 12 8.3 11 20 8.3 14
8 63 77 341 157 18 11 11 8.3 11 16 8.3 14
9 39 78 377 156 18 13 11 8.4 13 13 7.4 15
10 62 77 377 155 18 11 11 8.8 8.6 12 7.3 18
11 50 91 390 145 18 10 11 11 13 11 7.6 19
12 52 117 461 123 20 10 11 11 25 11 14 20
13 72 137 450 113 20 10 13 12 31 12 15 20
14 82 155 461 106 18 10 13 13 40 16 8 19
15 61 157 509 100 18 10 12 22 29 17 7.7 17
16 55 381 433 108 17 12 11 8.6 31 14 9.4 16
17 77 391 460 108 17 10 11 8.2 27 12 14 15
18 77 379 488 59 17 9.8 11 8.2 13 10 8.4 15
19 76 343 537 47 19 9.8 11 8.3 44 8.3 8.3 14
20 78 336 390 44 19 9.6 12 8.5 12 10 8.5 13
21 81 408 374 37 18 9.6 16 8.2 12 14 8.8 13
22 88 400 361 33 17 9.7 11 8.1 11 16 9.1 13
23 78 396 311 33 16 12 9.7 12 11 11 55 13
24 75 353 280 28 16 9.9 8.6 11 11 9.6 165 13
25 76 322 265 28 15 11 8.3 9.9 11 9 145 13
26 75 223 257 31 14 11 8.3 9.5 11 8.8 85 13
27 77 289 251 31 13 12 9.7 10 15 10 44 13
28 73 316 250 29 12 10 13 9.5 11 14 29 13
29 85 11 218 28 12 9.5 9.5 9.9 11 15 16 13
30 110   109 28 12 9.1 10 30 13 11 16 13
31 116   93   12   8.6 9.8   9.6   64