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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 09402500 COLORADO RIVER NEAR GRAND CANYON, AZ


Coconino County, Arizona
Hydrologic Unit Code 15010001
Latitude  36°06'05", Longitude 112°05'08" NAD27
Drainage area 141,600  square miles
Contributing drainage area 137,641  square miles
Gage datum 2,418.70 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 1922-10-01 -> 2024-09-30)

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 9,890 10,600 10,800 12,900 20,000 30,400 25,000 15,300 13,100 11,000 10,100 9,690
2 9,320 10,600 10,600 12,900 20,000 31,000 24,500 14,800 12,400 10,200 10,300 10,400
3 10,500 10,600 10,900 13,000 20,100 31,400 23,900 14,700 11,800 10,000 10,300 10,400
4 11,000 10,500 11,000 12,900 20,600 31,700 23,000 14,500 11,700 10,000 10,300 10,400
5 11,000 10,300 11,100 12,800 21,000 31,600 21,600 14,400 11,600 9,790 10,300 10,600
6 10,800 10,400 11,200 13,300 21,700 32,000 21,600 14,500 11,700 10,200 10,400 10,600
7 10,600 10,400 10,900 13,500 22,600 31,900 21,500 14,800 11,600 10,400 10,500 10,700
8 10,400 10,300 10,800 13,900 23,400 31,600 21,100 14,900 11,600 10,100 10,600 10,600
9 10,700 10,300 10,800 14,100 23,900 31,500 20,400 14,800 11,600 9,880 10,400 10,600
10 10,600 10,700 10,600 14,200 24,100 31,600 20,000 14,900 11,600 9,830 10,300 10,600
11 10,600 10,800 10,600 14,800 24,500 31,600 19,600 14,700 12,000 9,900 10,600 10,800
12 10,500 10,600 10,700 15,200 25,100 31,600 19,200 14,600 11,900 9,840 11,000 10,900
13 10,700 10,500 10,900 15,300 25,100 31,800 18,700 14,600 11,900 9,800 10,900 10,800
14 10,400 10,400 11,100 15,300 25,500 31,800 18,400 14,500 12,000 10,400 11,000 10,700
15 10,300 10,600 11,200 15,500 25,800 31,700 17,900 14,300 11,900 10,800 10,700 10,500
16 10,400 10,600 11,300 15,500 26,100 31,300 17,500 13,900 11,500 10,800 10,400 10,500
17 10,400 10,900 11,300 15,700 26,500 31,300 17,200 14,000 11,400 10,700 10,100 10,400
18 10,600 10,800 11,200 16,000 27,100 31,200 17,000 13,900 11,500 10,400 10,100 10,400
19 11,000 10,700 11,000 16,400 27,300 30,800 16,600 13,900 12,000 10,100 10,200 10,500
20 10,900 10,700 11,100 16,900 27,400 30,300 16,300 13,700 11,700 9,890 10,500 10,400
21 11,000 10,900 11,100 17,200 27,600 29,700 16,000 13,600 11,500 9,970 10,900 10,400
22 10,700 10,900 11,000 17,500 27,700 29,300 15,900 13,400 11,400 10,000 10,900 10,500
23 10,700 10,900 11,400 17,700 28,100 29,100 15,700 13,500 11,300 10,400 10,600 10,400
24 10,500 10,900 11,700 18,400 28,600 28,900 15,500 13,700 11,300 10,400 10,200 10,100
25 10,700 10,800 11,600 19,300 28,900 28,400 15,200 13,600 11,300 10,200 10,000 9,590
26 10,500 10,800 11,800 19,900 29,000 27,700 15,100 13,300 11,400 10,100 9,790 8,360
27 10,500 10,800 12,200 20,100 29,200 27,100 15,000 13,200 11,200 9,790 9,720 9,380
28 10,600 10,700 12,500 19,900 29,200 26,400 14,700 13,400 11,300 9,820 9,880 10,300
29 10,500 10,400 12,600 20,000 29,500 25,900 14,700 13,400 11,100 9,740 9,470 10,300
30 10,700   12,900 20,000 29,900 25,400 15,200 13,300 11,100 9,680 9,660 10,400
31 10,700   12,900   30,000   15,200 13,200   9,910   10,300