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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 a esri powered 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 09519501 GILA R BLW GILLESPIE DAM, AZ (LOW-FLOW STATION)


Maricopa County, Arizona
Hydrologic Unit Code 15070101
Latitude  33°13'45", Longitude 112°46'00" NAD27
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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 1992-10-01 -> 2019-09-30)

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
1 168 1,000 1,740 742 399 28 4.9 14 15 42 54 98
2 483 1,010 1,610 822 375 24 6.5 12 16 42 56 94
3 565 931 1,740 698 346 18 8.5 8.8 17 43 59 92
4 604 849 1,940 641 310 20 8.7 5.6 14 43 59 107
5 704 687 1,810 648 280 20 6.3 6.2 12 44 55 103
6 905 694 1,920 658 242 18 4.2 9.0 14 47 55 104
7 1,120 814 3,290 618 121 19 5.1 12 17 65 59 104
8 1,520 871 2,540 600 95 18 7.2 10 26 59 57 121
9 6,700 1,130 2,230 624 218 19 11 9.9 116 51 52 119
10 3,200 1,610 1,550 635 261 20 8.8 9.0 119 45 46 124
11 3,900 1,600 1,420 488 344 16 13 30 77 40 43 125
12 3,380 1,590 1,280 423 307 15 11 22 52 37 43 111
13 3,110 1,080 1,170 383 254 9.4 9.5 14 40 40 46 105
14 3,330 1,090 1,270 570 279 5.6 9.6 10 29 44 47 100
15 3,310 1,570 1,230 564 300 6.7 18 9.1 25 62 49 103
16 4,050 3,610 1,240 439 294 6.1 10 10 33 50 91 90
17 3,800 2,410 1,280 302 320 7.0 13 9.6 23 47 83 97
18 4,550 1,770 1,290 261 241 12 13 6.7 20 52 80 100
19 4,310 1,450 1,190 240 62 13 19 8.7 18 54 72 97
20 3,570 2,250 1,230 228 37 12 15 18 18 60 67 95
21 4,320 3,590 1,190 195 31 12 11 21 24 56 63 96
22 4,250 3,040 1,140 183 32 11 7.4 24 25 50 70 99
23 3,380 2,790 1,170 184 23 8.3 6.1 47 22 55 73 124
24 2,990 2,440 1,090 177 23 7.4 6.4 23 24 54 73 138
25 2,510 1,970 907 155 28 5.9 7.3 12 31 52 74 138
26 1,950 1,870 851 134 134 8.7 24 13 31 52 79 123
27 1,400 1,680 869 117 191 7.6 9.6 14 32 64 85 97
28 1,150 1,700 906 107 188 6.9 7.8 23 28 59 86 105
29 968 285 766 263 140 5.3 11 40 42 52 83 105
30 882   674 307 51 4.3 13 51 31 52 90 121
31 887   653   34   16 22   53   124