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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 19 - 20 years 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 1,050 1,830 781 420 28 4.9 14 15 42 54 98
2 483 1,070 1,690 865 395 24 6.5 12 16 42 56 94
3 565 980 1,830 734 364 18 8.5 8.8 17 43 59 92
4 604 893 2,040 675 326 20 8.7 5.6 14 43 59 107
5 704 723 1,900 682 295 20 6.3 6.2 12 44 55 103
6 905 731 2,020 693 255 18 4.2 9.0 14 47 55 104
7 1,120 856 3,460 650 127 19 5.1 12 17 65 59 104
8 1,520 916 2,670 631 100 18 7.2 10 26 59 57 121
9 6,700 1,190 2,350 657 230 19 11 9.9 116 51 52 119
10 3,200 1,700 1,620 668 275 20 8.8 9.0 119 45 46 124
11 3,900 1,690 1,490 514 362 16 13 30 77 40 43 125
12 3,380 1,670 1,350 446 323 15 11 22 52 37 43 111
13 3,110 1,140 1,220 403 267 9.4 9.5 14 40 40 46 105
14 3,330 1,140 1,320 600 279 5.6 9.6 10 29 44 47 100
15 3,310 1,650 1,240 594 300 6.7 18 9.1 25 62 49 103
16 4,050 3,800 1,230 462 294 6.1 10 10 33 50 91 90
17 3,800 2,530 1,240 318 320 7.0 13 9.6 23 47 83 97
18 4,550 1,860 1,270 275 241 12 13 6.7 20 52 80 100
19 4,310 1,520 1,200 253 62 13 19 8.7 18 54 72 97
20 3,570 2,370 1,250 240 37 12 15 18 18 60 67 95
21 4,320 3,770 1,230 206 31 12 11 21 24 56 63 96
22 4,250 3,200 1,190 192 32 11 7.4 24 25 50 70 99
23 3,380 2,940 1,220 194 23 8.3 6.1 47 22 55 73 124
24 2,990 2,570 1,150 186 23 7.4 6.4 23 24 54 73 138
25 2,510 2,080 953 164 28 5.9 7.3 12 31 52 74 138
26 1,950 1,960 896 141 134 8.7 24 13 31 52 79 123
27 1,400 1,770 915 123 191 7.6 9.6 14 32 64 85 97
28 1,150 1,790 954 112 188 6.9 7.8 23 28 59 86 105
29 968 285 806 277 140 5.3 11 40 42 52 83 105
30 882   709 323 51 4.3 13 51 31 52 90 121
31 887   687   34   16 22   53   124