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USGS Daily Statistics for the Nation

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 09486500 SANTA CRUZ RIVER AT CORTARO, AZ


Pima County, Arizona
Hydrologic Unit Code 15050302
Latitude  32°21'04", Longitude 111°05'38" NAD27
Drainage area 3,503  square miles
Gage datum 2,100 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 1939-10-01 -> 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 78 46 99 34 29 26 40 159 83 281 32 47
2 49 41 106 42 29 27 35 175 52 550 32 35
3 42 43 97 35 28 27 34 123 106 256 31 36
4 52 92 85 34 29 27 41 124 57 84 32 39
5 87 77 92 32 28 27 38 103 60 54 33 59
6 76 55 54 32 28 27 45 128 92 58 35 63
7 76 53 43 29 27 27 67 129 80 44 73 42
8 106 55 46 29 27 27 74 108 116 39 44 38
9 87 66 43 29 27 26 47 159 46 130 36 39
10 47 52 42 29 27 27 39 180 208 197 35 54
11 165 52 42 29 27 27 65 157 95 49 39 67
12 144 104 34 29 27 27 57 122 78 49 49 42
13 107 70 38 29 27 27 83 180 71 38 41 45
14 70 61 56 29 27 27 86 280 50 34 34 40
15 57 152 63 29 28 27 156 127 77 28 34 63
16 76 76 47 30 28 31 115 127 62 30 37 64
17 132 54 38 29 28 27 143 119 35 31 37 66
18 226 63 40 29 28 27 70 95 50 31 35 171
19 402 48 41 30 28 26 85 118 53 75 38 259
20 164 58 37 31 28 26 148 161 61 58 33 196
21 94 46 32 29 28 30 122 146 41 42 47 145
22 67 74 51 28 28 40 168 75 49 63 35 134
23 51 56 65 29 28 31 236 246 55 122 36 157
24 44 40 35 29 28 30 207 120 82 68 44 85
25 81 41 36 28 28 32 201 79 72 35 78 59
26 98 38 33 29 27 34 111 94 113 32 36 42
27 63 35 30 28 28 28 83 66 44 38 33 47
28 77 41 32 28 27 32 136 68 41 35 32 142
29 46 30 38 28 28 33 196 45 46 38 41 47
30 74   36 28 27 38 214 47 78 42 35 54
31 103   33   26   386 54   39   121