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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 09471000 SAN PEDRO RIVER AT CHARLESTON, AZ


Cochise County, Arizona
Hydrologic Unit Code 15050202
Latitude  31°37'33.39", Longitude 110°10'30.37" NAD83
Drainage area 1,234.00  square miles
Contributing drainage area 1,234.00  square miles
Gage datum 3,956.76 feet above NAVD88
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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 1903-10-01 -> 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 27 33 22 16 9.8 5.1 38 267 78 50 13 20
2 23 25 33 15 12 10 37 216 70 45 12 18
3 22 21 29 15 9.5 13 54 244 73 54 12 21
4 22 28 26 15 9.1 6.8 38 234 51 27 12 19
5 23 26 27 14 8.9 6.9 36 259 73 19 13 17
6 28 21 25 14 8.6 5.4 73 286 79 19 13 37
7 29 23 23 13 8.4 5 66 250 67 16 17 24
8 28 25 24 13 8.4 5.3 41 251 73 79 15 18
9 28 22 22 13 8.3 4.8 47 380 69 187 14 18
10 25 21 24 13 8.2 5.3 71 263 93 70 13 21
11 30 22 23 13 8.9 4.8 75 201 97 35 14 26
12 35 21 22 12 8.4 4.8 61 224 103 54 21 21
13 26 29 22 12 7.9 5.4 66 210 72 39 15 18
14 28 28 22 13 7.7 4.7 118 315 63 21 14 18
15 33 26 23 12 7.5 7 117 221 39 17 15 18
16 26 38 21 12 7.4 4.4 107 253 36 15 15 17
17 25 30 25 11 7.5 4.9 137 172 41 21 24 18
18 97 25 21 11 7.3 5.6 163 199 83 17 16 24
19 106 24 22 11 7.1 6.1 118 183 115 19 14 116
20 43 24 21 11 6.5 5.2 152 187 59 21 14 91
21 32 23 19 11 6.4 9.4 110 185 31 15 14 74
22 29 25 18 11 6.3 14 167 125 44 15 16 52
23 26 22 18 11 6.2 15 139 126 44 91 19 54
24 25 21 18 10 6.1 20 195 164 37 48 17 50
25 27 20 17 11 6.2 18 169 131 46 17 31 48
26 30 21 17 11 6 6.8 176 116 58 14 22 46
27 28 20 16 9.8 6 7.8 239 103 294 14 16 47
28 42 20 17 10 7.5 8.1 213 104 233 14 37 102
29 27 17 16 10 5.7 44 237 97 54 14 47 58
30 30   16 10 5.6 32 348 94 24 16 40 49
31 50   16   5.3   248 67   14   48