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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", Longitude 110°10'26" NAD27
Drainage area 1,234.00  square miles
Contributing drainage area 1,234.00  square miles
Gage datum 3,954.01 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 1903-10-01 -> 2020-09-30)

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 28 34 23 16 10 5.2 38 274 79 52 14 21
2 23 26 34 16 12 11 38 222 72 47 12 18
3 23 22 30 15 9.7 14 56 252 76 56 12 22
4 23 29 27 15 9.3 7 39 231 53 28 12 20
5 24 27 28 14 9 7.1 36 269 76 20 13 18
6 29 22 26 14 8.7 5.6 76 298 82 19 13 38
7 30 24 24 14 8.6 5.1 69 259 70 16 17 25
8 29 26 25 14 8.6 5.5 43 253 75 82 16 19
9 29 23 23 13 8.5 5 50 366 72 195 14 18
10 26 22 25 13 8.4 5.5 74 270 97 73 14 21
11 31 22 23 13 9.1 5 79 199 101 37 14 27
12 36 22 23 13 8.6 4.9 64 216 106 56 22 22
13 27 30 23 13 8.1 5.6 69 215 74 41 15 19
14 29 29 23 13 7.9 4.9 123 311 65 22 15 19
15 34 27 23 13 7.7 7 120 218 40 18 15 19
16 27 39 22 12 7.6 4.5 110 255 37 16 15 18
17 26 31 26 12 7.7 5 140 168 42 22 25 19
18 101 26 22 12 7.5 5.8 170 194 87 17 16 25
19 111 25 22 11 7.3 6.3 121 186 120 20 15 121
20 45 25 22 11 6.6 5.5 155 191 61 22 14 95
21 33 24 20 11 6.5 9.8 110 192 33 15 14 77
22 30 26 19 11 6.4 14 172 122 45 16 17 54
23 27 23 19 11 6.4 16 143 126 46 95 20 56
24 26 21 18 11 6.2 20 204 148 38 50 18 52
25 27 20 17 11 6.3 19 171 109 48 18 32 50
26 31 22 17 12 6.2 7.1 180 118 60 15 23 48
27 29 21 16 10 6.2 7.9 243 105 307 14 17 49
28 43 20 18 11 7.7 8.4 218 105 244 15 39 106
29 28 18 16 10 5.8 46 245 100 57 15 49 60
30 31   17 10 5.7 33 360 96 24 17 41 51
31 52   16   5.5   258 69   15   50