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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 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 103 - 106 years of record in, ft3/s   (Calculation Period 1903-10-01 -> 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 28 34 23 16 10 5.2 39 276 80 52 14 16
2 23 26 34 16 13 11 38 224 73 47 12 16
3 23 22 31 15 9.7 14 56 255 77 56 13 21
4 23 30 27 15 9.3 7.0 39 233 54 28 12 19
5 24 28 29 14 9.1 7.1 37 272 76 20 13 18
6 29 22 26 14 8.7 5.6 77 301 83 20 13 39
7 30 24 24 14 8.6 5.2 70 262 70 16 17 25
8 29 26 25 14 8.6 5.5 43 256 76 82 16 19
9 29 23 23 13 8.5 5.0 50 370 72 197 14 18
10 26 22 25 13 8.4 5.5 75 272 98 73 14 21
11 32 23 24 13 9.1 5.0 79 201 102 37 15 26
12 37 22 23 13 8.6 5.0 64 218 107 57 23 21
13 27 30 23 13 8.1 5.6 69 217 75 41 15 19
14 29 29 22 13 7.9 5.0 125 314 65 22 15 19
15 35 27 23 13 7.7 7.1 121 220 40 18 15 18
16 27 40 21 12 7.6 4.5 111 257 38 16 15 18
17 26 32 26 12 7.7 5.1 141 169 43 22 26 19
18 103 26 22 12 7.5 5.9 172 195 88 18 17 25
19 113 25 21 12 7.3 6.4 122 187 121 20 15 123
20 45 25 21 11 6.6 5.5 157 193 62 22 14 96
21 34 24 20 11 6.5 9.8 111 194 33 16 15 79
22 30 26 19 11 6.4 15 174 124 46 16 17 55
23 27 23 18 11 6.4 16 144 127 46 96 20 57
24 26 22 18 11 6.2 20 206 145 34 45 18 53
25 28 20 17 11 6.3 19 173 109 43 18 32 50
26 31 22 17 12 6.2 7.1 181 119 58 15 23 49
27 30 21 16 10 6.2 8.0 246 106 310 14 16 50
28 44 21 18 11 7.8 8.5 220 105 246 15 16 108
29 28 18 16 10 5.9 47 247 101 57 15 19 61
30 32   17 10 5.8 34 362 97 25 17 17 52
31 52   16   5.5   260 69   15   51