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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 09471550 SAN PEDRO RIVER NEAR TOMBSTONE, AZ


Cochise County, Arizona
Hydrologic Unit Code 15050202
Latitude  31°45'03", Longitude 110°12'02" NAD27
Drainage area 1,740  square miles
Contributing drainage area 1,740  square miles
Gage datum 3,780 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 1966-10-01 -> 2021-09-30)

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 35 35 18 14 7.1 1.5 12 256 37 71 9.3 25
2 29 29 24 14 16 1.4 15 137 43 106 8.6 15
3 20 27 26 14 7.9 1.5 10 143 51 121 8.2 14
4 17 44 32 14 6.6 4.4 11 206 40 46 8.2 13
5 16 55 49 13 6.2 5.9 7.5 176 47 24 11 12
6 26 39 41 13 6.1 2.1 17 161 91 25 15 12
7 36 34 31 12 5.8 2.3 35 146 49 19 21 12
8 46 30 27 12 5.5 1.5 36 115 77 162 25 13
9 34 27 24 12 5.3 1.3 25 146 60 420 16 12
10 25 25 22 11 5.2 1.1 64 221 79 123 13 12
11 21 23 23 11 4.7 1.1 70 220 79 40 12 14
12 19 22 24 11 4.3 0.92 58 180 66 74 11 12
13 19 23 21 10 4.1 1.1 42 248 78 58 10 13
14 18 22 23 10 4 0.88 34 199 72 20 10 14
15 18 21 28 10 3.8 0.7 51 177 33 12 9.8 20
16 17 21 26 9.8 3.5 0.61 67 145 19 9.4 9.7 16
17 18 21 22 9.7 3.7 0.49 127 91 19 9.2 9.6 15
18 131 20 20 9.7 3.7 4.2 109 114 88 11 9.4 18
19 42 20 21 9.6 3.5 0.97 107 125 224 21 9.3 170
20 28 20 23 9.1 3.3 0.63 165 95 86 29 9.4 137
21 24 20 23 8.9 2.9 0.74 72 71 45 15 9.4 87
22 25 27 20 8.7 2.8 0.91 131 55 65 16 9.9 34
23 24 28 20 8.2 2.6 0.59 106 70 23 187 9.8 29
24 23 23 18 8.2 2.5 9.5 135 81 22 124 9.8 33
25 27 21 18 8.1 2.4 1.9 94 87 27 27 38 20
26 40 20 17 7.8 2.2 0.7 119 90 48 17 18 18
27 47 19 16 7.7 2.1 3.2 195 87 39 12 12 18
28 40 19 16 7.6 2.4 4.1 170 72 48 12 39 118
29 30 17 16 7.5 1.8 12 169 69 82 11 87 58
30 26   15 7.3 1.9 16 177 86 27 11 61 32
31 29   15   1.8   224 62   9.9   24