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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 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 -> 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 36 35 18 14 7.1 1.5 12 262 36 73 9.6 25
2 29 29 24 14 16 1.4 15 137 44 108 8.9 15
3 20 27 26 14 8 1.5 11 145 53 124 8.4 14
4 18 44 32 14 6.6 4.5 11 211 41 47 8.4 14
5 17 55 49 13 6.3 6 7.7 180 48 24 11 13
6 27 39 41 13 6.1 2.2 17 165 93 26 15 12
7 37 34 31 12 5.8 2.4 36 150 50 19 22 12
8 47 30 27 12 5.5 1.6 37 118 79 166 25 13
9 35 27 24 12 5.3 1.3 26 149 62 430 17 12
10 26 25 22 11 5.2 1.1 65 226 81 126 13 12
11 22 23 23 11 4.7 1.1 72 225 81 41 12 14
12 20 22 24 11 4.3 0.94 59 184 68 76 11 13
13 19 23 21 10 4.1 1.1 43 253 80 60 11 13
14 18 22 23 10 4 0.9 35 204 74 21 11 14
15 18 21 28 10 3.8 0.71 52 181 33 13 10 20
16 17 21 26 9.9 3.5 0.62 69 149 19 9.6 9.9 16
17 18 21 22 9.7 3.7 0.5 130 94 19 9.5 9.8 15
18 131 20 20 9.6 3.8 4.3 112 116 90 12 9.6 19
19 42 20 21 9.4 3.5 1 110 128 230 22 9.5 174
20 28 20 23 9.1 3.3 0.64 169 97 88 30 9.6 140
21 24 20 23 8.9 2.9 0.76 74 73 46 15 9.6 89
22 25 27 20 8.7 2.8 0.93 134 56 66 16 10 35
23 24 28 20 8.2 2.7 0.6 108 72 24 192 10 30
24 23 23 18 8.2 2.5 9.7 138 83 22 127 10 34
25 27 21 18 8.1 2.4 1.9 96 89 27 28 39 20
26 40 20 17 7.8 2.3 0.71 122 92 49 17 18 18
27 47 19 16 7.7 2.2 3.3 200 90 40 12 12 18
28 40 19 16 7.6 2.4 4.2 174 74 49 12 40 121
29 30 17 16 7.5 1.9 12 173 70 84 12 89 59
30 26   15 7.3 2 16 181 88 28 11 62 32
31 29   15   1.8   229 63   10   25