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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 11176400 ARROYO VALLE BL LANG CYN NR LIVERMORE CA


Alameda County, California
Hydrologic Unit Code 18050004
Latitude  37°33'41", Longitude 121°40'58" NAD27
Drainage area 130  square miles
Gage datum 749.09 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 1963-10-01 -> 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
1 104 55 156 65 15 4 1.1 0.19 0.07 0.15 0.25 23
2 86 71 126 52 14 3.8 1.1 0.17 0.07 0.13 0.21 23
3 60 140 101 47 14 3.7 0.99 0.17 0.07 0.11 0.19 14
4 90 114 125 53 13 3.6 0.91 0.17 0.07 0.1 0.19 13
5 121 98 131 48 12 3.7 0.88 0.16 0.06 0.1 0.23 11
6 70 106 95 44 12 3.5 0.8 0.16 0.06 0.1 0.59 15
7 57 180 88 40 11 3.3 0.78 0.15 0.06 0.11 0.47 8.9
8 76 150 101 36 11 3.2 0.74 0.14 0.06 0.12 0.67 8.1
9 135 142 75 35 9.9 3.1 0.7 0.12 0.06 0.11 1.2 12
10 149 117 170 45 9.4 3 0.67 0.11 0.06 0.1 0.66 28
11 117 86 114 61 8.8 2.8 0.6 0.11 0.06 0.1 1.4 27
12 76 91 91 45 8.5 2.7 0.55 0.11 0.05 0.09 2.1 25
13 103 130 108 39 8.7 2.7 0.53 0.11 0.05 0.09 3.5 15
14 107 160 96 32 8.2 2.5 0.49 0.1 0.05 0.24 3.6 15
15 99 184 80 29 7.9 2.5 0.44 0.11 0.05 0.16 2.6 14
16 152 154 103 27 8 2.5 0.41 0.11 0.05 0.13 6.6 43
17 123 174 69 26 7.4 2.3 0.39 0.11 0.05 0.12 8.4 24
18 80 185 59 25 6.8 2.1 0.38 0.11 0.06 0.11 7.1 16
19 108 262 48 23 6.5 2 0.37 0.12 0.06 0.11 4.2 18
20 108 197 77 22 6.3 2 0.36 0.15 0.06 0.11 6.1 30
21 135 220 64 23 6 1.8 0.33 0.12 0.06 0.14 3.5 38
22 183 129 113 22 5.9 1.7 0.32 0.12 0.06 0.15 2.5 76
23 139 108 112 20 5.5 1.7 0.33 0.11 0.07 0.19 2.3 84
24 173 114 98 19 5.2 1.5 0.32 0.11 0.1 0.17 11 62
25 159 117 101 18 5.1 1.4 0.29 0.11 0.11 1.5 8.2 52
26 153 107 72 17 4.9 1.4 0.27 0.1 0.1 0.63 4.2 45
27 128 94 65 15 4.8 1.3 0.26 0.1 0.1 0.38 3.6 53
28 95 121 59 23 4.6 1.3 0.25 0.08 0.1 0.25 4.9 44
29 91 56 51 20 4.6 1.2 0.24 0.08 0.09 0.25 6.2 54
30 78   50 18 4.3 1.2 0.23 0.08 0.11 0.38 33 52
31 68   66   4.1   0.2 0.08   0.35   165