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USGS Daily Statistics for California

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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 11453590 POPE C A WALTER SPRINGS CA


Napa County, California
Hydrologic Unit Code 18020162
Latitude  38°38'49.1", Longitude 122°21'56.97" NAD83
Drainage area 40.4  square miles
Gage datum 521.09 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 2020-10-01 -> 2024-09-30)

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
1 110 22 103 54 18 3.1 0. 0. 0. 0. 9.8 4.1
2 54 55 54 46 18 2.8 0. 0. 0. 0. 18 4.1
3 59 34 40 39 17 2.6 0. 0. 0. 0. 10 5.4
4 260 30 41 34 31 2.4 0. 0. 0. 0. 13 5.8
5 462 71 96 30 39 1.9 0. 0. 0. 0. 12 29
6 169 42 85 27 26 1.5 0. 0. 0. 0. 9 26
7 113 31 78 31 22 1.1 0. 0. 0. 0. 7.6 14
8 285 26 109 28 19 0.99 0. 0. 0. 0. 5.9 6.6
9 524 23 198 23 17 0.89 0. 0. 0. 0. 94 9
10 327 21 459 21 14 0.8 0. 0. 0. 0. 41 69
11 381 20 160 19 13 0.61 0. 0. 0. 0. 21 44
12 307 19 282 18 13 0.37 0. 0. 0. 0. 12 71
13 243 19 283 16 12 0.21 0. 0. 0. 0. 12 218
14 485 17 479 18 12 0.16 0. 0. 0. 0. 9.8 136
15 270 16 221 22 10 0.09 0. 0. 0. 0. 8.5 93
16 189 17 129 27 10 0.04 0. 0. 0. 0. 6.7 224
17 121 15 93 20 10 0. 0. 0. 0. 0. 5.8 56
18 95 14 74 13 9.9 0. 0. 0. 0. 0. 5.3 32
19 106 14 99 13 9.4 0. 0. 0. 0. 0. 5.1 21
20 67 14 83 11 8.5 0. 0. 0. 0. 0. 5.7 15
21 53 13 211 20 7.7 0. 0. 0. 0. 0. 6.4 13
22 48 12 247 15 7 0. 0. 0. 0. 0. 6 74
23 40 12 116 11 6.6 0. 0. 0. 0. 0. 5.8 390
24 35 31 82 9.5 6.2 0. 0. 0. 0. 915 5.5 110
25 32 27 64 8.5 6.2 0. 0. 0. 0. 320 5.3 156
26 30 41 52 7.8 6.3 0. 0. 0. 0. 57 5.1 87
27 57 107 45 7.5 5.8 0. 0. 0. 0. 29 4.8 329
28 57 169 111 8.3 5.2 0. 0. 0. 0. 19 4.6 86
29 33 109 143 7.1 4.7 0. 0. 0. 0. 14 4.4 107
30 22   102 6.6 4 0. 0. 0.   11 4.3 259
31 20   69   3.6   0. 0.   11   283