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USGS Daily Statistics for California
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.
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 545 feet above NAVD88 |
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00060, Discharge, cubic feet per second, | |||||||||||||
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Day of month |
Mean of daily mean values for each day for water year of record in, ft3/s
(Calculation Period 2020-10-01 -> 2023-09-30) Calculation period restricted by USGS staff due to special conditions at/near site |
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | ||
1 | 110 | 22 | 103 | 54 | 0. | 9.8 | 4.1 | ||||||
2 | 54 | 55 | 54 | 46 | 0. | 18 | 4.1 | ||||||
3 | 59 | 34 | 40 | 39 | 0. | 10 | 5.4 | ||||||
4 | 260 | 30 | 41 | 34 | 0. | 13 | 5.8 | ||||||
5 | 462 | 71 | 96 | 30 | 0. | 12 | 29 | ||||||
6 | 169 | 42 | 85 | 27 | 0. | 9 | 26 | ||||||
7 | 113 | 31 | 78 | 31 | 0. | 7.6 | 14 | ||||||
8 | 285 | 26 | 109 | 28 | 0. | 5.9 | 6.6 | ||||||
9 | 524 | 23 | 198 | 23 | 0. | 94 | 9 | ||||||
10 | 327 | 21 | 459 | 21 | 0. | 41 | 69 | ||||||
11 | 381 | 20 | 160 | 19 | 0. | 21 | 44 | ||||||
12 | 307 | 19 | 282 | 18 | 0. | 12 | 71 | ||||||
13 | 243 | 19 | 283 | 16 | 0. | 12 | 218 | ||||||
14 | 485 | 17 | 479 | 18 | 0. | 9.8 | 136 | ||||||
15 | 270 | 16 | 221 | 22 | 0. | 8.5 | 93 | ||||||
16 | 189 | 17 | 129 | 27 | 0. | 6.7 | 224 | ||||||
17 | 121 | 15 | 93 | 20 | 0. | 5.8 | 56 | ||||||
18 | 95 | 14 | 74 | 13 | 0. | 5.3 | 32 | ||||||
19 | 106 | 14 | 99 | 13 | 0. | 5.1 | 21 | ||||||
20 | 67 | 14 | 83 | 11 | 0. | 5.7 | 15 | ||||||
21 | 53 | 13 | 211 | 20 | 0. | 6.4 | 13 | ||||||
22 | 48 | 12 | 247 | 15 | 0. | 6 | 74 | ||||||
23 | 40 | 12 | 116 | 11 | 0. | 5.8 | 390 | ||||||
24 | 35 | 31 | 82 | 9.5 | 915 | 5.5 | 110 | ||||||
25 | 32 | 27 | 64 | 8.5 | 320 | 5.3 | 156 | ||||||
26 | 30 | 41 | 52 | 7.8 | 57 | 5.1 | 87 | ||||||
27 | 57 | 107 | 45 | 7.5 | 29 | 4.8 | 329 | ||||||
28 | 57 | 169 | 111 | 8.3 | 19 | 4.6 | 86 | ||||||
29 | 33 | 143 | 7.1 | 14 | 4.4 | 107 | |||||||
30 | 22 | 102 | 6.6 | 11 | 4.3 | 259 | |||||||
31 | 20 | 69 | 11 | 283 |