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USGS Surface-Water Daily Statistics for Washington

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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 12147600 SOUTH FORK TOLT RIVER NEAR INDEX, WA


King County, Washington
Hydrologic Unit Code 17110010
Latitude  47°42'25", Longitude 121°35'56" NAD27
Drainage area 5.34  square miles
Gage datum 1,838.84 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 1959-10-01 -> 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 56 73 53 53 73 87 45 12 22 29 92 73
2 66 60 42 52 76 88 45 11 21 32 91 78
3 76 62 49 50 78 79 44 11 16 30 87 93
4 88 61 45 54 72 78 41 12 14 30 121 86
5 100 61 50 78 78 82 38 15 13 23 84 74
6 81 69 45 82 77 74 39 11 18 22 91 69
7 127 73 42 64 75 75 35 13 20 30 95 57
8 78 58 40 59 73 73 36 13 19 47 73 78
9 72 54 57 65 74 69 36 10 16 41 76 71
10 66 56 54 60 72 71 34 9.4 20 46 80 86
11 59 43 60 60 76 67 33 9.5 22 47 79 78
12 88 64 61 63 82 71 40 8.8 13 46 96 89
13 82 59 56 65 89 73 39 10 15 51 98 78
14 108 73 57 73 90 72 29 9.2 21 54 97 78
15 88 80 60 61 87 69 28 11 23 52 72 88
16 81 79 56 57 90 71 26 11 20 58 78 72
17 87 51 42 64 88 63 29 9.9 27 48 84 67
18 110 56 50 58 85 65 25 11 24 47 83 63
19 81 77 49 58 83 62 23 9.5 25 56 92 56
20 74 63 46 66 84 58 23 12 24 63 85 78
21 55 70 45 59 79 58 21 12 27 65 70 69
22 47 66 48 62 86 58 19 12 30 69 71 56
23 92 49 50 73 84 56 18 15 33 54 102 67
24 96 47 60 70 79 58 18 15 27 54 110 74
25 75 40 52 62 81 57 17 16 29 56 102 64
26 67 33 52 62 83 53 17 14 24 65 81 73
27 56 34 47 74 81 48 17 14 29 54 75 56
28 65 55 47 80 89 50 15 13 32 69 84 62
29 79 54 54 74 93 52 15 15 31 62 68 78
30 80   59 78 88 44 14 14 50 82 58 63
31 83   66   80   12 15   93   53