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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 12502500 AHTANUM CREEK AT UNION GAP, WA


Yakima County, Washington
Hydrologic Unit Code 17030003
Latitude  46°32'10", Longitude 120°28'20" NAD27
Drainage area 173  square miles
Gage datum 940.00 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 1960-10-01 -> 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 49 97 118 136 147 182 61 16 18 23 27 41
2 53 101 117 135 147 181 58 16 18 23 27 46
3 54 92 117 133 148 181 54 16 18 22 27 55
4 51 89 115 130 151 180 51 16 19 23 27 51
5 50 102 113 129 156 181 48 16 19 23 28 48
6 52 95 120 129 161 178 45 16 19 22 28 44
7 53 100 123 132 164 174 42 16 19 22 31 42
8 67 117 121 137 166 168 40 16 19 22 30 40
9 61 125 120 139 169 161 39 16 20 23 29 43
10 60 108 132 139 170 157 37 16 20 24 28 48
11 59 106 136 139 168 151 35 16 20 24 29 44
12 56 102 135 138 166 145 36 16 20 24 31 42
13 54 102 141 138 169 140 34 15 19 24 32 48
14 60 99 145 139 173 137 32 15 20 25 31 52
15 72 100 145 134 179 135 30 16 20 24 31 53
16 106 110 144 131 188 133 28 16 21 24 33 50
17 98 117 141 129 189 129 27 16 21 22 31 48
18 90 116 139 127 189 124 26 16 22 22 32 46
19 83 119 139 126 189 118 26 16 22 22 31 44
20 79 127 141 133 189 112 25 16 23 22 33 45
21 76 132 140 140 188 109 24 17 23 22 36 47
22 71 127 137 143 187 104 22 17 22 24 36 49
23 70 121 137 144 182 99 21 18 22 23 38 47
24 77 119 136 148 181 94 20 18 23 23 40 46
25 77 123 133 148 181 88 19 18 23 23 39 46
26 74 119 132 144 180 82 19 18 23 23 41 49
27 74 116 129 142 179 76 19 18 23 24 40 54
28 73 120 127 144 177 71 18 18 23 24 38 56
29 75 169 126 145 177 68 17 18 23 25 39 52
30 78   130 147 180 66 17 18 23 25 40 51
31 87   134   183   16 18   27   48