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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 14015000 MILL CREEK AT WALLA WALLA, WA


Walla Walla County, Washington
Hydrologic Unit Code 17070102
Latitude  46°04'35", Longitude 118°16'21" NAD27
Drainage area 95.7  square miles
Gage datum 1,120.00 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 1940-10-01 -> 2020-09-30)

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
1 116 185 159 210 133 59 9.1 2.5 2.4 5.7 21 100
2 115 168 161 206 130 55 7.5 2.2 2.7 4.8 18 117
3 106 147 154 187 127 60 6.8 2.1 2.5 5.1 15 110
4 106 150 148 169 128 56 6.4 2.1 2.5 5.4 15 94
5 117 148 143 176 127 56 5.9 2.2 2.7 4 16 86
6 136 153 148 193 122 54 5.5 2.1 2.8 3.8 17 96
7 150 191 152 194 115 64 4.9 2.3 2.9 4 27 106
8 150 170 152 201 116 71 4.4 2.2 2.8 4.5 32 98
9 140 179 166 196 120 68 4.1 2.3 2.7 5 31 88
10 143 181 202 193 114 60 4.7 2.3 2.8 5.7 26 92
11 127 171 188 186 114 56 3.9 2.3 2.7 6.1 30 105
12 127 163 182 182 111 52 4 2.4 2.8 6.9 37 121
13 131 174 187 178 107 48 3.6 2.3 2.5 5.9 39 121
14 149 180 191 189 102 43 3.3 2.3 2.6 6.7 37 123
15 184 178 196 180 100 38 3.1 2.3 2.7 7.4 37 104
16 185 189 201 165 99 34 3 2.2 2.6 6.9 34 94
17 191 196 195 159 101 32 3 2.2 2.7 6.8 35 96
18 191 192 190 157 104 30 2.7 2.1 3 7.2 37 97
19 186 204 193 156 104 27 2.7 2 3.4 7.4 41 96
20 170 194 184 171 104 26 2.5 2 3.4 11 50 102
21 152 189 183 169 100 23 2.6 1.9 3.1 13 55 116
22 145 193 183 157 91 21 2.4 2.4 3 14 55 118
23 152 185 181 158 83 18 2.6 2.5 3.2 17 61 122
24 179 188 180 162 76 15 2.8 2.4 3.3 15 67 115
25 183 174 186 151 70 13 2.6 2.5 3.4 12 85 117
26 166 164 187 144 72 14 2.6 2.5 3.7 11 88 118
27 158 152 190 140 72 18 2.6 2.4 4.1 10 86 109
28 168 151 182 143 71 15 2.6 2.2 4.2 10 91 115
29 173 166 181 139 69 13 2.5 2.3 4.2 15 85 123
30 174   193 136 65 12 2.4 2.6 5.1 14 83 128
31 182   205   64   2.6 2.8   15   123