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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 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 -> 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
1 119 183 165 208 135 63 9.7 2.7 2.8 6.3 22 98
2 117 166 169 205 132 57 8.1 2.7 3.1 5.3 19 114
3 109 145 162 187 129 63 7.4 2.6 3 5.7 16 108
4 110 147 155 170 129 61 7.1 2.6 2.9 5.8 19 95
5 121 146 149 176 128 61 6.5 2.7 3.1 4.5 26 88
6 137 152 154 191 127 60 6 2.7 3.2 4.2 22 96
7 154 188 155 192 130 67 5.4 2.8 3.3 4.4 33 106
8 153 169 154 199 128 74 4.9 2.7 3.2 4.9 36 98
9 142 177 165 195 128 69 4.6 2.7 3.1 5.4 34 88
10 144 178 200 193 118 62 5 2.7 3.2 6.1 28 95
11 128 168 186 188 116 59 4.3 2.8 3.3 6.7 32 110
12 129 160 180 183 113 54 4.4 2.8 3.2 7.4 39 124
13 137 171 185 176 109 62 4.1 2.6 3 6.4 42 123
14 155 177 191 186 105 56 3.7 2.6 3 7.1 39 123
15 186 175 197 177 106 46 3.5 2.6 3.2 7.7 38 105
16 185 185 202 163 104 40 3.4 2.4 3.1 7.3 36 94
17 190 191 196 157 105 36 3.4 2.4 3.2 7.1 36 96
18 190 187 191 156 107 33 3.1 2.4 3.6 7.5 39 96
19 184 198 195 159 106 30 3 2.3 4 7.7 42 95
20 171 190 186 173 105 28 2.8 2.4 4.1 11 51 106
21 158 186 185 171 100 25 2.8 2.3 3.9 13 55 122
22 150 190 184 158 91 22 2.7 2.8 3.6 14 55 122
23 157 188 183 158 83 19 2.8 2.9 3.7 17 61 124
24 181 188 182 163 76 16 3 2.8 3.9 15 67 116
25 184 174 189 152 70 14 2.9 2.9 4.1 13 84 117
26 166 166 188 145 72 15 3 2.8 4.4 12 87 120
27 158 155 191 141 72 18 2.9 2.7 4.7 11 85 115
28 168 153 184 143 71 15 2.9 2.6 4.9 11 89 120
29 173 175 183 139 71 14 2.7 2.7 4.9 16 84 125
30 173   193 137 70 13 2.6 3 5.8 14 81 128
31 180   204   67   2.7 3.1   16   123