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USGS 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 12121600 ISSAQUAH CREEK NEAR MOUTH NEAR ISSAQUAH, WA


King County, Washington
Hydrologic Unit Code 17110012
Latitude  47°33'09", Longitude 122°02'48" NAD27
Drainage area 56.6  square miles
Contributing drainage area 56.60  square miles
Gage datum 35.99 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 1963-10-01 -> 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
1 226 264 226 167 122 88 53 30 32 40 97 227
2 224 232 207 176 118 92 54 30 34 41 98 234
3 226 210 212 171 116 90 56 30 31 39 99 270
4 226 206 209 168 113 88 54 29 30 37 131 265
5 266 215 217 187 117 84 51 29 29 36 117 234
6 291 239 211 184 115 82 49 29 33 43 130 232
7 326 227 197 174 111 89 48 29 30 41 159 214
8 302 234 182 172 104 86 47 30 31 41 135 212
9 305 235 193 171 100 86 48 28 30 44 122 219
10 278 215 213 164 98 89 48 28 31 47 132 220
11 267 203 211 171 95 87 49 28 31 48 139 225
12 282 209 213 167 92 86 47 28 29 43 164 240
13 279 209 214 166 94 82 50 29 28 44 169 256
14 288 211 211 173 93 77 46 28 29 46 193 257
15 284 211 217 166 97 74 43 29 29 47 172 257
16 279 228 219 162 99 77 42 29 29 48 156 248
17 271 232 210 155 96 76 41 28 35 51 154 236
18 281 230 205 146 91 80 40 29 39 53 150 226
19 284 260 207 150 89 72 39 28 38 57 158 215
20 280 256 201 158 90 68 38 29 38 70 163 239
21 281 228 185 146 89 69 37 28 38 78 164 241
22 248 221 180 137 91 65 36 29 38 79 168 231
23 248 206 182 141 87 66 36 30 45 67 186 220
24 266 203 181 145 83 75 35 33 40 63 239 225
25 292 194 181 137 84 69 34 31 39 68 232 228
26 259 184 181 129 83 63 34 32 36 79 226 240
27 253 198 175 126 85 60 33 30 35 80 209 245
28 259 233 170 127 94 60 32 29 39 85 209 236
29 273 260 174 124 97 59 32 30 39 95 219 235
30 283   180 128 91 55 31 33 44 91 229 248
31 259   174   88   31 31   96   218