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USGS Surface-Water 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 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
1 228 264 225 168 123 88 54 30 32 40 97 229
2 226 232 206 177 118 92 54 30 34 41 98 235
3 228 211 212 172 117 88 56 30 31 39 99 272
4 228 207 209 169 113 85 54 29 30 37 131 267
5 268 217 217 188 116 82 52 29 29 36 117 222
6 292 241 211 185 114 80 50 29 33 43 130 216
7 328 229 198 176 110 88 48 29 30 41 159 203
8 304 236 183 174 103 86 47 30 31 41 135 206
9 304 237 194 172 100 86 48 28 30 44 122 216
10 277 217 214 165 98 90 48 28 31 47 132 215
11 267 204 212 172 96 88 49 28 31 48 139 223
12 283 209 213 168 92 86 47 28 29 43 164 239
13 280 209 214 167 95 83 51 29 28 44 169 257
14 290 211 212 175 94 78 46 28 29 46 193 258
15 287 211 218 167 98 74 44 29 29 47 172 258
16 282 229 220 163 100 77 43 29 29 48 156 250
17 272 233 211 157 96 76 42 28 35 51 154 238
18 283 231 207 147 91 81 41 29 39 53 150 228
19 286 262 208 151 90 73 39 28 38 57 158 217
20 282 258 203 160 90 68 38 29 38 70 163 241
21 282 230 187 148 89 70 37 28 38 78 164 243
22 248 222 182 139 90 65 36 29 38 79 168 232
23 247 207 183 142 87 66 36 30 45 67 186 221
24 266 205 183 146 83 75 35 33 40 63 239 226
25 292 196 182 138 83 70 34 31 39 68 232 230
26 259 185 182 129 82 63 34 32 36 79 226 241
27 252 199 176 127 85 60 33 30 35 80 209 246
28 257 234 170 127 94 61 32 29 39 85 209 238
29 272 254 175 124 97 60 32 30 39 95 222 237
30 284   181 128 91 56 31 33 44 91 232 250
31 259   175   88   31 31   96   219