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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 14219800 SPEELYAI CREEK NEAR COUGAR, WA


Cowlitz County, Washington
Hydrologic Unit Code 17080002
Latitude  46°00'17", Longitude 122°20'35" NAD27
Drainage area 12.6  square miles
Gage datum 492.05 feet above NAVD88
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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 1959-10-01 -> 2025-09-30)

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
1 152 192 155 137 98 57 23 7.7 8.7 27 119 230
2 150 167 145 133 100 68 23 7.9 10 23 114 253
3 165 163 146 126 103 62 23 8.5 8.4 24 112 253
4 178 147 147 125 100 57 20 8.1 8.5 25 132 243
5 205 135 157 136 100 57 19 7.5 7.7 23 121 211
6 210 149 146 145 102 55 17 6.9 8 22 149 202
7 280 171 141 151 100 62 16 7 7.4 24 154 191
8 217 165 132 154 93 53 16 6.9 6.9 29 135 171
9 211 160 160 156 86 51 16 6.1 7.8 42 128 172
10 196 166 178 152 80 53 16 5.8 7.8 41 125 178
11 182 141 173 148 77 50 15 5.5 8.2 51 151 192
12 200 156 182 144 73 53 14 5.6 6.8 46 181 208
13 230 161 170 147 74 45 16 5.5 7 45 162 219
14 252 164 186 148 77 41 16 5.3 7.5 48 182 194
15 245 170 200 134 76 42 16 5.1 11 49 166 196
16 237 199 172 125 77 44 13 5.3 13 41 171 210
17 215 197 152 118 75 39 14 5.2 16 42 182 200
18 220 200 151 112 74 36 14 5.1 22 43 172 192
19 221 225 149 111 71 36 13 5.1 20 49 196 175
20 214 215 146 118 71 33 11 5.3 21 50 220 202
21 189 201 149 107 67 30 11 5.3 18 59 202 203
22 160 191 152 104 64 29 10 5.5 15 89 222 185
23 191 201 151 119 62 28 9.9 9 19 77 229 181
24 200 169 153 127 64 27 9.4 10 19 65 270 174
25 228 142 150 117 60 29 8.9 13 18 66 268 166
26 196 128 138 111 57 28 8.5 11 16 75 209 196
27 196 146 140 114 59 27 8 9.8 16 89 183 212
28 205 166 149 109 61 26 7.7 10 25 97 196 205
29 210 202 170 103 61 26 7.5 11 31 100 187 197
30 202   176 103 57 23 7.3 12 32 99 198 187
31 205   152   56   7.1 9.2   118   155