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USGS Daily Statistics for the Nation

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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 05536275 THORN CREEK AT THORNTON, IL


Cook County, Illinois
Hydrologic Unit Code 07120003
Latitude  41°34'05.4", Longitude  87°36'30" NAD83
Drainage area 104  square miles
Gage datum 586.05 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 1947-10-01 -> 2026-09-30)

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 82 183 248 215 160 97 55 69 53 92 112
2 115 98 168 219 171 162 94 56 58 49 96 118
3 104 105 163 208 143 122 100 70 47 73 82 112
4 135 91 198 205 120 89 74 86 42 70 80 100
5 141 100 227 173 122 110 69 84 54 61 95 86
6 122 95 189 202 126 99 72 69 54 55 85 79
7 93 91 164 184 139 116 80 54 49 55 63 99
8 122 87 178 150 135 127 81 54 43 54 55 115
9 112 93 195 158 151 161 70 52 52 54 66 97
10 97 114 205 143 188 163 60 53 60 68 80 82
11 123 106 218 152 216 147 59 50 57 94 87 96
12 116 112 194 169 217 134 75 48 58 78 77 106
13 139 111 209 152 215 157 114 43 90 67 76 95
14 123 110 208 157 186 200 99 42 131 81 91 93
15 109 110 192 176 175 174 73 53 128 82 95 108
16 88 107 182 176 138 141 60 63 85 62 87 91
17 93 142 168 229 138 106 57 106 73 68 74 77
18 92 151 181 210 148 88 107 115 73 71 88 66
19 91 148 194 168 138 84 132 95 84 57 118 60
20 113 183 189 178 120 101 92 94 55 59 98 74
21 102 228 165 175 118 120 107 87 48 52 89 88
22 107 224 155 186 148 125 124 60 47 49 76 114
23 126 209 155 177 144 116 95 57 61 82 77 107
24 133 176 147 147 119 89 94 81 76 82 78 96
25 121 167 152 203 110 113 72 74 68 93 72 139
26 116 141 144 206 129 119 62 76 83 83 95 119
27 97 167 145 179 125 137 69 81 80 93 125 129
28 99 155 163 222 127 120 83 79 95 65 165 143
29 98 110 174 220 171 108 70 85 82 57 121 144
30 102   205 225 142 94 65 67 64 99 105 161
31 83   222   133   75 62   111   164