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USGS Daily Statistics for Illinois

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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 05595820 CASEY FORK AT MOUNT VERNON, IL


Jefferson County, Illinois
Hydrologic Unit Code 07140106
Latitude  38°17'11", Longitude  88°52'17" NAD83
Drainage area 76.9  square miles
Contributing drainage area 76.9  square miles
Gage datum 420.00 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 32 - 33 years of record in, ft3/s   (Calculation Period 1985-10-01 -> 2018-09-30)

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 38 246 59 209 198 119 14 9.5 16 5.6 30 94
2 33 265 69 119 211 152 109 16 14 16 54 46
3 98 158 117 286 149 100 91 9.5 24 26 26 53
4 156 126 202 451 130 50 58 6.9 19 7.0 18 49
5 224 82 162 182 237 65 24 6.6 8.4 5.9 20 83
6 149 119 128 186 152 33 28 27 5.6 6.9 14 126
7 103 202 123 104 142 30 54 9.5 5.7 6.2 16 53
8 71 94 93 92 184 106 101 36 24 8.5 12 34
9 55 64 204 86 193 96 50 16 11 42 14 62
10 55 72 206 256 84 53 66 11 9.0 13 13 33
11 106 77 102 292 116 56 38 6.0 18 6.2 54 59
12 88 79 269 158 99 67 61 5.5 6.4 6.0 104 67
13 258 120 167 98 163 45 77 22 5.2 23 43 53
14 181 201 216 186 197 49 27 72 6.4 40 268 49
15 133 136 124 155 149 26 28 104 6.1 18 171 111
16 95 108 78 174 225 44 36 113 11 15 119 69
17 98 87 105 148 541 157 16 96 24 18 107 95
18 94 72 276 80 385 135 9.1 48 11 22 71 78
19 95 76 375 160 120 153 11 14 5.5 12 173 56
20 125 106 263 166 43 149 28 7.0 25 8.5 165 48
21 109 101 186 137 38 37 73 8.6 5.6 8.3 33 140
22 166 117 104 136 47 53 20 6.2 9.0 7.6 38 203
23 160 86 159 181 33 18 13 5.0 42 37 25 96
24 78 124 100 205 36 132 13 5.2 29 17 33 138
25 62 198 122 176 84 75 11 6.5 27 12 45 151
26 111 110 149 163 186 126 7.5 59 48 34 58 118
27 123 101 140 183 135 63 6.3 51 11 83 122 157
28 113 89 109 273 98 27 9.3 15 6.8 30 175 200
29 56 43 133 379 37 28 12 20 7.9 15 95 158
30 109   277 314 34 16 27 6.2 5.1 36 94 54
31 133   214   104   31 5.0   53   60