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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 water year of record in, ft3/s   (Calculation Period 1985-10-01 -> 2022-09-30)

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 68 228 88 197 184 109 39 9.5 16 5.5 35 156
2 45 241 71 115 207 138 107 16 14 14 56 56
3 95 145 113 266 152 93 84 9.7 22 24 26 55
4 151 116 186 417 167 46 59 6.9 18 6.8 18 49
5 220 83 153 169 240 61 24 6.5 8.5 5.8 23 79
6 139 139 125 171 145 51 30 24 5.5 6.7 26 114
7 96 252 115 98 137 31 50 9 5.5 6 19 49
8 67 121 87 88 170 98 91 32 95 8.1 14 32
9 52 64 198 81 177 93 45 15 81 38 15 57
10 78 86 214 231 79 51 64 11 12 12 14 31
11 185 87 109 264 107 53 41 7 17 16 51 54
12 128 108 286 148 92 63 58 11 6.6 8.4 97 67
13 251 136 167 91 148 42 71 30 5.4 22 41 51
14 173 189 249 223 178 45 25 67 6.3 38 247 48
15 126 127 153 158 142 25 26 94 6.1 17 163 159
16 91 119 90 162 207 47 82 101 9.9 15 112 106
17 95 85 117 136 487 152 92 86 22 17 99 98
18 136 70 323 78 352 122 23 43 10 20 67 76
19 152 72 411 157 112 137 13 13 5.3 12 161 55
20 132 115 346 154 42 134 27 9.6 23 8.5 154 47
21 105 143 184 126 38 37 66 16 5.5 9.2 32 131
22 157 160 102 124 82 71 19 39 9.2 8.1 60 185
23 190 114 148 175 40 35 13 11 38 35 32 90
24 97 163 112 193 35 128 12 7.8 26 16 34 127
25 77 272 157 186 77 80 17 8.6 48 12 72 138
26 116 115 152 222 172 120 12 53 52 60 68 107
27 117 98 158 176 124 61 7.1 46 12 122 143 146
28 107 129 176 250 95 28 9.3 14 7 33 173 185
29 54 44 180 410 86 28 12 19 7.8 20 91 156
30 105   315 312 50 30 25 10 5.1 35 148 74
31 151   220   96   28 13   56   82