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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 37 239 62 207 193 117 14 9.4 15 5.6 30 94
2 32 257 69 120 205 148 107 16 14 16 54 46
3 95 154 115 286 146 100 89 9.3 23 26 26 53
4 151 122 197 451 128 49 57 6.8 19 7.0 18 49
5 218 79 163 180 230 63 24 6.5 8.3 5.9 20 83
6 145 116 133 183 148 32 28 26 5.6 6.9 14 126
7 100 196 122 103 138 30 52 9.4 5.7 6.2 16 53
8 69 92 93 91 179 103 98 35 24 8.5 12 34
9 53 62 199 84 188 94 49 16 11 42 14 62
10 53 70 201 249 82 52 64 11 9.0 13 13 33
11 103 75 101 284 113 56 37 5.9 18 6.2 54 59
12 86 77 262 154 96 68 59 5.4 6.4 6.0 104 67
13 250 116 163 96 159 45 74 22 5.2 23 43 53
14 176 195 211 207 192 48 26 70 6.4 40 268 49
15 129 132 121 159 144 26 27 101 6.1 18 171 111
16 92 124 76 171 219 43 35 110 11 15 119 69
17 95 88 103 145 525 152 16 93 24 18 107 95
18 91 73 268 79 374 131 8.9 46 11 22 71 78
19 92 75 366 156 117 148 10 13 5.5 12 173 56
20 121 104 264 162 42 145 27 7.2 25 8.5 165 48
21 106 147 183 134 37 37 71 9.5 5.6 8.3 33 140
22 165 157 103 132 46 52 20 6.3 9.0 7.6 38 203
23 158 101 155 179 33 18 13 5.0 42 37 25 96
24 76 163 112 201 35 128 12 6.4 29 17 33 138
25 60 281 128 172 82 84 10 8.2 27 12 45 151
26 108 117 148 160 181 130 7.4 57 48 34 58 118
27 120 101 162 178 131 65 6.2 50 11 83 122 157
28 111 89 154 265 95 27 9.1 14 6.8 30 175 200
29 55 43 174 368 36 29 12 20 7.9 15 95 158
30 106   321 305 34 16 26 6.1 5.1 36 94 54
31 129   214   101   30 4.9   53   60