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USGS Daily Statistics for Louisiana

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 07375000 Tchefuncte River near Folsom, LA


St. Tammany Parish, Louisiana
Hydrologic Unit Code 08090201
Latitude  30°36'57", Longitude  90°14'55" NAD27
Drainage area 103.00  square miles
Contributing drainage area 95.50  square miles
Gage datum 61.13 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 1943-10-01 -> 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
1 220 199 194 221 143 142 240 110 170 70 65 136
2 190 315 211 279 176 188 128 138 107 77 72 108
3 171 268 301 233 324 127 105 140 93 79 84 95
4 193 271 279 231 214 97 97 96 90 126 75 155
5 224 303 263 203 161 78 93 89 140 124 70 168
6 229 298 292 334 154 85 110 98 183 103 77 169
7 231 271 237 318 124 87 113 102 141 81 71 188
8 251 226 287 224 183 89 112 83 91 75 80 164
9 245 180 252 225 190 96 110 83 77 67 80 151
10 215 184 213 185 238 103 98 78 81 63 71 199
11 194 247 474 220 197 113 113 73 83 61 74 216
12 200 284 305 249 295 117 112 192 82 67 77 195
13 206 318 209 233 231 100 107 289 99 65 89 201
14 204 270 249 264 175 97 93 109 126 75 279 180
15 213 227 221 378 155 107 106 116 112 80 141 183
16 187 266 257 250 166 89 92 93 138 66 106 179
17 164 302 244 182 116 84 86 84 126 60 90 169
18 157 292 264 247 100 83 88 96 92 59 83 185
19 210 328 277 172 124 80 84 98 82 57 98 200
20 266 251 215 142 158 81 89 75 74 54 103 177
21 389 236 178 170 127 76 103 75 76 55 104 162
22 343 426 176 268 111 78 117 78 80 61 105 178
23 317 305 182 213 122 76 102 81 72 61 137 186
24 272 241 181 150 109 76 105 94 72 63 116 226
25 278 261 284 125 103 89 108 101 66 83 117 209
26 285 302 183 153 107 114 107 94 80 95 161 173
27 240 290 182 184 96 131 103 143 170 145 240 132
28 315 275 214 140 92 118 91 102 91 96 138 272
29 289 161 291 143 93 118 84 86 78 79 119 221
30 231   311 147 108 128 78 258 69 75 123 168
31 206   282   118   96 340   67   191