South Platte River
The best month to fish the South Platte River is February. The month to avoid is June. Right now, in August, it is worth going.
- January: 24 out of 100
- February: 71 out of 100
- March: 71 out of 100
- April: 71 out of 100
- May: 24 out of 100
- June: 23 out of 100
- July: 70 out of 100
- August: 71 out of 100
- September: 71 out of 100
- October: 71 out of 100
- November: 71 out of 100
- December: 68 out of 100
This gauge does not report water temperature, so the check that would rule out water too warm to fight a fish in cannot run for this month. Treat the score as flow and season only, and ask a local shop about temperature before you travel in warm weather.
- Flow is well lower than normal — 78 CFS against a typical 239 CFS.
LIVE FROM USGS GAUGE 06759500 · EVERYTHING ELSE ON THIS PAGE IS A TWENTY-YEAR NORMAL
GAUGE 06759500 · COLOURED BY AUGUST
Month by month
| MONTH | TYPICAL FLOW | RANGE (P20–P80) | WATER | AIR HIGH | RAIN | SCORE |
|---|---|---|---|---|---|---|
| January | 557 cfs | 348–925 | — | — | — | 24 |
| February | 377 cfs | 306–585 | — | — | — | 71 |
| March | 417 cfs | 183–519 | — | — | — | 71 |
| April | 272 cfs | 130–568 | — | — | — | 71 |
| May | 910 cfs | 281–2,005 | — | — | — | 24 |
| June | 989 cfs | 435–3,252 | — | — | — | 23 |
| July | 231 cfs | 192–656 | — | — | — | 70 |
| AugustNOW | 239 cfs | 178–285 | — | — | — | 71 |
| September | 279 cfs | 227–449 | — | — | — | 71 |
| October | 296 cfs | 248–441 | — | — | — | 71 |
| November | 350 cfs | 259–473 | — | — | — | 71 |
| December | 367 cfs | 249–877 | — | — | — | 68 |
WHERE THESE NUMBERS COME FROM
Flow and water temperature are medians of the monthly means reported by USGS gauge 06759500 over 2006-2025. Air temperature and precipitation are ten-year normals from Open-Meteo at this river’s gauge coordinates.
The window is deliberate. USGS’s own full-record statistics for a dammed river reach back before the dam — at Lees Ferry, to 1922, forty-one years before Glen Canyon closed — and describe a river that no longer exists.
Flow is scored against this river’s own fishable band of 279–417 cfs. There is no universal band: 8,000 cfs is low water on a big tailwater and a flood on a spring creek.
Water temperature is a ceiling rather than a weight. Above about 68°F a trout that is fought and released frequently dies anyway, so no month above that line is scored as worth booking, however good its flow.
The South Platte River is at its best in February, flows near 377 cfs.
← RIVERS GOING WELL IN AUGUSTRegulations, licences and access change without notice and are not reproduced here as fact — check the state agency before you travel. A median describes twenty years; it does not forecast your week. Source: U.S. Geological Survey, National Water Information System.