Metolius River
The best month to fish the Metolius River is July. The month to avoid is May. Right now, in September, it is worth going.
- January: 76 out of 100
- February: 77 out of 100
- March: 84 out of 100
- April: 68 out of 100
- May: 55 out of 100
- June: 77 out of 100
- July: 89 out of 100
- August: 88 out of 100
- September: 78 out of 100
- October: 76 out of 100
- November: 78 out of 100
- December: 76 out of 100
GAUGE 14091500 · COLOURED BY SEPTEMBER
Month by month
| MONTH | TYPICAL FLOW | RANGE (P20–P80) | WATER | AIR HIGH | RAIN | SCORE |
|---|---|---|---|---|---|---|
| January | 1,502 cfs | 1,418–1,762 | 41.1°F | — | — | 76 |
| February | 1,527 cfs | 1,452–1,711 | 41.6°F | — | — | 77 |
| March | 1,549 cfs | 1,465–1,707 | 42.9°F | — | — | 84 |
| April | 1,612 cfs | 1,552–1,860 | 44.8°F | — | — | 68 |
| May | 1,753 cfs | 1,599–1,862 | 47.0°F | — | — | 55 |
| June | 1,589 cfs | 1,487–1,810 | 48.3°F | — | — | 77 |
| July | 1,474 cfs | 1,399–1,630 | 49.4°F | — | — | 89 |
| August | 1,408 cfs | 1,351–1,532 | 48.5°F | — | — | 88 |
| SeptemberNOW | 1,359 cfs | 1,320–1,468 | 46.8°F | — | — | 78 |
| October | 1,353 cfs | 1,304–1,457 | 44.6°F | — | — | 76 |
| November | 1,415 cfs | 1,302–1,514 | 42.5°F | — | — | 78 |
| December | 1,421 cfs | 1,365–1,619 | 41.1°F | — | — | 76 |
WHERE THESE NUMBERS COME FROM
Flow and water temperature are medians of the monthly means reported by USGS gauge 14091500 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 1,415–1,549 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 Metolius River is at its best in July — water around 49°F, flows near 1,474 cfs.
← RIVERS GOING WELL IN SEPTEMBERRegulations, 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.