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Arkansas River

The best month to fish the Arkansas River is April. The month to avoid is July. Right now, in September, it is worth going.

  1. January: 60 out of 100
  2. February: 68 out of 100
  3. March: 76 out of 100
  4. April: 90 out of 100
  5. May: 55 out of 100
  6. June: 44 out of 100
  7. July: 40 out of 100
  8. August: 71 out of 100
  9. September: 71 out of 100
  10. October: 83 out of 100
  11. November: 72 out of 100
  12. December: 62 out of 100
SEPTEMBER: GO, WITH CAVEATS71/100

Water averages 62°F this month — fishable, but the margin is thinning. Fish early, land them fast, and stop when the afternoon heats up.

WHERE IT IS
LOADING THE MAP…

GAUGE 07096000 · COLOURED BY SEPTEMBER

THE NUMBERS

Month by month

MONTHTYPICAL FLOWRANGE (P20–P80)WATERAIR HIGHRAINSCORE
January436 cfs349–52932.7°F——60
February431 cfs351–55435.7°F——68
March410 cfs323–54144.1°F——76
April339 cfs253–41651.0°F——90
May893 cfs652–1,29256.1°F——55
June1,887 cfs1,209–3,00361.1°F——44
July819 cfs633–1,45067.3°F——40
August586 cfs425–69767.6°F——71
SeptemberNOW300 cfs218–36761.8°F——71
October314 cfs243–37950.5°F——83
November386 cfs319–48839.3°F——72
December421 cfs376–49933.4°F——62
WHERE THESE NUMBERS COME FROM

Flow and water temperature are medians of the monthly means reported by USGS gauge 07096000 over 1999-2018. 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 386–586 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.

IF THIS MONTH IS WRONG

The Arkansas River is at its best in April — water around 51°F, flows near 339 cfs.

← RIVERS GOING WELL IN SEPTEMBER

Regulations, 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.