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Bield:Fish
Regional spawn calendar

Pacific Northwest spawn calendar.

2 species with documented spawn timing in Pacific Northwest. Spawn timing is driven by water temperature — these calendar windows reflect the typical years when water reaches each species' threshold.

All species — Pacific Northwest

  • Rainbow TroutOncorhynchus mykiss
    Typical window: Late January – Mid-April
    JanJan — Outside spawn windowFebFeb — Outside spawn windowMarMar — Outside spawn windowAprApr — Outside spawn windowMayMay — Outside spawn windowJunJun — Outside spawn windowJulJul — Outside spawn windowAugAug — Outside spawn windowSepSep — Outside spawn windowOctOct — Outside spawn windowNovNov — Outside spawn windowDecDec — Outside spawn window
    Typical window: Late January – Mid-April

    Pacific Northwest sea-run steelhead and inland rainbow timing varies by strain.

  • Cutthroat TroutOncorhynchus clarkii
    Typical window: Late March – Mid-June
    JanJan — Outside spawn windowFebFeb — Outside spawn windowMarMar — Outside spawn windowAprApr — Outside spawn windowMayMay — Outside spawn windowJunJun — Outside spawn windowJulJul — Outside spawn windowAugAug — Outside spawn windowSepSep — Outside spawn windowOctOct — Outside spawn windowNovNov — Outside spawn windowDecDec — Outside spawn window
    Typical window: Late March – Mid-June

    Pacific Northwest cutthroat subspecies (coastal, sea-run) peak March–May.

Pacific Northwest spawn alerts.

Bield: Fish ties USGS gauges in your area to species spawn thresholds — get notified the day water temperature hits pre-spawn for your target.

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