When Do Catfish Spawn in Missouri?

Missouri channel catfish spawn from late May through June. Flathead catfish spawn about a month later — late June into July. Any article giving you one date for "catfish" is wrong for at least one of the three species in the state.

Three species, three schedules

Missouri holds all three of the big catfish, and Missouri Department of Conservation is unusually clear that they do not spawn together.

Species	Missouri spawning	Where they nest
Channel catfish	Late May through June	Larger fish along rock riprap shorelines; also hollow logs, ledges, holes under mud banks
Flathead catfish	Late June and July — north Missouri: last week of June to third week of July	Saucer-shaped depression in a natural cavity or beside a large submerged object
Blue catfish	Late spring and early summer, in cavities	Similar cavity nesting to channel catfish

MDC states the comparison directly: flatheads spawn "somewhat later than the channel catfish." That month is the whole reason this page exists.

The riprap tip

This is the most immediately usable thing MDC publishes on the subject:

"Larger channel catfish often spawn in late May through June along shorelines protected with rock riprap. This is a good place to fish when water temperatures reach 65 degrees."

Two things worth pulling out of that.

First, riprap is a specific, findable target. Rock riprap is everywhere in Missouri — bridge abutments, causeways, dam faces, reinforced banks on the big rivers and reservoirs. The gaps between the rocks are exactly the dark, enclosed cavity a channel catfish wants, and unlike a hollow log you can see riprap from the road.

Second, 65°F is a fishing cue, not the spawn. MDC is careful about that wording — it is where to start looking. The actual spawning trigger is warmer; Ohio DNR reports spawning beginning near 70°F and Oklahoma's ODWC gives 75°F.

So: start working riprap at 65°F for pre-spawn fish, and expect the spawn proper somewhere in the 70s.

Why flathead timing matters more than channel timing

Because flatheads stop eating while they spawn.

MDC, twice: flatheads "feed heavily before and after spawning but seldom feed while actively spawning," and they "generally don't bite well during that time."

Channel catfish do not shut down like that — the spawn is a location tip for them. For flatheads it is a warning. Roughly three weeks from late June, in the north of the state, flathead fishing goes quiet for reasons that have nothing to do with you.

If you fish for flatheads, the practical calendar is: hard in June, skip the first weeks of July, back at it from late July into autumn.

Telling the three apart

Worth getting right, because the regulations and the tactics differ.

	Tail	Anal fin	Head
Channel	Deeply forked	Rounded	Normal
Blue	Deeply forked	Straight across the bottom	Normal
Flathead	Squared, not forked	—	Broad and flattened, lower jaw projecting

The flathead is unmistakable once you look at the tail. Channel versus blue comes down to the anal fin: rounded on a channel, straight-edged on a blue. Young channel cats also carry scattered dark spots that usually fade with age.

How to fish each

Channel catfish are omnivores — insects, crayfish, molluscs, small fish, carrion — which is why cut bait, chicken liver and prepared baits all work. Fish riprap from late May, and fish after dark through summer. Where shad are present, fresh cut shad beats anything from a jar.

Flathead catfish eat live fish and crayfish almost exclusively and rarely touch cut or prepared bait. Live bluegill or green sunfish, fished at night, tight to timber and deep holes. They are largely inactive in daylight.

Blue catfish want current. They sit where moving water concentrates shad — below dams, on main channel edges, in deep water near channel structure. Fresh cut shad, and fresher beats bigger.

A note on keeping fish

Flatheads reach maturity at four or five years old, or about 18 inches. Missouri grows genuinely large flatheads and blues — both can exceed 100 pounds — and those are slow-growing, long-lived fish. Keeping a few eating-size channel cats is a different act from keeping a 40-pound flathead that took fifteen years to grow.

Check the current Missouri fishing regulations for length and daily limits on the water you are fishing.

Related

• When do flathead catfish spawn in Missouri? — the exact north-Missouri weeks, and the feeding shutdown in detail.

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Sources

• Catfish: Tips For Fishing — Missouri Department of Conservation — channel catfish spawning late May through June along rock riprap, and the 65°F cue; flatheads inactive in daytime and preferring live bait; blue catfish in swift current and deep water near dams and channel structure.
• Flathead Catfish — Missouri Department of Conservation field guide — late June and July, later than channel catfish; nest construction; maturity at four or five years or about 18 inches.
• Hunting Flathead Catfish — Missouri Conservationist — north Missouri spawning from the last week of June to the third week of July, and the feeding shutdown while spawning.
• Channel Catfish — Ohio DNR — spawning beginning near 70°F.
• Catfish, Channel — Oklahoma Department of Wildlife Conservation — late May or early June at 75°F; nest sites; male guarding.
• Catfish, Blue — ODWC — the straight anal fin that separates blue from channel catfish.

Blue catfish spawning is described only in general terms above. Agencies frequently publish identical spawning text for blue and channel catfish, so a precise blue-specific date or temperature is rarely a genuine species finding, and none is asserted here.