What Temperature Does Chicken Water Freeze? Chart + Hours

Short

Still water freezes at 32°F. In practice: standard 1-gal plastic fount in wind ices in 2-4h below 28°F. 3-gal in sheltered coop buys 6-8h to ~25°F. Below 20°F overnight, assume frozen by morning without heat.

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Heated holds to rating: Farm ~0°F, Premier -20°F – see best. Rating means nipples/trough liquid, not lid never frosts.

Wind + metal rim = fastest freeze. Hang inside, windbreak run. See pillar, rim fix.

Will moving water prevent freezing?No – chickens don't circulate enough. Only heat or swap works.

Sources

Freeze timing vs windbreak and housing: UMN Extension, NC State backyard chickens.

Does wind matter more than air temp?Yes – 28°F + wind freezes a 1-gal fount in 2-4h. Same water sheltered buys 6-8h.
David Klein — Test engineer, Minnesota
Logs thermostat on/off points, kWh cost, freeze ratings. Runs side-by-side comparisons of Farm Innovators, Premier 1, K&H and API through January cold snaps.