Frozen Pipe Protection in Idaho

In Idaho, local frozen pipes deadlines run from Sep 17 to Oct 5, with a median around Oct 2 — a spread of weeks that a single statewide date would miss. Find your city below; each links to local freeze odds, a live 10-day outlook, and a checklist.

Frozen outdoor pipe with a thick icicle after a hard freeze — protect plumbing before freezing nights arrive — Idaho deadlines city by city — Photo: Eva Bronzini / Pexels

Jump to a city

Notable cities

Idaho Falls — earliest deadline in the state
Meridian — latest deadline in the state
Caldwell — near the state median

All Idaho cities

City	Local deadline	Median first 28°F
Idaho Falls	Sep 17	Oct 13	View →	Checklist
Twin Falls	Sep 24	Oct 23	View →	Checklist
Pocatello	Sep 26	Oct 24	View →	Checklist
Nampa	Sep 29	Oct 25	View →	Checklist
Caldwell	Oct 2	Oct 30	View →	Checklist
Coeur d'Alene	Oct 4	Nov 1	View →	Checklist
Boise	Oct 5	Oct 31	View →	Checklist
Boise City	Oct 5	Oct 31	View →	Checklist
Meridian	Oct 5	Oct 31	View →	Checklist

Local frozen pipe protection deadlines for Idaho cities — built from each city’s own NOAA station, not one statewide date.

Frozen Pipe Protection in Idaho: related searches

Idaho homeowners search for: pipe freeze temperature, how to keep pipes from freezing, and "frozen pipe protection near me" — every city page below answers those with local NOAA dates.

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Back to the national Frozen Pipe Protection guide, or see the methodology. You can also compare how the frozen pipe protection window shifts in Georgia and Illinois.

Data: NOAA NCEI 1991–2020 U.S. Climate Normals; live outlook by Open-Meteo. Last updated: July 25, 2026.