Frozen Pipe Protection in Arizona
In Arizona, local frozen pipes deadlines run from Sep 16 to Dec 18, with a median around Nov 19 — 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.
Notable cities
- Flagstaff — earliest deadline in the state
- Phoenix — latest deadline in the state
- Apache Junction — near the state median
All Arizona cities
| City | Local deadline | Median first 28°F | ||
|---|---|---|---|---|
| Flagstaff | Sep 16 | Oct 9 | View → | Checklist |
| Prescott | Oct 7 | Oct 31 | View → | Checklist |
| Prescott Valley | Oct 13 | Nov 8 | View → | Checklist |
| Sierra Vista | Oct 23 | Nov 21 | View → | Checklist |
| Oro Valley | Oct 26 | Nov 21 | View → | Checklist |
| Maricopa | Nov 10 | Dec 6 | View → | Checklist |
| Mesa | Nov 18 | Dec 19 | View → | Checklist |
| Scottsdale | Nov 18 | Dec 19 | View → | Checklist |
| Tempe | Nov 18 | Dec 19 | View → | Checklist |
| Casa Grande | Nov 18 | Dec 22 | View → | Checklist |
| Marana | Nov 18 | Dec 19 | View → | Checklist |
| Apache Junction | Nov 19 | Dec 22 | View → | Checklist |
| Tucson | Nov 28 | Dec 30 | View → | Checklist |
| Glendale | Nov 28 | Dec 29 | View → | Checklist |
| Peoria | Nov 28 | Dec 29 | View → | Checklist |
| Surprise | Nov 28 | Dec 29 | View → | Checklist |
| Bullhead City | Dec 1 | Dec 25 | View → | Checklist |
| Avondale | Dec 6 | Jan 4 | View → | Checklist |
| Goodyear | Dec 6 | Jan 4 | View → | Checklist |
| Buckeye | Dec 6 | Jan 4 | View → | Checklist |
| Lake Havasu City | Dec 9 | — | View → | Checklist |
| Yuma | Dec 11 | Dec 31 | View → | Checklist |
| Phoenix | Dec 18 | — | View → | Checklist |
Back to the national Frozen Pipe Protection guide, or see the methodology.
Data: NOAA NCEI 1991–2020 U.S. Climate Normals; live outlook by Open-Meteo. Last updated: July 11, 2026.