National Weather ServiceArizonaFreeze WarningArchive to October 1, 2026
Freeze Warnings in Arizona
The National Weather Service issued 23 freeze warnings for Arizona in 2025 and 21 a year on average in 2008-2025; in 2021-2025 it had the 11th most of any state. 2026 through September: 3, 64% below the average of 8 for those months in 2008-2025. Tucson Metro Area including Tucson/Green Valley/Marana/Vail was covered most often (83 times since 2008).
How many freeze warnings does Arizona get?
Every freeze warning that covered part of Arizona. 2026 is an outline: the year is not over.
The numbers
| Year | Count |
|---|---|
| 2026 (through September) | 3 |
| 2025 | 23 |
| 2024 | 32 |
| 2023 | 30 |
| 2022 | 26 |
| 2021 | 14 |
| 2020 | 25 |
| 2019 | 25 |
| 2018 | 23 |
| 2017 | 13 |
| 2016 | 16 |
| 2015 | 28 |
| 2014 | 16 |
| 2013 | 24 |
| 2012 | 15 |
| 2011 | 22 |
| 2010 | 19 |
| 2009 | 11 |
| 2008 | 13 |
Source: Iowa Environmental Mesonet archive of National Weather Service watches, warnings and advisories (VTEC); National Weather Service. Data as of October 1, 2026.
When in the year does Arizona get them?
Sum of 2008-2025; the busiest month is labelled.
Source: Iowa Environmental Mesonet archive of National Weather Service watches, warnings and advisories (VTEC); National Weather Service. Data as of October 1, 2026.
Where in Arizona?
| County or forecast zone | Since 2008 | Since 2023 | Last issued |
|---|---|---|---|
| Tucson Metro Area including Tucson/Green Valley/Marana/Vail | 83 | 20 | January 9, 2026 |
| Southeast Pinal County including Kearny/Mammoth/Oracle | 79 | 20 | January 9, 2026 |
| Tohono O'odham Nation including Sells | 77 | 20 | January 9, 2026 |
| South Central Pinal County including Eloy/Picacho Peak State Park | 75 | 20 | January 9, 2026 |
| Upper Gila River and Aravaipa Valleys including Clifton/Safford | 50 | 19 | January 9, 2026 |
| Eastern Cochise County Below 5000 Feet including Douglas/Willcox | 50 | 18 | January 9, 2026 |
| Upper San Pedro River Valley including Sierra Vista/Benson | 46 | 13 | January 9, 2026 |
| Northwest Pinal County | 42 | 23 | January 10, 2026 |
| Western Pima County (including Ajo/Organ Pipe Cactus National Monument) | 39 | 11 | January 14, 2025 |
| Northwest Deserts | 39 | 6 | December 2, 2025 |
| Upper Santa Cruz River and Altar Valleys including Nogales | 37 | 11 | January 9, 2026 |
| San Carlos | 37 | 17 | January 10, 2026 |
The NWS issues these products for counties or forecast zones; a zone can be part of a county or a mountain range.
Source: Iowa Environmental Mesonet archive of National Weather Service watches, warnings and advisories (VTEC); National Weather Service. Data as of October 1, 2026.
What is a freeze warning?
A freeze warning means temperatures at or below 32°F are expected during the growing season, enough to kill crops and sensitive plants. Since 2024-2025 it also covers the colder nights that had a hard freeze warning of their own. A warning means the hazard is happening, about to happen, or very likely: act now to protect people and property. AreaZine's counts include the hard freeze warnings issued before the change. The national record · Every warning type in Arizona.