National Weather ServiceArizonaWinter Storm WarningArchive to October 1, 2026
Winter Storm Warnings in Arizona
The National Weather Service issued 3 winter storm warnings for Arizona in 2025 and 10 a year on average in 2008-2025; in 2021-2025 it had the 32nd most of any state. 2026 through September: 2, 71% below the average of 7 for those months in 2008-2025. Eastern Mogollon Rim was covered most often (55 times since 2008).
How many winter storm warnings does Arizona get?
Every winter storm warning that covered part of Arizona. 2026 is an outline: the year is not over.
The numbers
| Year | Count |
|---|---|
| 2026 (through September) | 2 |
| 2025 | 3 |
| 2024 | 9 |
| 2023 | 23 |
| 2022 | 3 |
| 2021 | 10 |
| 2020 | 3 |
| 2019 | 17 |
| 2018 | 5 |
| 2017 | 8 |
| 2016 | 11 |
| 2015 | 6 |
| 2014 | 5 |
| 2013 | 8 |
| 2012 | 8 |
| 2011 | 13 |
| 2010 | 19 |
| 2009 | 14 |
| 2008 | 20 |
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 |
|---|---|---|---|
| Eastern Mogollon Rim | 55 | 12 | February 18, 2026 |
| Western Mogollon Rim | 55 | 14 | February 20, 2026 |
| Kaibab Plateau | 52 | 13 | February 20, 2026 |
| White Mountains | 52 | 10 | March 13, 2025 |
| Northern Gila County | 38 | 8 | March 7, 2025 |
| Coconino Plateau | 35 | 7 | February 6, 2024 |
| Grand Canyon Country | 34 | 6 | February 6, 2024 |
| White Mountains of Graham and Greenlee Counties including Hannagan Meadow | 33 | 8 | March 31, 2024 |
| Yavapai County Mountains | 32 | 5 | March 1, 2023 |
| Galiuro and Pinaleno Mountains including Mount Graham | 31 | 8 | March 31, 2024 |
| Northwest Deserts | 28 | 6 | February 8, 2024 |
| Santa Catalina and Rincon Mountains including Mount Lemmon/Summerhaven | 28 | 8 | March 31, 2024 |
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 winter storm warning?
A winter storm warning means significant snow, sleet or freezing rain is expected that will make travel very difficult or impossible. Each office sets the amounts for its area. A warning means the hazard is happening, about to happen, or very likely: act now to protect people and property. The national record · Every warning type in Arizona.