National Weather ServiceWyomingCold Weather AdvisoryArchive to October 1, 2026
Cold Weather Advisories in Wyoming
The National Weather Service issued 15 cold weather advisories for Wyoming in 2025 and 10 a year on average in 2008-2025; in 2021-2025 it had the 19th most of any state. 2026 through September: 5, 29% below the average of 7 for those months in 2008-2025. Northeastern Crook was covered most often (61 times since 2008).
How many cold weather advisories does Wyoming get?
Every cold weather advisory that covered part of Wyoming. 2026 is an outline: the year is not over.
The numbers
| Year | Count |
|---|---|
| 2026 (through September) | 5 |
| 2025 | 15 |
| 2024 | 9 |
| 2023 | 12 |
| 2022 | 24 |
| 2021 | 8 |
| 2020 | 3 |
| 2019 | 23 |
| 2018 | 9 |
| 2017 | 17 |
| 2016 | 7 |
| 2015 | 5 |
| 2014 | 17 |
| 2013 | 4 |
| 2012 | 2 |
| 2011 | 13 |
| 2010 | 6 |
| 2009 | 7 |
| 2008 | 7 |
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 Wyoming 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 Wyoming?
| County or forecast zone | Since 2008 | Since 2023 | Last issued |
|---|---|---|---|
| Northeastern Crook | 61 | 12 | January 24, 2026 |
| Western Crook | 56 | 11 | January 24, 2026 |
| Southern Campbell | 53 | 12 | January 24, 2026 |
| Wyoming Black Hills | 51 | 10 | January 24, 2026 |
| Laramie Valley | 48 | 5 | January 26, 2026 |
| Weston | 46 | 4 | February 24, 2023 |
| Niobrara County | 46 | 8 | January 25, 2026 |
| North Snowy Range Foothills | 44 | 5 | January 26, 2026 |
| Converse County Lower Elevations | 44 | 6 | January 26, 2026 |
| South Laramie Range | 42 | 5 | January 26, 2026 |
| Shirley Basin | 41 | 3 | January 25, 2026 |
| Central Carbon County | 41 | 5 | January 25, 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 cold weather advisory?
A cold weather advisory means cold temperatures or wind chills that can be dangerous to people without shelter. It replaced the wind chill advisory in 2024-2025. An advisory is issued for a hazard less serious than a warning that can still cause inconvenience or danger if people are not careful. AreaZine's counts include the wind chill advisories issued before the change. The national record · Every warning type in Wyoming.