National Weather ServiceColoradoWinter Weather AdvisoryArchive to October 1, 2026
Winter Weather Advisories in Colorado
The National Weather Service issued 108 winter weather advisories for Colorado in 2025 and 120 a year on average in 2008-2025; in 2021-2025 it had the 8th most of any state. 2026 through September: 45, 42% below the average of 77 for those months in 2008-2025. Elkhead and Park Mountains was covered most often (395 times since 2008).
How many winter weather advisories does Colorado get?
Every winter weather advisory that covered part of Colorado. 2026 is an outline: the year is not over.
The numbers
| Year | Count |
|---|---|
| 2026 (through September) | 45 |
| 2025 | 108 |
| 2024 | 121 |
| 2023 | 132 |
| 2022 | 117 |
| 2021 | 117 |
| 2020 | 108 |
| 2019 | 155 |
| 2018 | 140 |
| 2017 | 108 |
| 2016 | 110 |
| 2015 | 121 |
| 2014 | 147 |
| 2013 | 120 |
| 2012 | 101 |
| 2011 | 161 |
| 2010 | 117 |
| 2009 | 128 |
| 2008 | 52 |
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 Colorado 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 Colorado?
| County or forecast zone | Since 2008 | Since 2023 | Last issued |
|---|---|---|---|
| Elkhead and Park Mountains | 395 | 69 | May 18, 2026 |
| Gore and Elk Mountains/Central Mountain Valleys | 387 | 68 | May 5, 2026 |
| South and Southeast Grand/West Central and Southwest Boulder/Gilpin/Clear Creek/Summit/North and West Park Counties Above 9000 Feet | 368 | 74 | May 18, 2026 |
| South and East Jackson/Larimer/North and Northeast Grand/Northwest Boulder Counties Above 9000 Feet | 344 | 70 | May 18, 2026 |
| Western Mosquito Range/East Lake County Above 11000 Ft | 338 | 52 | May 5, 2026 |
| West Jackson and West Grand Counties Above 9000 Feet | 326 | 64 | May 18, 2026 |
| Northwestern San Juan Mountains | 325 | 59 | May 5, 2026 |
| West Elk and Sawatch Mountains | 305 | 54 | May 5, 2026 |
| Eastern Sawatch Mountains above 11000 Ft | 302 | 64 | May 5, 2026 |
| Grand and Battlement Mesas | 294 | 50 | April 26, 2026 |
| Southwest San Juan Mountains | 272 | 54 | May 5, 2026 |
| Flattops | 251 | 0 | March 29, 2019 |
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 weather advisory?
A winter weather advisory covers snow, sleet or freezing rain that will be a nuisance and can make roads slippery, below warning amounts. An advisory is issued for a hazard less serious than a warning that can still cause inconvenience or danger if people are not careful. The national record · Every warning type in Colorado.