National Weather ServiceColoradoFrost AdvisoryArchive to October 1, 2026
Frost Advisories in Colorado
The National Weather Service issued 13 frost advisories for Colorado in 2025 and 12 a year on average in 2008-2025; in 2021-2025 it had the 30th most of any state. 2026 through September: 5, in line with the average of 5 for those months in 2008-2025. Kit Carson County was covered most often (68 times since 2008).
How many frost advisories does Colorado get?
Every frost advisory that covered part of Colorado. 2026 is an outline: the year is not over.
The numbers
| Year | Count |
|---|---|
| 2026 (through September) | 5 |
| 2025 | 13 |
| 2024 | 18 |
| 2023 | 3 |
| 2022 | 19 |
| 2021 | 9 |
| 2020 | 17 |
| 2019 | 19 |
| 2018 | 2 |
| 2017 | 8 |
| 2016 | 7 |
| 2015 | 17 |
| 2014 | 18 |
| 2013 | 5 |
| 2012 | 11 |
| 2011 | 17 |
| 2010 | 15 |
| 2009 | 2 |
| 2008 | 8 |
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 |
|---|---|---|---|
| Kit Carson County | 68 | 5 | May 19, 2026 |
| Yuma County | 68 | 6 | May 19, 2026 |
| Cheyenne County | 62 | 4 | May 19, 2026 |
| Northeast Weld County | 46 | 7 | May 19, 2026 |
| Central and South Weld County | 44 | 7 | May 19, 2026 |
| Morgan County | 42 | 4 | May 19, 2026 |
| Larimer County Below 6000 Feet/Northwest Weld County | 40 | 7 | May 19, 2026 |
| North and Northeast Elbert County Below 6000 Feet/North Lincoln County | 40 | 7 | May 19, 2026 |
| Logan County | 38 | 3 | May 19, 2026 |
| Washington County | 36 | 5 | May 19, 2026 |
| Central and East Adams and Arapahoe Counties | 35 | 4 | May 19, 2026 |
| Colorado Springs Vicinity/Southern El Paso County/Rampart Range Below 7400 Ft | 33 | 8 | May 19, 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 frost advisory?
A frost advisory means frost is expected on clear, calm nights during the growing season, with temperatures a few degrees above freezing. 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.