National Weather ServiceColoradoHeat AdvisoryArchive to October 1, 2026
Heat Advisories in Colorado
The National Weather Service issued 9 heat advisories for Colorado in 2025 and 3 a year on average in 2008-2025; in 2021-2025 it had the 39th most of any state. 2026 through September: 23, 590% above the average of 3 for those months in 2008-2025. Canon City Vicinity/Eastern Fremont County was covered most often (33 times since 2008).
How many heat advisories does Colorado get?
Every heat advisory that covered part of Colorado. 2026 is an outline: the year is not over.
The numbers
| Year | Count |
|---|---|
| 2026 (through September) | 23 |
| 2025 | 9 |
| 2024 | 21 |
| 2023 | 13 |
| 2022 | 10 |
| 2021 | 2 |
| 2020 | 1 |
| 2019 | 0 |
| 2018 | 0 |
| 2017 | 1 |
| 2016 | 0 |
| 2015 | 0 |
| 2014 | 0 |
| 2013 | 0 |
| 2012 | 0 |
| 2011 | 0 |
| 2010 | 0 |
| 2009 | 0 |
| 2008 | 3 |
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 |
|---|---|---|---|
| Canon City Vicinity/Eastern Fremont County | 33 | 33 | August 11, 2026 |
| Colorado Springs Vicinity/Southern El Paso County/Rampart Range Below 7400 Ft | 32 | 32 | August 11, 2026 |
| Pueblo Vicinity/Pueblo County Below 6300 Feet | 32 | 32 | August 11, 2026 |
| Northern El Paso County/Monument Ridge/Rampart Range Below 7500 Ft | 30 | 30 | August 11, 2026 |
| North Douglas County Below 6000 Feet/Denver/West Adams and Arapahoe Counties/East Broomfield County | 27 | 19 | August 8, 2026 |
| Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County | 24 | 16 | August 8, 2026 |
| Larimer County Below 6000 Feet/Northwest Weld County | 23 | 15 | August 8, 2026 |
| La Junta Vicinity/Otero County | 22 | 22 | August 10, 2026 |
| Lamar Vicinity/Prowers County | 20 | 20 | August 10, 2026 |
| Las Animas Vicinity/Bent County | 20 | 20 | August 10, 2026 |
| Central and South Weld County | 18 | 10 | August 2, 2026 |
| Crowley County | 17 | 17 | August 9, 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 heat advisory?
A heat advisory means heat that can make people ill, especially those without cooling, below the office's extreme heat warning values. 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.