Frost dates in Adams County, Colorado
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The average last spring frost in Adams County falls May 2 to May 13 and the average first fall frost Oct 2 to Oct 11, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 5b to 6a. Places: Aurora, Bennett, Berkley, Brighton, Comanche Creek, Commerce City. Pick a ZIP for 10% and 90% odds, soil temperature and the 7-day freeze forecast.
| ZIP | Place | Last spring frost | First fall frost | Zone |
|---|---|---|---|---|
| 80011 | Aurora | May 4 | Oct 8 | 6a |
| 80019 | Aurora | May 5 | Oct 9 | 6a |
| 80022 | Commerce City | May 3 | Oct 7 | 6a |
| 80024 | Derby | May 4 | Oct 8 | 6a |
| 80030 | Westminster | May 2 | Oct 11 | 6a |
| 80031 | Westminster | May 2 | Oct 11 | 6a |
| 80045 | Aurora | May 4 | Oct 8 | 6a |
| 80102 | Bennett | May 5 | Oct 9 | 6a |
| 80103 | Peoria | May 13 | Oct 2 | 5b |
| 80136 | Comanche Creek | May 13 | Oct 2 | 5b |
| 80221 | Berkley | May 2 | Oct 11 | 6a |
| 80229 | Thornton | May 2 | Oct 11 | 6a |
| 80233 | Thornton | May 2 | Oct 11 | 6a |
| 80234 | Westminster | May 2 | Oct 11 | 6a |
| 80241 | Thornton | May 2 | Oct 11 | 6a |
| 80260 | Thornton | May 2 | Oct 11 | 6a |
| 80601 | Brighton | May 3 | Oct 7 | 5b |
| 80602 | Thornton | May 3 | Oct 7 | 6a |
| 80603 | Lochbuie | May 5 | Oct 9 | 5b |
| 80640 | Commerce City | May 3 | Oct 7 | 5b |
Nearby counties
Denver County Arapahoe County Broomfield County Jefferson County Douglas County Boulder County
All Colorado counties · Download Colorado frost dates (CSV)
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