Frost dates in Douglas County, Colorado
The average last spring frost in Douglas County falls May 2 to May 17 and the average first fall frost Oct 1 to Oct 11, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 5b to 6a. Places: Castle Pines, Castle Rock, Franktown, Highlands Ranch, Lone Tree, Louviers. 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 |
|---|---|---|---|---|
| 80104 | Castle Rock | May 9 | Oct 2 | 5b |
| 80108 | Castle Pines | May 9 | Oct 2 | 5b |
| 80109 | Castle Rock | May 9 | Oct 2 | 5b |
| 80116 | Franktown | May 16 | Oct 2 | 5b |
| 80118 | Perry Park | May 14 | Oct 1 | 5b |
| 80124 | Lone Tree | May 5 | Oct 8 | 6a |
| 80125 | Roxborough Park | May 8 | Oct 3 | 5b |
| 80126 | Highlands Ranch | May 5 | Oct 8 | 6a |
| 80129 | Highlands Ranch | May 2 | Oct 11 | 6a |
| 80130 | Highlands Ranch | May 5 | Oct 8 | 6a |
| 80131 | Louviers | May 16 | Oct 1 | 5b |
| 80134 | Parker | May 9 | Oct 3 | 5b |
| 80135 | Sedalia | May 17 | Oct 1 | 5b |
| 80138 | Parker | May 9 | Oct 3 | 5b |
Nearby counties
Arapahoe County Denver County Jefferson County Adams County Broomfield County El Paso County
All Colorado counties · Download Colorado frost dates (CSV)
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