Frost dates for Sierra Vista, Arizona
In a typical year, Sierra Vista’s last spring frost lands around Apr 5 and the first fall frost around Nov 9, a growing season of about 218 days. These are odds drawn from 30-year NOAA climate normals, not a promise. USDA zone 8b.
Right now the growing season is open, with about 15 days until the typical first fall frost.
| Odds | Last spring frost | First fall frost |
|---|---|---|
| 10 percent | Mar 15 | Oct 23 |
| 50 percent | Apr 5 | Nov 9 |
| 90 percent | Apr 21 | Nov 23 |
A 10 percent year is an early year, a 90 percent year a late one. Frost-sensitive planting usually waits for the 90 percent side of the last-frost band.
Soil in Sierra Vista is typically around 62°F at 4 inches this time of year, estimated from the last two weeks of normal air temperatures.
Plantable now in Sierra Vista
- Garlic (Music)
Timing comes from the same temperature engine the app uses, run against Sierra Vista’s normals for today.
Common questions
When is the last frost in Sierra Vista, Arizona?
Sierra Vista’s last spring frost falls around April 5 in a typical year. One year in ten it is done by March 15, and one year in ten frost holds on until April 21. Frost-sensitive planting usually waits for the late side of that band.
When is the first fall frost in Sierra Vista?
The first fall frost arrives around November 9 in a typical year, as early as October 23 in an early year and as late as November 23 in a late one.
How long is the growing season in Sierra Vista?
About 218 days, counted between the typical last spring frost and the typical first fall frost.
What USDA zone is Sierra Vista in?
Sierra Vista is in USDA hardiness zone 8b under the 2023 USDA Plant Hardiness Zone Map.
Dates come from 30-year NOAA climate normals for the nearest reporting station. They describe odds, not a forecast.
Nearby cities
- Tucson, AZ (around Jan 20 to Dec 17)
- Safford, AZ (around Mar 25 to Nov 9)
- Gilbert, AZ (around Feb 1 to Dec 10)
- Chandler, AZ (around Feb 13 to Dec 5)
- Deming, NM (around Apr 7 to Nov 3)
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