When to plant in Adelanto, CA
USDA Zone 8bAdelanto, California frost dates, USDA zone, and a full-year planting calendar, drawn from the nearest NOAA station and tuned to the local season.
Zone 8b means many perennials and even some tender shrubs overwinter in Adelanto, while your frost dates still decide when annuals go out.
The average last spring frost in Adelanto is now 12 days earlier than in the 1981–2010 normals. See how frost dates are shifting nationwide →
Frost probability
VICTORVILLE · 1991–2020The date the last spring and first fall frost occur, by threshold and probability. A 90% date is later in spring — and earlier in fall — than a 10% date; the 50% · 32°F row is what most gardeners plan around. These are Adelanto’s own odds, recorded at VICTORVILLE.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | Apr 30 | Apr 11 | Mar 22 | Oct 16 | Nov 1 | Nov 14 |
| 32°F | Apr 12 | Mar 18 | Feb 23 | Oct 27 | Nov 11 | Nov 26 |
| 28°F | Mar 19 | Feb 22 | Jan 27 | Nov 7 | Nov 24 | Dec 11 |
Download this table as CSV ↓ — every threshold and probability, plus this city’s planting-window dates.
What to plant now
TODAY · JULY 19Full-year planting calendar
Each bar is the exact window to take a planting action in Adelanto, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 24 km · complete 32°F normalsWhen stations disagree by more than a few days, that spread is real microclimate variation — elevation, water, urban heat. Judge which station best matches your own yard.
Adelanto planting FAQ
When is the last spring frost in Adelanto, CA?
Plan for the last spring frost in Adelanto around March 18 (the date it has a 50% chance of a 32°F freeze). Anything frost-sensitive should go out after it.
When is the first fall frost in Adelanto, CA?
In Adelanto, the first 32°F freeze of fall lands around November 11 on average. Time your last harvests and any season-extension cover before it.
What hardiness zone is Adelanto in?
Adelanto is in USDA hardiness zone 8b. In zone 8b, winters are mild — many tender perennials overwinter here.
How long is the growing season in Adelanto?
There are roughly 238 frost-free days in Adelanto (a long growing season), running from the average last frost around March 18 to the first fall frost near November 11.
When should I plant tomatoes in Adelanto?
In Adelanto, start tomato seeds indoors around January 21–February 4, then transplant seedlings outdoors around March 25 once the danger of frost has passed.
Never miss a window in Adelanto
An email when it’s time to start seeds, transplant, and sow — timed to Adelanto’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Victorville · 10 km
- Phelan · 18 km
- Apple Valley · 22 km
- Hesperia · 23 km
- Lake Los Angeles · 36 km
- Lake Arrowhead · 44 km
- Sun Village · 47 km
- Muscoy · 48 km
Frost dates recorded at VICTORVILLE, 15 km from the city center · 1991–2020 NOAA climate normals · zone from the USDA/PRISM 2023 map. How we compute this.
BlissGarden. "When to Plant in Adelanto, CA — Frost Dates & Zone 8b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00049325. Retrieved from https://blissgarden.com/california/adelanto.