When to plant in Kingman, AZ
USDA Zone 9aEverything below — frost dates, hardiness zone, and what to plant when in Kingman, Arizona — is derived from the closest NOAA station with complete climate normals.
In zone 9a, frost is a minor factor for Kingman — most perennials thrive, and annual vegetables can go out early and stay late.
Frost probability
KINGMAN MOHAVE CO AP · 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 Kingman’s own odds, recorded at KINGMAN MOHAVE CO AP.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 9 | Apr 20 | Mar 30 | Oct 14 | Oct 31 | Nov 13 |
| 32°F | Apr 21 | Apr 2 | Mar 8 | Oct 26 | Nov 11 | Nov 24 |
| 28°F | Apr 5 | Mar 6 | Feb 10 | Nov 6 | Nov 22 | Dec 7 |
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 Kingman, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
2 within 39 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.
Kingman planting FAQ
When is the last spring frost in Kingman, AZ?
Kingman's average last spring frost falls near April 2 — the 50% mark at 32°F in the 1991–2020 normals. Hold tender transplants until the risk has passed, then plant out.
When is the first fall frost in Kingman, AZ?
In Kingman, 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 Kingman in?
Kingman is in USDA hardiness zone 9a. In zone 9a, winters are mild — many tender perennials overwinter here.
How long is the growing season in Kingman?
Kingman has about 223 frost-free days — a long growing season — between the average last spring frost (April 2) and first fall frost (November 11).
When should I plant tomatoes in Kingman?
For Kingman, sow tomatoes indoors about February 5–February 19 and move the seedlings out around April 9, after the last spring frost.
Never miss a window in Kingman
An email when it’s time to start seeds, transplant, and sow — timed to Kingman’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- New Kingman-Butler · 5 km
- Bullhead City · 51 km
- Fort Mohave · 57 km
- Lake Havasu City · 84 km
- Boulder City · 107 km
- Henderson · 127 km
- Whitney · 135 km
- Paradise · 140 km
Frost dates recorded at KINGMAN MOHAVE CO AP, 8 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 Kingman, AZ — Frost Dates & Zone 9a." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USW00093167. Retrieved from https://blissgarden.com/arizona/kingman.