When to plant in Bullhead City, AZ
USDA Zone 10aBullhead City, Arizona frost dates, USDA zone, and a full-year planting calendar, drawn from the nearest NOAA station and tuned to the local season.
Bullhead City enjoys a long ~353-day frost-free season — you can succession-sow, fit in a second crop, and grow long-season heat-lovers with room to spare. In zone 10a, frost is a minor factor for Bullhead City — most perennials thrive, and annual vegetables can go out early and stay late.
The average last spring frost in Bullhead City is now 6 days earlier than in the 1981–2010 normals. See how frost dates are shifting nationwide →
Frost probability
BULLHEAD CITY · 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 Bullhead City’s own odds, recorded at BULLHEAD CITY.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | Feb 28 | Feb 1 | Dec 31 | Nov 24 | Dec 11 | Jan 2 |
| 32°F | Feb 5 | Jan 4 | Dec 12 | Dec 1 | Dec 23 | Jan 23 |
| 28°F | Jan 10 | Dec 26 | Dec 7 | Dec 7 | Dec 25 | Jan 8 |
Download this table as CSV ↓ — every threshold and probability, plus this city’s planting-window dates.
What to plant now
TODAY · JULY 19Nothing new to sow or transplant outdoors in the next few weeks — a seasonal lull. Check the full-year calendar below for the next window.
Full-year planting calendar
Each bar is the exact window to take a planting action in Bullhead City, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 40 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.
Bullhead City planting FAQ
When is the last spring frost in Bullhead City, AZ?
Bullhead City's average last spring frost falls near January 4 — 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 Bullhead City, AZ?
Expect Bullhead City's first fall frost near December 23 — a 50% chance of 32°F by that date. Bring in or cover tender crops ahead of it.
What hardiness zone is Bullhead City in?
Bullhead City is in USDA hardiness zone 10a. In zone 10a, winters are mild — many tender perennials overwinter here.
How long is the growing season in Bullhead City?
Bullhead City has about 353 frost-free days — a long growing season — between the average last spring frost (January 4) and first fall frost (December 23).
When should I plant tomatoes in Bullhead City?
For Bullhead City, sow tomatoes indoors about November 9–November 23 and move the seedlings out around January 11, after the last spring frost.
Never miss a window in Bullhead City
An email when it’s time to start seeds, transplant, and sow — timed to Bullhead City’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Fort Mohave · 14 km
- Kingman · 51 km
- New Kingman-Butler · 52 km
- Lake Havasu City · 73 km
- Boulder City · 86 km
- Henderson · 107 km
- Enterprise · 115 km
- Whitney · 117 km
Frost dates recorded at BULLHEAD CITY, 2 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 Bullhead City, AZ — Frost Dates & Zone 10a." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00021050. Retrieved from https://blissgarden.com/arizona/bullhead-city.