When to plant in Fort Mohave, AZ
USDA Zone 9bFort Mohave, Arizona frost dates, USDA zone, and a full-year planting calendar, drawn from the nearest NOAA station and tuned to the local season.
Fort Mohave 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. Heads up: the nearest complete-normals station is about 16 km from Fort Mohave, so your yard's frost dates can differ — a low spot or a paved city center can shift them by a week. In zone 9b, frost is a minor factor for Fort Mohave — most perennials thrive, and annual vegetables can go out early and stay late.
The average last spring frost in Fort Mohave 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 Fort Mohave’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 Fort Mohave, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 26 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.
Fort Mohave planting FAQ
When is the last spring frost in Fort Mohave, AZ?
Plan for the last spring frost in Fort Mohave around January 4 (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 Fort Mohave, AZ?
In Fort Mohave, the first 32°F freeze of fall lands around December 23 on average. Time your last harvests and any season-extension cover before it.
What hardiness zone is Fort Mohave in?
Fort Mohave is in USDA hardiness zone 9b. In zone 9b, winters are mild — many tender perennials overwinter here.
How long is the growing season in Fort Mohave?
Fort Mohave 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 Fort Mohave?
For Fort Mohave, 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 Fort Mohave
An email when it’s time to start seeds, transplant, and sow — timed to Fort Mohave’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Bullhead City · 14 km
- Kingman · 57 km
- New Kingman-Butler · 59 km
- Lake Havasu City · 61 km
- Boulder City · 99 km
- Henderson · 119 km
- Enterprise · 127 km
- Whitney · 129 km
Frost dates recorded at BULLHEAD CITY, 16 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 Fort Mohave, AZ — Frost Dates & Zone 9b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00021050. Retrieved from https://blissgarden.com/arizona/fort-mohave.