When to plant in Henderson, NV
USDA Zone 9bHenderson, Nevada frost dates, USDA zone, and a full-year planting calendar, drawn from the nearest NOAA station and tuned to the local season.
With about 329 frost-free days, Henderson supports back-to-back plantings; stagger sowings every few weeks to keep beds productive spring through fall. In zone 9b, frost is a minor factor for Henderson — most perennials thrive, and annual vegetables can go out early and stay late.
The average last spring frost in Henderson is now 9 days earlier than in the 1981–2010 normals. See how frost dates are shifting nationwide →
Frost probability
LAS VEGAS MCCARRAN 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 Henderson’s own odds, recorded at LAS VEGAS MCCARRAN AP.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | Mar 4 | Feb 11 | Jan 19 | Nov 18 | Dec 3 | Dec 17 |
| 32°F | Feb 14 | Jan 20 | Dec 20 | Nov 28 | Dec 15 | Jan 7 |
| 28°F | Jan 29 | Dec 31 | Dec 10 | Dec 6 | Dec 26 | Jan 22 |
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 Henderson, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 21 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.
Henderson planting FAQ
When is the last spring frost in Henderson, NV?
On average, the last spring frost in Henderson is around January 20 (50% probability at 32°F, from 1991–2020 NOAA normals). Wait until after this date to set out tender plants like tomatoes and peppers.
When is the first fall frost in Henderson, NV?
Expect Henderson's first fall frost near December 15 — a 50% chance of 32°F by that date. Bring in or cover tender crops ahead of it.
What hardiness zone is Henderson in?
Henderson is in USDA hardiness zone 9b. In zone 9b, winters are mild — many tender perennials overwinter here.
How long is the growing season in Henderson?
Henderson has about 329 frost-free days — a long growing season — between the average last spring frost (January 20) and first fall frost (December 15).
When should I plant tomatoes in Henderson?
For Henderson, sow tomatoes indoors about November 25–December 9 and move the seedlings out around January 27, after the last spring frost.
Never miss a window in Henderson
An email when it’s time to start seeds, transplant, and sow — timed to Henderson’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Whitney · 10 km
- Paradise · 13 km
- Winchester · 17 km
- Enterprise · 18 km
- Sunrise Manor · 19 km
- Boulder City · 21 km
- Spring Valley · 23 km
- Summerlin South · 30 km
Frost dates recorded at LAS VEGAS MCCARRAN AP, 14 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 Henderson, NV — Frost Dates & Zone 9b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USW00023169. Retrieved from https://blissgarden.com/nevada/henderson.