When to plant in Cedar City, UT
USDA Zone 6bEverything below — frost dates, hardiness zone, and what to plant when in Cedar City, Utah — is derived from the closest NOAA station with complete climate normals.
In zone 6b, Cedar City gardeners can grow many hardy perennials, while the last and first frost still dictate the annual vegetable calendar.
Frost probability
CEDAR 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 Cedar City’s own odds, recorded at CEDAR CITY.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | Jun 8 | May 20 | Apr 30 | Sep 23 | Oct 4 | Oct 19 |
| 32°F | May 28 | May 4 | Apr 19 | Sep 30 | Oct 13 | Oct 28 |
| 28°F | May 13 | Apr 22 | Apr 3 | Oct 6 | Oct 23 | Nov 10 |
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 Cedar City, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 10 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.
Cedar City planting FAQ
When is the last spring frost in Cedar City, UT?
Plan for the last spring frost in Cedar City around May 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 Cedar City, UT?
Expect Cedar City's first fall frost near October 13 — a 50% chance of 32°F by that date. Bring in or cover tender crops ahead of it.
What hardiness zone is Cedar City in?
Cedar City is in USDA hardiness zone 6b. In zone 6b, winters are moderate — most common vegetables grow well in season.
How long is the growing season in Cedar City?
Cedar City has about 162 frost-free days — a moderate growing season — between the average last spring frost (May 4) and first fall frost (October 13).
When should I plant tomatoes in Cedar City?
For Cedar City, sow tomatoes indoors about March 9–March 23 and move the seedlings out around May 11, after the last spring frost.
Never miss a window in Cedar City
An email when it’s time to start seeds, transplant, and sow — timed to Cedar City’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Hurricane · 64 km
- Washington · 71 km
- St. George · 80 km
- Mesquite · 133 km
- North Las Vegas · 235 km
- Sunrise Manor · 241 km
- Whitney · 247 km
- Winchester · 250 km
Frost dates recorded at CEDAR 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 Cedar City, UT — Frost Dates & Zone 6b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00421259. Retrieved from https://blissgarden.com/utah/cedar-city.