When to plant in South Jordan, UT
USDA Zone 7aHere are the average frost dates, USDA hardiness zone, and a month-by-month planting calendar for South Jordan, Utah — all computed from South Jordan's nearest NOAA weather station.
Zone 7a means many perennials and even some tender shrubs overwinter in South Jordan, while your frost dates still decide when annuals go out.
Frost probability
DRAPER-POINT OF MTN · 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 South Jordan’s own odds, recorded at DRAPER-POINT OF MTN.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 22 | May 2 | Apr 17 | Sep 27 | Oct 10 | Oct 23 |
| 32°F | May 6 | Apr 18 | Mar 31 | Oct 7 | Oct 22 | Nov 5 |
| 28°F | Apr 17 | Mar 31 | Mar 7 | Oct 18 | Nov 2 | Nov 18 |
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 South Jordan, 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.
South Jordan planting FAQ
When is the last spring frost in South Jordan, UT?
South Jordan's average last spring frost falls near April 18 — 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 South Jordan, UT?
The first fall frost in South Jordan typically arrives around October 22 (50% probability at 32°F). Harvest or protect frost-sensitive crops before then.
What hardiness zone is South Jordan in?
South Jordan is in USDA hardiness zone 7a. In zone 7a, winters are moderate — most common vegetables grow well in season.
How long is the growing season in South Jordan?
There are roughly 187 frost-free days in South Jordan (a moderate growing season), running from the average last frost around April 18 to the first fall frost near October 22.
When should I plant tomatoes in South Jordan?
In South Jordan, start tomato seeds indoors around February 21–March 7, then transplant seedlings outdoors around April 25 once the danger of frost has passed.
Never miss a window in South Jordan
An email when it’s time to start seeds, transplant, and sow — timed to South Jordan’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Riverton · 5 km
- West Jordan · 5 km
- Herriman · 7 km
- Bluffdale · 10 km
- Midvale · 11 km
- Kearns · 11 km
- Taylorsville · 12 km
- Sandy · 12 km
Frost dates recorded at DRAPER-POINT OF MTN, 11 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 South Jordan, UT — Frost Dates & Zone 7a." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00422235. Retrieved from https://blissgarden.com/utah/south-jordan.