When to plant in Kearns, UT
USDA Zone 7bEverything below — frost dates, hardiness zone, and what to plant when in Kearns, Utah — is derived from the closest NOAA station with complete climate normals.
In zone 7b, Kearns supports a wide range of perennials year-round; the frost dates above are what set your annual vegetable timing.
The average last spring frost in Kearns is now 13 days earlier than in the 1981–2010 normals. See how frost dates are shifting nationwide →
Frost probability
SALT LAKE CITY INTL 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 Kearns’s own odds, recorded at SALT LAKE CITY INTL AP.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 14 | Apr 27 | Apr 8 | Oct 7 | Oct 19 | Nov 2 |
| 32°F | Apr 30 | Apr 8 | Mar 17 | Oct 17 | Oct 31 | Nov 13 |
| 28°F | Apr 8 | Mar 15 | Feb 27 | Oct 27 | Nov 10 | Nov 24 |
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 Kearns, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 18 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.
Kearns planting FAQ
When is the last spring frost in Kearns, UT?
Plan for the last spring frost in Kearns around April 8 (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 Kearns, UT?
Expect Kearns's first fall frost near October 31 — a 50% chance of 32°F by that date. Bring in or cover tender crops ahead of it.
What hardiness zone is Kearns in?
Kearns is in USDA hardiness zone 7b. In zone 7b, winters are moderate — most common vegetables grow well in season.
How long is the growing season in Kearns?
Kearns has about 206 frost-free days — a moderate growing season — between the average last spring frost (April 8) and first fall frost (October 31).
When should I plant tomatoes in Kearns?
For Kearns, sow tomatoes indoors about February 11–February 25 and move the seedlings out around April 15, after the last spring frost.
Never miss a window in Kearns
An email when it’s time to start seeds, transplant, and sow — timed to Kearns’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- West Valley City · 4 km
- Taylorsville · 5 km
- West Jordan · 6 km
- Murray · 10 km
- Midvale · 11 km
- South Jordan · 11 km
- South Salt Lake · 11 km
- Salt Lake City · 15 km
Frost dates recorded at SALT LAKE CITY INTL 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 Kearns, UT — Frost Dates & Zone 7b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USW00024127. Retrieved from https://blissgarden.com/utah/kearns.