When to plant in Mapleton, UT
USDA Zone 7aEverything below — frost dates, hardiness zone, and what to plant when in Mapleton, Utah — is derived from the closest NOAA station with complete climate normals.
In zone 7a, Mapleton supports a wide range of perennials year-round; the frost dates above are what set your annual vegetable timing.
Frost probability
SPANISH FK PWR HOUSE · 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 Mapleton’s own odds, recorded at SPANISH FK PWR HOUSE.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 31 | May 11 | Apr 26 | Sep 22 | Oct 6 | Oct 20 |
| 32°F | May 13 | Apr 25 | Apr 10 | Oct 4 | Oct 18 | Nov 1 |
| 28°F | Apr 25 | Apr 9 | Mar 20 | Oct 14 | Oct 30 | Nov 13 |
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 Mapleton, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 22 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.
Mapleton planting FAQ
When is the last spring frost in Mapleton, UT?
On average, the last spring frost in Mapleton is around April 25 (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 Mapleton, UT?
Expect Mapleton's first fall frost near October 18 — a 50% chance of 32°F by that date. Bring in or cover tender crops ahead of it.
What hardiness zone is Mapleton in?
Mapleton 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 Mapleton?
Mapleton has about 176 frost-free days — a moderate growing season — between the average last spring frost (April 25) and first fall frost (October 18).
When should I plant tomatoes in Mapleton?
For Mapleton, sow tomatoes indoors about February 28–March 14 and move the seedlings out around May 2, after the last spring frost.
Never miss a window in Mapleton
An email when it’s time to start seeds, transplant, and sow — timed to Mapleton’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Spanish Fork · 6 km
- Springville · 6 km
- Salem · 11 km
- Provo · 15 km
- Payson · 17 km
- Orem · 23 km
- Santaquin · 25 km
- Vineyard · 26 km
Frost dates recorded at SPANISH FK PWR HOUSE, 5 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 Mapleton, UT — Frost Dates & Zone 7a." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00428119. Retrieved from https://blissgarden.com/utah/mapleton.