When to plant in Farmington, UT
USDA Zone 7bFarmington, Utah frost dates, USDA zone, and a full-year planting calendar, drawn from the nearest NOAA station and tuned to the local season.
In zone 7b, Farmington supports a wide range of perennials year-round; the frost dates above are what set your annual vegetable timing.
Frost probability
FARMINGTON 3 NW · 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 Farmington’s own odds, recorded at FARMINGTON 3 NW.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 24 | May 3 | Apr 19 | Sep 28 | Oct 9 | Oct 21 |
| 32°F | May 7 | Apr 19 | Apr 1 | Oct 6 | Oct 19 | Nov 4 |
| 28°F | Apr 19 | Apr 1 | Mar 12 | Oct 15 | Nov 1 | Nov 16 |
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 Farmington, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 14 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.
Farmington planting FAQ
When is the last spring frost in Farmington, UT?
On average, the last spring frost in Farmington is around April 19 (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 Farmington, UT?
The first fall frost in Farmington typically arrives around October 19 (50% probability at 32°F). Harvest or protect frost-sensitive crops before then.
What hardiness zone is Farmington in?
Farmington 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 Farmington?
Farmington has about 183 frost-free days — a moderate growing season — between the average last spring frost (April 19) and first fall frost (October 19).
When should I plant tomatoes in Farmington?
For Farmington, sow tomatoes indoors about February 22–March 8 and move the seedlings out around April 26, after the last spring frost.
Never miss a window in Farmington
An email when it’s time to start seeds, transplant, and sow — timed to Farmington’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Kaysville · 6 km
- Centerville · 7 km
- Layton · 11 km
- Woods Cross · 12 km
- Bountiful · 13 km
- North Salt Lake · 15 km
- Clearfield · 16 km
- Syracuse · 18 km
Frost dates recorded at FARMINGTON 3 NW, 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 Farmington, UT — Frost Dates & Zone 7b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00422726. Retrieved from https://blissgarden.com/utah/farmington.