When to plant in Logan, UT
USDA Zone 6aLogan, 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 6a, Logan gardeners can grow many hardy perennials, while the last and first frost still dictate the annual vegetable calendar.
Frost probability
LOGAN RADIO KVNU · 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 Logan’s own odds, recorded at LOGAN RADIO KVNU.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | Jun 13 | May 27 | May 10 | Sep 6 | Sep 21 | Oct 5 |
| 32°F | Jun 2 | May 8 | Apr 25 | Sep 18 | Oct 2 | Oct 15 |
| 28°F | May 7 | Apr 23 | Apr 6 | Sep 29 | Oct 14 | Oct 26 |
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 Logan, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 5 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.
Logan planting FAQ
When is the last spring frost in Logan, UT?
Plan for the last spring frost in Logan around May 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 Logan, UT?
Expect Logan's first fall frost near October 2 — a 50% chance of 32°F by that date. Bring in or cover tender crops ahead of it.
What hardiness zone is Logan in?
Logan is in USDA hardiness zone 6a. In zone 6a, winters are moderate — most common vegetables grow well in season.
How long is the growing season in Logan?
Logan has about 147 frost-free days — a short growing season — between the average last spring frost (May 8) and first fall frost (October 2).
When should I plant tomatoes in Logan?
For Logan, sow tomatoes indoors about March 13–March 27 and move the seedlings out around May 15, after the last spring frost.
Never miss a window in Logan
An email when it’s time to start seeds, transplant, and sow — timed to Logan’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- North Logan · 5 km
- Smithfield · 11 km
- Hyrum · 12 km
- Tremonton · 29 km
- Brigham City · 31 km
- Pleasant View · 48 km
- North Ogden · 48 km
- Ogden · 58 km
Frost dates recorded at LOGAN RADIO KVNU, 1 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 Logan, UT — Frost Dates & Zone 6a." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00425182. Retrieved from https://blissgarden.com/utah/logan.