When to plant in Ogden, UT
USDA Zone 6bOgden, 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 6b, Ogden gardeners can grow many hardy perennials, while the last and first frost still dictate the annual vegetable calendar.
Frost probability
OGDEN PIONEER PH · 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 Ogden’s own odds, recorded at OGDEN PIONEER PH.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 29 | May 4 | Apr 21 | Sep 30 | Oct 12 | Oct 25 |
| 32°F | May 6 | Apr 21 | Apr 2 | Oct 8 | Oct 23 | Nov 6 |
| 28°F | Apr 21 | Apr 5 | Mar 12 | Oct 20 | Nov 3 | Nov 17 |
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 Ogden, 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.
Ogden planting FAQ
When is the last spring frost in Ogden, UT?
Plan for the last spring frost in Ogden around April 21 (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 Ogden, UT?
In Ogden, the first 32°F freeze of fall lands around October 23 on average. Time your last harvests and any season-extension cover before it.
What hardiness zone is Ogden in?
Ogden is in USDA hardiness zone 6b. In zone 6b, winters are moderate — most common vegetables grow well in season.
How long is the growing season in Ogden?
Ogden has about 185 frost-free days — a moderate growing season — between the average last spring frost (April 21) and first fall frost (October 23).
When should I plant tomatoes in Ogden?
For Ogden, sow tomatoes indoors about February 24–March 10 and move the seedlings out around April 28, after the last spring frost.
Never miss a window in Ogden
An email when it’s time to start seeds, transplant, and sow — timed to Ogden’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- South Ogden · 6 km
- West Haven · 7 km
- Roy · 9 km
- North Ogden · 10 km
- Pleasant View · 11 km
- Clinton · 13 km
- Clearfield · 15 km
- West Point · 16 km
Frost dates recorded at OGDEN PIONEER PH, 2 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 Ogden, UT — Frost Dates & Zone 6b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00426404. Retrieved from https://blissgarden.com/utah/ogden.