USDA hardiness zone lookup
Clearfield, UT — USDA Zone 6b
Clearfield, Utah · 173-day growing season
Frost dates and growing season in Clearfield
| USDA hardiness zone | Zone 6b |
|---|---|
| Average last spring frost | April 27 |
| Average first fall frost | October 17 |
| Growing season length | ~173 days |
| Temperature range (F) | -10 to 0°F |
| Temperature range (C) | -23 to -18°C |
All of Clearfield's mapped ZIP codes fall in the same hardiness band, Zone 6b.
These are 50%-probability averages modeled from Clearfield's USDA hardiness zone and regional climate normals — not a single-station reading. In a typical year the last spring frost will have passed by April 27, but a colder-than-average year can run 1-2 weeks later. Plant tender crops (tomatoes, peppers, basil) once both soil and night temperatures are consistently warm — a thermometer beats the calendar.
Growing season in Clearfield
Clearfield, Utah sits in USDA Zone 6b, with roughly 173 frost-free days between an average last spring frost around April 27 and a first fall frost around October 17. That is a standard temperate season — most common vegetables finish comfortably, and a single main planting plus one succession round works well.
What grows in Clearfield
Clearfield falls in USDA Zone 6b, so the same hardiness constraints apply as the full Zone 6 guide. Vegetables, herbs, and fruit trees rated to Zone 6b (or hardier) will overwinter here in a typical year.
- Tomatoes (all types)
- Peppers, eggplant
- Squash, melons, cucumbers
- Beans, peas
- Sweet corn
- Apples, pears, peaches, plums
- Cherries, blueberries
- Asparagus, rhubarb
- Garlic (fall-planted)
- Strawberries
What to plant in Clearfield this week
Clearfield is in high summer — most spring plantings are in. Keep an eye on watering and start planning your fall crop. Cool-season seedlings (broccoli, cabbage, lettuce) can be started indoors for a fall transplant.
- When to plant tomatoes in zone 6
- When to plant peppers in zone 6
- When to plant bush beans in zone 6
- When to plant cucumbers in zone 6
- When to plant basil in zone 6
Full planting calendar for Clearfield
Crop-by-crop sowing, transplant, and harvest dates calibrated to zone 6 averages:
- When to plant tomatoes in zone 6
- When to plant peppers in zone 6
- When to plant basil in zone 6
- When to plant garlic in zone 6
- When to plant lettuce in zone 6
- When to plant bush beans in zone 6
- When to plant cucumbers in zone 6
- When to plant summer squash in zone 6
- When to plant peas in zone 6
- When to plant carrots in zone 6
ZIP codes in Clearfield
Drill down to the precise frost window and planting calendar for a specific ZIP in Clearfield:
Local microclimate notes
Zone tables give you the average — but Clearfieldgardens vary. South-facing walls and paved areas can run a full half-zone warmer than the published rating. Low-lying spots, frost pockets, and shaded north sides can run colder. If you've gardened here a few seasons, your own frost record — the last time you actually got frost damage — beats any national average.
Source and methodology
Hardiness zone from the USDA Plant Hardiness Zone Map (2023 revision). Frost-date and growing-season figures are modeled from Clearfield's USDA hardiness zone and regional NOAA 1991-2020 climate normals — zone-level estimates, not a per-station record, so treat them as planning guidance and confirm against your own local frost history. Crop recommendations draw on US Cooperative Extension references, curated by the Growli editorial team. Last reviewed June 2026.
Other cities in Utah
- Logan, UT — USDA Zone 5b
- Midvale, UT — USDA Zone 7a
- Ogden, UT — USDA Zone 7a
- Orem, UT — USDA Zone 6b
- Provo, UT — USDA Zone 6b
- Saint George, UT — USDA Zone 8b
- Salt Lake City, UT — USDA Zone 7a
- Sandy, UT — USDA Zone 6b
- South Jordan, UT — USDA Zone 6b
- West Jordan, UT — USDA Zone 7a
- West Valley City, UT — USDA Zone 7a
- All of Utah by zone