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USDA hardiness zone lookup

Midvale, UT — USDA Zone 7a

Midvale, Utah · 177-day growing season

Frost dates and growing season in Midvale

USDA hardiness zoneZone 7a
Average last spring frostApril 25
Average first fall frostOctober 19
Growing season length~177 days
Temperature range (F)0 to 10°F
Temperature range (C)-18 to -12°C

All of Midvale's mapped ZIP codes fall in the same hardiness band, Zone 7a.

These are 50%-probability averages modeled from Midvale'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 25, 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 Midvale

Midvale, Utah sits in USDA Zone 7a, with roughly 177 frost-free days between an average last spring frost around April 25 and a first fall frost around October 19. 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 Midvale

Midvale falls in USDA Zone 7a, so the same hardiness constraints apply as the full Zone 7 guide. Vegetables, herbs, and fruit trees rated to Zone 7a (or hardier) will overwinter here in a typical year.

What to plant in Midvale this week

Midvale 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.

Full planting calendar for Midvale

Crop-by-crop sowing, transplant, and harvest dates calibrated to zone 7 averages:

ZIP codes in Midvale

Drill down to the precise frost window and planting calendar for a specific ZIP in Midvale:

Local microclimate notes

Zone tables give you the average — but Midvalegardens 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 Midvale'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.

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