When to plant in West Valley City, UT
USDA Zone 7bEverything below — frost dates, hardiness zone, and what to plant when in West Valley City, Utah — is derived from the closest NOAA station with complete climate normals.
Zone 7b means many perennials and even some tender shrubs overwinter in West Valley City, while your frost dates still decide when annuals go out.
The average last spring frost in West Valley City is now 13 days earlier than in the 1981–2010 normals. See how frost dates are shifting nationwide →
Frost probability
SALT LAKE CITY INTL AP · 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 West Valley City’s own odds, recorded at SALT LAKE CITY INTL AP.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 14 | Apr 27 | Apr 8 | Oct 7 | Oct 19 | Nov 2 |
| 32°F | Apr 30 | Apr 8 | Mar 17 | Oct 17 | Oct 31 | Nov 13 |
| 28°F | Apr 8 | Mar 15 | Feb 27 | Oct 27 | Nov 10 | Nov 24 |
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 West Valley City, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 16 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.
West Valley City planting FAQ
When is the last spring frost in West Valley City, UT?
Plan for the last spring frost in West Valley City around April 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 West Valley City, UT?
In West Valley City, the first 32°F freeze of fall lands around October 31 on average. Time your last harvests and any season-extension cover before it.
What hardiness zone is West Valley City in?
West Valley City 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 West Valley City?
There are roughly 206 frost-free days in West Valley City (a moderate growing season), running from the average last frost around April 8 to the first fall frost near October 31.
When should I plant tomatoes in West Valley City?
In West Valley City, start tomato seeds indoors around February 11–February 25, then transplant seedlings outdoors around April 15 once the danger of frost has passed.
Never miss a window in West Valley City
An email when it’s time to start seeds, transplant, and sow — timed to West Valley City’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Kearns · 4 km
- Taylorsville · 6 km
- West Jordan · 10 km
- South Salt Lake · 10 km
- Murray · 11 km
- Salt Lake City · 12 km
- Midvale · 13 km
- South Jordan · 15 km
Frost dates recorded at SALT LAKE CITY INTL AP, 11 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 West Valley City, UT — Frost Dates & Zone 7b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USW00024127. Retrieved from https://blissgarden.com/utah/west-valley-city.