West Valley City, UT frost dates
Last spring frostApr 8median date
First fall frostOct 31median date
Growing season206 daysfrost-free
Hardiness zone7bZone 7b
How West Valley City compares
- In 8 years out of 10, the last spring frost in West Valley City falls between March 17 and April 30, a 44-day window. The first fall frost falls between October 17 and November 13.
- The median last frost is 32 days earlier than the Utah median of May 10.
- Its 206-day growing season is longer than 93% of the 250 Utah places with a regular frost season (state median 148 days).
- The last frost is typical for zone 7b, where the median is Apr 5.
- The weather station records an average of 112 nights a year at or below 32°F.
- Compared with Salt Lake City, UT, 10 km away, the last frost here is 17 days earlier than there and the growing season is 30 days longer.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | March 17 |
| 50% (median) | April 8 |
| 10% (safe for tender plants) | April 30 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | October 17 |
| 50% (median) | October 31 |
| 90% (late) | November 13 |
Frost here means 32°F (0°C). A median date means half of years have their last frost earlier and half later.
Planting calendar for West Valley City, UT
West Valley City, UT frost dates — last frost Apr 8, first frost Oct 31, zone 7b. whenisthelastfrost.com
Crop
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Start indoors: Jan 14 to Jan 28Transplant outside: Mar 11 to Mar 25
Start indoors: Jan 28 to Feb 11Transplant outside: Apr 22 to May 6
Start indoors: Jan 28 to Feb 11Transplant outside: Apr 22 to May 6
Start indoors: Feb 11 to Feb 25Transplant outside: Apr 15 to Apr 29
Start indoors: Feb 11 to Feb 25Transplant outside: Mar 18 to Apr 1Sow outdoors: Mar 11 to Apr 15Plant for fall: Sep 5 to Oct 3
Start indoors: Feb 11 to Feb 25Transplant outside: Mar 11 to Mar 25Sow outdoors: Mar 11 to Mar 25Plant for fall: Aug 22 to Sep 12
Start indoors: Feb 11 to Feb 25Transplant outside: Mar 25 to Apr 8Plant for fall: Jul 25 to Aug 15
Start indoors: Feb 11 to Feb 25Transplant outside: Mar 18 to Apr 1Plant for fall: Jul 25 to Aug 15
Start indoors: Feb 11 to Feb 25Transplant outside: Mar 25 to Apr 8Plant for fall: Jul 25 to Aug 15
Start indoors: Feb 25 to Mar 11Transplant outside: Apr 29 to May 13Sow outdoors: Apr 29 to May 13
Start indoors: Feb 25 to Mar 11Transplant outside: Apr 15 to Apr 29
Sow outdoors: Feb 25 to Mar 18Plant for fall: Aug 8 to Aug 29
Sow outdoors: Feb 25 to Mar 18Plant for fall: Sep 5 to Sep 26
Sow outdoors: Mar 4 to Apr 15Plant for fall: Sep 19 to Oct 10
Start indoors: Mar 11 to Mar 18Transplant outside: Apr 22 to Apr 29Sow outdoors: Apr 15 to Apr 29Plant for fall: Aug 15 to Aug 29
Start indoors: Mar 11 to Mar 18Sow outdoors: Apr 15 to Apr 29Plant for fall: Aug 22 to Sep 5
Start indoors: Mar 11 to Mar 18Sow outdoors: Apr 15 to Apr 29
Start indoors: Mar 11 to Mar 18Transplant outside: Apr 22 to May 6
Sow outdoors: Mar 18 to Apr 15Plant for fall: Aug 8 to Aug 22
Sow outdoors: Mar 18 to Apr 15Plant for fall: Aug 22 to Sep 5
Sow outdoors: Mar 18 to Apr 8
Sow outdoors: Mar 25 to Apr 22Plant for fall: Aug 22 to Sep 5
Sow outdoors: Mar 25 to Apr 15Plant for fall: Sep 5 to Sep 26
Sow outdoors: Apr 15 to May 6Plant for fall: Aug 15 to Aug 29
Sow outdoors: Apr 15 to Apr 29
Transplant outside: Apr 22 to May 13
Plant for fall: Oct 17 to Nov 21
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in West Valley City, UT
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Jan 14 – Jan 28 | Mar 11 – Mar 25 | — | — |
| Peppers | Jan 28 – Feb 11 | Apr 22 – May 6 | — | — |
| Eggplant | Jan 28 – Feb 11 | Apr 22 – May 6 | — | — |
| Tomatoes | Feb 11 – Feb 25 | Apr 15 – Apr 29 | — | — |
| Lettuce | Feb 11 – Feb 25 | Mar 18 – Apr 1 | Mar 11 – Apr 15 | Sep 5 – Oct 3 |
| Kale | Feb 11 – Feb 25 | Mar 11 – Mar 25 | Mar 11 – Mar 25 | Aug 22 – Sep 12 |
| Broccoli | Feb 11 – Feb 25 | Mar 25 – Apr 8 | — | Jul 25 – Aug 15 |
| Cabbage | Feb 11 – Feb 25 | Mar 18 – Apr 1 | — | Jul 25 – Aug 15 |
| Cauliflower | Feb 11 – Feb 25 | Mar 25 – Apr 8 | — | Jul 25 – Aug 15 |
| Okra | Feb 25 – Mar 11 | Apr 29 – May 13 | Apr 29 – May 13 | — |
| Basil | Feb 25 – Mar 11 | Apr 15 – Apr 29 | — | — |
| Peas | — | — | Feb 25 – Mar 18 | Aug 8 – Aug 29 |
| Spinach | — | — | Feb 25 – Mar 18 | Sep 5 – Sep 26 |
| Radishes | — | — | Mar 4 – Apr 15 | Sep 19 – Oct 10 |
| Cucumbers | Mar 11 – Mar 18 | Apr 22 – Apr 29 | Apr 15 – Apr 29 | Aug 15 – Aug 29 |
| Zucchini & Summer Squash | Mar 11 – Mar 18 | — | Apr 15 – Apr 29 | Aug 22 – Sep 5 |
| Winter Squash & Pumpkins | Mar 11 – Mar 18 | — | Apr 15 – Apr 29 | — |
| Melons & Watermelon | Mar 11 – Mar 18 | Apr 22 – May 6 | — | — |
| Carrots | — | — | Mar 18 – Apr 15 | Aug 8 – Aug 22 |
| Beets | — | — | Mar 18 – Apr 15 | Aug 22 – Sep 5 |
| Potatoes | — | — | Mar 18 – Apr 8 | — |
| Swiss Chard | — | — | Mar 25 – Apr 22 | Aug 22 – Sep 5 |
| Cilantro | — | — | Mar 25 – Apr 15 | Sep 5 – Sep 26 |
| Green Beans | — | — | Apr 15 – May 6 | Aug 15 – Aug 29 |
| Sweet Corn | — | — | Apr 15 – Apr 29 | — |
| Sweet Potatoes | — | Apr 22 – May 13 | — | — |
| Garlic | — | — | — | Oct 17 – Nov 21 |
Dates come from the median frost dates and common extension-service timing. Adjust for your soil temperature, microclimate and the varieties you grow.
About these dates
Based on 1991–2020 NOAA climate normals for the Salt Lake City Intl Ap, UT weather station, 10 km away (elevation 4,226 ft (1,288 m)).
ZIP codes in West Valley City: 84119 84120 84128
Frost dates near West Valley City
- Magna Apr 3 · Nov 4
- West Jordan Apr 18 · Oct 22
- Salt Lake City Apr 25 · Oct 18
- Midvale Apr 29 · Oct 22
- Sandy Apr 29 · Oct 22
- South Jordan Apr 18 · Oct 22
- Bingham Canyon Apr 18 · Oct 22
- North Salt Lake Apr 24 · Oct 19
- Herriman Apr 18 · Oct 22
- Riverton Apr 18 · Oct 22
Frequently asked questions
When is the last frost in West Valley City, UT?
The median last spring frost in West Valley City, UT is April 8. There is still about a 10% chance of frost after April 30, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in West Valley City, UT?
The median first fall frost is October 31, with about a 10% chance of frost before October 17.
How long is the growing season in West Valley City, UT?
About 206 days between the median last spring frost and first fall frost.
What planting zone is West Valley City, UT?
West Valley City, UT is in USDA hardiness zone 7b.