Midvale, UT frost dates
Last spring frostApr 29median date
First fall frostOct 22median date
Growing season176 daysfrost-free
Hardiness zone7bZone 7b
How Midvale compares
- In 8 years out of 10, the last spring frost in Midvale falls between April 10 and May 30, a 50-day window. The first fall frost falls between October 6 and November 7.
- The median last frost is 11 days earlier than the Utah median of May 10.
- Its 176-day growing season is longer than 74% of the 250 Utah places with a regular frost season (state median 148 days).
- The last frost is 24 days later than the zone 7b median of Apr 5. Hardiness zones measure winter cold, not season length, so use these dates rather than a zone 7b chart.
- The weather station records an average of 112 nights a year at or below 32°F.
- Midvale shares its weather station with Sandy, UT, 3 km away, so the two have the same frost dates.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | April 10 |
| 50% (median) | April 29 |
| 10% (safe for tender plants) | May 30 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | October 6 |
| 50% (median) | October 22 |
| 90% (late) | November 7 |
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 Midvale, UT
Midvale, UT frost dates — last frost Apr 29, first frost Oct 22, zone 7b. whenisthelastfrost.com
Crop
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Start indoors: Feb 4 to Feb 18Transplant outside: Apr 1 to Apr 15
Start indoors: Feb 18 to Mar 4Transplant outside: May 13 to May 27
Start indoors: Feb 18 to Mar 4Transplant outside: May 13 to May 27
Start indoors: Mar 4 to Mar 18Transplant outside: May 6 to May 20
Start indoors: Mar 4 to Mar 18Transplant outside: Apr 8 to Apr 22Sow outdoors: Apr 1 to May 6Plant for fall: Aug 27 to Sep 24
Start indoors: Mar 4 to Mar 18Transplant outside: Apr 1 to Apr 15Sow outdoors: Apr 1 to Apr 15Plant for fall: Aug 13 to Sep 3
Start indoors: Mar 4 to Mar 18Transplant outside: Apr 15 to Apr 29Plant for fall: Jul 16 to Aug 6
Start indoors: Mar 4 to Mar 18Transplant outside: Apr 8 to Apr 22Plant for fall: Jul 16 to Aug 6
Start indoors: Mar 4 to Mar 18Transplant outside: Apr 15 to Apr 29Plant for fall: Jul 16 to Aug 6
Start indoors: Mar 18 to Apr 1Transplant outside: May 20 to Jun 3Sow outdoors: May 20 to Jun 3
Start indoors: Mar 18 to Apr 1Transplant outside: May 6 to May 20
Sow outdoors: Mar 18 to Apr 8Plant for fall: Jul 30 to Aug 20
Sow outdoors: Mar 18 to Apr 8Plant for fall: Aug 27 to Sep 17
Sow outdoors: Mar 25 to May 6Plant for fall: Sep 10 to Oct 1
Start indoors: Apr 1 to Apr 8Transplant outside: May 13 to May 20Sow outdoors: May 6 to May 20Plant for fall: Aug 6 to Aug 20
Start indoors: Apr 1 to Apr 8Sow outdoors: May 6 to May 20Plant for fall: Aug 13 to Aug 27
Start indoors: Apr 1 to Apr 8Sow outdoors: May 6 to May 20
Start indoors: Apr 1 to Apr 8Transplant outside: May 13 to May 27
Sow outdoors: Apr 8 to May 6Plant for fall: Jul 30 to Aug 13
Sow outdoors: Apr 8 to May 6Plant for fall: Aug 13 to Aug 27
Sow outdoors: Apr 8 to Apr 29
Sow outdoors: Apr 15 to May 13Plant for fall: Aug 13 to Aug 27
Sow outdoors: Apr 15 to May 6Plant for fall: Aug 27 to Sep 17
Sow outdoors: May 6 to May 27Plant for fall: Aug 6 to Aug 20
Sow outdoors: May 6 to May 20
Transplant outside: May 13 to Jun 3
Plant for fall: Oct 8 to Nov 12
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Midvale, UT
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Feb 4 – Feb 18 | Apr 1 – Apr 15 | — | — |
| Peppers | Feb 18 – Mar 4 | May 13 – May 27 | — | — |
| Eggplant | Feb 18 – Mar 4 | May 13 – May 27 | — | — |
| Tomatoes | Mar 4 – Mar 18 | May 6 – May 20 | — | — |
| Lettuce | Mar 4 – Mar 18 | Apr 8 – Apr 22 | Apr 1 – May 6 | Aug 27 – Sep 24 |
| Kale | Mar 4 – Mar 18 | Apr 1 – Apr 15 | Apr 1 – Apr 15 | Aug 13 – Sep 3 |
| Broccoli | Mar 4 – Mar 18 | Apr 15 – Apr 29 | — | Jul 16 – Aug 6 |
| Cabbage | Mar 4 – Mar 18 | Apr 8 – Apr 22 | — | Jul 16 – Aug 6 |
| Cauliflower | Mar 4 – Mar 18 | Apr 15 – Apr 29 | — | Jul 16 – Aug 6 |
| Okra | Mar 18 – Apr 1 | May 20 – Jun 3 | May 20 – Jun 3 | — |
| Basil | Mar 18 – Apr 1 | May 6 – May 20 | — | — |
| Peas | — | — | Mar 18 – Apr 8 | Jul 30 – Aug 20 |
| Spinach | — | — | Mar 18 – Apr 8 | Aug 27 – Sep 17 |
| Radishes | — | — | Mar 25 – May 6 | Sep 10 – Oct 1 |
| Cucumbers | Apr 1 – Apr 8 | May 13 – May 20 | May 6 – May 20 | Aug 6 – Aug 20 |
| Zucchini & Summer Squash | Apr 1 – Apr 8 | — | May 6 – May 20 | Aug 13 – Aug 27 |
| Winter Squash & Pumpkins | Apr 1 – Apr 8 | — | May 6 – May 20 | — |
| Melons & Watermelon | Apr 1 – Apr 8 | May 13 – May 27 | — | — |
| Carrots | — | — | Apr 8 – May 6 | Jul 30 – Aug 13 |
| Beets | — | — | Apr 8 – May 6 | Aug 13 – Aug 27 |
| Potatoes | — | — | Apr 8 – Apr 29 | — |
| Swiss Chard | — | — | Apr 15 – May 13 | Aug 13 – Aug 27 |
| Cilantro | — | — | Apr 15 – May 6 | Aug 27 – Sep 17 |
| Green Beans | — | — | May 6 – May 27 | Aug 6 – Aug 20 |
| Sweet Corn | — | — | May 6 – May 20 | — |
| Sweet Potatoes | — | May 13 – Jun 3 | — | — |
| Garlic | — | — | — | Oct 8 – Nov 12 |
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 Cottonwood Weir, UT weather station, 9 km away (elevation 4,987 ft (1,520 m)).
Frost dates near Midvale
- Sandy Apr 29 · Oct 22
- South Jordan Apr 18 · Oct 22
- West Jordan Apr 18 · Oct 22
- Salt Lake City Apr 25 · Oct 18
- Draper Apr 18 · Oct 22
- West Valley City Apr 8 · Oct 31
- Riverton Apr 18 · Oct 22
- Herriman Apr 18 · Oct 22
- Bingham Canyon Apr 18 · Oct 22
- Magna Apr 3 · Nov 4
Frequently asked questions
When is the last frost in Midvale, UT?
The median last spring frost in Midvale, UT is April 29. There is still about a 10% chance of frost after May 30, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Midvale, UT?
The median first fall frost is October 22, with about a 10% chance of frost before October 6.
How long is the growing season in Midvale, UT?
About 176 days between the median last spring frost and first fall frost.
What planting zone is Midvale, UT?
Midvale, UT is in USDA hardiness zone 7b.