Midway, UT frost dates
Last spring frostMay 31median date
First fall frostSep 11median date
Growing season103 daysfrost-free
Hardiness zone6aZone 6a
How Midway compares
- In 8 years out of 10, the last spring frost in Midway falls between May 13 and June 23, a 41-day window. The first fall frost falls between August 14 and September 28.
- The median last frost is 21 days later than the Utah median of May 10.
- Its 103-day growing season is longer than 5% of the 250 Utah places with a regular frost season (state median 148 days).
- The last frost is 32 days later than the zone 6a median of Apr 29. Hardiness zones measure winter cold, not season length, so use these dates rather than a zone 6a chart.
- The weather station records an average of 206 nights a year at or below 32°F.
- Compared with Orem, UT, 31 km away, the last frost here is 43 days later than there and the growing season is 83 days shorter.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | May 13 |
| 50% (median) | May 31 |
| 10% (safe for tender plants) | June 23 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | August 14 |
| 50% (median) | September 11 |
| 90% (late) | September 28 |
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 Midway, UT
Midway, UT frost dates — last frost May 31, first frost Sep 11, zone 6a. whenisthelastfrost.com
Crop
JFMAMJJASOND
Start indoors: Mar 8 to Mar 22Transplant outside: May 3 to May 17
Start indoors: Mar 22 to Apr 5Transplant outside: Jun 14 to Jun 28
Start indoors: Mar 22 to Apr 5Transplant outside: Jun 14 to Jun 28
Start indoors: Apr 5 to Apr 19Transplant outside: Jun 7 to Jun 21
Start indoors: Apr 5 to Apr 19Transplant outside: May 10 to May 24Sow outdoors: May 3 to Jun 7Plant for fall: Jul 17 to Aug 14
Start indoors: Apr 5 to Apr 19Transplant outside: May 3 to May 17Sow outdoors: May 3 to May 17Plant for fall: Jul 3 to Jul 24
Start indoors: Apr 5 to Apr 19Transplant outside: May 17 to May 31
Start indoors: Apr 5 to Apr 19Transplant outside: May 10 to May 24
Start indoors: Apr 5 to Apr 19Transplant outside: May 17 to May 31
Start indoors: Apr 19 to May 3Transplant outside: Jun 21 to Jul 5Sow outdoors: Jun 21 to Jul 5
Start indoors: Apr 19 to May 3Transplant outside: Jun 7 to Jun 21
Sow outdoors: Apr 19 to May 10Plant for fall: Jun 19 to Jul 10
Sow outdoors: Apr 19 to May 10Plant for fall: Jul 17 to Aug 7
Sow outdoors: Apr 26 to Jun 7Plant for fall: Jul 31 to Aug 21
Start indoors: May 3 to May 10Transplant outside: Jun 14 to Jun 21Sow outdoors: Jun 7 to Jun 21
Start indoors: May 3 to May 10Sow outdoors: Jun 7 to Jun 21
Start indoors: May 3 to May 10Sow outdoors: Jun 7 to Jun 21
Start indoors: May 3 to May 10Transplant outside: Jun 14 to Jun 28
Sow outdoors: May 10 to Jun 7
Sow outdoors: May 10 to Jun 7Plant for fall: Jul 3 to Jul 17
Sow outdoors: May 10 to May 31
Sow outdoors: May 17 to Jun 14Plant for fall: Jul 3 to Jul 17
Sow outdoors: May 17 to Jun 7Plant for fall: Jul 17 to Aug 7
Sow outdoors: Jun 7 to Jun 28
Sow outdoors: Jun 7 to Jun 21
Transplant outside: Jun 14 to Jul 5
Plant for fall: Aug 28 to Oct 2
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Midway, UT
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Mar 8 – Mar 22 | May 3 – May 17 | — | — |
| Peppers | Mar 22 – Apr 5 | Jun 14 – Jun 28 | — | — |
| Eggplant | Mar 22 – Apr 5 | Jun 14 – Jun 28 | — | — |
| Tomatoes | Apr 5 – Apr 19 | Jun 7 – Jun 21 | — | — |
| Lettuce | Apr 5 – Apr 19 | May 10 – May 24 | May 3 – Jun 7 | Jul 17 – Aug 14 |
| Kale | Apr 5 – Apr 19 | May 3 – May 17 | May 3 – May 17 | Jul 3 – Jul 24 |
| Broccoli | Apr 5 – Apr 19 | May 17 – May 31 | — | — |
| Cabbage | Apr 5 – Apr 19 | May 10 – May 24 | — | — |
| Cauliflower | Apr 5 – Apr 19 | May 17 – May 31 | — | — |
| Okra | Apr 19 – May 3 | Jun 21 – Jul 5 | Jun 21 – Jul 5 | — |
| Basil | Apr 19 – May 3 | Jun 7 – Jun 21 | — | — |
| Peas | — | — | Apr 19 – May 10 | Jun 19 – Jul 10 |
| Spinach | — | — | Apr 19 – May 10 | Jul 17 – Aug 7 |
| Radishes | — | — | Apr 26 – Jun 7 | Jul 31 – Aug 21 |
| Cucumbers | May 3 – May 10 | Jun 14 – Jun 21 | Jun 7 – Jun 21 | — |
| Zucchini & Summer Squash | May 3 – May 10 | — | Jun 7 – Jun 21 | — |
| Winter Squash & Pumpkins Warning: Your frost-free season is about 103 days, which is tight for winter squash & pumpkins (100+ days). Choose early varieties and use transplants or row covers. | May 3 – May 10 | — | Jun 7 – Jun 21 | — |
| Melons & Watermelon | May 3 – May 10 | Jun 14 – Jun 28 | — | — |
| Carrots | — | — | May 10 – Jun 7 | — |
| Beets | — | — | May 10 – Jun 7 | Jul 3 – Jul 17 |
| Potatoes | — | — | May 10 – May 31 | — |
| Swiss Chard | — | — | May 17 – Jun 14 | Jul 3 – Jul 17 |
| Cilantro | — | — | May 17 – Jun 7 | Jul 17 – Aug 7 |
| Green Beans | — | — | Jun 7 – Jun 28 | — |
| Sweet Corn | — | — | Jun 7 – Jun 21 | — |
| Sweet Potatoes Warning: Your frost-free season is about 103 days, which is tight for sweet potatoes (100+ days). Choose early varieties and use transplants or row covers. | — | Jun 14 – Jul 5 | — | — |
| Garlic | — | — | — | Aug 28 – Oct 2 |
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 Snake Creek Powerhouse, UT weather station, 5 km away (elevation 6,010 ft (1,832 m)).
Frost dates near Midway
- Heber City Jun 4 · Sep 20
- Wallsburg May 28 · Sep 23
- Park City May 29 · Sep 25
- Kamas Jun 5 · Sep 17
- Alpine May 3 · Oct 12
- Pleasant Grove Apr 17 · Oct 25
- Peoa Jun 11 · Sep 12
- Lindon Apr 17 · Oct 25
- American Fork Apr 17 · Oct 25
- Orem Apr 18 · Oct 21
Frequently asked questions
When is the last frost in Midway, UT?
The median last spring frost in Midway, UT is May 31. There is still about a 10% chance of frost after June 23, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Midway, UT?
The median first fall frost is September 11, with about a 10% chance of frost before August 14.
How long is the growing season in Midway, UT?
About 103 days between the median last spring frost and first fall frost.
What planting zone is Midway, UT?
Midway, UT is in USDA hardiness zone 6a.