Orangeville, UT frost dates
Last spring frostMay 18median date
First fall frostSep 27median date
Growing season132 daysfrost-free
Hardiness zone6aZone 6a
How Orangeville compares
- In 8 years out of 10, the last spring frost in Orangeville falls between May 4 and June 8, a 35-day window. The first fall frost falls between September 14 and October 9.
- The median last frost is 8 days later than the Utah median of May 10.
- Its 132-day growing season is longer than 36% of the 250 Utah places with a regular frost season (state median 148 days).
- The last frost is 19 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 186 nights a year at or below 32°F.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | May 4 |
| 50% (median) | May 18 |
| 10% (safe for tender plants) | June 8 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | September 14 |
| 50% (median) | September 27 |
| 90% (late) | October 9 |
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 Orangeville, UT
Orangeville, UT frost dates — last frost May 18, first frost Sep 27, zone 6a. whenisthelastfrost.com
Crop
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Start indoors: Feb 23 to Mar 9Transplant outside: Apr 20 to May 4
Start indoors: Mar 9 to Mar 23Transplant outside: Jun 1 to Jun 15
Start indoors: Mar 9 to Mar 23Transplant outside: Jun 1 to Jun 15
Start indoors: Mar 23 to Apr 6Transplant outside: May 25 to Jun 8
Start indoors: Mar 23 to Apr 6Transplant outside: Apr 27 to May 11Sow outdoors: Apr 20 to May 25Plant for fall: Aug 2 to Aug 30
Start indoors: Mar 23 to Apr 6Transplant outside: Apr 20 to May 4Sow outdoors: Apr 20 to May 4Plant for fall: Jul 19 to Aug 9
Start indoors: Mar 23 to Apr 6Transplant outside: May 4 to May 18Plant for fall: Jun 21 to Jul 12
Start indoors: Mar 23 to Apr 6Transplant outside: Apr 27 to May 11Plant for fall: Jun 21 to Jul 12
Start indoors: Mar 23 to Apr 6Transplant outside: May 4 to May 18Plant for fall: Jun 21 to Jul 12
Start indoors: Apr 6 to Apr 20Transplant outside: Jun 8 to Jun 22Sow outdoors: Jun 8 to Jun 22
Start indoors: Apr 6 to Apr 20Transplant outside: May 25 to Jun 8
Sow outdoors: Apr 6 to Apr 27Plant for fall: Jul 5 to Jul 26
Sow outdoors: Apr 6 to Apr 27Plant for fall: Aug 2 to Aug 23
Sow outdoors: Apr 13 to May 25Plant for fall: Aug 16 to Sep 6
Start indoors: Apr 20 to Apr 27Transplant outside: Jun 1 to Jun 8Sow outdoors: May 25 to Jun 8Plant for fall: Jul 12 to Jul 26
Start indoors: Apr 20 to Apr 27Sow outdoors: May 25 to Jun 8Plant for fall: Jul 19 to Aug 2
Start indoors: Apr 20 to Apr 27Sow outdoors: May 25 to Jun 8
Start indoors: Apr 20 to Apr 27Transplant outside: Jun 1 to Jun 15
Sow outdoors: Apr 27 to May 25Plant for fall: Jul 5 to Jul 19
Sow outdoors: Apr 27 to May 25Plant for fall: Jul 19 to Aug 2
Sow outdoors: Apr 27 to May 18
Sow outdoors: May 4 to Jun 1Plant for fall: Jul 19 to Aug 2
Sow outdoors: May 4 to May 25Plant for fall: Aug 2 to Aug 23
Sow outdoors: May 25 to Jun 15Plant for fall: Jul 12 to Jul 26
Sow outdoors: May 25 to Jun 8
Transplant outside: Jun 1 to Jun 22
Plant for fall: Sep 13 to Oct 18
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Orangeville, UT
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Feb 23 – Mar 9 | Apr 20 – May 4 | — | — |
| Peppers | Mar 9 – Mar 23 | Jun 1 – Jun 15 | — | — |
| Eggplant | Mar 9 – Mar 23 | Jun 1 – Jun 15 | — | — |
| Tomatoes | Mar 23 – Apr 6 | May 25 – Jun 8 | — | — |
| Lettuce | Mar 23 – Apr 6 | Apr 27 – May 11 | Apr 20 – May 25 | Aug 2 – Aug 30 |
| Kale | Mar 23 – Apr 6 | Apr 20 – May 4 | Apr 20 – May 4 | Jul 19 – Aug 9 |
| Broccoli | Mar 23 – Apr 6 | May 4 – May 18 | — | Jun 21 – Jul 12 |
| Cabbage | Mar 23 – Apr 6 | Apr 27 – May 11 | — | Jun 21 – Jul 12 |
| Cauliflower | Mar 23 – Apr 6 | May 4 – May 18 | — | Jun 21 – Jul 12 |
| Okra | Apr 6 – Apr 20 | Jun 8 – Jun 22 | Jun 8 – Jun 22 | — |
| Basil | Apr 6 – Apr 20 | May 25 – Jun 8 | — | — |
| Peas | — | — | Apr 6 – Apr 27 | Jul 5 – Jul 26 |
| Spinach | — | — | Apr 6 – Apr 27 | Aug 2 – Aug 23 |
| Radishes | — | — | Apr 13 – May 25 | Aug 16 – Sep 6 |
| Cucumbers | Apr 20 – Apr 27 | Jun 1 – Jun 8 | May 25 – Jun 8 | Jul 12 – Jul 26 |
| Zucchini & Summer Squash | Apr 20 – Apr 27 | — | May 25 – Jun 8 | Jul 19 – Aug 2 |
| Winter Squash & Pumpkins | Apr 20 – Apr 27 | — | May 25 – Jun 8 | — |
| Melons & Watermelon | Apr 20 – Apr 27 | Jun 1 – Jun 15 | — | — |
| Carrots | — | — | Apr 27 – May 25 | Jul 5 – Jul 19 |
| Beets | — | — | Apr 27 – May 25 | Jul 19 – Aug 2 |
| Potatoes | — | — | Apr 27 – May 18 | — |
| Swiss Chard | — | — | May 4 – Jun 1 | Jul 19 – Aug 2 |
| Cilantro | — | — | May 4 – May 25 | Aug 2 – Aug 23 |
| Green Beans | — | — | May 25 – Jun 15 | Jul 12 – Jul 26 |
| Sweet Corn | — | — | May 25 – Jun 8 | — |
| Sweet Potatoes | — | Jun 1 – Jun 22 | — | — |
| Garlic | — | — | — | Sep 13 – Oct 18 |
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 Castle Dale, UT weather station, 4 km away (elevation 5,630 ft (1,716 m)).
Frost dates near Orangeville
- Castle Dale May 18 · Sep 27
- Clawson May 6 · Oct 10
- Huntington May 18 · Sep 27
- Ferron May 6 · Oct 10
- Cleveland May 18 · Sep 27
- Elmo May 27 · Sep 26
- Emery May 29 · Sep 26
- Wellington May 27 · Sep 26
- Spring City May 26 · Sep 25
- Price May 3 · Oct 12
Frequently asked questions
When is the last frost in Orangeville, UT?
The median last spring frost in Orangeville, UT is May 18. There is still about a 10% chance of frost after June 8, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Orangeville, UT?
The median first fall frost is September 27, with about a 10% chance of frost before September 14.
How long is the growing season in Orangeville, UT?
About 132 days between the median last spring frost and first fall frost.
What planting zone is Orangeville, UT?
Orangeville, UT is in USDA hardiness zone 6a.