Oakley, UT frost dates
Last spring frostJun 5median date
First fall frostSep 17median date
Growing season104 daysfrost-free
Hardiness zone5bZone 5b
How Oakley compares
- In 8 years out of 10, the last spring frost in Oakley falls between May 20 and June 23, a 34-day window. The first fall frost falls between September 1 and October 1.
- The median last frost is 26 days later than the Utah median of May 10.
- Its 104-day growing season is longer than 6% of the 250 Utah places with a regular frost season (state median 148 days).
- The last frost is 35 days later than the zone 5b median of May 1. Hardiness zones measure winter cold, not season length, so use these dates rather than a zone 5b chart.
- The weather station records an average of 196 nights a year at or below 32°F.
- Compared with Sandy, UT, 53 km away, the last frost here is 37 days later than there and the growing season is 72 days shorter.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | May 20 |
| 50% (median) | June 5 |
| 10% (safe for tender plants) | June 23 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | September 1 |
| 50% (median) | September 17 |
| 90% (late) | October 1 |
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 Oakley, UT
Oakley, UT frost dates — last frost Jun 5, first frost Sep 17, zone 5b. whenisthelastfrost.com
Crop
JFMAMJJASOND
Start indoors: Mar 13 to Mar 27Transplant outside: May 8 to May 22
Start indoors: Mar 27 to Apr 10Transplant outside: Jun 19 to Jul 3
Start indoors: Mar 27 to Apr 10Transplant outside: Jun 19 to Jul 3
Start indoors: Apr 10 to Apr 24Transplant outside: Jun 12 to Jun 26
Start indoors: Apr 10 to Apr 24Transplant outside: May 15 to May 29Sow outdoors: May 8 to Jun 12Plant for fall: Jul 23 to Aug 20
Start indoors: Apr 10 to Apr 24Transplant outside: May 8 to May 22Sow outdoors: May 8 to May 22Plant for fall: Jul 9 to Jul 30
Start indoors: Apr 10 to Apr 24Transplant outside: May 22 to Jun 5
Start indoors: Apr 10 to Apr 24Transplant outside: May 15 to May 29
Start indoors: Apr 10 to Apr 24Transplant outside: May 22 to Jun 5
Start indoors: Apr 24 to May 8Transplant outside: Jun 26 to Jul 10Sow outdoors: Jun 26 to Jul 10
Start indoors: Apr 24 to May 8Transplant outside: Jun 12 to Jun 26
Sow outdoors: Apr 24 to May 15Plant for fall: Jun 25 to Jul 16
Sow outdoors: Apr 24 to May 15Plant for fall: Jul 23 to Aug 13
Sow outdoors: May 1 to Jun 12Plant for fall: Aug 6 to Aug 27
Start indoors: May 8 to May 15Transplant outside: Jun 19 to Jun 26Sow outdoors: Jun 12 to Jun 26
Start indoors: May 8 to May 15Sow outdoors: Jun 12 to Jun 26
Start indoors: May 8 to May 15Sow outdoors: Jun 12 to Jun 26
Start indoors: May 8 to May 15Transplant outside: Jun 19 to Jul 3
Sow outdoors: May 15 to Jun 12
Sow outdoors: May 15 to Jun 12Plant for fall: Jul 9 to Jul 23
Sow outdoors: May 15 to Jun 5
Sow outdoors: May 22 to Jun 19Plant for fall: Jul 9 to Jul 23
Sow outdoors: May 22 to Jun 12Plant for fall: Jul 23 to Aug 13
Sow outdoors: Jun 12 to Jul 3
Sow outdoors: Jun 12 to Jun 26
Transplant outside: Jun 19 to Jul 10
Plant for fall: Sep 3 to Oct 8
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Oakley, UT
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Mar 13 – Mar 27 | May 8 – May 22 | — | — |
| Peppers | Mar 27 – Apr 10 | Jun 19 – Jul 3 | — | — |
| Eggplant | Mar 27 – Apr 10 | Jun 19 – Jul 3 | — | — |
| Tomatoes | Apr 10 – Apr 24 | Jun 12 – Jun 26 | — | — |
| Lettuce | Apr 10 – Apr 24 | May 15 – May 29 | May 8 – Jun 12 | Jul 23 – Aug 20 |
| Kale | Apr 10 – Apr 24 | May 8 – May 22 | May 8 – May 22 | Jul 9 – Jul 30 |
| Broccoli | Apr 10 – Apr 24 | May 22 – Jun 5 | — | — |
| Cabbage | Apr 10 – Apr 24 | May 15 – May 29 | — | — |
| Cauliflower | Apr 10 – Apr 24 | May 22 – Jun 5 | — | — |
| Okra | Apr 24 – May 8 | Jun 26 – Jul 10 | Jun 26 – Jul 10 | — |
| Basil | Apr 24 – May 8 | Jun 12 – Jun 26 | — | — |
| Peas | — | — | Apr 24 – May 15 | Jun 25 – Jul 16 |
| Spinach | — | — | Apr 24 – May 15 | Jul 23 – Aug 13 |
| Radishes | — | — | May 1 – Jun 12 | Aug 6 – Aug 27 |
| Cucumbers | May 8 – May 15 | Jun 19 – Jun 26 | Jun 12 – Jun 26 | — |
| Zucchini & Summer Squash | May 8 – May 15 | — | Jun 12 – Jun 26 | — |
| Winter Squash & Pumpkins Warning: Your frost-free season is about 104 days, which is tight for winter squash & pumpkins (100+ days). Choose early varieties and use transplants or row covers. | May 8 – May 15 | — | Jun 12 – Jun 26 | — |
| Melons & Watermelon | May 8 – May 15 | Jun 19 – Jul 3 | — | — |
| Carrots | — | — | May 15 – Jun 12 | — |
| Beets | — | — | May 15 – Jun 12 | Jul 9 – Jul 23 |
| Potatoes | — | — | May 15 – Jun 5 | — |
| Swiss Chard | — | — | May 22 – Jun 19 | Jul 9 – Jul 23 |
| Cilantro | — | — | May 22 – Jun 12 | Jul 23 – Aug 13 |
| Green Beans | — | — | Jun 12 – Jul 3 | — |
| Sweet Corn | — | — | Jun 12 – Jun 26 | — |
| Sweet Potatoes Warning: Your frost-free season is about 104 days, which is tight for sweet potatoes (100+ days). Choose early varieties and use transplants or row covers. | — | Jun 19 – Jul 10 | — | — |
| Garlic | — | — | — | Sep 3 – Oct 8 |
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 Kamas, UT weather station, 9 km away (elevation 6,480 ft (1,975 m)).
Frost dates near Oakley
- Peoa Jun 11 · Sep 12
- Kamas Jun 5 · Sep 17
- Coalville Jun 11 · Sep 12
- Park City May 29 · Sep 25
- Heber City Jun 4 · Sep 20
- Midway May 31 · Sep 11
- Echo May 30 · Sep 18
- Henefer May 30 · Sep 18
- Wallsburg May 28 · Sep 23
- Croydon May 30 · Sep 18
Frequently asked questions
When is the last frost in Oakley, UT?
The median last spring frost in Oakley, UT is June 5. 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 Oakley, UT?
The median first fall frost is September 17, with about a 10% chance of frost before September 1.
How long is the growing season in Oakley, UT?
About 104 days between the median last spring frost and first fall frost.
What planting zone is Oakley, UT?
Oakley, UT is in USDA hardiness zone 5b.