Frost dates for 84060 — Park City, UT
Last spring frostMay 29median date
First fall frostSep 25median date
Growing season119 daysfrost-free
Hardiness zone6aZone 6a
How Park City compares
- In 8 years out of 10, the last spring frost in Park City falls between May 12 and June 14, a 33-day window. The first fall frost falls between September 12 and October 9.
- The median last frost is 19 days later than the Utah median of May 10.
- Its 119-day growing season is longer than 17% of the 250 Utah places with a regular frost season (state median 148 days).
- The last frost is 30 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 202 nights a year at or below 32°F.
- Compared with Sandy, UT, 30 km away, the last frost here is 30 days later than there and the growing season is 57 days shorter.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | May 12 |
| 50% (median) | May 29 |
| 10% (safe for tender plants) | June 14 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | September 12 |
| 50% (median) | September 25 |
| 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 Park City, UT
Frost dates for 84060 — Park City, UT — last frost May 29, first frost Sep 25, zone 6a. whenisthelastfrost.com
Crop
JFMAMJJASOND
Start indoors: Mar 6 to Mar 20Transplant outside: May 1 to May 15
Start indoors: Mar 20 to Apr 3Transplant outside: Jun 12 to Jun 26
Start indoors: Mar 20 to Apr 3Transplant outside: Jun 12 to Jun 26
Start indoors: Apr 3 to Apr 17Transplant outside: Jun 5 to Jun 19
Start indoors: Apr 3 to Apr 17Transplant outside: May 8 to May 22Sow outdoors: May 1 to Jun 5Plant for fall: Jul 31 to Aug 28
Start indoors: Apr 3 to Apr 17Transplant outside: May 1 to May 15Sow outdoors: May 1 to May 15Plant for fall: Jul 17 to Aug 7
Start indoors: Apr 3 to Apr 17Transplant outside: May 15 to May 29Plant for fall: Jun 19 to Jul 10
Start indoors: Apr 3 to Apr 17Transplant outside: May 8 to May 22Plant for fall: Jun 19 to Jul 10
Start indoors: Apr 3 to Apr 17Transplant outside: May 15 to May 29Plant for fall: Jun 19 to Jul 10
Start indoors: Apr 17 to May 1Transplant outside: Jun 19 to Jul 3Sow outdoors: Jun 19 to Jul 3
Start indoors: Apr 17 to May 1Transplant outside: Jun 5 to Jun 19
Sow outdoors: Apr 17 to May 8Plant for fall: Jul 3 to Jul 24
Sow outdoors: Apr 17 to May 8Plant for fall: Jul 31 to Aug 21
Sow outdoors: Apr 24 to Jun 5Plant for fall: Aug 14 to Sep 4
Start indoors: May 1 to May 8Transplant outside: Jun 12 to Jun 19Sow outdoors: Jun 5 to Jun 19Plant for fall: Jul 10 to Jul 24
Start indoors: May 1 to May 8Sow outdoors: Jun 5 to Jun 19Plant for fall: Jul 17 to Jul 31
Start indoors: May 1 to May 8Sow outdoors: Jun 5 to Jun 19
Start indoors: May 1 to May 8Transplant outside: Jun 12 to Jun 26
Sow outdoors: May 8 to Jun 5Plant for fall: Jul 3 to Jul 17
Sow outdoors: May 8 to Jun 5Plant for fall: Jul 17 to Jul 31
Sow outdoors: May 8 to May 29
Sow outdoors: May 15 to Jun 12Plant for fall: Jul 17 to Jul 31
Sow outdoors: May 15 to Jun 5Plant for fall: Jul 31 to Aug 21
Sow outdoors: Jun 5 to Jun 26
Sow outdoors: Jun 5 to Jun 19
Transplant outside: Jun 12 to Jul 3
Plant for fall: Sep 11 to Oct 16
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Park City, UT
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Mar 6 – Mar 20 | May 1 – May 15 | — | — |
| Peppers | Mar 20 – Apr 3 | Jun 12 – Jun 26 | — | — |
| Eggplant | Mar 20 – Apr 3 | Jun 12 – Jun 26 | — | — |
| Tomatoes | Apr 3 – Apr 17 | Jun 5 – Jun 19 | — | — |
| Lettuce | Apr 3 – Apr 17 | May 8 – May 22 | May 1 – Jun 5 | Jul 31 – Aug 28 |
| Kale | Apr 3 – Apr 17 | May 1 – May 15 | May 1 – May 15 | Jul 17 – Aug 7 |
| Broccoli | Apr 3 – Apr 17 | May 15 – May 29 | — | Jun 19 – Jul 10 |
| Cabbage | Apr 3 – Apr 17 | May 8 – May 22 | — | Jun 19 – Jul 10 |
| Cauliflower | Apr 3 – Apr 17 | May 15 – May 29 | — | Jun 19 – Jul 10 |
| Okra | Apr 17 – May 1 | Jun 19 – Jul 3 | Jun 19 – Jul 3 | — |
| Basil | Apr 17 – May 1 | Jun 5 – Jun 19 | — | — |
| Peas | — | — | Apr 17 – May 8 | Jul 3 – Jul 24 |
| Spinach | — | — | Apr 17 – May 8 | Jul 31 – Aug 21 |
| Radishes | — | — | Apr 24 – Jun 5 | Aug 14 – Sep 4 |
| Cucumbers | May 1 – May 8 | Jun 12 – Jun 19 | Jun 5 – Jun 19 | Jul 10 – Jul 24 |
| Zucchini & Summer Squash | May 1 – May 8 | — | Jun 5 – Jun 19 | Jul 17 – Jul 31 |
| Winter Squash & Pumpkins | May 1 – May 8 | — | Jun 5 – Jun 19 | — |
| Melons & Watermelon | May 1 – May 8 | Jun 12 – Jun 26 | — | — |
| Carrots | — | — | May 8 – Jun 5 | Jul 3 – Jul 17 |
| Beets | — | — | May 8 – Jun 5 | Jul 17 – Jul 31 |
| Potatoes | — | — | May 8 – May 29 | — |
| Swiss Chard | — | — | May 15 – Jun 12 | Jul 17 – Jul 31 |
| Cilantro | — | — | May 15 – Jun 5 | Jul 31 – Aug 21 |
| Green Beans | — | — | Jun 5 – Jun 26 | — |
| Sweet Corn | — | — | Jun 5 – Jun 19 | — |
| Sweet Potatoes | — | Jun 12 – Jul 3 | — | — |
| Garlic | — | — | — | Sep 11 – Oct 16 |
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 Park City, UT weather station, about 1 km away (elevation 6,900 ft (2,103 m)).
ZIP codes in Park City: 84060 84068 84098
Frost dates near Park City
- Peoa Jun 11 · Sep 12
- Midway May 31 · Sep 11
- Heber City Jun 4 · Sep 20
- Kamas Jun 5 · Sep 17
- Oakley Jun 5 · Sep 17
- Coalville Jun 11 · Sep 12
- Sandy Apr 29 · Oct 22
- Alpine May 3 · Oct 12
Frequently asked questions
When is the last frost in Park City, UT?
The median last spring frost in Park City, UT is May 29. There is still about a 10% chance of frost after June 14, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Park City, UT?
The median first fall frost is September 25, with about a 10% chance of frost before September 12.
How long is the growing season in Park City, UT?
About 119 days between the median last spring frost and first fall frost.
What planting zone is Park City, UT?
Park City, UT is in USDA hardiness zone 6a.