Echo, UT frost dates
Last spring frostMay 30median date
First fall frostSep 18median date
Growing season111 daysfrost-free
Hardiness zone6aZone 6a
How Echo compares
- In 8 years out of 10, the last spring frost in Echo falls between May 11 and June 16, a 36-day window. The first fall frost falls between September 4 and October 1.
- The median last frost is 20 days later than the Utah median of May 10.
- Its 111-day growing season is longer than 10% of the 250 Utah places with a regular frost season (state median 148 days).
- The last frost is 31 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 191 nights a year at or below 32°F.
- Compared with Layton, UT, 43 km away, the last frost here is 31 days later than there and the growing season is 63 days shorter.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | May 11 |
| 50% (median) | May 30 |
| 10% (safe for tender plants) | June 16 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | September 4 |
| 50% (median) | September 18 |
| 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 Echo, UT
Echo, UT frost dates — last frost May 30, first frost Sep 18, zone 6a. whenisthelastfrost.com
Crop
JFMAMJJASOND
Start indoors: Mar 7 to Mar 21Transplant outside: May 2 to May 16
Start indoors: Mar 21 to Apr 4Transplant outside: Jun 13 to Jun 27
Start indoors: Mar 21 to Apr 4Transplant outside: Jun 13 to Jun 27
Start indoors: Apr 4 to Apr 18Transplant outside: Jun 6 to Jun 20
Start indoors: Apr 4 to Apr 18Transplant outside: May 9 to May 23Sow outdoors: May 2 to Jun 6Plant for fall: Jul 24 to Aug 21
Start indoors: Apr 4 to Apr 18Transplant outside: May 2 to May 16Sow outdoors: May 2 to May 16Plant for fall: Jul 10 to Jul 31
Start indoors: Apr 4 to Apr 18Transplant outside: May 16 to May 30
Start indoors: Apr 4 to Apr 18Transplant outside: May 9 to May 23
Start indoors: Apr 4 to Apr 18Transplant outside: May 16 to May 30
Start indoors: Apr 18 to May 2Transplant outside: Jun 20 to Jul 4Sow outdoors: Jun 20 to Jul 4
Start indoors: Apr 18 to May 2Transplant outside: Jun 6 to Jun 20
Sow outdoors: Apr 18 to May 9Plant for fall: Jun 26 to Jul 17
Sow outdoors: Apr 18 to May 9Plant for fall: Jul 24 to Aug 14
Sow outdoors: Apr 25 to Jun 6Plant for fall: Aug 7 to Aug 28
Start indoors: May 2 to May 9Transplant outside: Jun 13 to Jun 20Sow outdoors: Jun 6 to Jun 20
Start indoors: May 2 to May 9Sow outdoors: Jun 6 to Jun 20Plant for fall: Jul 10 to Jul 24
Start indoors: May 2 to May 9Sow outdoors: Jun 6 to Jun 20
Start indoors: May 2 to May 9Transplant outside: Jun 13 to Jun 27
Sow outdoors: May 9 to Jun 6Plant for fall: Jun 26 to Jul 10
Sow outdoors: May 9 to Jun 6Plant for fall: Jul 10 to Jul 24
Sow outdoors: May 9 to May 30
Sow outdoors: May 16 to Jun 13Plant for fall: Jul 10 to Jul 24
Sow outdoors: May 16 to Jun 6Plant for fall: Jul 24 to Aug 14
Sow outdoors: Jun 6 to Jun 27
Sow outdoors: Jun 6 to Jun 20
Transplant outside: Jun 13 to Jul 4
Plant for fall: Sep 4 to Oct 9
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Echo, UT
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Mar 7 – Mar 21 | May 2 – May 16 | — | — |
| Peppers | Mar 21 – Apr 4 | Jun 13 – Jun 27 | — | — |
| Eggplant | Mar 21 – Apr 4 | Jun 13 – Jun 27 | — | — |
| Tomatoes | Apr 4 – Apr 18 | Jun 6 – Jun 20 | — | — |
| Lettuce | Apr 4 – Apr 18 | May 9 – May 23 | May 2 – Jun 6 | Jul 24 – Aug 21 |
| Kale | Apr 4 – Apr 18 | May 2 – May 16 | May 2 – May 16 | Jul 10 – Jul 31 |
| Broccoli | Apr 4 – Apr 18 | May 16 – May 30 | — | — |
| Cabbage | Apr 4 – Apr 18 | May 9 – May 23 | — | — |
| Cauliflower | Apr 4 – Apr 18 | May 16 – May 30 | — | — |
| Okra | Apr 18 – May 2 | Jun 20 – Jul 4 | Jun 20 – Jul 4 | — |
| Basil | Apr 18 – May 2 | Jun 6 – Jun 20 | — | — |
| Peas | — | — | Apr 18 – May 9 | Jun 26 – Jul 17 |
| Spinach | — | — | Apr 18 – May 9 | Jul 24 – Aug 14 |
| Radishes | — | — | Apr 25 – Jun 6 | Aug 7 – Aug 28 |
| Cucumbers | May 2 – May 9 | Jun 13 – Jun 20 | Jun 6 – Jun 20 | — |
| Zucchini & Summer Squash | May 2 – May 9 | — | Jun 6 – Jun 20 | Jul 10 – Jul 24 |
| Winter Squash & Pumpkins Warning: Your frost-free season is about 111 days, which is tight for winter squash & pumpkins (100+ days). Choose early varieties and use transplants or row covers. | May 2 – May 9 | — | Jun 6 – Jun 20 | — |
| Melons & Watermelon | May 2 – May 9 | Jun 13 – Jun 27 | — | — |
| Carrots | — | — | May 9 – Jun 6 | Jun 26 – Jul 10 |
| Beets | — | — | May 9 – Jun 6 | Jul 10 – Jul 24 |
| Potatoes | — | — | May 9 – May 30 | — |
| Swiss Chard | — | — | May 16 – Jun 13 | Jul 10 – Jul 24 |
| Cilantro | — | — | May 16 – Jun 6 | Jul 24 – Aug 14 |
| Green Beans | — | — | Jun 6 – Jun 27 | — |
| Sweet Corn | — | — | Jun 6 – Jun 20 | — |
| Sweet Potatoes Warning: Your frost-free season is about 111 days, which is tight for sweet potatoes (100+ days). Choose early varieties and use transplants or row covers. | — | Jun 13 – Jul 4 | — | — |
| Garlic | — | — | — | Sep 4 – Oct 9 |
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 Echo Dam, UT weather station, 3 km away (elevation 5,469 ft (1,667 m)).
Frost dates near Echo
- Henefer May 30 · Sep 18
- Croydon May 30 · Sep 18
- Coalville Jun 11 · Sep 12
- Morgan May 25 · Sep 24
- Peoa Jun 11 · Sep 12
- Oakley Jun 5 · Sep 17
- Park City May 29 · Sep 25
- Centerville Apr 25 · Oct 24
- Farmington Apr 19 · Oct 19
- Bountiful Apr 25 · Oct 24
Frequently asked questions
When is the last frost in Echo, UT?
The median last spring frost in Echo, UT is May 30. There is still about a 10% chance of frost after June 16, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Echo, UT?
The median first fall frost is September 18, with about a 10% chance of frost before September 4.
How long is the growing season in Echo, UT?
About 111 days between the median last spring frost and first fall frost.
What planting zone is Echo, UT?
Echo, UT is in USDA hardiness zone 6a.