Blanding, UT frost dates
Last spring frostApr 28median date
First fall frostOct 21median date
Growing season176 daysfrost-free
Hardiness zone7aZone 7a
How Blanding compares
- In 8 years out of 10, the last spring frost in Blanding falls between April 13 and May 16, a 33-day window. The first fall frost falls between October 6 and November 6.
- The median last frost is 12 days earlier than the Utah median of May 10.
- Its 176-day growing season is longer than 74% of the 250 Utah places with a regular frost season (state median 148 days).
- The last frost is 12 days later than the zone 7a median of Apr 16. Hardiness zones measure winter cold, not season length, so use these dates rather than a zone 7a chart.
- The weather station records an average of 127 nights a year at or below 32°F.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | April 13 |
| 50% (median) | April 28 |
| 10% (safe for tender plants) | May 16 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | October 6 |
| 50% (median) | October 21 |
| 90% (late) | November 6 |
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 Blanding, UT
Blanding, UT frost dates — last frost Apr 28, first frost Oct 21, zone 7a. whenisthelastfrost.com
Crop
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Start indoors: Feb 3 to Feb 17Transplant outside: Mar 31 to Apr 14
Start indoors: Feb 17 to Mar 3Transplant outside: May 12 to May 26
Start indoors: Feb 17 to Mar 3Transplant outside: May 12 to May 26
Start indoors: Mar 3 to Mar 17Transplant outside: May 5 to May 19
Start indoors: Mar 3 to Mar 17Transplant outside: Apr 7 to Apr 21Sow outdoors: Mar 31 to May 5Plant for fall: Aug 26 to Sep 23
Start indoors: Mar 3 to Mar 17Transplant outside: Mar 31 to Apr 14Sow outdoors: Mar 31 to Apr 14Plant for fall: Aug 12 to Sep 2
Start indoors: Mar 3 to Mar 17Transplant outside: Apr 14 to Apr 28Plant for fall: Jul 15 to Aug 5
Start indoors: Mar 3 to Mar 17Transplant outside: Apr 7 to Apr 21Plant for fall: Jul 15 to Aug 5
Start indoors: Mar 3 to Mar 17Transplant outside: Apr 14 to Apr 28Plant for fall: Jul 15 to Aug 5
Start indoors: Mar 17 to Mar 31Transplant outside: May 19 to Jun 2Sow outdoors: May 19 to Jun 2
Start indoors: Mar 17 to Mar 31Transplant outside: May 5 to May 19
Sow outdoors: Mar 17 to Apr 7Plant for fall: Jul 29 to Aug 19
Sow outdoors: Mar 17 to Apr 7Plant for fall: Aug 26 to Sep 16
Sow outdoors: Mar 24 to May 5Plant for fall: Sep 9 to Sep 30
Start indoors: Mar 31 to Apr 7Transplant outside: May 12 to May 19Sow outdoors: May 5 to May 19Plant for fall: Aug 5 to Aug 19
Start indoors: Mar 31 to Apr 7Sow outdoors: May 5 to May 19Plant for fall: Aug 12 to Aug 26
Start indoors: Mar 31 to Apr 7Sow outdoors: May 5 to May 19
Start indoors: Mar 31 to Apr 7Transplant outside: May 12 to May 26
Sow outdoors: Apr 7 to May 5Plant for fall: Jul 29 to Aug 12
Sow outdoors: Apr 7 to May 5Plant for fall: Aug 12 to Aug 26
Sow outdoors: Apr 7 to Apr 28
Sow outdoors: Apr 14 to May 12Plant for fall: Aug 12 to Aug 26
Sow outdoors: Apr 14 to May 5Plant for fall: Aug 26 to Sep 16
Sow outdoors: May 5 to May 26Plant for fall: Aug 5 to Aug 19
Sow outdoors: May 5 to May 19
Transplant outside: May 12 to Jun 2
Plant for fall: Oct 7 to Nov 11
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Blanding, UT
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Feb 3 – Feb 17 | Mar 31 – Apr 14 | — | — |
| Peppers | Feb 17 – Mar 3 | May 12 – May 26 | — | — |
| Eggplant | Feb 17 – Mar 3 | May 12 – May 26 | — | — |
| Tomatoes | Mar 3 – Mar 17 | May 5 – May 19 | — | — |
| Lettuce | Mar 3 – Mar 17 | Apr 7 – Apr 21 | Mar 31 – May 5 | Aug 26 – Sep 23 |
| Kale | Mar 3 – Mar 17 | Mar 31 – Apr 14 | Mar 31 – Apr 14 | Aug 12 – Sep 2 |
| Broccoli | Mar 3 – Mar 17 | Apr 14 – Apr 28 | — | Jul 15 – Aug 5 |
| Cabbage | Mar 3 – Mar 17 | Apr 7 – Apr 21 | — | Jul 15 – Aug 5 |
| Cauliflower | Mar 3 – Mar 17 | Apr 14 – Apr 28 | — | Jul 15 – Aug 5 |
| Okra | Mar 17 – Mar 31 | May 19 – Jun 2 | May 19 – Jun 2 | — |
| Basil | Mar 17 – Mar 31 | May 5 – May 19 | — | — |
| Peas | — | — | Mar 17 – Apr 7 | Jul 29 – Aug 19 |
| Spinach | — | — | Mar 17 – Apr 7 | Aug 26 – Sep 16 |
| Radishes | — | — | Mar 24 – May 5 | Sep 9 – Sep 30 |
| Cucumbers | Mar 31 – Apr 7 | May 12 – May 19 | May 5 – May 19 | Aug 5 – Aug 19 |
| Zucchini & Summer Squash | Mar 31 – Apr 7 | — | May 5 – May 19 | Aug 12 – Aug 26 |
| Winter Squash & Pumpkins | Mar 31 – Apr 7 | — | May 5 – May 19 | — |
| Melons & Watermelon | Mar 31 – Apr 7 | May 12 – May 26 | — | — |
| Carrots | — | — | Apr 7 – May 5 | Jul 29 – Aug 12 |
| Beets | — | — | Apr 7 – May 5 | Aug 12 – Aug 26 |
| Potatoes | — | — | Apr 7 – Apr 28 | — |
| Swiss Chard | — | — | Apr 14 – May 12 | Aug 12 – Aug 26 |
| Cilantro | — | — | Apr 14 – May 5 | Aug 26 – Sep 16 |
| Green Beans | — | — | May 5 – May 26 | Aug 5 – Aug 19 |
| Sweet Corn | — | — | May 5 – May 19 | — |
| Sweet Potatoes | — | May 12 – Jun 2 | — | — |
| Garlic | — | — | — | Oct 7 – Nov 11 |
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 Blanding, UT weather station, 3 km away (elevation 6,033 ft (1,839 m)).
Frost dates near Blanding
- Bluff Apr 24 · Oct 13
- Monticello May 19 · Oct 2
- Aneth May 2 · Oct 10
- Montezuma Creek May 2 · Oct 10
- Lake Powell Mar 9 · Nov 20
- Mexican Hat Apr 11 · Oct 30
- La Sal May 17 · Oct 6
- Monument Valley Apr 10 · Nov 1
- Moab Apr 11 · Oct 23
- Hanksville May 5 · Oct 3
Frequently asked questions
When is the last frost in Blanding, UT?
The median last spring frost in Blanding, UT is April 28. There is still about a 10% chance of frost after May 16, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Blanding, UT?
The median first fall frost is October 21, with about a 10% chance of frost before October 6.
How long is the growing season in Blanding, UT?
About 176 days between the median last spring frost and first fall frost.
What planting zone is Blanding, UT?
Blanding, UT is in USDA hardiness zone 7a.