Frost dates for 84184 — Salt Lake City, UT
How Salt Lake City compares
- In 8 years out of 10, the last spring frost in Salt Lake City falls between March 17 and April 30, a 44-day window. The first fall frost falls between October 17 and November 13.
- The median last frost is 32 days earlier than the Utah median of May 10.
- Its 206-day growing season is longer than 93% of the 250 Utah places with a regular frost season (state median 148 days).
- The last frost is typical for zone 7b, where the median is Apr 5.
- The weather station records an average of 112 nights a year at or below 32°F.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | March 17 |
| 50% (median) | April 8 |
| 10% (safe for tender plants) | April 30 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | October 17 |
| 50% (median) | October 31 |
| 90% (late) | November 13 |
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 Salt Lake City, UT
Frost dates for 84184 — Salt Lake City, UT — last frost Apr 8, first frost Oct 31, zone 7b. whenisthelastfrost.com
When to plant vegetables in Salt Lake City, UT
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Jan 14 – Jan 28 | Mar 11 – Mar 25 | — | — |
| Peppers | Jan 28 – Feb 11 | Apr 22 – May 6 | — | — |
| Eggplant | Jan 28 – Feb 11 | Apr 22 – May 6 | — | — |
| Tomatoes | Feb 11 – Feb 25 | Apr 15 – Apr 29 | — | — |
| Lettuce | Feb 11 – Feb 25 | Mar 18 – Apr 1 | Mar 11 – Apr 15 | Sep 5 – Oct 3 |
| Kale | Feb 11 – Feb 25 | Mar 11 – Mar 25 | Mar 11 – Mar 25 | Aug 22 – Sep 12 |
| Broccoli | Feb 11 – Feb 25 | Mar 25 – Apr 8 | — | Jul 25 – Aug 15 |
| Cabbage | Feb 11 – Feb 25 | Mar 18 – Apr 1 | — | Jul 25 – Aug 15 |
| Cauliflower | Feb 11 – Feb 25 | Mar 25 – Apr 8 | — | Jul 25 – Aug 15 |
| Okra | Feb 25 – Mar 11 | Apr 29 – May 13 | Apr 29 – May 13 | — |
| Basil | Feb 25 – Mar 11 | Apr 15 – Apr 29 | — | — |
| Peas | — | — | Feb 25 – Mar 18 | Aug 8 – Aug 29 |
| Spinach | — | — | Feb 25 – Mar 18 | Sep 5 – Sep 26 |
| Radishes | — | — | Mar 4 – Apr 15 | Sep 19 – Oct 10 |
| Cucumbers | Mar 11 – Mar 18 | Apr 22 – Apr 29 | Apr 15 – Apr 29 | Aug 15 – Aug 29 |
| Zucchini & Summer Squash | Mar 11 – Mar 18 | — | Apr 15 – Apr 29 | Aug 22 – Sep 5 |
| Winter Squash & Pumpkins | Mar 11 – Mar 18 | — | Apr 15 – Apr 29 | — |
| Melons & Watermelon | Mar 11 – Mar 18 | Apr 22 – May 6 | — | — |
| Carrots | — | — | Mar 18 – Apr 15 | Aug 8 – Aug 22 |
| Beets | — | — | Mar 18 – Apr 15 | Aug 22 – Sep 5 |
| Potatoes | — | — | Mar 18 – Apr 8 | — |
| Swiss Chard | — | — | Mar 25 – Apr 22 | Aug 22 – Sep 5 |
| Cilantro | — | — | Mar 25 – Apr 15 | Sep 5 – Sep 26 |
| Green Beans | — | — | Apr 15 – May 6 | Aug 15 – Aug 29 |
| Sweet Corn | — | — | Apr 15 – Apr 29 | — |
| Sweet Potatoes | — | Apr 22 – May 13 | — | — |
| Garlic | — | — | — | Oct 17 – Nov 21 |
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 Salt Lake City Intl Ap, UT weather station, 11 km away (elevation 4,226 ft (1,288 m)).
ZIP codes in Salt Lake City: 84101 84102 84103 84104 84105 84106 84107 84108 84109 84110 84111 84112 84113 84114 84115 84116 84117 84118 84121 84122 84123 84124 84125 84126 84127 84129 84130 84131 84132 84133 84134 84136 84138 84139 84141 84143 84145 84147 84148 84150 84151 84152 84157 84158 84165 84170 84171 84180 84184 84189 84190 84199
Frost dates near Salt Lake City
- West Valley City Apr 8 · Oct 31
- West Jordan Apr 18 · Oct 22
- Midvale Apr 29 · Oct 22
- Magna Apr 3 · Nov 4
- Sandy Apr 29 · Oct 22
- South Jordan Apr 18 · Oct 22
- Bingham Canyon Apr 18 · Oct 22
- North Salt Lake Apr 24 · Oct 19
Frequently asked questions
When is the last frost in Salt Lake City, UT?
The median last spring frost in Salt Lake City, UT is April 8. There is still about a 10% chance of frost after April 30, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Salt Lake City, UT?
The median first fall frost is October 31, with about a 10% chance of frost before October 17.
How long is the growing season in Salt Lake City, UT?
About 206 days between the median last spring frost and first fall frost.
What planting zone is Salt Lake City, UT?
Salt Lake City, UT is in USDA hardiness zone 7b.