Last frost date in Salt Lake City, Utah
March 31
Average last frost in spring. In an early year (1 in 10) it's over by March 7; in a late year (1 in 10) it comes after April 19.
November 8
Average first frost in fall. 1 year in 10 it comes by October 23.
Source: NOAA U.S. Climate Normals 1991–2020, station Salt Lake Triad Ctr (USC00427606), 1.9 miles from Salt Lake City, elevation 4,280 ft. NOAA National Centers for Environmental Information. These are long-term averages, not a forecast.
This station is also the nearest one for South Salt Lake and Taylorsville, so their frost dates are the same as Salt Lake City's.
| Early year | Average | Late year | |
|---|---|---|---|
| Last frost in spring | Mar 7 | Mar 31 | Apr 19 |
| First frost in fall | Oct 23 | Nov 8 | Nov 25 |
Frost-free days in an average year: 224
| Chance in a year | Average last in spring | Average first in fall | |
|---|---|---|---|
| Light frost (36°F) | Every year | Apr 18 | Oct 28 |
| Frost (32°F) | Every year | Mar 31 | Nov 8 |
| Hard freeze (28°F) | Every year | Mar 8 | Nov 18 |
Nights at 32°F or colder in an average year: 81
What to plant now in Salt Lake City
- Mustard greensAug 15 – Nov 1Now
- Garden peasSept 1 – Nov 1Now
- ParsleySept 1 – Nov 15Now
- RadishesSept 1 – Nov 15Now
- SpinachSept 15 – Nov 1Now
- Corn saladOct 1 – Dec 1Now
- Onion setsOct 1 – Dec 1Now
- Upland cressOct 1 – Dec 1Now
- Asparagus plantsDec 1 – Jan 1Soon
- Spring planting calendar for an average last frost around March 30 Salt Lake City: March 31
- Fall planting calendar for an average first frost around November 10 Salt Lake City: November 8
Planting dates: USDA Home and Garden Bulletin No. 9 (1967), “Suburban and Farm Vegetable Gardens,” tables 4 and 5. How we match the table.
Nearby in Utah
- North Salt Lake 5 mi · last frost Apr 24
- West Valley City 7 mi · last frost Apr 8
- Bountiful 8 mi · last frost Apr 25
- Millcreek 8 mi · last frost Apr 25
- West Jordan 13 mi · last frost Apr 18
Updated