Last frost date in St. George, Utah
March 14
Average last frost in spring. In an early year (1 in 10) it's over by February 27; in a late year (1 in 10) it comes after April 6.
November 10
Average first frost in fall. 1 year in 10 it comes by October 27.
Source: NOAA U.S. Climate Normals 1991–2020, station St George (USC00427516), 3.3 miles from St. George, elevation 2,857 ft. NOAA National Centers for Environmental Information. These are long-term averages, not a forecast.
This station is also the nearest one for Ivins and Washington, so their frost dates are the same as St. George's.
| Early year | Average | Late year | |
|---|---|---|---|
| Last frost in spring | Feb 27 | Mar 14 | Apr 6 |
| First frost in fall | Oct 27 | Nov 10 | Nov 22 |
Frost-free days in an average year: 239
| Chance in a year | Average last in spring | Average first in fall | |
|---|---|---|---|
| Light frost (36°F) | Every year | Apr 3 | Nov 1 |
| Frost (32°F) | Every year | Mar 14 | Nov 10 |
| Hard freeze (28°F) | Every year | Feb 27 | Nov 20 |
Nights at 32°F or colder in an average year: 63
What to plant now in St. George
- 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 10 St. George: March 14
- Fall planting calendar for an average first frost around November 10 St. George: November 10
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
- Hurricane 13 mi · last frost Apr 1
- Cedar City 50 mi · last frost May 4
- Payson 227 mi · last frost May 4
- Spanish Fork 234 mi · last frost Apr 25
- Eagle Mountain 239 mi · last frost June 2
Updated