Last frost date in Vernal, Utah
May 7
Average last frost in spring. In an early year (1 in 10) it's over by April 24; in a late year (1 in 10) it comes after May 28.
October 6
Average first frost in fall. 1 year in 10 it comes by September 23.
Source: NOAA U.S. Climate Normals 1991–2020, station Vernal (USC00429111), 0.8 miles from Vernal, elevation 5,345 ft. NOAA National Centers for Environmental Information. These are long-term averages, not a forecast.
| Early year | Average | Late year | |
|---|---|---|---|
| Last frost in spring | Apr 24 | May 7 | May 28 |
| First frost in fall | Sept 23 | Oct 6 | Oct 20 |
Frost-free days in an average year: 150
| Chance in a year | Average last in spring | Average first in fall | |
|---|---|---|---|
| Light frost (36°F) | Every year | May 23 | Sept 27 |
| Frost (32°F) | Every year | May 7 | Oct 6 |
| Hard freeze (28°F) | Every year | Apr 25 | Oct 18 |
Nights at 32°F or colder in an average year: 174
What to plant now in Vernal
- Spring planting calendar for an average last frost around May 10 Vernal: May 7
- Fall planting calendar for an average first frost around October 10 Vernal: October 6
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
- Heber 97 mi · last frost June 4
- Provo 112 mi · last frost Apr 18
- Spanish Fork 113 mi · last frost Apr 25
- Orem 114 mi · last frost Apr 19
- Highland 119 mi · last frost May 3
Updated