Last frost date in Spanish Fork, Utah
April 25
Average last frost in spring. In an early year (1 in 10) it's over by April 10; in a late year (1 in 10) it comes after May 13.
October 18
Average first frost in fall. 1 year in 10 it comes by October 4.
Source: NOAA U.S. Climate Normals 1991–2020, station Spanish Fk Pwr House (USC00428119), 3.1 miles from Spanish Fork, elevation 4,720 ft. NOAA National Centers for Environmental Information. These are long-term averages, not a forecast.
This station is also the nearest one for Mapleton and Salem, so their frost dates are the same as Spanish Fork's.
| Early year | Average | Late year | |
|---|---|---|---|
| Last frost in spring | Apr 10 | Apr 25 | May 13 |
| First frost in fall | Oct 4 | Oct 18 | Nov 1 |
Frost-free days in an average year: 174
| Chance in a year | Average last in spring | Average first in fall | |
|---|---|---|---|
| Light frost (36°F) | Every year | May 11 | Oct 6 |
| Frost (32°F) | Every year | Apr 25 | Oct 18 |
| Hard freeze (28°F) | Every year | Apr 9 | Oct 30 |
Nights at 32°F or colder in an average year: 118
What to plant now in Spanish Fork
- Spring planting calendar for an average last frost around April 20 Spanish Fork: April 25
- Fall planting calendar for an average first frost around October 20 Spanish Fork: October 18
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
- Payson 7 mi · last frost May 4
- Provo 9 mi · last frost Apr 18
- Orem 13 mi · last frost Apr 19
- American Fork 20 mi · last frost Apr 17
- Highland 23 mi · last frost May 3
Updated