Last frost date in Hyrum, Utah
May 12
Average last frost in spring. In an early year (1 in 10) it's over by April 30; in a late year (1 in 10) it comes after May 29.
September 28
Average first frost in fall. 1 year in 10 it comes by September 14.
Source: NOAA U.S. Climate Normals 1991–2020, station Logan 5 SW Exp Farm (USC00425194), 3.3 miles from Hyrum, elevation 4,488 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 30 | May 12 | May 29 |
| First frost in fall | Sept 14 | Sept 28 | Oct 12 |
Frost-free days in an average year: 138
| Chance in a year | Average last in spring | Average first in fall | |
|---|---|---|---|
| Light frost (36°F) | Every year | May 31 | Sept 18 |
| Frost (32°F) | Every year | May 12 | Sept 28 |
| Hard freeze (28°F) | Every year | Apr 28 | Oct 9 |
Nights at 32°F or colder in an average year: 175
What to plant now in Hyrum
- Spring planting calendar for an average last frost around May 10 Hyrum: May 12
- Fall planting calendar for an average first frost around September 30 Hyrum: September 28
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
- Logan 7 mi · last frost May 8
- North Logan 10 mi · last frost Apr 30
- Brigham City 14 mi · last frost May 5
- Smithfield 14 mi · last frost May 8
- Tremonton 19 mi · last frost Apr 24
Updated