Last frost date in Garden City, Idaho
May 17
Average last frost in spring. In an early year (1 in 10) it's over by April 27; in a late year (1 in 10) it comes after June 10.
October 12
Average first frost in fall. 1 year in 10 it comes by September 27.
Source: NOAA U.S. Climate Normals 1991–2020, station Boise 7 N (USC00101017), 6.7 miles from Garden City, elevation 3,885 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 27 | May 17 | June 10 |
| First frost in fall | Sept 27 | Oct 12 | Oct 30 |
Frost-free days in an average year: 147
| Chance in a year | Average last in spring | Average first in fall | |
|---|---|---|---|
| Light frost (36°F) | Every year | June 6 | Sept 29 |
| Frost (32°F) | Every year | May 17 | Oct 12 |
| Hard freeze (28°F) | Every year | Apr 27 | Oct 24 |
Nights at 32°F or colder in an average year: 125
What to plant now in Garden City
- Spring planting calendar for an average last frost around May 20 Garden City: May 17
- Fall planting calendar for an average first frost around October 10 Garden City: October 12
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 Idaho
- Boise City 6 mi · last frost Apr 24
- Eagle 10 mi · last frost Apr 30
- Nampa 15 mi · last frost Apr 29
- Mountain Home 48 mi · last frost May 2
- Jerome 111 mi · last frost May 2
Updated