Last frost date in Chubbuck, Idaho
May 16
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 June 6.
October 2
Average first frost in fall. 1 year in 10 it comes by September 14.
Source: NOAA U.S. Climate Normals 1991–2020, station Pocatello 2 NE (USC00107208), 3.5 miles from Chubbuck, elevation 4,832 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 16 | June 6 |
| First frost in fall | Sept 14 | Oct 2 | Oct 18 |
Frost-free days in an average year: 137
| Chance in a year | Average last in spring | Average first in fall | |
|---|---|---|---|
| Light frost (36°F) | Every year | June 5 | Sept 21 |
| Frost (32°F) | Every year | May 16 | Oct 2 |
| Hard freeze (28°F) | Every year | May 1 | Oct 13 |
Nights at 32°F or colder in an average year: 150
What to plant now in Chubbuck
- Spring planting calendar for an average last frost around May 20 Chubbuck: May 16
- Fall planting calendar for an average first frost around September 30 Chubbuck: October 2
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
- Pocatello 4 mi · last frost May 2
- Blackfoot 19 mi · last frost May 5
- Idaho Falls 44 mi · last frost May 9
- Rexburg 70 mi · last frost May 12
- Burley 73 mi · last frost May 7
Updated