Last frost date in Carroll, Iowa
April 27
Average last frost in spring. In an early year (1 in 10) it's over by April 14; in a late year (1 in 10) it comes after May 8.
October 10
Average first frost in fall. 1 year in 10 it comes by September 25.
Source: NOAA U.S. Climate Normals 1991–2020, station Carroll (USC00131233), 0.8 miles from Carroll, elevation 1,240 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 14 | Apr 27 | May 8 |
| First frost in fall | Sept 25 | Oct 10 | Oct 24 |
Frost-free days in an average year: 166
| Chance in a year | Average last in spring | Average first in fall | |
|---|---|---|---|
| Light frost (36°F) | Every year | May 6 | Sept 30 |
| Frost (32°F) | Every year | Apr 27 | Oct 10 |
| Hard freeze (28°F) | Every year | Apr 16 | Oct 21 |
Nights at 32°F or colder in an average year: 153
What to plant now in Carroll
- Spring planting calendar for an average last frost around April 30 Carroll: April 27
- Fall planting calendar for an average first frost around October 10 Carroll: October 10
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 Iowa
- Storm Lake 43 mi · last frost Apr 25
- Fort Dodge 47 mi · last frost Apr 28
- Boone 51 mi · last frost Apr 28
- Urbandale 63 mi · last frost Apr 19
- Ames 64 mi · last frost Apr 26
Updated