Last frost date in West Allis, Wisconsin
April 26
Average last frost in spring. In an early year (1 in 10) it's over by April 12; in a late year (1 in 10) it comes after May 12.
October 22
Average first frost in fall. 1 year in 10 it comes by October 7.
Source: NOAA U.S. Climate Normals 1991–2020, station West Allis (USC00479046), 1.6 miles from West Allis, elevation 723 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 12 | Apr 26 | May 12 |
| First frost in fall | Oct 7 | Oct 22 | Nov 3 |
Frost-free days in an average year: 177
| Chance in a year | Average last in spring | Average first in fall | |
|---|---|---|---|
| Light frost (36°F) | Every year | May 8 | Oct 10 |
| Frost (32°F) | Every year | Apr 26 | Oct 22 |
| Hard freeze (28°F) | Every year | Apr 14 | Nov 1 |
Nights at 32°F or colder in an average year: 133
What to plant now in West Allis
- Spring planting calendar for an average last frost around April 30 West Allis: April 26
- Fall planting calendar for an average first frost around October 20 West Allis: October 22
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 Wisconsin
- Milwaukee 5 mi · last frost Apr 26
- New Berlin 6 mi · last frost May 3
- Brookfield 6 mi · last frost Apr 30
- Cudahy 9 mi · last frost Apr 19
- Waukesha 11 mi · last frost May 1
Updated